{"id":570,"date":"2023-12-17T21:32:08","date_gmt":"2023-12-18T05:32:08","guid":{"rendered":"https:\/\/devblogs.microsoft.com\/dotnet-ch\/?p=570"},"modified":"2024-05-16T18:22:10","modified_gmt":"2024-05-17T01:22:10","slug":"net-8-%e7%bd%91%e7%bb%9c%e6%94%b9%e8%bf%9b","status":"publish","type":"post","link":"https:\/\/devblogs.microsoft.com\/dotnet-ch\/net-8-%e7%bd%91%e7%bb%9c%e6%94%b9%e8%bf%9b\/","title":{"rendered":".NET 8 \u7f51\u7edc\u6539\u8fdb"},"content":{"rendered":"<p style=\"text-align: center;\"><em>\u672c\u7bc7\u7ffb\u8bd1\u4e8eM\u00e1\u0148a\u548cNatalia Kondratyeva\u7684<a href=\"https:\/\/devblogs.microsoft.com\/dotnet\/dotnet-8-networking-improvements\/\">.NET 8 Networking Improvements &#8211; .NET Blog (microsoft.com)<\/a>\u00a0<\/em><\/p>\n<p><span data-contrast=\"auto\">\u968f\u7740\u65b0\u7684<\/span><span data-contrast=\"auto\">.<\/span><a href=\"https:\/\/devblogs.microsoft.com\/dotnet\/announcing-dotnet-8\/\"><span data-contrast=\"auto\">NET <\/span><span data-contrast=\"none\">\u7248\u672c\u7684\u53d1\u5e03<\/span><\/a><span data-contrast=\"auto\">\uff0c\u53d1\u8868\u6709\u5173\u7f51\u7edc\u7a7a\u95f4\u4e2d\u65b0\u7684\u6709\u8da3\u53d8\u5316\u7684\u535a\u5ba2\u6587\u7ae0\u5df2\u7ecf\u6210\u4e3a\u4e00\u79cd\u4f20\u7edf\u3002\u4eca\u5e74\uff0c\u6211\u4eec\u8981\u4ecb\u7ecd<\/span><a href=\"https:\/\/devblogs.microsoft.com\/dotnet\/dotnet-8-networking-improvements\/#http\"><span data-contrast=\"none\">HTTP<\/span><\/a><span data-contrast=\"auto\">\u90e8\u5206\u7684\u53d8\u5316\u3001\u65b0\u589e<\/span><a href=\"https:\/\/devblogs.microsoft.com\/dotnet\/dotnet-8-networking-improvements\/#metrics\"><span data-contrast=\"none\">\u6307\u6807<\/span><\/a><span data-contrast=\"auto\">\u3001\u65b0\u7684<\/span><span data-contrast=\"auto\">HttpClientFactoryAPI <\/span><span data-contrast=\"auto\">\u7b49\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<h3><b><span data-contrast=\"auto\">HTTP<\/span><\/b><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/h3>\n<h4><b><span data-contrast=\"auto\">\u6307\u6807<\/span><\/b><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/h4>\n<p><span data-contrast=\"auto\">.NET 8 <\/span><span data-contrast=\"auto\">\u4f7f\u7528<\/span><span data-contrast=\"auto\"> .NET 6 <\/span><span data-contrast=\"auto\">\u4e2d\u5f15\u5165\u7684<\/span> <a href=\"https:\/\/learn.microsoft.com\/en-us\/dotnet\/core\/diagnostics\/metrics\"><span data-contrast=\"auto\">System.Diagnostics.Metrics<\/span><span data-contrast=\"none\"> API<\/span><\/a> <span data-contrast=\"auto\">\u5c06\u5185\u7f6e<\/span><span data-contrast=\"auto\"> HTTP <\/span><span data-contrast=\"auto\">\u6307\u6807\u6dfb\u52a0\u5230<\/span><span data-contrast=\"auto\"> ASP.NET Core <\/span><span data-contrast=\"auto\">\u548c<\/span><span data-contrast=\"auto\"><span style=\"color: #ff0000;\"> HttpClient<\/span>\u3002Metrics API <\/span><span data-contrast=\"auto\">\u548c\u65b0\u5185\u7f6e\u6307\u6807\u7684\u8bed\u4e49\u90fd\u662f\u4e0e<\/span><span data-contrast=\"auto\"> OpenTelemetry <\/span><span data-contrast=\"auto\">\u5bc6\u5207\u5408\u4f5c\u8bbe\u8ba1\u7684\uff0c\u786e\u4fdd\u65b0\u6307\u6807\u7b26\u5408\u6807\u51c6\uff0c\u5e76\u4e0e<\/span> <a href=\"https:\/\/prometheus.io\/\"><span data-contrast=\"none\">Prometheus<\/span><\/a> <span data-contrast=\"auto\">\u548c<\/span> <a href=\"https:\/\/grafana.com\/\"><span data-contrast=\"none\">Grafana<\/span><\/a> <span data-contrast=\"auto\">\u7b49\u6d41\u884c\u5de5\u5177\u826f\u597d\u914d\u5408<\/span><span data-contrast=\"auto\">\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<p><span style=\"color: #ff0000;\" data-contrast=\"auto\">System.Diagnostics.MetricsAPI <\/span><span data-contrast=\"auto\">\u5f15\u5165\u4e86\u8bb8\u591a<\/span><span data-contrast=\"auto\"> EventCounters <\/span><span data-contrast=\"auto\">\u6240\u7f3a\u5c11\u7684\u65b0\u529f\u80fd\u3002\u65b0\u7684\u5185\u7f6e\u6307\u6807\u5e7f\u6cdb\u5229\u7528\u4e86\u8fd9\u4e9b\u529f\u80fd\uff0c\u4ece\u800c\u901a\u8fc7\u66f4\u7b80\u5355\u3001\u66f4\u4f18\u96c5\u7684\u5de5\u5177\u5b9e\u73b0\u4e86\u66f4\u5e7f\u6cdb\u7684\u529f\u80fd\u3002\u4e3e\u51e0\u4e2a\u4f8b\u5b50\uff1a<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<p><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><a style=\"background-color: #f7f7f9; font-size: 1rem; text-align: var(--bs-body-text-align);\" href=\"https:\/\/learn.microsoft.com\/en-us\/dotnet\/api\/system.diagnostics.metrics.meter.createhistogram?view=net-8.0\"><span data-contrast=\"none\">Histograms<\/span><\/a><span style=\"font-size: 1rem; text-align: var(--bs-body-text-align);\" data-contrast=\"auto\">\u5141\u8bb8\u6211\u4eec\u80fd\u591f\u62a5\u544a\u6301\u7eed\u65f6\u95f4\uff0c\u4f8b\u5982\u8bf7\u6c42\u6301\u7eed\u65f6\u95f4<\/span><span style=\"font-size: 1rem; text-align: var(--bs-body-text-align);\" data-contrast=\"auto\"> ( <\/span><a style=\"background-color: #f7f7f9; font-size: 1rem; text-align: var(--bs-body-text-align);\" href=\"https:\/\/learn.microsoft.com\/en-us\/dotnet\/core\/diagnostics\/built-in-metrics-system-net#instrument-httpclientconnectionduration\"><span data-contrast=\"none\">http.client.request.duration<\/span><\/a><span style=\"font-size: 1rem; text-align: var(--bs-body-text-align);\" data-contrast=\"auto\">) <\/span><span style=\"font-size: 1rem; text-align: var(--bs-body-text-align);\" data-contrast=\"auto\">\u6216\u8fde\u63a5\u6301\u7eed\u65f6\u95f4<\/span><span style=\"font-size: 1rem; text-align: var(--bs-body-text-align);\" data-contrast=\"auto\"> ( <\/span><a style=\"background-color: #f7f7f9; font-size: 1rem; text-align: var(--bs-body-text-align);\" href=\"https:\/\/learn.microsoft.com\/en-us\/dotnet\/core\/diagnostics\/built-in-metrics-system-net#instrument-httpclientconnectionduration\"><span data-contrast=\"none\">http.client.connection.duration<\/span><\/a><span style=\"font-size: 1rem; text-align: var(--bs-body-text-align);\" data-contrast=\"auto\">)<\/span><span style=\"font-size: 1rem; text-align: var(--bs-body-text-align);\" data-contrast=\"auto\">\u3002\u8fd9\u4e9b\u662f\u6ca1\u6709<\/span><span style=\"font-size: 1rem; text-align: var(--bs-body-text-align);\" data-contrast=\"auto\"> EventCounter <\/span><span style=\"font-size: 1rem; text-align: var(--bs-body-text-align);\" data-contrast=\"auto\">\u5bf9\u5e94\u9879\u7684\u65b0\u6307\u6807\u3002<\/span><span style=\"font-size: 1rem; text-align: var(--bs-body-text-align);\" data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<ul>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"14\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:860,&quot;335559991&quot;:440,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"2\" data-aria-level=\"1\"><span data-contrast=\"auto\">\u00a0<\/span><a href=\"https:\/\/learn.microsoft.com\/en-us\/dotnet\/core\/diagnostics\/metrics-instrumentation#multi-dimensional-metrics\"><span data-contrast=\"none\">Multi-dimensionality<\/span><\/a><span data-contrast=\"auto\">\u5141\u8bb8\u6211\u4eec\u5c06\u6807\u7b7e\uff08\u53c8\u540d\u5c5e\u6027\u6216\u6807\u7b7e\uff09\u9644\u52a0\u5230\u6d4b\u91cf\u503c\u4e0a\uff0c\u8fd9\u610f\u5473\u7740\u6211\u4eec\u53ef\u4ee5\u5c06<\/span><span style=\"color: #ff0000;\" data-contrast=\"auto\"> server.address <\/span><span data-contrast=\"auto\">\uff08\u6807\u8bc6<\/span> <a href=\"https:\/\/www.rfc-editor.org\/rfc\/rfc9110.html#name-uri-origin\"><span data-contrast=\"auto\">URI <\/span><span data-contrast=\"none\">\u6765\u6e90<\/span><\/a><span data-contrast=\"auto\">\uff09\u6216<\/span><span data-contrast=\"auto\"><span style=\"color: #ff0000;\"> error.type<\/span> <\/span><span data-contrast=\"auto\">\uff08\u63cf\u8ff0\u8bf7\u6c42\u5931\u8d25\u65f6\u7684\u9519\u8bef\u539f\u56e0\uff09\u4e4b\u7c7b\u7684\u4fe1\u606f\u4e0e\u6d4b\u91cf\u503c\u4e00\u8d77\u62a5\u544a<\/span><span data-contrast=\"auto\">\u3002 <\/span><span data-contrast=\"auto\">\u591a\u7ef4\u8fd8\u53ef\u4ee5\u5b9e\u73b0\u7b80\u5316\uff1a\u4e3a\u4e86\u62a5\u544a\u6253\u5f00\u7684<\/span><span data-contrast=\"auto\"> HTTP <\/span><span data-contrast=\"auto\">\u8fde\u63a5\u6570<\/span><span data-contrast=\"auto\">\uff0c<span style=\"color: #ff0000;\">SocketsHttpHandler<\/span> <\/span><span data-contrast=\"auto\">\u4f7f\u7528<\/span><span data-contrast=\"auto\"> 3 <\/span><span data-contrast=\"auto\">\u4e2a<\/span><span data-contrast=\"auto\"> EventCounters\uff1a<\/span><a href=\"https:\/\/learn.microsoft.com\/en-us\/dotnet\/core\/diagnostics\/available-counters#systemnethttp-counters\"><span data-contrast=\"auto\">http11-connections-current-total\u3001http20-connections-current-total <\/span><span data-contrast=\"auto\">\u548c<\/span><span data-contrast=\"none\"> http30-connections-current-total<\/span><\/a><span data-contrast=\"auto\">\uff0c<\/span><span data-contrast=\"auto\">\u800c\u8fd9\u4e9b\u8ba1\u6570\u5668\u7684<\/span><span data-contrast=\"auto\"> Metrics <\/span><span data-contrast=\"auto\">\u7b49\u6548\u9879\u662f\u5355\u4e2a\u5de5\u5177<\/span> <a href=\"https:\/\/learn.microsoft.com\/en-us\/dotnet\/core\/diagnostics\/built-in-metrics-system-net#instrument-httpclientopen_connections\"><span data-contrast=\"none\">http.client.open_connections<\/span><\/a><span data-contrast=\"auto\">\uff0c\u5176\u4e2d\u4f7f\u7528<\/span><span style=\"color: #ff0000;\" data-contrast=\"auto\"> network.protocol.version <\/span><span data-contrast=\"auto\">\u6807\u8bb0\u62a5\u544a<\/span><span data-contrast=\"auto\"> HTTP <\/span><span data-contrast=\"auto\">\u7248\u672c<\/span><span data-contrast=\"auto\">\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/li>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"14\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:860,&quot;335559991&quot;:440,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"3\" data-aria-level=\"1\"><span data-contrast=\"auto\">\u4e3a\u4e86\u5e2e\u52a9\u5185\u7f6e\u6807\u7b7e\u4e0d\u8db3\u4ee5\u5bf9\u4f20\u51fa<\/span><span data-contrast=\"auto\"> HTTP <\/span><span data-contrast=\"auto\">\u8bf7\u6c42\u8fdb\u884c\u5206\u7c7b\u7684\u7528\u4f8b\uff0c<\/span><span style=\"color: #ff0000;\" data-contrast=\"auto\">http.client.request.duration <\/span><span data-contrast=\"auto\">\u6307\u6807\u652f\u6301\u6ce8\u5165\u7528\u6237\u5b9a\u4e49\u7684\u6807\u7b7e\u3002<\/span> <span data-contrast=\"auto\">\u8fd9\u79f0\u4e3a<\/span><a href=\"https:\/\/learn.microsoft.com\/en-us\/dotnet\/fundamentals\/networking\/telemetry\/metrics#enrichment\"><span data-contrast=\"none\">\u6269\u5145<\/span><\/a><span data-contrast=\"auto\">\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/li>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"14\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:860,&quot;335559991&quot;:440,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"4\" data-aria-level=\"1\"><a href=\"https:\/\/learn.microsoft.com\/en-us\/dotnet\/fundamentals\/networking\/telemetry\/metrics#imeterfactory-and-ihttpclientfactory-integration\"><span data-contrast=\"auto\">IMeterFactory <\/span><span data-contrast=\"none\">\u96c6\u6210<\/span><\/a><span data-contrast=\"auto\">\u53ef\u4ee5\u9694\u79bb\u7528\u4e8e\u53d1\u51fa<\/span><span data-contrast=\"auto\"> HTTP <\/span><span data-contrast=\"auto\">\u6307\u6807\u7684<\/span> <a href=\"https:\/\/learn.microsoft.com\/en-us\/dotnet\/api\/system.diagnostics.metrics.meter?view=net-8.0\"><span data-contrast=\"auto\">Meter <\/span><span data-contrast=\"none\">\u5b9e\u4f8b<\/span><\/a><span data-contrast=\"auto\">\uff0c\u4ece\u800c\u66f4\u8f7b\u677e\u5730\u7f16\u5199\u9488\u5bf9\u5185\u7f6e\u6d4b\u91cf\u503c\u8fd0\u884c\u9a8c\u8bc1\u7684\u6d4b\u8bd5\uff0c\u5e76\u542f\u7528\u6b64\u7c7b\u6d4b\u8bd5\u7684\u5e76\u884c\u6267\u884c<\/span><span data-contrast=\"auto\">\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/li>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"14\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:860,&quot;335559991&quot;:440,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"5\" data-aria-level=\"1\"><span data-contrast=\"auto\">\u867d\u7136\u8fd9\u5e76\u4e0d\u662f\u7279\u5b9a\u4e8e\u5185\u7f6e\u7f51\u7edc\u6307\u6807\uff0c\u4f46\u503c\u5f97\u4e00\u63d0\u7684\u662f<\/span><span style=\"color: #ff0000;\" data-contrast=\"auto\"> System.Digangostics.Metrics <\/span><span data-contrast=\"auto\">\u4e2d\u7684\u96c6\u5408<\/span><span data-contrast=\"auto\"> API <\/span><span data-contrast=\"auto\">\u4e5f\u66f4\u9ad8\u7ea7\uff1a\u5b83\u4eec\u662f\u5f3a\u7c7b\u578b\u4e14\u6027\u80fd\u66f4\u9ad8\uff0c\u5e76\u4e14\u5141\u8bb8\u591a\u4e2a\u540c\u65f6\u4fa6\u542c\u5668\u548c\u4fa6\u542c\u5668\u8bbf\u95ee\u672a\u805a\u5408\u7684\u6d4b\u91cf\u7ed3\u679c<\/span><span data-contrast=\"auto\">\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/li>\n<\/ul>\n<p><span data-contrast=\"auto\">\u8fd9\u4e9b\u4f18\u52bf\u7ed3\u5408\u5728\u4e00\u8d77\u5e26\u6765\u4e86\u66f4\u597d\u3001\u66f4\u4e30\u5bcc\u7684\u6307\u6807\uff0c\u8fd9\u4e9b\u6307\u6807\u53ef\u4ee5\u901a\u8fc7<\/span><span data-contrast=\"auto\"> Prometheus <\/span><span data-contrast=\"auto\">\u7b49\u7b2c\u4e09\u65b9\u5de5\u5177\u66f4\u6709\u6548\u5730\u6536\u96c6\u3002\u7531\u4e8e<\/span><a href=\"https:\/\/prometheus.io\/docs\/prometheus\/latest\/querying\/basics\/\"><span data-contrast=\"auto\">PromQL\uff08Prometheus <\/span><span data-contrast=\"none\">\u67e5\u8be2\u8bed\u8a00\uff09<\/span><\/a><span data-contrast=\"auto\">\u7684\u7075\u6d3b\u6027\uff0c\u5b83\u5141\u8bb8\u9488\u5bf9\u4ece<\/span><span data-contrast=\"auto\"> .NET <\/span><span data-contrast=\"auto\">\u7f51\u7edc\u5806\u6808\u6536\u96c6\u7684\u591a\u7ef4\u6307\u6807\u521b\u5efa\u590d\u6742\u7684\u67e5\u8be2\uff0c\u7528\u6237\u73b0\u5728\u53ef\u4ee5\u6df1\u5165\u4e86\u89e3<\/span><span data-contrast=\"auto\"> HttpClient <\/span><span data-contrast=\"auto\">\u548c<\/span><span data-contrast=\"auto\"><span style=\"color: #ff0000;\"> SocketsHttpHandler<\/span> <\/span><span data-contrast=\"auto\">\u5b9e\u4f8b\u7684\u72b6\u6001\u548c\u8fd0\u884c\u72b6\u51b5\uff0c\u8fd9\u5728\u4ee5\u524d\u662f\u4e0d\u53ef\u80fd\u7684<\/span><span data-contrast=\"auto\">\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">\u4e0d\u8db3\u4e4b\u5904\u5728\u4e8e\uff0c\u5728<\/span><span data-contrast=\"auto\"> .NET 8 <\/span><span data-contrast=\"auto\">\u4e2d\uff0c\u53ea\u6709<\/span><span style=\"color: #ff0000;\" data-contrast=\"auto\"> System.Net.Http <\/span><span data-contrast=\"auto\">\u548c<\/span><span style=\"color: #ff0000;\" data-contrast=\"auto\"> System.Net.NameResolution <\/span><span data-contrast=\"auto\">\u7ec4\u4ef6\u662f\u4f7f\u7528<\/span><span style=\"color: #ff0000;\" data-contrast=\"auto\"> System.Diagnostics.Metrics <\/span><span data-contrast=\"auto\">\u8fdb\u884c\u68c0\u6d4b\u7684\uff0c\u8fd9\u610f\u5473\u7740\u60a8\u4ecd\u7136\u9700\u8981\u4f7f\u7528<\/span><span style=\"color: #ff0000;\" data-contrast=\"auto\"> EventCounters <\/span><span data-contrast=\"auto\">\u4ece\u5806\u6808\u7684\u8f83\u4f4e\u5c42\uff08\u4f8b\u5982<\/span><span style=\"color: #ff0000;\" data-contrast=\"auto\">System.Net.Sockets<\/span><span data-contrast=\"auto\">\uff09\u63d0\u53d6\u8ba1\u6570\u5668<\/span><span data-contrast=\"auto\">. <\/span><span data-contrast=\"auto\">\u867d\u7136\u4ecd\u7136\u652f\u6301\u4ee5\u524d\u7248\u672c\u4e2d\u5b58\u5728\u7684\u6240\u6709\u5185\u7f6e<\/span><span style=\"color: #ff0000;\" data-contrast=\"auto\"> EventCounters<\/span><span data-contrast=\"auto\">\uff0c\u4f46<\/span><span data-contrast=\"auto\"> .NET <\/span><span data-contrast=\"auto\">\u56e2\u961f\u9884\u8ba1\u4e0d\u4f1a\u5bf9<\/span><span style=\"color: #ff0000;\" data-contrast=\"auto\"> EventCounters <\/span><span data-contrast=\"auto\">\u8fdb\u884c\u5927\u91cf\u65b0\u6295\u8d44\uff0c\u5e76\u4e14\u5728\u672a\u6765\u7684\u7248\u672c\u4e2d\u4f1a\u4f7f\u7528<\/span><span style=\"color: #ff0000;\" data-contrast=\"auto\">System.Diagnostics.Metrics<\/span><span data-contrast=\"auto\">\u6dfb\u52a0\u65b0\u7684\u5185\u7f6e\u68c0\u6d4b\u5de5\u5177<\/span><span data-contrast=\"auto\">\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">\u6709\u5173\u4f7f\u7528\u5185\u7f6e<\/span><span data-contrast=\"auto\"> HTTP <\/span><span data-contrast=\"auto\">\u6307\u6807\u7684\u66f4\u591a\u4fe1\u606f\uff0c\u8bf7\u9605\u8bfb\u6211\u4eec\u6709\u5173<\/span><a href=\"https:\/\/learn.microsoft.com\/en-us\/dotnet\/fundamentals\/networking\/telemetry\/metrics\"><span data-contrast=\"auto\">.NET <\/span><span data-contrast=\"none\">\u4e2d\u7684\u7f51\u7edc\u6307\u6807<\/span><\/a><span data-contrast=\"auto\">\u7684\u6559\u7a0b\u3002\u5b83\u5305\u62ec\u6709\u5173\u4f7f\u7528<\/span><span data-contrast=\"auto\"> Prometheus <\/span><span data-contrast=\"auto\">\u548c<\/span><span data-contrast=\"auto\"> Grafana <\/span><span data-contrast=\"auto\">\u8fdb\u884c\u6536\u96c6\u548c\u62a5\u544a\u7684\u793a\u4f8b\uff0c\u8fd8\u6f14\u793a\u4e86\u5982\u4f55\u4e30\u5bcc\u548c\u6d4b\u8bd5\u5185\u7f6e<\/span><span data-contrast=\"auto\"> HTTP <\/span><span data-contrast=\"auto\">\u6307\u6807\u3002\u6709\u5173\u5185\u7f6e\u5de5\u5177\u7684\u5b8c\u6574\u5217\u8868\uff0c\u8bf7\u53c2\u9605<\/span><a href=\"https:\/\/learn.microsoft.com\/en-us\/dotnet\/core\/diagnostics\/built-in-metrics-system-net\"><span data-contrast=\"auto\">System.Net <\/span><span data-contrast=\"none\">\u6307\u6807<\/span><\/a><span data-contrast=\"auto\">\u7684\u6587\u6863\u3002\u5982\u679c\u60a8\u5bf9\u670d\u52a1\u5668\u7aef\u66f4\u611f\u5174\u8da3\uff0c\u8bf7\u9605\u8bfb\u6709\u5173<\/span><a href=\"https:\/\/learn.microsoft.com\/en-us\/aspnet\/core\/log-mon\/metrics\/metrics?view=aspnetcore-8.0\"><span data-contrast=\"auto\">ASP.NET Core <\/span><span data-contrast=\"none\">\u6307\u6807<\/span><\/a><span data-contrast=\"auto\">\u7684\u6587\u6863\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<h3><b><span data-contrast=\"auto\">\u6269\u5c55\u9065\u6d4b<\/span><\/b><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/h3>\n<p><span data-contrast=\"auto\">\u9664\u4e86\u65b0\u6307\u6807\u4e4b\u5916\uff0c<\/span><a href=\"https:\/\/devblogs.microsoft.com\/dotnet\/net-5-new-networking-improvements\/#telemetry\"><span data-contrast=\"none\">.NET 5<\/span><\/a> <span data-contrast=\"auto\">\u4e2d\u5f15\u5165\u7684\u73b0\u6709\u57fa\u4e8e<\/span><span style=\"color: #ff0000;\" data-contrast=\"auto\"> EventSource <\/span><span data-contrast=\"auto\">\u7684\u9065\u6d4b\u4e8b\u4ef6\u8fd8\u589e\u52a0\u4e86\u6709\u5173<\/span><span data-contrast=\"auto\"> HTTP <\/span><span data-contrast=\"auto\">\u8fde\u63a5\u7684\u66f4\u591a\u4fe1\u606f<\/span><span data-contrast=\"auto\"> (<\/span><a href=\"https:\/\/github.com\/dotnet\/runtime\/pull\/88853\"><span data-contrast=\"auto\">dotnet\/runtime#<\/span><span data-contrast=\"none\">88853<\/span><\/a><span data-contrast=\"auto\">)\uff1a<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<pre class=\"prettyprint language-default\"><code class=\"language-default\">- ConnectionEstablished(byte versionMajor, byte versionMinor)\r\n+ ConnectionEstablished(byte versionMajor, byte versionMinor, long connectionId, string scheme, string host, int port, string? remoteAddress)\r\n\r\n- ConnectionClosed(byte versionMajor, byte versionMinor)\r\n+ ConnectionClosed(byte versionMajor, byte versionMinor, long connectionId)\r\n\r\n- RequestHeadersStart()\r\n+ RequestHeadersStart(long connectionId)<\/code><\/pre>\n<p><span data-contrast=\"auto\">\u73b0\u5728\uff0c\u5f53\u5efa\u7acb\u65b0\u8fde\u63a5\u65f6\uff0c\u8be5\u4e8b\u4ef6\u4f1a\u8bb0\u5f55<\/span><span data-contrast=\"auto\"><span style=\"color: #ff0000;\">connectionId<\/span> <\/span><span data-contrast=\"auto\">\u53ca\u5176\u65b9\u6848\u3001\u7aef\u53e3\u548c\u5bf9\u7b49<\/span><span data-contrast=\"auto\"> IP <\/span><span data-contrast=\"auto\">\u5730\u5740\u3002\u8fd9\u6837\u5c31\u80fd\u901a\u8fc7<\/span><span data-contrast=\"auto\"><span style=\"color: #ff0000;\"> RequestHeadersStart<\/span> <\/span><span data-contrast=\"auto\">\u4e8b\u4ef6\u5c06\u8bf7\u6c42\u548c\u54cd\u5e94\u4e0e\u8fde\u63a5\u5173\u8054\u8d77\u6765\uff08\u5f53\u8bf7\u6c42\u4e0e\u6c60\u8fde\u63a5\u5173\u8054\u5e76\u5f00\u59cb\u5904\u7406\u65f6\u53d1\u751f\u8be5\u4e8b\u4ef6\uff09\uff0c\u8be5\u4e8b\u4ef6\u8fd8\u8bb0\u5f55\u5173\u8054\u7684<\/span><span data-contrast=\"auto\"><span style=\"color: #ff0000;\"> ConnectionId<\/span>\u3002 <\/span><span data-contrast=\"auto\">\u8fd9\u5728\u7528\u6237\u5e0c\u671b\u67e5\u770b\u4e3a\u5176<\/span><span data-contrast=\"auto\"> HTTP <\/span><span data-contrast=\"auto\">\u8bf7\u6c42\u63d0\u4f9b\u670d\u52a1\u7684\u670d\u52a1\u5668\u7684<\/span><span data-contrast=\"auto\"> IP <\/span><span data-contrast=\"auto\">\u5730\u5740\u7684\u8bca\u65ad\u573a\u666f\u4e2d\u5c24\u5176\u6709\u4ef7\u503c\uff0c\u8fd9\u4e5f\u662f\u6dfb\u52a0\u6b64\u529f\u80fd\u7684\u4e3b\u8981\u52a8\u673a<\/span><span data-contrast=\"auto\"> (<\/span><a href=\"https:\/\/github.com\/dotnet\/runtime\/issues\/63159\"><span data-contrast=\"auto\">dotnet\/runtime#<\/span><span data-contrast=\"none\">63159<\/span><\/a><span data-contrast=\"auto\">)\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">\u4e8b\u4ef6\u53ef\u4ee5\u901a\u8fc7\u591a\u79cd\u65b9\u5f0f\u4f7f\u7528\uff0c\u8bf7\u53c2\u9605<\/span><a href=\"https:\/\/learn.microsoft.com\/en-us\/dotnet\/fundamentals\/networking\/telemetry\/events\"><span data-contrast=\"auto\">.NET <\/span><span data-contrast=\"auto\">\u4e2d\u7684\u7f51\u7edc\u9065\u6d4b<\/span><span data-contrast=\"auto\"> \u2013 <\/span><span data-contrast=\"none\">\u4e8b\u4ef6<\/span><\/a><span data-contrast=\"auto\">\u3002 <\/span><span data-contrast=\"auto\">\u4f46\u4e3a\u4e86\u5728\u8fdb\u7a0b\u5185\u589e\u5f3a\u65e5\u5fd7\u8bb0\u5f55\uff0c\u53ef\u4ee5\u4f7f\u7528\u81ea\u5b9a\u4e49<\/span> <a href=\"https:\/\/learn.microsoft.com\/en-us\/dotnet\/api\/system.diagnostics.tracing.eventlistener?view=net-8.0\"><span data-contrast=\"none\">EventListener<\/span><\/a> <span data-contrast=\"auto\">\u5c06\u8bf7\u6c42<\/span><span data-contrast=\"auto\">\/<\/span><span data-contrast=\"auto\">\u54cd\u5e94\u5bf9\u4e0e\u8fde\u63a5\u6570\u636e\u76f8\u5173\u8054<\/span><span data-contrast=\"auto\">\uff1a<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><code><\/code><\/p>\n<pre class=\"prettyprint language-default\"><code class=\"language-default\">using IPLoggingListener ipLoggingListener = new();\r\nusing HttpClient client = new();\r\n\r\n\/\/ Send requests in parallel.\r\nawait Parallel.ForAsync(0, 1000, async (i, ct) =&gt;\r\n{\r\n    \/\/ Initialize the async local so that it can be populated by \"RequestHeadersStart\" event handler.\r\n    RequestInfo info = RequestInfo.Current;\r\n    using var response = await client.GetAsync(\"https:\/\/testserver\");\r\n    Console.WriteLine($\"Response {response.StatusCode} handled by connection {info.ConnectionId}. Remote IP: {info.RemoteAddress}\");\r\n\r\n    \/\/ Process response...\r\n});\r\n\r\ninternal sealed class RequestInfo\r\n{\r\n    private static readonly AsyncLocal&lt;RequestInfo&gt; _asyncLocal = new();\r\n    public static RequestInfo Current =&gt; _asyncLocal.Value ??= new();\r\n\r\n    public string? RemoteAddress;\r\n    public long ConnectionId;\r\n}\r\n\r\ninternal sealed class IPLoggingListener : EventListener\r\n{\r\n    private static readonly ConcurrentDictionary&lt;long, string&gt; s_connection2Endpoint = new ConcurrentDictionary&lt;long, string&gt;();\r\n\r\n    \/\/ EventId corresponds to [Event(eventId)] attribute argument and the payload indices correspond to the event method argument order.\r\n\r\n    \/\/ See: https:\/\/github.com\/dotnet\/runtime\/blob\/a6e4834d53ac591a4b3d4a213a8928ad685f7ad8\/src\/libraries\/System.Net.Http\/src\/System\/Net\/Http\/HttpTelemetry.cs#L100-L101\r\n    private const int ConnectionEstablished_EventId = 4;\r\n    private const int ConnectionEstablished_ConnectionIdIndex = 2;\r\n    private const int ConnectionEstablished_RemoteAddressIndex = 6;\r\n\r\n    \/\/ See: https:\/\/github.com\/dotnet\/runtime\/blob\/a6e4834d53ac591a4b3d4a213a8928ad685f7ad8\/src\/libraries\/System.Net.Http\/src\/System\/Net\/Http\/HttpTelemetry.cs#L106-L107\r\n    private const int ConnectionClosed_EventId = 5;\r\n    private const int ConnectionClosed_ConnectionIdIndex = 2;\r\n\r\n    \/\/ See: https:\/\/github.com\/dotnet\/runtime\/blob\/a6e4834d53ac591a4b3d4a213a8928ad685f7ad8\/src\/libraries\/System.Net.Http\/src\/System\/Net\/Http\/HttpTelemetry.cs#L118-L119\r\n    private const int RequestHeadersStart_EventId = 7;\r\n    private const int RequestHeadersStart_ConnectionIdIndex = 0;\r\n\r\n    protected override void OnEventSourceCreated(EventSource eventSource)\r\n    {\r\n        if (eventSource.Name == \"System.Net.Http\")\r\n        {\r\n            EnableEvents(eventSource, EventLevel.LogAlways);\r\n        }\r\n    }\r\n\r\n    protected override void OnEventWritten(EventWrittenEventArgs eventData)\r\n    {\r\n        ReadOnlyCollection&lt;object?&gt;? payload = eventData.Payload;\r\n        if (payload == null) return;\r\n\r\n        switch (eventData.EventId)\r\n        {\r\n            case ConnectionEstablished_EventId:\r\n                \/\/ Remember the connection data.\r\n                long connectionId = (long)payload[ConnectionEstablished_ConnectionIdIndex]!;\r\n                string? remoteAddress = (string?)payload[ConnectionEstablished_RemoteAddressIndex];\r\n                if (remoteAddress != null)\r\n                {\r\n                    Console.WriteLine($\"Connection {connectionId} established to {remoteAddress}\");\r\n                    s_connection2Endpoint.TryAdd(connectionId, remoteAddress);\r\n                }\r\n                break;\r\n            case ConnectionClosed_EventId:\r\n                connectionId = (long)payload[ConnectionClosed_ConnectionIdIndex]!;\r\n                s_connection2Endpoint.TryRemove(connectionId, out _);\r\n                break;\r\n            case RequestHeadersStart_EventId:\r\n                \/\/ Populate the async local RequestInfo with data from \"ConnectionEstablished\" event.\r\n                connectionId = (long)payload[RequestHeadersStart_ConnectionIdIndex]!;\r\n                if (s_connection2Endpoint.TryGetValue(connectionId, out remoteAddress))\r\n                {\r\n                    RequestInfo.Current.RemoteAddress = remoteAddress;\r\n                    RequestInfo.Current.ConnectionId = connectionId;\r\n                }\r\n                break;\r\n        }\r\n    }\r\n}<\/code><\/pre>\n<p><span data-contrast=\"auto\">\u6b64\u5916\uff0c<\/span><span style=\"color: #ff0000;\" data-contrast=\"auto\">Redirect<\/span><span data-contrast=\"auto\">\u4e8b\u4ef6\u5df2\u6269\u5c55\u4e3a\u5305\u542b\u91cd\u5b9a\u5411<\/span><span data-contrast=\"auto\"> URI\uff1a<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<pre class=\"prettyprint language-default\"><code class=\"language-default\">-void Redirect();\r\n+void Redirect(string redirectUri);<\/code><\/pre>\n<p><code><\/code><code><\/code><\/p>\n<h3><b><span data-contrast=\"auto\">HTTP <\/span><\/b><b><span data-contrast=\"auto\">\u9519\u8bef\u4ee3\u7801<\/span><\/b><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/h3>\n<p><span data-contrast=\"auto\"><span style=\"color: #ff0000;\">HttpClient<\/span> <\/span><span data-contrast=\"auto\">\u5728\u8bca\u65ad\u65b9\u9762\u7684\u95ee\u9898\u4e4b\u4e00\u662f\uff0c\u5f53\u53d1\u751f\u5f02\u5e38\u65f6\uff0c\u5f88\u96be\u4ee5\u7f16\u7a0b\u65b9\u5f0f\u533a\u5206\u9519\u8bef\u7684\u786e\u5207\u6839\u672c\u539f\u56e0\u3002\u533a\u5206\u5b83\u4eec\u7684\u552f\u4e00\u65b9\u6cd5\u662f\u89e3\u6790\u6765\u81ea<\/span><a href=\"https:\/\/learn.microsoft.com\/en-us\/dotnet\/api\/system.net.http.httprequestexception?view=net-8.0\"><span data-contrast=\"auto\">HttpRequestException<\/span><span data-contrast=\"none\">\u7684<\/span><\/a><span data-contrast=\"auto\">\u5f02\u5e38\u6d88\u606f\u3002\u6b64\u5916\uff0c\u5176\u4ed6<\/span><span data-contrast=\"auto\">HTTP<\/span><span data-contrast=\"auto\">\u5b9e\u73b0<\/span><span data-contrast=\"auto\">\uff08<\/span><span data-contrast=\"auto\">\u5982\u5e26\u6709<\/span><a href=\"https:\/\/learn.microsoft.com\/en-us\/windows\/win32\/winhttp\/error-messages\"><span data-contrast=\"none\">ERROR_WINHTTP_*<\/span><\/a><span data-contrast=\"auto\">\u9519\u8bef\u7801\u7684<\/span><span data-contrast=\"auto\">WinHTTP\uff09<\/span><span data-contrast=\"auto\">\u4ee5\u6570\u5b57\u4ee3\u7801\u6216\u679a\u4e3e\u7684\u5f62\u5f0f\u63d0\u4f9b\u4e86\u6b64\u7c7b\u529f\u80fd\u3002\u6240\u4ee5<\/span><span data-contrast=\"auto\">.NET 8<\/span><span data-contrast=\"auto\">\u5f15\u5165\u4e86\u4e00\u4e2a\u7c7b\u4f3c\u7684\u679a\u4e3e\uff0c\u5e76\u5728<\/span><span data-contrast=\"auto\">HTTP<\/span><span data-contrast=\"auto\">\u5904\u7406\u629b\u51fa\u7684\u5f02\u5e38\u4e2d\u63d0\u4f9b\u4e86\u5b83\uff0c\u5b83\u4eec\u662f\uff1a<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<ul>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"15\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:860,&quot;335559991&quot;:440,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"1\" data-aria-level=\"1\"><a href=\"https:\/\/learn.microsoft.com\/en-us\/dotnet\/api\/system.net.http.httprequestexception?view=net-8.0\"><span data-contrast=\"none\">HttpRequestException<\/span><\/a><span data-contrast=\"auto\">\u7528\u4e8e\u63a5\u6536\u54cd\u5e94\u5934\u4e4b\u524d\u7684\u8bf7\u6c42\u5904\u7406\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/li>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"15\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:860,&quot;335559991&quot;:440,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"2\" data-aria-level=\"1\"><span data-contrast=\"auto\">\u8bfb\u53d6\u54cd\u5e94\u5185\u5bb9\u65f6\u629b\u51fa<\/span> <a href=\"https:\/\/learn.microsoft.com\/en-us\/dotnet\/api\/system.net.http.httpioexception?view=net-8.0\"><span data-contrast=\"none\">HttpIOException<\/span><\/a><span data-contrast=\"auto\">\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/li>\n<\/ul>\n<p><span data-contrast=\"auto\">\u5728<\/span><a href=\"https:\/\/github.com\/dotnet\/runtime\/issues\/76644\"><span data-contrast=\"none\">dotnet\/runtime#76644 API<\/span><\/a> <span data-contrast=\"auto\">\u63d0\u6848\u4e2d\u63cf\u8ff0\u4e86<\/span> <a href=\"https:\/\/learn.microsoft.com\/en-us\/dotnet\/api\/system.net.http.httprequesterror?view=net-8.0\"><span data-contrast=\"none\">HttpRequestError<\/span><\/a> <span data-contrast=\"auto\">\u679a\u4e3e\u7684\u8bbe\u8ba1\u4ee5\u53ca\u5982\u4f55\u5c06\u5176\u63d2\u5165<\/span><span data-contrast=\"auto\"> HTTP <\/span><span data-contrast=\"auto\">\u5f02\u5e38\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">\u73b0\u5728\uff0c<\/span><span style=\"color: #ff0000;\" data-contrast=\"auto\">HttpClient <\/span><span data-contrast=\"auto\">\u65b9\u6cd5\u7684\u4f7f\u7528\u8005\u53ef\u4ee5\u66f4\u5bb9\u6613\u3001\u66f4\u53ef\u9760\u5730\u5904\u7406\u7279\u5b9a\u7684\u5185\u90e8\u9519\u8bef<\/span>\uff1a\u00a0<code><\/code><\/p>\n<pre class=\"prettyprint language-default\"><code class=\"language-default\">using HttpClient httpClient = new();\r\n\r\n\/\/ Handling problems with the server:\r\ntry\r\n{\r\n    using HttpResponseMessage response = await httpClient.GetAsync(\"https:\/\/testserver\", HttpCompletionOption.ResponseHeadersRead);\r\n    using Stream responseStream = await response.Content.ReadAsStreamAsync();\r\n    \/\/ Process responseStream ...\r\n}\r\ncatch (HttpRequestException e) when (e.HttpRequestError == HttpRequestError.NameResolutionError)\r\n{\r\n    Console.WriteLine($\"Unknown host: {e}\");\r\n    \/\/ --&gt; Try different hostname.\r\n}\r\ncatch (HttpRequestException e) when (e.HttpRequestError == HttpRequestError.ConnectionError)\r\n{\r\n    Console.WriteLine($\"Server unreachable: {e}\");\r\n    \/\/ --&gt; Try different server.\r\n}\r\ncatch (HttpIOException e) when (e.HttpRequestError == HttpRequestError.InvalidResponse)\r\n{\r\n    Console.WriteLine($\"Mangled responses: {e}\");\r\n    \/\/ --&gt; Block list server.\r\n}\r\n\r\n\/\/ Handling problems with HTTP version selection:\r\ntry\r\n{\r\n    using HttpResponseMessage response = await httpClient.SendAsync(new HttpRequestMessage(HttpMethod.Get, \"https:\/\/testserver\")\r\n    {\r\n        Version = HttpVersion.Version20,\r\n        VersionPolicy = HttpVersionPolicy.RequestVersionExact\r\n    }, HttpCompletionOption.ResponseHeadersRead);\r\n    using Stream responseStream = await response.Content.ReadAsStreamAsync();\r\n    \/\/ Process responseStream ...\r\n}\r\ncatch (HttpRequestException e) when (e.HttpRequestError == HttpRequestError.VersionNegotiationError)\r\n{\r\n    Console.WriteLine($\"HTTP version is not supported: {e}\");\r\n    \/\/ Try with different HTTP version.\r\n}<\/code><\/pre>\n<h3><b><span data-contrast=\"auto\">HTTPS <\/span><\/b><b><span data-contrast=\"auto\">\u4ee3\u7406\u652f\u6301<\/span><\/b><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/h3>\n<p><span data-contrast=\"auto\">\u8fd9\u4e2a\u7248\u672c\u4e2d\u5b9e\u73b0\u7684\u6700\u53d7\u6b22\u8fce\u7684\u529f\u80fd\u4e4b\u4e00\u662f\u652f\u6301<\/span><span data-contrast=\"auto\"> HTTPS <\/span><span data-contrast=\"auto\">\u4ee3\u7406<\/span><span data-contrast=\"auto\"> (<\/span><a href=\"https:\/\/github.com\/dotnet\/runtime\/issues\/31113\"><span data-contrast=\"none\">dotnet\/runtime#31113<\/span><\/a><span data-contrast=\"auto\">)<\/span><span data-contrast=\"auto\">\u3002\u73b0\u5728\u53ef\u4ee5\u4f7f\u7528\u4ee3\u7406\u5904\u7406\u901a\u8fc7<\/span><span data-contrast=\"auto\"> HTTPS<\/span><span data-contrast=\"auto\">\u53d1\u9001\u7684\u8bf7\u6c42\uff0c\u8fd9\u610f\u5473\u7740\u4e0e\u4ee3\u7406\u7684\u8fde\u63a5\u662f\u5b89\u5168\u7684\u3002\u8fd9\u5e76\u6ca1\u6709\u6d89\u53ca\u6765\u81ea\u4ee3\u7406\u672c\u8eab\u7684\u8bf7\u6c42\uff0c\u5b83\u4ecd\u7136\u53ef\u4ee5\u662f<\/span><span data-contrast=\"auto\"> HTTP <\/span><span data-contrast=\"auto\">\u6216<\/span><span data-contrast=\"auto\"> HTTPS\u3002 <\/span><span data-contrast=\"auto\">\u5bf9\u4e8e\u7eaf\u6587\u672c<\/span><span data-contrast=\"auto\"> HTTP <\/span><span data-contrast=\"auto\">\u8bf7\u6c42\uff0c\u4e0e<\/span><span data-contrast=\"auto\"> HTTPS <\/span><span data-contrast=\"auto\">\u4ee3\u7406\u7684\u8fde\u63a5\u662f\u5b89\u5168\u7684\uff08\u901a\u8fc7<\/span><span data-contrast=\"auto\"> HTTPS<\/span><span data-contrast=\"auto\">\uff09\uff0c\u7136\u540e\u662f\u4ece\u4ee3\u7406\u5230\u76ee\u6807\u7684\u7eaf\u6587\u672c\u8bf7\u6c42\u3002\u5982\u679c\u662f<\/span><span data-contrast=\"auto\"> HTTPS <\/span><span data-contrast=\"auto\">\u8bf7\u6c42\uff08\u4ee3\u7406\u96a7\u9053\uff09\uff0c\u6253\u5f00\u96a7\u9053\u7684\u521d\u59cb<\/span><span data-contrast=\"auto\"><span style=\"color: #ff0000;\"> CONNECT<\/span> <\/span><span data-contrast=\"auto\">\u8bf7\u6c42\u5c06\u901a\u8fc7\u5b89\u5168\u901a\u9053<\/span><span data-contrast=\"auto\"> (HTTPS) <\/span><span data-contrast=\"auto\">\u53d1\u9001\u5230\u4ee3\u7406\uff0c\u7136\u540e\u662f\u4ece\u4ee3\u7406\u901a\u8fc7\u96a7\u9053\u5230\u76ee\u7684\u5730\u7684<\/span><span data-contrast=\"auto\"> HTTPS <\/span><span data-contrast=\"auto\">\u8bf7\u6c42<\/span><span data-contrast=\"auto\">\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">\u5982\u679c\u8981\u5229\u7528\u8be5\u529f\u80fd\uff0c\u53ea\u9700\u5728\u8bbe\u7f6e\u4ee3\u7406\u65f6\u4f7f\u7528<\/span><span data-contrast=\"auto\"> HTTPS <\/span><span data-contrast=\"auto\">\u65b9\u6848\u5373\u53ef<\/span><span data-contrast=\"auto\">\uff1a<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<pre class=\"prettyprint language-default\"><code class=\"language-default\">using HttpClient client = new HttpClient(new SocketsHttpHandler()\r\n{\r\n    Proxy = new WebProxy(\"https:\/\/proxy.address:12345\")\r\n});\r\n\r\nusing HttpResponseMessage response = await client.GetAsync(\"https:\/\/httpbin.org\/\");<\/code><\/pre>\n<h3><b><span data-contrast=\"auto\">HttpClientFactory<\/span><\/b><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/h3>\n<p><span data-contrast=\"auto\">.NET 8 <\/span><span data-contrast=\"auto\">\u6269\u5c55\u4e86\u914d\u7f6e<\/span> <a href=\"https:\/\/learn.microsoft.com\/en-us\/dotnet\/core\/extensions\/httpclient-factory\"><span data-contrast=\"none\">HttpClientFactory<\/span><\/a> <span data-contrast=\"auto\">\u7684\u65b9\u5f0f\uff0c\u5305\u62ec\u5ba2\u6237\u7aef\u9ed8\u8ba4\u8bbe\u7f6e\u3001\u81ea\u5b9a\u4e49\u65e5\u5fd7\u8bb0\u5f55\u548c\u7b80\u5316\u7684<\/span><span style=\"color: #ff0000;\" data-contrast=\"auto\"> SocketsHttpHandler <\/span><span data-contrast=\"auto\">\u914d\u7f6e\u3002<\/span> <span data-contrast=\"auto\">\u8fd9\u4e9b<\/span><span data-contrast=\"auto\"> API <\/span><span data-contrast=\"auto\">\u5728<\/span><span style=\"color: #ff0000;\" data-contrast=\"auto\"> Microsoft.Extensions.Http <\/span><span data-contrast=\"auto\">\u5305\u4e2d\u5b9e\u73b0\uff0c\u8be5\u5305\u53ef\u5728<\/span><span data-contrast=\"auto\"> NuGet <\/span><span data-contrast=\"auto\">\u4e0a\u83b7\u53d6\uff0c\u5e76\u5305\u542b\u5bf9<\/span><span data-contrast=\"auto\"> .NET Standard 2.0 <\/span><span data-contrast=\"auto\">\u7684\u652f\u6301\u3002\u56e0\u6b64\uff0c\u6b64\u529f\u80fd\u4e0d\u4ec5\u9002\u7528\u4e8e<\/span><span data-contrast=\"auto\"> .NET 8 <\/span><span data-contrast=\"auto\">\u4e0a\u7684\u5ba2\u6237\u7aef\uff0c\u800c\u4e14\u9002\u7528\u4e8e\u6240\u6709\u7248\u672c\u7684<\/span><span data-contrast=\"auto\"> .NET<\/span><span data-contrast=\"auto\">\uff0c\u5305\u62ec<\/span><span data-contrast=\"auto\"> .NET Framework<\/span><span data-contrast=\"auto\">\uff08\u552f\u4e00\u7684\u4f8b\u5916\u662f<\/span><span data-contrast=\"auto\"><span style=\"color: #ff0000;\">SocketsHttpHandler<\/span> <\/span><span data-contrast=\"auto\">\u76f8\u5173<\/span><span data-contrast=\"auto\"> API<\/span><span data-contrast=\"auto\">\uff0c\u4ec5\u5728<\/span><span data-contrast=\"auto\"> .NET 5+ <\/span><span data-contrast=\"auto\">\u4e2d\u53ef\u7528\uff09<\/span><span data-contrast=\"auto\">\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<h4><b><span data-contrast=\"auto\">\u4e3a\u6240\u6709\u5ba2\u6237\u7aef\u8bbe\u7f6e\u9ed8\u8ba4\u503c<\/span><\/b><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/h4>\n<p><span data-contrast=\"auto\">.NET 8 <\/span><span data-contrast=\"auto\">\u6dfb\u52a0\u4e86\u8bbe\u7f6e\u9ed8\u8ba4\u914d\u7f6e\u7684\u529f\u80fd\uff0c\u8be5\u914d\u7f6e\u5c06\u7528\u4e8e<\/span><span data-contrast=\"auto\"><span style=\"color: #ff0000;\"> HttpClientFactory<\/span> (<\/span><a href=\"https:\/\/github.com\/dotnet\/runtime\/issues\/87914\"><span data-contrast=\"none\">dotnet\/runtime#87914<\/span><\/a><span data-contrast=\"auto\">) <\/span><span data-contrast=\"auto\">\u521b\u5efa\u7684\u6240\u6709<\/span><span data-contrast=\"auto\"><span style=\"color: #ff0000;\"> HttpClient<\/span>\u3002 <\/span><span data-contrast=\"auto\">\u5f53\u6240\u6709\u6216\u5927\u591a\u6570\u6ce8\u518c\u5ba2\u6237\u7aef\u5305\u542b\u76f8\u540c\u7684\u914d\u7f6e\u5b50\u96c6\u65f6\uff0c\u8fd9\u975e\u5e38\u6709\u7528\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">\u8003\u8651\u4e00\u4e2a\u5b9a\u4e49\u4e86\u4e24\u4e2a\u547d\u540d\u5ba2\u6237\u7aef\u7684\u793a\u4f8b\uff0c\u5b83\u4eec\u90fd\u9700\u8981\u5728\u5176\u6d88\u606f\u5904\u7406\u7a0b\u5e8f\u94fe\u4e2d\u4f7f\u7528<\/span><span data-contrast=\"auto\"><span style=\"color: #ff0000;\">MyAuthHandler<\/span>\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<pre class=\"prettyprint language-default\"><code class=\"language-default\">services.AddHttpClient(\"consoto\", c =&gt; c.BaseAddress = new Uri(\"https:\/\/consoto.com\/\"))\r\n    .AddHttpMessageHandler&lt;MyAuthHandler&gt;();\r\n\r\nservices.AddHttpClient(\"github\", c =&gt; c.BaseAddress = new Uri(\"https:\/\/github.com\/\"))\r\n    .AddHttpMessageHandler&lt;MyAuthHandler&gt;();<\/code><\/pre>\n<p><span data-contrast=\"auto\">\u60a8\u73b0\u5728\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b<\/span><a href=\"https:\/\/learn.microsoft.com\/en-us\/dotnet\/api\/microsoft.extensions.dependencyinjection.httpclientfactoryservicecollectionextensions.configurehttpclientdefaults?view=dotnet-plat-ext-8.0\"><span data-contrast=\"auto\">ConfigureHttpClientDefaults<\/span><span data-contrast=\"none\">\u65b9\u6cd5<\/span><\/a><span data-contrast=\"auto\">\u63d0\u53d6\u516c\u5171\u90e8\u5206<\/span><span data-contrast=\"auto\">\uff1a<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<pre class=\"prettyprint language-default\"><code class=\"language-default\">services.ConfigureHttpClientDefaults(b =&gt; b.AddHttpMessageHandler&lt;MyAuthHandler&gt;());\r\n\r\n\/\/ both clients will have MyAuthHandler added by default\r\nservices.AddHttpClient(\"consoto\", c =&gt; c.BaseAddress = new Uri(\"https:\/\/consoto.com\/\"));\r\nservices.AddHttpClient(\"github\", c =&gt; c.BaseAddress = new Uri(\"https:\/\/github.com\/\"));<\/code><\/pre>\n<p><span data-contrast=\"auto\">\u6240\u6709\u4e0e<\/span><span data-contrast=\"auto\"><span style=\"color: #ff0000;\"> AddHttpClient<\/span> <\/span><span data-contrast=\"auto\">\u4e00\u8d77\u4f7f\u7528\u7684<\/span><a href=\"https:\/\/learn.microsoft.com\/en-us\/dotnet\/api\/microsoft.extensions.dependencyinjection.ihttpclientbuilder?view=dotnet-plat-ext-8.0\"><span data-contrast=\"none\">IHttpClientBuilder<\/span><\/a> <span data-contrast=\"auto\">\u6269\u5c55\u65b9\u6cd5\u4e5f\u53ef\u4ee5\u5728<\/span><span style=\"color: #ff0000;\" data-contrast=\"auto\"> ConfigureHttpClientDefaults <\/span><span data-contrast=\"auto\">\u4e2d\u4f7f\u7528\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">\u9ed8\u8ba4\u914d\u7f6e<\/span><span data-contrast=\"auto\"> (<span style=\"color: #ff0000;\">ConfigureHttpClientDefaults<\/span>) <\/span><span data-contrast=\"auto\">\u5728\u5ba2\u6237\u7aef\u7279\u5b9a<\/span><span data-contrast=\"auto\"> (<span style=\"color: #ff0000;\">AddHttpClient<\/span>) <\/span><span data-contrast=\"auto\">\u914d\u7f6e\u4e4b\u524d\u5e94\u7528\u4e8e\u6240\u6709\u5ba2\u6237\u7aef\uff1b<\/span> <span data-contrast=\"auto\">\u5b83\u4eec\u5728\u6ce8\u518c\u4e2d\u7684\u76f8\u5bf9\u4f4d\u7f6e\u5e76\u4e0d\u91cd\u8981\u3002<\/span><span style=\"color: #ff0000;\" data-contrast=\"auto\"> ConfigureHttpClientDefaults<\/span><span data-contrast=\"auto\">\u53ef\u4ee5\u6ce8\u518c\u591a\u6b21\uff0c\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u914d\u7f6e\u5c06\u6309\u7167\u6ce8\u518c\u7684\u987a\u5e8f\u4e00\u4e00\u5e94\u7528\u3002<\/span> <span data-contrast=\"auto\">\u914d\u7f6e\u7684\u4efb\u4f55\u90e8\u5206\u90fd\u53ef\u4ee5\u5728\u7279\u5b9a\u4e8e\u5ba2\u6237\u7aef\u7684\u914d\u7f6e\u4e2d\u88ab\u91cd\u5199\u6216\u4fee\u6539\uff0c\u4f8b\u5982\uff0c\u60a8\u53ef\u4ee5\u4e3a<\/span><span style=\"color: #ff0000;\" data-contrast=\"auto\"> HttpClient <\/span><span data-contrast=\"auto\">\u5bf9\u8c61\u6216\u4e3b\u5904\u7406\u7a0b\u5e8f\u8bbe\u7f6e\u989d\u5916\u7684\u8bbe\u7f6e\uff0c\u5220\u9664\u4ee5\u524d\u6dfb\u52a0\u7684\u989d\u5916\u5904\u7406\u7a0b\u5e8f\u7b49\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">\u8bf7\u6ce8\u610f\uff0c\u4ece<\/span><span data-contrast=\"auto\"> 8.0 <\/span><span data-contrast=\"auto\">\u5f00\u59cb\uff0c<\/span><a href=\"https:\/\/learn.microsoft.com\/en-us\/dotnet\/api\/microsoft.extensions.dependencyinjection.httpclientbuilderextensions.configurehttpmessagehandlerbuilder?view=dotnet-plat-ext-8.0\"><span data-contrast=\"none\">ConfigureHttpMessageHandlerBuilder<\/span><\/a> <span data-contrast=\"auto\">\u65b9\u6cd5\u5df2\u88ab\u5f03\u7528\u3002<\/span> <span data-contrast=\"auto\">\u60a8\u5e94\u8be5\u6539\u7528<\/span><a href=\"https:\/\/learn.microsoft.com\/en-us\/dotnet\/api\/microsoft.extensions.dependencyinjection.httpclientbuilderextensions.configureprimaryhttpmessagehandler?view=dotnet-plat-ext-8.0#microsoft-extensions-dependencyinjection-httpclientbuilderextensions-configureprimaryhttpmessagehandler(microsoft-extensions-dependencyinjection-ihttpclientbuilder-system-action((system-net-http-httpmessagehandler-system-iserviceprovider)\"><span data-contrast=\"auto\">ConfigurePrimaryHttpMessageHandler(Action&lt;HttpMessageHandler,IServiceProvider<\/span><span data-contrast=\"none\">&gt;)))<\/span><\/a> <span data-contrast=\"auto\">\u6216<\/span><a href=\"https:\/\/learn.microsoft.com\/en-us\/dotnet\/api\/microsoft.extensions.dependencyinjection.httpclientbuilderextensions.configureadditionalhttpmessagehandlers?view=dotnet-plat-ext-8.0\"><span data-contrast=\"none\">ConfigureAdditionalHttpMessageHandlers<\/span><\/a> <span data-contrast=\"auto\">\u65b9\u6cd5\uff0c\u9700\u8981\u5206\u522b\u4fee\u6539\u5148\u524d\u914d\u7f6e\u7684\u4e3b\u5904\u7406\u7a0b\u5e8f\u6216\u9644\u52a0\u5904\u7406\u7a0b\u5e8f\u5217\u8868<\/span><span data-contrast=\"auto\">\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<pre class=\"prettyprint language-default\"><code class=\"language-default\">\/\/ by default, adds User-Agent header, uses HttpClientHandler with UseCookies=false\r\n\/\/ as a primary handler, and adds MyAuthHandler to all clients\r\nservices.ConfigureHttpClientDefaults(b =&gt;\r\n    b.ConfigureHttpClient(c =&gt; c.DefaultRequestHeaders.UserAgent.ParseAdd(\"HttpClient\/8.0\"))\r\n     .ConfigurePrimaryHttpMessageHandler(() =&gt; new HttpClientHandler() { UseCookies = false })\r\n     .AddHttpMessageHandler&lt;MyAuthHandler&gt;());\r\n\r\n\/\/ HttpClient will have both User-Agent (from defaults) and BaseAddress set\r\n\/\/ + client will have UseCookies=false and MyAuthHandler from defaults\r\nservices.AddHttpClient(\"modify-http-client\", c =&gt; c.BaseAddress = new Uri(\"https:\/\/httpbin.org\/\"))\r\n\r\n\/\/ primary handler will have both UseCookies=false (from defaults) and MaxConnectionsPerServer set\r\n\/\/ + client will have User-Agent and MyAuthHandler from defaults\r\nservices.AddHttpClient(\"modify-primary-handler\")\r\n    .ConfigurePrimaryHandler((h, _) =&gt; ((HttpClientHandler)h).MaxConnectionsPerServer = 1);\r\n\r\n\/\/ MyWrappingHandler will be inserted at the top of the handlers chain\r\n\/\/ + client will have User-Agent, UseCookies=false and MyAuthHandler from defaults\r\nservices.AddHttpClient(\"insert-handler-into-chain\"))\r\n    .ConfigureAdditionalHttpMessageHandlers((handlers, _) =&gt;\r\n        handlers.Insert(0, new MyWrappingHandler());\r\n\r\n\/\/ MyAuthHandler (initially from defaults) will be removed from the handler chain\r\n\/\/ + client will still have User-Agent and UseCookies=false from defaults\r\nservices.AddHttpClient(\"remove-handler-from-chain\"))\r\n    .ConfigureAdditionalHttpMessageHandlers((handlers, _) =&gt;\r\n        handlers.Remove(handlers.Single(h =&gt; h is MyAuthHandler)));<\/code><\/pre>\n<h3><b><span data-contrast=\"auto\">\u4fee\u6539<\/span><\/b><b><span data-contrast=\"auto\"> HttpClient <\/span><\/b><b><span data-contrast=\"auto\">\u65e5\u5fd7\u8bb0\u5f55<\/span><\/b><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/h3>\n<p><span data-contrast=\"auto\">\u81ea\u5b9a\u4e49\uff08\u6216\u8005\u5e72\u8106\u5173\u95ed\uff09<\/span><span style=\"color: #ff0000;\" data-contrast=\"auto\">HttpClientFactory<\/span><span data-contrast=\"auto\">\u65e5\u5fd7\u8bb0\u5f55\u662f\u957f\u671f\u8bf7\u6c42\u7684\u529f\u80fd\u4e4b\u4e00\uff08<\/span><a href=\"https:\/\/github.com\/dotnet\/runtime\/issues\/77312\"><span data-contrast=\"none\">dotnet\/runtime#77312<\/span><\/a><span data-contrast=\"auto\">\uff09\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<h4><b><span data-contrast=\"auto\">\u65e7\u65e5\u5fd7\u8bb0\u5f55\u6982\u8ff0<\/span><\/b><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/h4>\n<p><span style=\"color: #ff0000;\" data-contrast=\"auto\">HttpClientFactory <\/span><span data-contrast=\"auto\">\u6dfb\u52a0\u7684\u9ed8\u8ba4\uff08\u201c\u65e7\u201d\uff09\u65e5\u5fd7\u8bb0\u5f55\u975e\u5e38\u5197\u957f\uff0c\u6bcf\u4e2a\u8bf7\u6c42\u53d1\u51fa<\/span><span data-contrast=\"auto\"> 8 <\/span><span data-contrast=\"auto\">\u6761\u65e5\u5fd7\u6d88\u606f\uff1a<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<ol>\n<li><em>\u4f7f\u7528\u8bf7\u6c42 URI \u542f\u52a8\u901a\u77e5 \u2014\u2014 \u5728\u901a\u8fc7\u59d4\u6258\u5904\u7406\u7a0b\u5e8f\u7ba1\u9053\u4f20\u64ad\u4e4b\u524d\uff1b\u00a0<\/em><\/li>\n<li><em>\u8bf7\u6c42\u6807\u5934 \u2014\u2014 \u5728\u5904\u7406\u7a0b\u5e8f\u7ba1\u9053\u4e4b\u524d\uff1b\u00a0<\/em><\/li>\n<li><em>\u4f7f\u7528\u8bf7\u6c42 URI \u542f\u52a8\u901a\u77e5 \u2014\u2014 \u5728\u5904\u7406\u7a0b\u5e8f\u7ba1\u9053\u4e4b\u540e\uff1b\u00a0<\/em><\/li>\n<li><em>\u8bf7\u6c42\u6807\u5934 \u2014\u2014 \u5904\u7406\u7a0b\u5e8f\u7ba1\u9053\u4e4b\u540e\uff1b\u00a0<\/em><\/li>\n<li><em>\u968f\u7740\u65f6\u95f4\u7684\u6d41\u901d\u505c\u6b62\u901a\u77e5 \u2014\u2014 \u5728\u901a\u8fc7\u59d4\u6258\u5904\u7406\u7a0b\u5e8f\u7ba1\u9053\u4f20\u64ad\u56de\u54cd\u5e94\u4e4b\u524d\uff0c\uff1b\u00a0<\/em><\/li>\n<li><em>\u54cd\u5e94\u6807\u5934 \u2014\u2014 \u5728\u4f20\u64ad\u56de\u54cd\u5e94\u4e4b\u524d\uff1b\u00a0<\/em><\/li>\n<li><em>\u968f\u7740\u65f6\u95f4\u7684\u6d41\u901d\u505c\u6b62\u901a\u77e5 \u2014\u2014 \u5728\u4f20\u64ad\u56de\u54cd\u5e94\u4e4b\u540e\uff1b\u00a0<\/em><\/li>\n<li><em>\u54cd\u5e94\u6807\u5934 \u2014\u2014 \u5c06\u54cd\u5e94\u4f20\u64ad\u56de\u6765\u4e4b\u540e\u3002\u00a0<\/em><\/li>\n<\/ol>\n<p><span data-contrast=\"auto\">\u8fd9\u53ef\u4ee5\u7528\u4e0b\u9762\u7684\u56fe\u6765\u8bf4\u660e\u3002\u5728\u4e0b\u56fe\u4e2d\uff0c<\/span><span style=\"color: #ff0000;\" data-contrast=\"auto\">* <\/span><span data-contrast=\"auto\">\u548c<\/span><span data-contrast=\"auto\"><span style=\"color: #ff0000;\"> [&#8230;]<\/span> <\/span><span data-contrast=\"auto\">\u8868\u793a\u65e5\u5fd7\u8bb0\u5f55\u4e8b\u4ef6\uff08\u5728\u9ed8\u8ba4\u5b9e\u73b0\u4e2d\uff0c\u65e5\u5fd7\u6d88\u606f\u88ab\u5199\u5165<\/span><span data-contrast=\"auto\"><span style=\"color: #ff0000;\"> ILogger<\/span>\uff09\uff0c<span style=\"color: #ff0000;\">&#8211;&gt;<\/span> <\/span><span data-contrast=\"auto\">\u8868\u793a\u901a\u8fc7\u5e94\u7528\u7a0b\u5e8f\u5c42\u548c\u4f20\u8f93\u5c42\u7684\u6570\u636e\u6d41<\/span><span data-contrast=\"auto\">\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<pre class=\"prettyprint language-default\"><code class=\"language-default\">  Request --&gt;\r\n*   [Start notification]    \/\/ \"Start processing HTTP request ...\" (1)\r\n*   [Request headers]       \/\/ \"Request Headers: ...\" (2)\r\n      --&gt; Additional Handler #1 --&gt;\r\n        --&gt; .... --&gt;\r\n          --&gt; Additional Handler #N --&gt;\r\n*           [Start notification]    \/\/ \"Sending HTTP request ...\" (3)\r\n*           [Request headers]       \/\/ \"Request Headers: ...\" (4)\r\n                --&gt; Primary Handler --&gt;\r\n                      --------Transport--layer-------&gt;\r\n                                          \/\/ Server sends response\r\n                      &lt;-------Transport--layer--------\r\n                &lt;-- Primary Handler &lt;--\r\n*           [Stop notification]    \/\/ \"Received HTTP response ...\" (5)\r\n*           [Response headers]     \/\/ \"Response Headers: ...\" (6)\r\n          &lt;-- Additional Handler #N &lt;--\r\n        &lt;-- .... &lt;--\r\n      &lt;-- Additional Handler #1 &lt;--\r\n*   [Stop notification]    \/\/ \"End processing HTTP request ...\" (7)\r\n*   [Response headers]     \/\/ \"Response Headers: ...\" (8)\r\n  Response &lt;--<\/code><\/pre>\n<p><span data-contrast=\"auto\">\u9ed8\u8ba4<\/span><span data-contrast=\"auto\"><span style=\"color: #ff0000;\"> HttpClientFactory<\/span> <\/span><span data-contrast=\"auto\">\u65e5\u5fd7\u8bb0\u5f55\u7684\u63a7\u5236\u53f0\u8f93\u51fa\u5982\u4e0b\u6240\u793a\uff1a<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<pre class=\"prettyprint language-default\"><code class=\"language-default\">var client = _httpClientFactory.CreateClient();\r\nawait client.GetAsync(\"https:\/\/httpbin.org\/get\");<\/code><\/pre>\n<pre class=\"prettyprint language-default\"><code class=\"language-default\">info: System.Net.Http.HttpClient.test.LogicalHandler[100]\r\n      Start processing HTTP request GET https:\/\/httpbin.org\/get\r\ntrce: System.Net.Http.HttpClient.test.LogicalHandler[102]\r\n      Request Headers:\r\n      ....\r\ninfo: System.Net.Http.HttpClient.test.ClientHandler[100]\r\n      Sending HTTP request GET https:\/\/httpbin.org\/get\r\ntrce: System.Net.Http.HttpClient.test.ClientHandler[102]\r\n      Request Headers:\r\n      ....\r\ninfo: System.Net.Http.HttpClient.test.ClientHandler[101]\r\n      Received HTTP response headers after 581.2898ms - 200\r\ntrce: System.Net.Http.HttpClient.test.ClientHandler[103]\r\n      Response Headers:\r\n      ....\r\ninfo: System.Net.Http.HttpClient.test.LogicalHandler[101]\r\n      End processing HTTP request after 618.9736ms - 200\r\ntrce: System.Net.Http.HttpClient.test.LogicalHandler[103]\r\n      Response Headers:\r\n      ....<\/code><\/pre>\n<p><span data-contrast=\"auto\">\u8bf7\u6ce8\u610f\uff0c\u4e3a\u4e86\u67e5\u770b\u8ddf\u8e2a\u7ea7\u522b\u6d88\u606f\uff0c\u60a8\u9700\u8981\u5728\u5168\u5c40\u65e5\u5fd7\u8bb0\u5f55\u914d\u7f6e\u6587\u4ef6\u4e2d\u9009\u62e9\u6b64\u9009\u9879\u6216\u901a\u8fc7<\/span> <a href=\"https:\/\/learn.microsoft.com\/en-us\/dotnet\/api\/microsoft.extensions.logging.loggingbuilderextensions.setminimumlevel?view=dotnet-plat-ext-8.0\"><span data-contrast=\"auto\">SetMinimumLevel(LogLevel.Trace<\/span><span data-contrast=\"none\">)<\/span><\/a><span data-contrast=\"auto\">\u8fdb\u884c\u8bbe\u7f6e<\/span><span data-contrast=\"auto\"> \u3002 <\/span><span data-contrast=\"auto\">\u4f46\u5373\u4f7f\u53ea\u8003\u8651\u4fe1\u606f\u7ea7\u522b\u7684\u6d88\u606f\uff0c<\/span><span data-contrast=\"auto\">\u201c<\/span><span data-contrast=\"auto\">\u65e7<\/span><span data-contrast=\"auto\">\u201d<\/span><span data-contrast=\"auto\">\u65e5\u5fd7\u8bb0\u5f55\u6bcf\u4e2a\u8bf7\u6c42\u4ecd\u7136\u6709<\/span><span data-contrast=\"auto\"> 4 <\/span><span data-contrast=\"auto\">\u6761\u6d88\u606f\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">\u8981\u5220\u9664\u9ed8\u8ba4\uff08\u6216\u4e4b\u524d\u6dfb\u52a0\u7684\uff09\u65e5\u5fd7\u8bb0\u5f55\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u65b0\u7684<\/span><a href=\"https:\/\/learn.microsoft.com\/en-us\/dotnet\/api\/microsoft.extensions.dependencyinjection.httpclientbuilderextensions.removeallloggers?view=dotnet-plat-ext-8.0\"><span data-contrast=\"auto\">RemoveAllLoggers<\/span><span data-contrast=\"none\">()<\/span><\/a> <span data-contrast=\"auto\">\u6269\u5c55\u65b9\u6cd5\u3002<\/span> <span data-contrast=\"auto\">\u5b83\u4e0e\u4e0a\u9762<\/span><span data-contrast=\"auto\">\u201c<\/span><a href=\"https:\/\/devblogs.microsoft.com\/dotnet\/dotnet-8-networking-improvements\/#set-up-defaults-for-all-clients\"><span data-contrast=\"none\">\u4e3a\u6240\u6709\u5ba2\u6237\u7aef\u8bbe\u7f6e\u9ed8\u8ba4\u503c<\/span><\/a><span data-contrast=\"auto\">\u201d<\/span><span data-contrast=\"auto\">\u90e8\u5206\u4e2d\u63cf\u8ff0\u7684<\/span><span data-contrast=\"auto\"><span style=\"color: #ff0000;\">ConfigureHttpClientDefaults<\/span> API <\/span><span data-contrast=\"auto\">\u7ed3\u5408\u8d77\u6765\u7279\u522b\u5f3a\u5927\u3002\u8fd9\u6837\uff0c\u60a8\u5c31\u53ef\u4ee5\u5728\u4e00\u884c\u4e2d\u5220\u9664\u6240\u6709\u5ba2\u6237\u7aef\u7684<\/span><span data-contrast=\"auto\">\u201c<\/span><span data-contrast=\"auto\">\u65e7<\/span><span data-contrast=\"auto\">\u201d<\/span><span data-contrast=\"auto\">\u65e5\u5fd7\u8bb0\u5f55<\/span><span data-contrast=\"auto\">\uff1a<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<pre class=\"prettyprint language-default\"><code class=\"language-default\">services.ConfigureHttpClientDefaults(b =&gt; b.RemoveAllLoggers()); \/\/ remove HttpClientFactory default logging for all clients<\/code><\/pre>\n<p><span data-contrast=\"auto\">\u5982\u679c\u60a8\u9700\u8981\u6062\u590d<\/span><span data-contrast=\"auto\">\u201c<\/span><span data-contrast=\"auto\">\u65e7<\/span><span data-contrast=\"auto\">\u201d<\/span><span data-contrast=\"auto\">\u65e5\u5fd7\u8bb0\u5f55\uff0c\u4f8b\u5982<\/span> <span data-contrast=\"auto\">\u9488\u5bf9\u7279\u5b9a\u5ba2\u6237\u7aef\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528<\/span> <a href=\"https:\/\/learn.microsoft.com\/en-us\/dotnet\/api\/microsoft.extensions.dependencyinjection.httpclientbuilderextensions.adddefaultlogger?view=dotnet-plat-ext-8.0\"><span data-contrast=\"auto\">AddDefaultLogger<\/span><span data-contrast=\"none\">()<\/span><\/a> <span data-contrast=\"auto\">\u6765\u6267\u884c\u6b64\u64cd\u4f5c\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<h4><b><span data-contrast=\"auto\">\u6dfb\u52a0\u81ea\u5b9a\u4e49\u65e5\u5fd7\u8bb0\u5f55<\/span><\/b><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/h4>\n<p><span data-contrast=\"auto\">\u9664\u4e86\u80fd\u591f\u5220\u9664\u201c\u65e7\u201d\u65e5\u5fd7\u8bb0\u5f55\u4e4b\u5916\uff0c\u65b0\u7684<\/span><span data-contrast=\"auto\"><span style=\"color: #ff0000;\"> HttpClientFactory<\/span> API <\/span><span data-contrast=\"auto\">\u8fd8\u5141\u8bb8\u60a8\u5b8c\u5168\u81ea\u5b9a\u4e49\u65e5\u5fd7\u8bb0\u5f55\u3002<\/span> <span data-contrast=\"auto\">\u60a8\u53ef\u4ee5\u6307\u5b9a\u5f53<\/span><span style=\"color: #ff0000;\" data-contrast=\"auto\"> HttpClient <\/span><span data-contrast=\"auto\">\u542f\u52a8\u8bf7\u6c42\u3001\u63a5\u6536\u54cd\u5e94\u6216\u5f15\u53d1\u5f02\u5e38\u65f6\u8bb0\u5f55\u7684\u5185\u5bb9\u548c\u65b9\u5f0f\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">\u60a8\u53ef\u4ee5\u540c\u65f6\u6dfb\u52a0\u591a\u4e2a\u81ea\u5b9a\u4e49\u8bb0\u5f55\u5668<\/span><span data-contrast=\"auto\"> &#8211; <\/span><span data-contrast=\"auto\">\u4f8b\u5982\uff0c\u63a7\u5236\u53f0\u548c<\/span><span data-contrast=\"auto\"> ETW <\/span><span data-contrast=\"auto\">\u8bb0\u5f55\u5668\uff0c\u6216<\/span><a href=\"https:\/\/devblogs.microsoft.com\/dotnet\/dotnet-8-networking-improvements\/#wrapping-and-not-wrapping-loggers\"><span data-contrast=\"none\">\u201c<\/span><span data-contrast=\"none\">\u5305\u88c5<\/span><span data-contrast=\"none\">\u201d<\/span><span data-contrast=\"none\">\u548c<\/span><span data-contrast=\"none\">\u201c<\/span><span data-contrast=\"none\">\u4e0d\u5305\u88c5<\/span><span data-contrast=\"none\">\u201d<\/span><span data-contrast=\"none\">\u8bb0\u5f55\u5668<\/span><\/a><span data-contrast=\"auto\">\u3002 <\/span><span data-contrast=\"auto\">\u7531\u4e8e\u5176\u9644\u52a0\u6027\u8d28\uff0c\u60a8\u53ef\u80fd\u9700\u8981\u4e8b\u5148\u663e\u5f0f\u5220\u9664\u9ed8\u8ba4\u7684<\/span><span data-contrast=\"auto\">\u201c<\/span><span data-contrast=\"auto\">\u65e7<\/span><span data-contrast=\"auto\">\u201d<\/span><span data-contrast=\"auto\">\u65e5\u5fd7\u8bb0\u5f55\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">\u5982\u679c\u8981\u6dfb\u52a0\u81ea\u5b9a\u4e49\u65e5\u5fd7\u8bb0\u5f55\uff0c\u60a8\u9700\u8981\u5b9e\u73b0<\/span> <a href=\"https:\/\/learn.microsoft.com\/en-us\/dotnet\/api\/microsoft.extensions.http.logging.ihttpclientlogger?view=dotnet-plat-ext-8.0\"><span data-contrast=\"none\">IHttpClientLogger<\/span><\/a> <span data-contrast=\"auto\">\u63a5\u53e3\uff0c\u7136\u540e\u4f7f\u7528<\/span> <a href=\"https:\/\/learn.microsoft.com\/en-us\/dotnet\/api\/microsoft.extensions.dependencyinjection.httpclientbuilderextensions.addlogger?view=dotnet-plat-ext-8.0\"><span data-contrast=\"none\">AddLogger<\/span><\/a> <span data-contrast=\"auto\">\u5c06\u81ea\u5b9a\u4e49\u8bb0\u5f55\u5668\u6dfb\u52a0\u5230\u5ba2\u6237\u7aef\u3002\u8bf7\u6ce8\u610f\uff0c\u65e5\u5fd7\u8bb0\u5f55\u5b9e\u73b0\u4e0d\u5e94\u5f15\u53d1\u4efb\u4f55\u5f02\u5e38\uff0c\u5426\u5219\u53ef\u80fd\u4f1a\u4e2d\u65ad\u8bf7\u6c42\u6267\u884c\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">\u6ce8\u518c<\/span><span data-contrast=\"auto\">\uff1a<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<pre class=\"prettyprint language-default\"><code class=\"language-default\">services.AddSingleton&lt;SimpleConsoleLogger&gt;(); \/\/ register the logger in DI\r\n\r\nservices.AddHttpClient(\"foo\") \/\/ add a client\r\n    .RemoveAllLoggers() \/\/ remove previous logging\r\n    .AddLogger&lt;SimpleConsoleLogger&gt;(); \/\/ add the custom logger<\/code><\/pre>\n<p><span data-contrast=\"auto\">\u793a\u4f8b\u8bb0\u5f55\u5668\u5b9e\u73b0\uff1a<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<pre class=\"prettyprint language-default\"><code class=\"language-default\">services.AddSingleton&lt;SimpleConsoleLogger&gt;(); \/\/ register the logger in DI\r\n\r\nservices.AddHttpClient(\"foo\") \/\/ add a client\r\n    .RemoveAllLoggers() \/\/ remove previous logging\r\n    .AddLogger&lt;SimpleConsoleLogger&gt;(); \/\/ add the custom logger<\/code><\/pre>\n<p><span data-contrast=\"auto\">\u793a\u4f8b\u8f93\u51fa\uff1a<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<pre class=\"prettyprint language-default\"><code class=\"language-default\">var client = _httpClientFactory.CreateClient(\"foo\");\r\nawait client.GetAsync(\"https:\/\/httpbin.org\/get\");\r\nawait client.PostAsync(\"https:\/\/httpbin.org\/post\", new ByteArrayContent(new byte[] { 42 }));\r\nawait client.GetAsync(\"http:\/\/httpbin.org\/status\/500\");\r\nawait client.GetAsync(\"http:\/\/localhost:1234\");<\/code><\/pre>\n<pre class=\"prettyprint language-default\"><code class=\"language-default\">GET https:\/\/httpbin.org\/get - 200 OK in 393.2039ms\r\nPOST https:\/\/httpbin.org\/post - 200 OK in 95.524ms\r\nGET https:\/\/httpbin.org\/status\/500 - 500 InternalServerError in 99.5025ms\r\nGET http:\/\/localhost:1234\/ - Exception System.Net.Http.HttpRequestException: No connection could be made because the target machine actively refused it. (localhost:1234)<\/code><\/pre>\n<h4><b><span data-contrast=\"auto\">\u8bf7\u6c42\u4e0a\u4e0b\u6587\u5bf9\u8c61<\/span><\/b><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/h4>\n<p><span data-contrast=\"auto\">\u60a8\u53ef\u4ee5\u4f7f\u7528\u4e0a\u4e0b\u6587\u5bf9\u8c61\u6765\u5339\u914d<\/span><a href=\"https:\/\/learn.microsoft.com\/en-us\/dotnet\/api\/microsoft.extensions.http.logging.ihttpclientlogger.logrequeststart?view=dotnet-plat-ext-8.0\"><span data-contrast=\"none\">LogRequestStart<\/span><\/a><span data-contrast=\"auto\">\u8c03\u7528\u548c\u76f8\u5e94\u7684<a href=\"https:\/\/learn.microsoft.com\/en-us\/dotnet\/api\/microsoft.extensions.http.logging.ihttpclientlogger.logrequeststop?view=dotnet-plat-ext-8.0\">LogRequestStop<\/a><\/span><span data-contrast=\"auto\">\u8c03\u7528\uff0c\u4ece\u800c\u5c06\u6570\u636e\u4ece\u4e00\u4e2a\u8c03\u7528\u4f20\u9012\u5230\u53e6\u4e00\u4e2a\u8c03\u7528\u3002\u4e0a\u4e0b\u6587\u5bf9\u8c61\u7531<\/span><span style=\"color: #ff0000;\" data-contrast=\"auto\">LogRequestStart<\/span><span data-contrast=\"auto\">\u4ea7\u751f\uff0c\u7136\u540e\u4f20\u9012\u56de<span style=\"color: #ff0000;\">LogRequestStop<\/span><\/span><span data-contrast=\"auto\">\u3002\u8fd9\u53ef\u4ee5\u662f\u4e00\u4e2a\u5c5e\u6027\u5305\u6216\u4efb\u4f55\u5176\u4ed6\u4fdd\u5b58\u5fc5\u8981\u6570\u636e\u7684\u5bf9\u8c61<\/span><span data-contrast=\"auto\">\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">\u5982\u679c\u4e0d\u9700\u8981\u4e0a\u4e0b\u6587\u5bf9\u8c61\uff0c\u5b9e\u73b0\u53ef\u4ee5\u4ece<\/span><span style=\"color: #ff0000;\" data-contrast=\"auto\"> LogRequestStart <\/span><span data-contrast=\"auto\">\u8fd4\u56de<\/span><span data-contrast=\"auto\"><span style=\"color: #ff0000;\"> null<\/span>\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">\u4ee5\u4e0b\u793a\u4f8b\u663e\u793a\u4e86\u5982\u4f55\u4f7f\u7528\u4e0a\u4e0b\u6587\u5bf9\u8c61\u6765\u4f20\u9012\u81ea\u5b9a\u4e49\u8bf7\u6c42\u6807\u8bc6\u7b26<\/span><span data-contrast=\"auto\">\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<pre class=\"prettyprint language-default\"><code class=\"language-default\">public class RequestIdLogger : IHttpClientLogger\r\n{\r\n    private readonly ILogger _log;\r\n\r\n    public RequestIdLogger(ILogger&lt;RequestIdLogger&gt; log)\r\n    {\r\n        _log = log;\r\n    }\r\n\r\n    private static readonly Action&lt;ILogger, Guid, string?, Exception?&gt; _requestStart =\r\n        LoggerMessage.Define&lt;Guid, string?&gt;(\r\n            LogLevel.Information,\r\n            EventIds.RequestStart,\r\n            \"Request Id={RequestId} ({Host}) started\");\r\n\r\n    private static readonly Action&lt;ILogger, Guid, double, Exception?&gt; _requestStop =\r\n        LoggerMessage.Define&lt;Guid, double&gt;(\r\n            LogLevel.Information,\r\n            EventIds.RequestStop,\r\n            \"Request Id={RequestId} succeeded in {elapsed}ms\");\r\n\r\n    private static readonly Action&lt;ILogger, Guid, Exception?&gt; _requestFailed =\r\n        LoggerMessage.Define&lt;Guid&gt;(\r\n            LogLevel.Error,\r\n            EventIds.RequestFailed,\r\n            \"Request Id={RequestId} FAILED\");\r\n\r\n    public object? LogRequestStart(HttpRequestMessage request)\r\n    {\r\n        var ctx = new Context(Guid.NewGuid());\r\n        _requestStart(_log, ctx.RequestId, request.RequestUri?.Host, null);\r\n        return ctx;\r\n    }\r\n\r\n    public void LogRequestStop(object? ctx, HttpRequestMessage request, HttpResponseMessage response, TimeSpan elapsed)\r\n        =&gt; _requestStop(_log, ((Context)ctx!).RequestId, elapsed.TotalMilliseconds, null);\r\n\r\n    public void LogRequestFailed(object? ctx, HttpRequestMessage request, HttpResponseMessage? response, Exception e, TimeSpan elapsed)\r\n        =&gt; _requestFailed(_log, ((Context)ctx!).RequestId, null);\r\n\r\n    public static class EventIds\r\n    {\r\n        public static readonly EventId RequestStart = new(1, \"RequestStart\");\r\n        public static readonly EventId RequestStop = new(2, \"RequestStop\");\r\n        public static readonly EventId RequestFailed = new(3, \"RequestFailed\");\r\n    }\r\n\r\n    record Context(Guid RequestId);\r\n}<\/code><\/pre>\n<pre class=\"prettyprint language-default\"><code class=\"language-default\">info: RequestIdLogger[1]\r\n      Request Id=d0d63b84-cd67-4d21-ae9a-b63d26dfde50 (httpbin.org) started\r\ninfo: RequestIdLogger[2]\r\n      Request Id=d0d63b84-cd67-4d21-ae9a-b63d26dfde50 succeeded in 530.1664ms\r\ninfo: RequestIdLogger[1]\r\n      Request Id=09403213-dd3a-4101-88e8-db8ab19e1eeb (httpbin.org) started\r\ninfo: RequestIdLogger[2]\r\n      Request Id=09403213-dd3a-4101-88e8-db8ab19e1eeb succeeded in 83.2484ms\r\ninfo: RequestIdLogger[1]\r\n      Request Id=254e49bd-f640-4c56-b62f-5de678eca129 (httpbin.org) started\r\ninfo: RequestIdLogger[2]\r\n      Request Id=254e49bd-f640-4c56-b62f-5de678eca129 succeeded in 162.7776ms\r\ninfo: RequestIdLogger[1]\r\n      Request Id=e25ccb08-b97e-400d-b42b-b09d6c42adec (localhost) started\r\nfail: RequestIdLogger[3]\r\n      Request Id=e25ccb08-b97e-400d-b42b-b09d6c42adec FAILED<\/code><\/pre>\n<h4><b><span data-contrast=\"auto\">\u907f\u514d\u4ece\u5185\u5bb9\u6d41\u4e2d\u8bfb\u53d6<\/span><\/b><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/h4>\n<p><span data-contrast=\"auto\">\u5982\u679c\u60a8\u6253\u7b97\u8bfb\u53d6\u548c\u8bb0\u5f55\uff08\u4f8b\u5982\uff1a\u8bf7\u6c42\u548c\u54cd\u5e94\u5185\u5bb9<\/span><span data-contrast=\"auto\">\uff09<\/span><span data-contrast=\"auto\">\uff0c\u8bf7\u6ce8\u610f\uff0c\u5b83\u53ef\u80fd\u4f1a\u5bf9\u6700\u7ec8\u7528\u6237\u4f53\u9a8c\u4ea7\u751f\u4e0d\u5229\u7684\u526f\u4f5c\u7528\u5e76\u5bfc\u81f4\u9519\u8bef\u3002\u4f8b\u5982\uff0c\u8bf7\u6c42\u5185\u5bb9\u53ef\u80fd\u5728\u53d1\u9001\u4e4b\u524d\u88ab\u6d88\u8017\uff0c\u6216\u8005\u5de8\u5927\u7684\u54cd\u5e94\u5185\u5bb9\u53ef\u80fd\u6700\u7ec8\u88ab\u7f13\u51b2\u5728\u5185\u5b58\u4e2d<\/span><span data-contrast=\"auto\">\u3002<\/span><span data-contrast=\"auto\">\u6b64\u5916\uff0c\u5728<\/span><span data-contrast=\"auto\"> .NET 7 <\/span><span data-contrast=\"auto\">\u4e4b\u524d\uff0c\u8bbf\u95ee\u6807\u5934\u4e0d\u662f\u7ebf\u7a0b\u5b89\u5168\u7684\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u9519\u8bef\u548c\u610f\u5916\u884c\u4e3a<\/span><span data-contrast=\"auto\">\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<h4><b><span data-contrast=\"auto\">\u8c28\u614e\u4f7f\u7528\u5f02\u6b65\u65e5\u5fd7\u8bb0\u5f55<\/span><\/b><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/h4>\n<p><span data-contrast=\"auto\">\u6211\u4eec\u9884\u8ba1\u540c\u6b65<\/span><span data-contrast=\"auto\"><span style=\"color: #ff0000;\"> IHttpClientLogger<\/span> <\/span><span data-contrast=\"auto\">\u63a5\u53e3\u9002\u7528\u4e8e\u7edd\u5927\u591a\u6570\u81ea\u5b9a\u4e49\u65e5\u5fd7\u8bb0\u5f55\u7528\u4f8b\u3002\u51fa\u4e8e\u6027\u80fd\u539f\u56e0\uff0c\u5efa\u8bae\u4e0d\u8981\u5728\u65e5\u5fd7\u8bb0\u5f55\u4e2d\u4f7f\u7528\u5f02\u6b65\u3002\u4f46\u662f\uff0c\u5982\u679c\u4e25\u683c\u8981\u6c42\u65e5\u5fd7\u8bb0\u5f55\u4e2d\u7684\u5f02\u6b65\u8bbf\u95ee\uff0c\u60a8\u53ef\u4ee5\u5b9e\u73b0\u5f02\u6b65\u7248\u672c<\/span> <a href=\"https:\/\/learn.microsoft.com\/en-us\/dotnet\/api\/microsoft.extensions.http.logging.ihttpclientasynclogger?view=dotnet-plat-ext-8.0\"><span data-contrast=\"none\">IHttpClientAsyncLogger<\/span><\/a><span data-contrast=\"auto\">\u3002\u5b83\u6d3e\u751f\u81ea<\/span><span style=\"color: #ff0000;\" data-contrast=\"auto\"> IHttpClientLogger<\/span><span data-contrast=\"auto\">\uff0c\u56e0\u6b64\u53ef\u4ee5\u4f7f\u7528\u76f8\u540c\u7684<\/span><span data-contrast=\"auto\"><span style=\"color: #ff0000;\"> AddLogger<\/span> API <\/span><span data-contrast=\"auto\">\u8fdb\u884c\u6ce8\u518c<\/span><span data-contrast=\"auto\">\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">\u8bf7\u6ce8\u610f\uff0c\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u8fd8\u5e94\u8be5\u5b9e\u73b0\u65e5\u5fd7\u8bb0\u5f55\u65b9\u6cd5\u7684\u540c\u6b65\u5bf9\u5e94\u9879\uff0c\u7279\u522b\u662f\u5982\u679c\u8be5\u5b9e\u73b0\u662f\u9762\u5411<\/span><span data-contrast=\"auto\"> .NET Standard <\/span><span data-contrast=\"auto\">\u6216<\/span><span data-contrast=\"auto\"> .NET 5+ <\/span><span data-contrast=\"auto\">\u7684\u5e93\u7684\u4e00\u90e8\u5206\u3002<\/span> <span data-contrast=\"auto\">\u540c\u6b65\u5bf9\u5e94\u9879\u662f\u4ece\u540c\u6b65<\/span><span style=\"color: #ff0000;\" data-contrast=\"auto\"> HttpClient.Send <\/span><span data-contrast=\"auto\">\u65b9\u6cd5\u8c03\u7528\u7684\uff1b<\/span> <span data-contrast=\"auto\">\u5373\u4f7f<\/span><span data-contrast=\"auto\"> .NET Standard <\/span><span data-contrast=\"auto\">\u8868\u9762\u4e0d\u5305\u542b\u5b83\u4eec\uff0c<\/span><span data-contrast=\"auto\">.NET Standard <\/span><span data-contrast=\"auto\">\u5e93\u4e5f\u53ef\u4ee5\u5728<\/span><span data-contrast=\"auto\"> .NET 5+ <\/span><span data-contrast=\"auto\">\u5e94\u7528\u7a0b\u5e8f\u4e2d\u4f7f\u7528\uff0c\u56e0\u6b64\u6700\u7ec8\u7528\u6237\u53ef\u4ee5\u8bbf\u95ee\u540c\u6b65<\/span><span style=\"color: #ff0000;\" data-contrast=\"auto\"> HttpClient.Send <\/span><span data-contrast=\"auto\">\u65b9\u6cd5<\/span><span data-contrast=\"auto\">\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<h4><b><span data-contrast=\"auto\">\u5305\u88c5\u548c\u4e0d\u5305\u88c5\u8bb0\u5f55\u5668<\/span><\/b><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/h4>\n<p><span data-contrast=\"auto\">\u5f53\u60a8\u6dfb\u52a0\u8bb0\u5f55\u5668\u65f6\uff0c\u60a8\u53ef\u4ee5\u663e\u5f0f\u8bbe\u7f6e<\/span><span style=\"color: #ff0000;\" data-contrast=\"auto\">wrapHandlersPipeline<\/span><span data-contrast=\"auto\">\u53c2\u6570\u6765\u6307\u5b9a\u8bb0\u5f55\u5668\u662f\u5426\u5c06\u88ab<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<ul>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"17\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:860,&quot;335559991&quot;:440,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"1\" data-aria-level=\"1\"><span data-contrast=\"auto\">\u5305\u88c5\u5904\u7406\u7a0b\u5e8f\u7ba1\u9053\uff08\u6dfb\u52a0\u5230\u7ba1\u9053\u7684\u9876\u90e8\uff0c\u5bf9\u5e94\u4e8e\u4e0a\u9762<\/span><a href=\"https:\/\/devblogs.microsoft.com\/dotnet\/dotnet-8-networking-improvements\/#old-logging-overview\"><span data-contrast=\"none\">\u65e7\u65e5\u5fd7\u8bb0\u5f55\u6982\u8ff0\u90e8\u5206<\/span><\/a><span data-contrast=\"auto\">\u4e2d\u7684<\/span><span data-contrast=\"auto\"> 1\u30012\u30017 <\/span><span data-contrast=\"auto\">\u548c<\/span><span data-contrast=\"auto\"> 8 <\/span><span data-contrast=\"auto\">\u53f7\u6d88\u606f\uff09\n<\/span><\/p>\n<pre class=\"prettyprint language-default\"><code class=\"language-default\">  Request --&gt;\r\n*   [LogRequestStart()]                \/\/ wrapHandlersPipeline=TRUE\r\n      --&gt; Additional Handlers #1..N --&gt;    \/\/ handlers pipeline\r\n          --&gt; Primary Handler --&gt;\r\n                --------Transport--layer--------\r\n          &lt;-- Primary Handler &lt;--\r\n      &lt;-- Additional Handlers #N..1 &lt;--    \/\/ handlers pipeline\r\n*   [LogRequestStop()]                 \/\/ wrapHandlersPipeline=TRUE\r\n  Response &lt;--<\/code><\/pre>\n<\/li>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"13\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:860,&quot;335559991&quot;:440,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"2\" data-aria-level=\"1\"><span data-contrast=\"auto\">\u6216\u8005\uff0c\u4e0d\u5305\u88c5\u5904\u7406\u7a0b\u5e8f\u7ba1\u9053\uff08\u6dfb\u52a0\u5230\u5e95<\/span><span data-contrast=\"auto\">\u200b\u200b<\/span><span data-contrast=\"auto\">\u90e8\uff0c\u5bf9\u5e94\u4e8e\u4e0a\u9762<\/span><a href=\"https:\/\/devblogs.microsoft.com\/dotnet\/dotnet-8-networking-improvements\/#old-logging-overview\"><span data-contrast=\"none\">\u65e7\u65e5\u5fd7\u8bb0\u5f55\u6982\u8ff0\u90e8\u5206<\/span><\/a><span data-contrast=\"auto\">\u4e2d\u7684\u7b2c<\/span><span data-contrast=\"auto\"> 3\u30014\u30015 <\/span><span data-contrast=\"auto\">\u548c<\/span><span data-contrast=\"auto\"> 6 <\/span><span data-contrast=\"auto\">\u53f7\u6d88\u606f\uff09\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\"><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\n<\/span><\/span><\/p>\n<pre class=\"prettyprint language-default\"><code class=\"language-default\">  Request --&gt;\r\n    --&gt; Additional Handlers #1..N --&gt; \/\/ handlers pipeline\r\n*     [LogRequestStart()]             \/\/ wrapHandlersPipeline=FALSE\r\n          --&gt; Primary Handler --&gt;\r\n                --------Transport--layer--------\r\n          &lt;-- Primary Handler &lt;--\r\n*     [LogRequestStop()]              \/\/ wrapHandlersPipeline=FALSE\r\n    &lt;-- Additional Handlers #N..1 &lt;-- \/\/ handlers pipeline\r\n  Response &lt;--<\/code><\/pre>\n<\/li>\n<\/ul>\n<p><span data-contrast=\"auto\">\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u8bb0\u5f55\u5668\u88ab\u6dfb\u52a0\u4e3a\u4e0d\u5305\u88c5\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">\u5728\u5411\u7ba1\u9053\u6dfb\u52a0\u91cd\u8bd5\u5904\u7406\u7a0b\u5e8f\u7684\u60c5\u51b5\u4e0b\uff08\u4f8b\u5982<\/span><span data-contrast=\"auto\"> Polly <\/span><span data-contrast=\"auto\">\u6216\u67d0\u4e9b\u81ea\u5b9a\u4e49\u91cd\u8bd5\u5b9e\u73b0\uff09\uff0c\u5305\u88c5\u548c\u4e0d\u5305\u88c5\u7ba1\u9053\u4e4b\u95f4\u7684\u533a\u522b\u6700\u4e3a\u663e\u7740\u3002\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u5305\u88c5\u8bb0\u5f55\u5668\uff08\u4f4d\u4e8e\u9876\u90e8\uff09\u5c06\u8bb0\u5f55\u6709\u5173\u5355\u4e2a\u6210\u529f\u8bf7\u6c42\u7684\u6d88\u606f\uff0c\u8bb0\u5f55\u7684\u7ecf\u8fc7\u65f6\u95f4\u5c06\u662f\u4ece\u7528\u6237\u53d1\u8d77\u8bf7\u6c42\u5230\u6536\u5230\u54cd\u5e94\u7684\u603b\u65f6\u95f4\u3002\u975e\u5305\u88c5\u8bb0\u5f55\u5668\uff08\u4f4d\u4e8e\u5e95\u90e8\uff09\u5c06\u8bb0\u5f55\u6bcf\u6b21\u91cd\u8bd5\u8fed\u4ee3\uff0c\u6700\u521d\u7684\u8fed\u4ee3\u53ef\u80fd\u8bb0\u5f55\u5f02\u5e38\u6216\u4e0d\u6210\u529f\u7684\u72b6\u6001\u4ee3\u7801\uff0c\u6700\u540e\u4e00\u4e2a\u8bb0\u5f55\u6210\u529f\u3002<\/span> <span data-contrast=\"auto\">\u6bcf\u79cd\u60c5\u51b5\u6d88\u8017\u7684\u65f6\u95f4\u7eaf\u7cb9\u662f\u5728\u4e3b\u5904\u7406\u7a0b\u5e8f\u4e2d\u82b1\u8d39\u7684\u65f6\u95f4\uff08\u5b9e\u9645\u5728\u7f51\u7edc\u4e0a\u53d1\u9001\u8bf7\u6c42\u7684\u5904\u7406\u7a0b\u5e8f\uff0c\u4f8b\u5982<\/span><span data-contrast=\"auto\"><span style=\"color: #ff0000;\"> HttpClientHandler<\/span>\uff09\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">\u8fd9\u53ef\u4ee5\u7528\u4e0b\u56fe\u6765\u8bf4\u660e\uff1a<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<ul>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"12\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:860,&quot;335559991&quot;:440,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"1\" data-aria-level=\"1\"><span data-contrast=\"auto\">\u5305\u88c5\u6848\u4f8b<\/span><span data-contrast=\"auto\"> (<span style=\"color: #ff0000;\">wrapHandlersPipeline=TRUE<\/span>)\n<\/span><\/p>\n<pre class=\"prettyprint language-default\"><code class=\"language-default\">  Request --&gt;\r\n*   [LogRequestStart()]\r\n        --&gt; Additional Handlers #1..(N-1) --&gt;\r\n            --&gt; Retry Handler --&gt;\r\n              --&gt; \/\/1\r\n                  --&gt; Primary Handler --&gt;\r\n                  &lt;-- \"503 Service Unavailable\" &lt;--\r\n              --&gt; \/\/2\r\n                  --&gt; Primary Handler -&gt;\r\n                  &lt;-- \"503 Service Unavailable\" &lt;--\r\n              --&gt; \/\/3\r\n                  --&gt; Primary Handler --&gt;\r\n                  &lt;-- \"200 OK\" &lt;--\r\n            &lt;-- Retry Handler &lt;--\r\n        &lt;-- Additional Handlers #(N-1)..1 &lt;--\r\n*   [LogRequestStop()]\r\n  Response &lt;--<\/code><\/pre>\n<pre class=\"prettyprint language-default\"><code class=\"language-default\">info: Example.CustomLogger.Wrapping[1]\r\n      GET https:\/\/consoto.com\/\r\ninfo: Example.CustomLogger.Wrapping[2]\r\n      200 OK - 809.2135ms<\/code><\/pre>\n<\/li>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"11\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:860,&quot;335559991&quot;:440,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"1\" data-aria-level=\"1\"><span data-contrast=\"auto\">\u4e0d\u5305\u88c5\u6848\u4f8b<\/span><span data-contrast=\"auto\"> (<span style=\"color: #ff0000;\">wrapHandlersPipeline=FALSE<\/span>)\n<\/span><\/p>\n<pre class=\"prettyprint language-default\"><code class=\"language-default\">  Request --&gt;\r\n    --&gt; Additional Handlers #1..(N-1) --&gt;\r\n        --&gt; Retry Handler --&gt;\r\n          --&gt; \/\/1\r\n*           [LogRequestStart()]\r\n                --&gt; Primary Handler --&gt;\r\n                &lt;-- \"503 Service Unavailable\" &lt;--\r\n*           [LogRequestStop()]\r\n          --&gt; \/\/2\r\n*           [LogRequestStart()]\r\n                --&gt; Primary Handler --&gt;\r\n                &lt;-- \"503 Service Unavailable\" &lt;--\r\n*           [LogRequestStop()]\r\n          --&gt; \/\/3\r\n*           [LogRequestStart()]\r\n                --&gt; Primary Handler --&gt;\r\n                &lt;-- \"200 OK\" &lt;--\r\n*           [LogRequestStop()]\r\n        &lt;-- Retry Handler &lt;--\r\n    &lt;-- Additional Handlers #(N-1)..1 &lt;--\r\n  Response &lt;--<\/code><\/pre>\n<pre class=\"prettyprint language-default\"><code class=\"language-default\">info: Example.CustomLogger.NotWrapping[1]\r\n      GET https:\/\/consoto.com\/\r\ninfo: Example.CustomLogger.NotWrapping[2]\r\n      503 Service Unavailable - 98.613ms\r\ninfo: Example.CustomLogger.NotWrapping[1]\r\n      GET https:\/\/consoto.com\/\r\ninfo: Example.CustomLogger.NotWrapping[2]\r\n      503 Service Unavailable - 96.1932ms\r\ninfo: Example.CustomLogger.NotWrapping[1]\r\n      GET https:\/\/consoto.com\/\r\ninfo: Example.CustomLogger.NotWrapping[2]\r\n      200 OK - 579.2133ms<\/code><\/pre>\n<\/li>\n<\/ul>\n<h3><b><span data-contrast=\"auto\">\u7b80\u5316\u7684<\/span><\/b><span style=\"color: #ff0000;\"><b> SocketsHttpHandler <\/b><\/span><b><span data-contrast=\"auto\">\u914d\u7f6e<\/span><\/b><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/h3>\n<p><span data-contrast=\"auto\">.NET 8 <\/span><span data-contrast=\"auto\">\u6dfb\u52a0\u4e86\u66f4\u65b9\u4fbf\u3001\u66f4\u6d41\u7545\u7684\u65b9\u5f0f\u6765\u4f7f\u7528<\/span><span style=\"color: #ff0000;\" data-contrast=\"auto\"> SocketsHttpHandler <\/span><span data-contrast=\"auto\">\u4f5c\u4e3a<\/span><span data-contrast=\"auto\"><span style=\"color: #ff0000;\"> HttpClientFactory<\/span> <\/span><span data-contrast=\"auto\">\u4e2d\u7684\u4e3b\u5904\u7406\u7a0b\u5e8f<\/span><span data-contrast=\"auto\"> (<\/span><a href=\"https:\/\/github.com\/dotnet\/runtime\/issues\/84075\"><span data-contrast=\"auto\">dotnet\/runtime#<\/span><span data-contrast=\"none\">84075<\/span><\/a><span data-contrast=\"auto\">)\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">\u60a8\u53ef\u4ee5\u4f7f\u7528<\/span> <span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/learn.microsoft.com\/en-us\/dotnet\/api\/microsoft.extensions.dependencyinjection.httpclientbuilderextensions.usesocketshttphandler?view=dotnet-plat-ext-8.0\">UseSocketsHttpHandler<\/a> <\/span><span data-contrast=\"auto\">\u65b9\u6cd5\u8bbe\u7f6e\u548c\u914d\u7f6e<\/span><span data-contrast=\"auto\"><span style=\"color: #ff0000;\"> SocketsHttpHandler<\/span>\u3002 <\/span><span data-contrast=\"auto\">\u60a8\u53ef\u4ee5\u4f7f\u7528<\/span><span style=\"color: #ff0000;\" data-contrast=\"auto\"> IConfiguration <\/span><span data-contrast=\"auto\">\u4ece\u914d\u7f6e\u6587\u4ef6\u8bbe\u7f6e<\/span><span style=\"color: #ff0000;\" data-contrast=\"auto\"> SocketsHttpHandler <\/span><span data-contrast=\"auto\">\u5c5e\u6027\uff0c\u4e5f\u53ef\u4ee5\u4ece\u4ee3\u7801\u4e2d\u914d\u7f6e\u5b83\uff0c\u6216\u8005\u53ef\u4ee5\u7ed3\u5408\u4f7f\u7528\u8fd9\u4e24\u79cd\u65b9\u6cd5<\/span><span data-contrast=\"auto\">\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">\u8bf7\u6ce8\u610f\uff0c\u5c06<\/span><span style=\"color: #ff0000;\" data-contrast=\"auto\"> IConfiguration <\/span><span data-contrast=\"auto\">\u5e94\u7528\u4e8e<\/span><span style=\"color: #ff0000;\" data-contrast=\"auto\"> SocketsHttpHandler <\/span><span data-contrast=\"auto\">\u65f6\uff0c\u4ec5\u89e3\u6790<\/span><span data-contrast=\"auto\"><span style=\"color: #ff0000;\"> bool<\/span>\u3001<span style=\"color: #ff0000;\">int<\/span>\u3001<span style=\"color: #ff0000;\">Enum<\/span> <\/span><span data-contrast=\"auto\">\u6216<\/span><span style=\"color: #ff0000;\" data-contrast=\"auto\"> TimeSpan <\/span><span data-contrast=\"auto\">\u7c7b\u578b\u7684<\/span><span style=\"color: #ff0000;\" data-contrast=\"auto\"> SocketsHttpHandler <\/span><span data-contrast=\"auto\">\u5c5e\u6027\u3002<\/span><span data-contrast=\"auto\"><span style=\"color: #ff0000;\">IConfiguration<\/span> <\/span><span data-contrast=\"auto\">\u4e2d\u6240\u6709\u4e0d\u5339\u914d\u7684\u5c5e\u6027\u90fd\u5c06\u88ab\u5ffd\u7565\u3002\u914d\u7f6e\u4ec5\u5728\u6ce8\u518c\u65f6\u89e3\u6790\u4e00\u6b21\u5e76\u4e14\u4e0d\u4f1a\u91cd\u65b0\u52a0\u8f7d\uff0c\u56e0\u6b64\u5728\u5e94\u7528\u7a0b\u5e8f\u91cd\u65b0\u542f\u52a8\u4e4b\u524d\uff0c\u5904\u7406\u7a0b\u5e8f\u4e0d\u4f1a\u53cd\u6620\u4efb\u4f55\u914d\u7f6e\u6587\u4ef6\u66f4\u6539\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:true,&quot;335551550&quot;:1,&quot;335551620&quot;:1}\">\u00a0<\/span><\/p>\n<pre class=\"prettyprint language-default\"><code class=\"language-default\">\/\/ sets up properties on the handler directly\r\nservices.AddHttpClient(\"foo\")\r\n    .UseSocketsHttpHandler((h, _) =&gt; h.UseCookies = false);\r\n\r\n\/\/ uses a builder to combine approaches\r\nservices.AddHttpClient(\"bar\")\r\n    .UseSocketsHttpHandler(b =&gt;\r\n        b.Configure(config.GetSection($\"HttpClient:bar\")) \/\/ loads simple properties from config\r\n         .Configure((h, _) =&gt; \/\/ sets up SslOptions in code\r\n         {\r\n            h.SslOptions.RemoteCertificateValidationCallback = delegate { return true; };\r\n         });\r\n    );<\/code><\/pre>\n<pre class=\"prettyprint language-default\"><code class=\"language-default\">{\r\n  \"HttpClient\": {\r\n    \"bar\": {\r\n      \"AllowAutoRedirect\": true,\r\n      \"UseCookies\": false,\r\n      \"ConnectTimeout\": \"00:00:05\"\r\n    }\r\n  }\r\n}<\/code><\/pre>\n<h3><b><span data-contrast=\"auto\">QUIC\u00a0<\/span><\/b><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/h3>\n<h4><b><span data-contrast=\"auto\">OpenSSL 3 <\/span><\/b><b><span data-contrast=\"auto\">\u652f\u6301<\/span><\/b><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/h4>\n<p><span data-contrast=\"auto\">\u5f53\u524d\u5927\u591a\u6570<\/span><span data-contrast=\"auto\"> Linux <\/span><span data-contrast=\"auto\">\u53d1\u884c\u7248\u5728\u5176\u6700\u65b0\u7248\u672c\u4e2d\u90fd\u91c7\u7528\u4e86<\/span><span data-contrast=\"auto\"> OpenSSL 3\uff1a<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<ul>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"9\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:860,&quot;335559991&quot;:440,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"1\" data-aria-level=\"1\"><span data-contrast=\"auto\">Debian 12+\uff1a<\/span><a href=\"https:\/\/packages.debian.org\/bookworm\/openssl\"><span data-contrast=\"none\">Bookworm OpenSSL<\/span><\/a><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/li>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"9\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:860,&quot;335559991&quot;:440,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"2\" data-aria-level=\"1\"><span data-contrast=\"auto\">Ubuntu 22+\uff1a<\/span><a href=\"https:\/\/packages.ubuntu.com\/jammy\/openssl\"><span data-contrast=\"none\">Jammy OpenSSL<\/span><\/a><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/li>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"9\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:860,&quot;335559991&quot;:440,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"3\" data-aria-level=\"1\"><span data-contrast=\"auto\">Fedora 37+\uff1a<\/span><a href=\"https:\/\/packages.fedoraproject.org\/pkgs\/openssl\/openssl\/\"><span data-contrast=\"none\">Fedora OpenSSL<\/span><\/a><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/li>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"9\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:860,&quot;335559991&quot;:440,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"4\" data-aria-level=\"1\"><span data-contrast=\"auto\">OpenSUSE\uff1a<\/span><a href=\"https:\/\/software.opensuse.org\/package\/openssl\"><span data-contrast=\"auto\">Tumbleweed<\/span><span data-contrast=\"none\"> OpenSSL<\/span><\/a><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/li>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"9\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:860,&quot;335559991&quot;:440,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"5\" data-aria-level=\"1\"><span data-contrast=\"auto\">AlmaLinux 9+\uff1a<\/span><a href=\"http:\/\/repo.almalinux.org\/almalinux\/9\/BaseOS\/x86_64\/os\/Packages\/\"><span data-contrast=\"auto\">AlmaLinux 9 <\/span><span data-contrast=\"none\">\u8f6f\u4ef6\u5305\u5b58\u50a8\u5e93<\/span><\/a><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/li>\n<\/ul>\n<p><span data-contrast=\"auto\">.NET 8 <\/span><span data-contrast=\"auto\">\u7684<\/span><span data-contrast=\"auto\"> QUIC <\/span><span data-contrast=\"auto\">\u652f\u6301\u5df2\u51c6\u5907\u5c31\u7eea<\/span><span data-contrast=\"auto\"> (<\/span><a href=\"https:\/\/github.com\/dotnet\/runtime\/issues\/81801\"><span data-contrast=\"auto\">dotnet\/runtime#<\/span><span data-contrast=\"none\">81801<\/span><\/a><span data-contrast=\"auto\">)\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<p><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><span data-contrast=\"auto\">\u5b9e\u73b0\u8fd9\u4e00\u76ee\u6807\u7684\u7b2c\u4e00\u6b65\u662f\u786e\u4fdd<\/span><span data-contrast=\"auto\"><span style=\"color: #ff0000;\"> System.Net.Quic<\/span> <\/span><span data-contrast=\"auto\">\u4e0b\u4f7f\u7528\u7684<\/span><span data-contrast=\"auto\"> QUIC <\/span><span data-contrast=\"auto\">\u5b9e\u73b0<\/span> <a href=\"https:\/\/github.com\/microsoft\/msquic\"><span data-contrast=\"none\">MsQuic<\/span><\/a> <span data-contrast=\"auto\">\u53ef\u4ee5\u4e0e<\/span><span data-contrast=\"auto\"> OpenSSL 3+ <\/span><span data-contrast=\"auto\">\u4e00\u8d77\u4f7f\u7528\u3002<\/span> <span data-contrast=\"auto\">\u8fd9\u9879\u5de5\u4f5c\u5728<\/span><span data-contrast=\"auto\"> MsQuic <\/span><span data-contrast=\"auto\">\u5b58\u50a8\u5e93<\/span> <a href=\"https:\/\/github.com\/microsoft\/msquic\/issues\/2039\"><span data-contrast=\"auto\">microsoft<\/span><span data-contrast=\"none\">\/msquic#2039<\/span><\/a> <span data-contrast=\"auto\">\u4e2d\u8fdb\u884c<\/span><span data-contrast=\"auto\">\u3002 <\/span><span data-contrast=\"auto\">\u4e0b\u4e00\u6b65\u662f\u786e\u4fdd\u6784\u5efa\u5e76\u53d1\u5e03\u7684<\/span><span data-contrast=\"auto\"><span style=\"color: #ff0000;\"> libmsquic<\/span> <\/span><span data-contrast=\"auto\">\u5305\u76f8\u5e94\u7684\u4f9d\u8d56\u4e8e\u7279\u5b9a\u53d1\u884c\u7248\u548c\u7248\u672c\u7684\u9ed8\u8ba4<\/span><span data-contrast=\"auto\"> OpenSSL <\/span><span data-contrast=\"auto\">\u7248\u672c\u3002\u4f8b\u5982<\/span><span data-contrast=\"auto\"> Debian <\/span><span data-contrast=\"auto\">\u53d1\u884c\u7248\uff1a<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<ul>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"10\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:860,&quot;335559991&quot;:440,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"6\" data-aria-level=\"1\"><a href=\"https:\/\/packages.microsoft.com\/debian\/11\/prod\/pool\/main\/libm\/libmsquic\/\"><span data-contrast=\"auto\">Debian 11 <\/span><span data-contrast=\"none\">libmsquic<\/span><\/a> <span data-contrast=\"auto\">\u4f9d\u8d56\u4e8e<\/span><span data-contrast=\"auto\"> OpenSSL 1.1<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/li>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"10\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:860,&quot;335559991&quot;:440,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"7\" data-aria-level=\"1\"><a href=\"https:\/\/packages.microsoft.com\/debian\/12\/prod\/pool\/main\/libm\/libmsquic\/\"><span data-contrast=\"auto\">Debian 12 <\/span><span data-contrast=\"none\">libmsquic<\/span><\/a> <span data-contrast=\"auto\">\u4f9d\u8d56\u4e8e<\/span><span data-contrast=\"auto\"> OpenSSL 3<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/li>\n<\/ul>\n<p><span data-contrast=\"auto\">\u6700\u540e\u4e00\u6b65\u662f\u786e\u4fdd\u6b63\u5728\u6d4b\u8bd5\u7684<\/span><span data-contrast=\"auto\">MsQuic <\/span><span data-contrast=\"auto\">\u548c<\/span><span data-contrast=\"auto\"> OpenSSL<\/span><span data-contrast=\"auto\">\u7248\u672c\u6b63\u786e\uff0c\u5e76\u4e14\u6d4b\u8bd5\u8986\u76d6\u4e86\u6240\u6709<\/span><span data-contrast=\"auto\"> .NET <\/span><span data-contrast=\"auto\">\u652f\u6301\u7684\u53d1\u884c\u7248<\/span><span data-contrast=\"auto\">\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<h3><b><span data-contrast=\"auto\">\u5f02\u5e38<\/span><\/b><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/h3>\n<p><span data-contrast=\"auto\">\u5728<\/span><span data-contrast=\"auto\"> .NET 7 <\/span><span data-contrast=\"auto\">\u4e2d\u53d1\u5e03<\/span><span data-contrast=\"auto\"> QUIC API<\/span><span data-contrast=\"auto\">\uff08\u4f5c\u4e3a<\/span><a href=\"https:\/\/github.com\/dotnet\/designs\/blob\/main\/accepted\/2021\/preview-features\/preview-features.md\"><span data-contrast=\"none\">\u9884\u89c8\u529f\u80fd<\/span><\/a><span data-contrast=\"auto\">\uff09\u540e\uff0c\u6211\u4eec\u6536\u5230\u4e86\u51e0\u4e2a\u6709\u5173\u5f02\u5e38\u7684\u95ee\u9898\uff1a<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<ul>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"4\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:860,&quot;335559991&quot;:440,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"8\" data-aria-level=\"1\"><a href=\"https:\/\/github.com\/dotnet\/runtime\/issues\/78751\"><span data-contrast=\"none\">dotnet\/runtime#78751<\/span><\/a><span data-contrast=\"auto\">\uff1a<\/span> \u627e\u4e0d\u5230\u4e3b\u673a\u65f6<span style=\"font-size: 1rem; text-align: var(--bs-body-text-align); color: #ff0000;\" data-contrast=\"auto\">QuicConnection.ConnectAsync<\/span><span style=\"font-size: 1rem; text-align: var(--bs-body-text-align);\" data-contrast=\"auto\">\u5f15\u53d1<\/span><span style=\"color: #ff0000;\"><span style=\"font-size: 1rem; text-align: var(--bs-body-text-align);\" data-contrast=\"auto\">SocketException<\/span><span style=\"font-size: 1rem; text-align: var(--bs-body-text-align);\" data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6,&quot;335559685&quot;:860}\">\u00a0<\/span><\/span><\/li>\n<\/ul>\n<ul>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"4\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:860,&quot;335559991&quot;:440,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"9\" data-aria-level=\"1\"><a href=\"https:\/\/github.com\/dotnet\/runtime\/issues\/78096\"><span data-contrast=\"none\">dotnet\/runtime#78096<\/span><\/a><span data-contrast=\"auto\">\uff1a<\/span> QuicListener AcceptConnectionAsync <span style=\"font-size: 1rem; text-align: var(--bs-body-text-align);\" data-contrast=\"auto\">\u548c<\/span><span style=\"font-size: 1rem; text-align: var(--bs-body-text-align);\" data-contrast=\"auto\"> OperationCanceledException<\/span><span style=\"font-size: 1rem; text-align: var(--bs-body-text-align);\" data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6,&quot;335559685&quot;:860}\">\u00a0<\/span><\/li>\n<\/ul>\n<ul>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"4\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:860,&quot;335559991&quot;:440,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"1\" data-aria-level=\"1\"><a href=\"https:\/\/github.com\/dotnet\/runtime\/issues\/75115\"><span data-contrast=\"none\">dotnet\/runtime#75115<\/span><\/a><span data-contrast=\"auto\">\uff1aQuicListener.AcceptConnectionAsync <\/span><span data-contrast=\"auto\">\u91cd\u65b0\u629b\u51fa\u5f02\u5e38<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/li>\n<\/ul>\n<p><span data-contrast=\"auto\">\u5728<\/span><span data-contrast=\"auto\"> .NET 8 <\/span><span data-contrast=\"auto\">\u4e2d\uff0c<\/span><span data-contrast=\"auto\">System.Net.Quic <\/span><span data-contrast=\"auto\">\u5f02\u5e38\u884c\u4e3a\u5728<\/span> <a href=\"https:\/\/github.com\/dotnet\/runtime\/issues\/82262\"><span data-contrast=\"none\">dotnet\/runtime#82262<\/span><\/a> <span data-contrast=\"auto\">\u4e2d\u8fdb\u884c\u4e86\u5f7b\u5e95\u4fee\u6539\uff0c\u5e76\u4e14\u89e3\u51b3\u4e86\u4e0a\u8ff0\u95ee\u9898<\/span><span data-contrast=\"auto\">\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<p><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><span data-contrast=\"auto\">\u4fee\u8ba2\u7684\u4e3b\u8981\u76ee\u6807\u4e4b\u4e00\u662f\u786e\u4fdd<\/span><span data-contrast=\"auto\"><span style=\"color: #ff0000;\"> System.Net.Quic<\/span> <\/span><span data-contrast=\"auto\">\u4e2d\u7684\u5f02\u5e38\u884c\u4e3a\u5728\u6574\u4e2a\u547d\u540d\u7a7a\u95f4\u4e2d\u5c3d\u53ef\u80fd\u4e00\u81f4\u3002<\/span> <span data-contrast=\"auto\">\u603b\u7684\u6765\u8bf4\uff0c\u5f53\u524d\u7684\u884c\u4e3a\u53ef\u4ee5\u603b\u7ed3\u5982\u4e0b<\/span><span data-contrast=\"auto\">\uff1a<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<ul>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"4\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:860,&quot;335559991&quot;:440,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"2\" data-aria-level=\"1\"><span style=\"color: #ff0000;\" data-contrast=\"auto\">QuicException<\/span><span data-contrast=\"auto\">\uff1a\u7279\u5b9a\u4e8e<\/span><span data-contrast=\"auto\"> QUIC <\/span><span data-contrast=\"auto\">\u534f\u8bae\u6216\u4e0e\u5176\u5904\u7406\u76f8\u5173\u7684\u6240\u6709\u9519\u8bef\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/li>\n<\/ul>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li data-leveltext=\"o\" data-font=\"Courier New\" data-listid=\"5\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:1280,&quot;335559991&quot;:440,&quot;469769226&quot;:&quot;Courier New&quot;,&quot;469769242&quot;:[9675],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;o&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"1\" data-aria-level=\"1\"><span data-contrast=\"auto\">\u8fde\u63a5\u7531\u672c\u5730\u6216\u7531\u5bf9\u7b49\u65b9\u5173\u95ed\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/li>\n<li data-leveltext=\"o\" data-font=\"Courier New\" data-listid=\"5\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:1280,&quot;335559991&quot;:440,&quot;469769226&quot;:&quot;Courier New&quot;,&quot;469769242&quot;:[9675],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;o&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"2\" data-aria-level=\"1\"><span data-contrast=\"auto\">\u8fde\u63a5\u56e0\u4e0d\u6d3b\u52a8\u800c\u8d85\u65f6<\/span><span data-contrast=\"auto\">\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/li>\n<li data-leveltext=\"o\" data-font=\"Courier New\" data-listid=\"5\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:1280,&quot;335559991&quot;:440,&quot;469769226&quot;:&quot;Courier New&quot;,&quot;469769242&quot;:[9675],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;o&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"3\" data-aria-level=\"1\"><span data-contrast=\"auto\">\u6d41\u88ab\u672c\u5730\u6216\u7531\u5bf9\u7b49\u65b9\u4e2d\u6b62\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/li>\n<li data-leveltext=\"o\" data-font=\"Courier New\" data-listid=\"5\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:1280,&quot;335559991&quot;:440,&quot;469769226&quot;:&quot;Courier New&quot;,&quot;469769242&quot;:[9675],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;o&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"4\" data-aria-level=\"1\"><a href=\"https:\/\/learn.microsoft.com\/en-us\/dotnet\/api\/system.net.quic.quicerror?view=net-8.0\"><span data-contrast=\"none\">QuicError<\/span><\/a> <span data-contrast=\"auto\">\u4e2d\u63cf\u8ff0\u7684\u5176\u4ed6\u9519\u8bef<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<ul>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"4\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:860,&quot;335559991&quot;:440,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"3\" data-aria-level=\"1\"><span style=\"color: #ff0000;\" data-contrast=\"auto\">SocketException<\/span><span data-contrast=\"auto\">\uff1a\u9488\u5bf9\u7f51\u7edc\u95ee\u9898\uff0c\u4f8b\u5982\u7f51\u7edc\u72b6\u51b5\u3001\u540d\u79f0\u89e3\u6790\u6216\u7528\u6237\u9519\u8bef\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/li>\n<\/ul>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li data-leveltext=\"o\" data-font=\"Courier New\" data-listid=\"6\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:1280,&quot;335559991&quot;:440,&quot;469769226&quot;:&quot;Courier New&quot;,&quot;469769242&quot;:[9675],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;o&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"5\" data-aria-level=\"1\"><span data-contrast=\"auto\">\u5730\u5740\u5df2\u88ab\u4f7f\u7528\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/li>\n<li data-leveltext=\"o\" data-font=\"Courier New\" data-listid=\"6\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:1280,&quot;335559991&quot;:440,&quot;469769226&quot;:&quot;Courier New&quot;,&quot;469769242&quot;:[9675],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;o&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"6\" data-aria-level=\"1\"><span data-contrast=\"auto\">\u65e0\u6cd5\u8bbf\u95ee\u76ee\u6807\u4e3b\u673a\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/li>\n<li data-leveltext=\"o\" data-font=\"Courier New\" data-listid=\"6\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:1280,&quot;335559991&quot;:440,&quot;469769226&quot;:&quot;Courier New&quot;,&quot;469769242&quot;:[9675],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;o&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"7\" data-aria-level=\"1\"><span data-contrast=\"auto\">\u6307\u5b9a\u7684\u5730\u5740\u65e0\u6548\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/li>\n<li data-leveltext=\"o\" data-font=\"Courier New\" data-listid=\"6\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:1280,&quot;335559991&quot;:440,&quot;469769226&quot;:&quot;Courier New&quot;,&quot;469769242&quot;:[9675],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;o&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"8\" data-aria-level=\"1\"><span data-contrast=\"auto\">\u65e0\u6cd5\u89e3\u6790\u4e3b\u673a\u540d\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<ul>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"4\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:860,&quot;335559991&quot;:440,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"4\" data-aria-level=\"1\"><span style=\"color: #ff0000;\" data-contrast=\"auto\">AuthenticationException<\/span><span data-contrast=\"auto\">\uff1a\u6240\u6709\u4e0e<\/span><span data-contrast=\"auto\"> TLS <\/span><span data-contrast=\"auto\">\u76f8\u5173\u7684\u95ee\u9898\u3002<\/span> <span data-contrast=\"auto\">\u76ee\u6807\u662f\u5177\u6709\u4e0e<\/span> <a href=\"https:\/\/learn.microsoft.com\/en-us\/dotnet\/api\/system.net.security.sslstream?view=net-8.0\"><span data-contrast=\"none\">SslStream<\/span><\/a> <span data-contrast=\"auto\">\u7c7b\u4f3c\u7684\u884c\u4e3a<\/span><span data-contrast=\"auto\">\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/li>\n<\/ul>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li data-leveltext=\"o\" data-font=\"Courier New\" data-listid=\"7\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:1280,&quot;335559991&quot;:440,&quot;469769226&quot;:&quot;Courier New&quot;,&quot;469769242&quot;:[9675],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;o&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"9\" data-aria-level=\"1\"><span data-contrast=\"auto\">\u8bc1\u4e66\u76f8\u5173\u9519\u8bef\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/li>\n<li data-leveltext=\"o\" data-font=\"Courier New\" data-listid=\"7\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:1280,&quot;335559991&quot;:440,&quot;469769226&quot;:&quot;Courier New&quot;,&quot;469769242&quot;:[9675],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;o&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"10\" data-aria-level=\"1\"><span data-contrast=\"auto\">ALPN <\/span><span data-contrast=\"auto\">\u534f\u5546\u9519\u8bef\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/li>\n<li data-leveltext=\"o\" data-font=\"Courier New\" data-listid=\"7\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:1280,&quot;335559991&quot;:440,&quot;469769226&quot;:&quot;Courier New&quot;,&quot;469769242&quot;:[9675],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;o&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"11\" data-aria-level=\"1\"><span data-contrast=\"auto\">\u63e1\u624b\u671f\u95f4\u7528\u6237\u53d6\u6d88\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<ul>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"4\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:860,&quot;335559991&quot;:440,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"5\" data-aria-level=\"1\"><span data-contrast=\"auto\"><span style=\"color: #ff0000;\">ArgumentException<\/span>\uff1a <\/span><span data-contrast=\"auto\">\u5f53\u63d0\u4f9b<\/span><a href=\"https:\/\/learn.microsoft.com\/en-us\/dotnet\/api\/system.net.quic.quicconnectionoptions?view=net-8.0\"><span data-contrast=\"none\">QuicConnectionOptions<\/span><\/a><span data-contrast=\"auto\">\u6216<\/span><a href=\"https:\/\/learn.microsoft.com\/en-us\/dotnet\/api\/system.net.quic.quiclisteneroptions?view=net-8.0\"><span data-contrast=\"none\">QuicListenerOptions<\/span><\/a><span data-contrast=\"auto\">\u65e0\u6548\u65f6<\/span><span data-contrast=\"auto\">\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/li>\n<\/ul>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li data-leveltext=\"o\" data-font=\"Courier New\" data-listid=\"8\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:1280,&quot;335559991&quot;:440,&quot;469769226&quot;:&quot;Courier New&quot;,&quot;469769242&quot;:[9675],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;o&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"1\" data-aria-level=\"1\"><span data-contrast=\"auto\">\u63d0\u4f9b\u7684\u6d41\u9650\u5236\u4e0d\u5728<\/span><span data-contrast=\"auto\"> 0-65535 <\/span><span data-contrast=\"auto\">\u8303\u56f4\u5185\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/li>\n<li data-leveltext=\"o\" data-font=\"Courier New\" data-listid=\"8\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:1280,&quot;335559991&quot;:440,&quot;469769226&quot;:&quot;Courier New&quot;,&quot;469769242&quot;:[9675],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;o&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"2\" data-aria-level=\"1\"><span data-contrast=\"auto\">\u7701\u7565\u5f3a\u5236\u5c5e\u6027\uff0c\u4f8b\u5982\uff1a<\/span><a href=\"https:\/\/learn.microsoft.com\/en-us\/dotnet\/api\/system.net.quic.quicconnectionoptions.defaultcloseerrorcode?view=net-8.0#system-net-quic-quicconnectionoptions-defaultcloseerrorcode\"><span data-contrast=\"none\">DefaultCloseErrorCode<\/span><\/a><span data-contrast=\"auto\">\u6216<\/span><a href=\"https:\/\/learn.microsoft.com\/en-us\/dotnet\/api\/system.net.quic.quicconnectionoptions.defaultstreamerrorcode?view=net-8.0#system-net-quic-quicconnectionoptions-defaultstreamerrorcode\"><span data-contrast=\"none\">DefaultStreamErrorCode<\/span><\/a><span data-contrast=\"auto\">\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/li>\n<li data-leveltext=\"o\" data-font=\"Courier New\" data-listid=\"8\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:1280,&quot;335559991&quot;:440,&quot;469769226&quot;:&quot;Courier New&quot;,&quot;469769242&quot;:[9675],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;o&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"3\" data-aria-level=\"1\"><span data-contrast=\"auto\">\u672a\u6307\u5b9a<\/span><a href=\"https:\/\/learn.microsoft.com\/en-us\/dotnet\/api\/system.net.quic.quicclientconnectionoptions.clientauthenticationoptions?view=net-8.0\"><span data-contrast=\"none\">ClientAuthenticationOptions<\/span><\/a><span data-contrast=\"auto\">\u6216<\/span><a href=\"https:\/\/learn.microsoft.com\/en-us\/dotnet\/api\/system.net.quic.quicserverconnectionoptions.serverauthenticationoptions?view=net-8.0\"><span data-contrast=\"none\">ServerAuthenticationOptions<\/span><\/a><span data-contrast=\"auto\">.<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<ul>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"4\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:860,&quot;335559991&quot;:440,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"1\" data-aria-level=\"1\"><span style=\"color: #ff0000;\" data-contrast=\"auto\">OperationCanceledException<\/span><span data-contrast=\"auto\">\uff1a\u6bcf\u5f53<\/span><a href=\"https:\/\/learn.microsoft.com\/en-us\/dotnet\/api\/system.threading.cancellationtoken?view=net-8.0\"><span data-contrast=\"none\">CancellationToken<\/span><\/a><span data-contrast=\"auto\">\u88ab\u89e6\u53d1\u65f6\u53d6\u6d88\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/li>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"4\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:860,&quot;335559991&quot;:440,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"2\" data-aria-level=\"1\"><span style=\"color: #ff0000;\" data-contrast=\"auto\">ObjectDisposedException<\/span><span data-contrast=\"auto\">\uff1a\u6bcf\u5f53\u5728\u5df2\u91ca\u653e\u7684\u5bf9\u8c61\u4e0a\u8c03\u7528\u65b9\u6cd5\u65f6\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/li>\n<\/ul>\n<p><span data-contrast=\"auto\">\u8bf7\u6ce8\u610f\uff0c\u4e0a\u8ff0\u793a\u4f8b\u5e76\u4e0d\u8be6\u5c3d\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">\u9664\u4e86\u6539\u53d8\u884c\u4e3a\u4e4b\u5916\uff0c<\/span><a href=\"https:\/\/learn.microsoft.com\/en-us\/dotnet\/api\/system.net.quic.quicexception?view=net-8.0\"><span data-contrast=\"none\">QuicException<\/span><\/a> <span data-contrast=\"auto\">\u4e5f\u53d1\u751f\u4e86\u6539\u53d8\u3002<\/span> <span data-contrast=\"auto\">\u5176\u4e2d\u4e00\u9879\u53d8\u5316\u662f\u8c03\u6574<\/span> <a href=\"https:\/\/learn.microsoft.com\/en-us\/dotnet\/api\/system.net.quic.quicerror?view=net-8.0\"><span data-contrast=\"none\">QuicError<\/span><\/a> <span data-contrast=\"auto\">\u679a\u4e3e\u503c\u3002\u73b0\u5728<\/span><span data-contrast=\"auto\"><span style=\"color: #ff0000;\"> SocketException<\/span> <\/span><span data-contrast=\"auto\">\u6db5\u76d6\u7684\u9879\u76ee\u5df2\u88ab\u5220\u9664\uff0c\u5e76\u4e3a\u7528\u6237\u56de\u8c03\u9519\u8bef\u6dfb\u52a0\u4e86\u4e00\u4e2a\u65b0\u503c<\/span><span data-contrast=\"auto\"> (<\/span><a href=\"https:\/\/github.com\/dotnet\/runtime\/issues\/87259\"><span data-contrast=\"auto\">dotnet\/runtime#<\/span><span data-contrast=\"none\">87259<\/span><\/a><span data-contrast=\"auto\">)\u3002<\/span><span data-contrast=\"auto\">\u65b0\u6dfb\u52a0\u7684<\/span><span style=\"color: #ff0000;\" data-contrast=\"auto\"> CallbackError <\/span><span data-contrast=\"auto\">\u7528\u4e8e\u533a\u5206<\/span><span data-contrast=\"auto\">\u00a0<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<p><a href=\"https:\/\/learn.microsoft.com\/en-us\/dotnet\/api\/system.net.quic.quiclisteneroptions.connectionoptionscallback?view=net-8.0#system-net-quic-quiclisteneroptions-connectionoptionscallback\"><span data-contrast=\"none\">QuicListenerOptions.ConnectionOptionsCallback<\/span><\/a> <span data-contrast=\"auto\">\u5f15\u53d1\u7684\u5f02\u5e38\u4e0e<\/span><span style=\"color: #ff0000;\" data-contrast=\"auto\"> System.Net.Quic <\/span><span data-contrast=\"auto\">\u5f15\u53d1\u7684\u5f02\u5e38<\/span><span data-contrast=\"auto\"> (<\/span><a href=\"https:\/\/github.com\/dotnet\/runtime\/pull\/88614\"><span data-contrast=\"auto\">dotnet\/runtime#<\/span><span data-contrast=\"none\">88614<\/span><\/a><span data-contrast=\"auto\">)<\/span><span data-contrast=\"auto\">\u3002\u56e0\u6b64\uff0c\u5982\u679c\u7528\u6237\u4ee3\u7801\u629b\u51fa<\/span><span data-contrast=\"auto\"> ArgumentException\uff0c<\/span><a href=\"https:\/\/learn.microsoft.com\/en-us\/dotnet\/api\/system.net.quic.quiclistener.acceptconnectionasync?view=net-8.0\"><span data-contrast=\"none\">QuicListener.AcceptConnectionAsync<\/span><\/a> <span data-contrast=\"auto\">\u4f1a\u5c06\u5176\u5305\u88c5\u5728<\/span> <a href=\"https:\/\/learn.microsoft.com\/en-us\/dotnet\/api\/system.net.quic.quicexception?view=net-8.0\"><span data-contrast=\"none\">QuicException<\/span><\/a> <span data-contrast=\"auto\">\u4e2d\uff0c\u5e76\u5c06<\/span> <a href=\"https:\/\/learn.microsoft.com\/en-us\/dotnet\/api\/system.net.quic.quicexception.quicerror?view=net-8.0\"><span data-contrast=\"none\">QuicError<\/span><\/a> <span data-contrast=\"auto\">\u8bbe\u7f6e\u4e3a<\/span><span style=\"color: #ff0000;\" data-contrast=\"auto\"> CallbackError<\/span><span data-contrast=\"auto\">\uff0c\u5e76\u4e14\u5185\u90e8\u5f02\u5e38\u5c06\u5305\u542b\u539f\u59cb\u7528\u6237\u629b\u51fa\u7684\u5f02\u5e38\u3002\u5b83\u53ef\u4ee5\u8fd9\u6837\u4f7f\u7528<\/span><span data-contrast=\"auto\">\uff1a<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<pre class=\"prettyprint language-default\"><code class=\"language-default\">await using var listener = await QuicListener.ListenAsync(new QuicListenerOptions\r\n{\r\n    \/\/ ...\r\n    ConnectionOptionsCallback = (con, hello, token) =&gt;\r\n    {\r\n        if (blockedServers.Contains(hello.ServerName))\r\n        {\r\n            throw new ArgumentException($\"Connection attempt from forbidden server: '{hello.ServerName}'.\", nameof(hello));\r\n        }\r\n\r\n        return ValueTask.FromResult(new QuicServerConnectionOptions\r\n        {\r\n            \/\/ ...\r\n        });\r\n    },\r\n});\r\n\/\/ ...\r\ntry\r\n{\r\n    await listener.AcceptConnectionAsync();\r\n}\r\ncatch (QuicException ex) when (ex.QuicError == QuicError.CallbackError &amp;&amp; ex.InnerException is ArgumentException)\r\n{\r\n    Console.WriteLine($\"Blocked connection attempt from forbidden server: {ex.InnerException.Message}\");\r\n}\r\n<\/code><\/pre>\n<p><span data-contrast=\"auto\">\u5f02\u5e38\u90e8\u5206\u7684\u6700\u540e\u4e00\u4e2a\u66f4\u6539\u662f\u5c06\u4f20\u8f93\u9519\u8bef\u4ee3\u7801\u6dfb\u52a0\u5230<\/span><span data-contrast=\"auto\"><span style=\"color: #ff0000;\"> QuicException<\/span> <\/span><span data-contrast=\"auto\">\u4e2d<\/span><span data-contrast=\"auto\"> (<\/span><a href=\"https:\/\/github.com\/dotnet\/runtime\/pull\/88550\"><span data-contrast=\"auto\">dotnet\/runtime#<\/span><span data-contrast=\"none\">88550<\/span><\/a><span data-contrast=\"auto\">)\u3002 <\/span><span data-contrast=\"auto\">\u4f20\u8f93\u9519\u8bef\u4ee3\u7801\u7531<\/span> <a href=\"https:\/\/www.rfc-editor.org\/rfc\/rfc9000.html#name-transport-error-codes\"><span data-contrast=\"auto\">RFC 9000 <\/span><span data-contrast=\"none\">\u4f20\u8f93\u9519\u8bef\u4ee3\u7801<\/span><\/a><span data-contrast=\"auto\">\u5b9a\u4e49\uff0c\u5e76\u4e14<\/span> <a href=\"https:\/\/github.com\/microsoft\/msquic\"><span data-contrast=\"none\">MsQuic<\/span><\/a> <span data-contrast=\"auto\">\u7684<\/span><span style=\"color: #ff0000;\" data-contrast=\"auto\"> System.Net.Quic <\/span><span data-contrast=\"auto\">\u5df2\u7ecf\u53ef\u4ee5\u4f7f\u7528\u5b83\u4eec\uff0c\u53ea\u662f\u6ca1\u6709\u516c\u5f00\u3002<\/span> <span data-contrast=\"auto\">\u56e0\u6b64\uff0c<\/span><span data-contrast=\"auto\"><span style=\"color: #ff0000;\">QuicException<\/span> <\/span><span data-contrast=\"auto\">\u4e2d\u6dfb\u52a0\u4e86\u4e00\u4e2a\u65b0\u7684\u53ef\u4e3a<\/span><span data-contrast=\"auto\"> null <\/span><span data-contrast=\"auto\">\u7684\u5c5e\u6027\uff1a<\/span><a href=\"https:\/\/learn.microsoft.com\/en-us\/dotnet\/api\/system.net.quic.quicexception.transporterrorcode?view=net-8.0\"><span data-contrast=\"none\">TransportErrorCode<\/span><\/a><span data-contrast=\"auto\">\u3002 <\/span><span data-contrast=\"auto\">\u6211\u4eec\u8981\u611f\u8c22\u793e\u533a\u8d21\u732e\u8005<\/span> <a href=\"https:\/\/github.com\/AlexRadch\"><span data-contrast=\"none\">AlexRach<\/span><\/a><span data-contrast=\"auto\">\uff0c\u4ed6\u5728<\/span> <a href=\"https:\/\/github.com\/dotnet\/runtime\/pull\/88550\"><span data-contrast=\"none\">dotnet\/runtime#88614<\/span><\/a> <span data-contrast=\"auto\">\u4e2d\u5b9e\u73b0\u4e86\u8fd9\u4e00\u66f4\u6539<\/span><span data-contrast=\"auto\">\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<h3><b><span data-contrast=\"auto\">\u5957\u63a5\u5b57<\/span><\/b><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/h3>\n<p><span data-contrast=\"auto\">\u5957\u63a5\u5b57\u7a7a\u95f4\u4e2d\u5f71\u54cd\u6700\u5927\u7684\u66f4\u6539\u662f\u663e\u7740\u51cf\u5c11\u65e0\u8fde\u63a5<\/span><span data-contrast=\"auto\"> (UDP) <\/span><span data-contrast=\"auto\">\u5957\u63a5\u5b57\u7684\u5206\u914d<\/span><span data-contrast=\"auto\"> (<\/span><a href=\"https:\/\/github.com\/dotnet\/runtime\/issues\/30797\"><span data-contrast=\"auto\">dotnet\/runtime#<\/span><span data-contrast=\"none\">30797<\/span><\/a><span data-contrast=\"auto\">)\u3002 <\/span><span data-contrast=\"auto\">\u4f7f\u7528<\/span><span data-contrast=\"auto\"> UDP <\/span><span data-contrast=\"auto\">\u5957\u63a5\u5b57\u65f6\uff0c\u5206\u914d\u7684\u6700\u5927\u8d21\u732e\u8005\u4e4b\u4e00\u662f\u5728\u6bcf\u6b21\u8c03\u7528<\/span> <a href=\"https:\/\/learn.microsoft.com\/en-us\/dotnet\/api\/system.net.sockets.socket.receivefrom?view=net-8.0\"><span data-contrast=\"none\">Socket.ReceiveFrom<\/span><\/a> <span data-contrast=\"auto\">\u65f6\u5206\u914d\u4e00\u4e2a\u65b0\u7684<\/span><span data-contrast=\"auto\"><span style=\"color: #ff0000;\"> EndPoint<\/span> <\/span><span data-contrast=\"auto\">\u5bf9\u8c61\uff08\u5e76\u652f\u6301<\/span><span style=\"color: #ff0000;\" data-contrast=\"auto\"> IPAddress <\/span><span data-contrast=\"auto\">\u7b49\u5206\u914d\uff09\u3002<\/span> <span data-contrast=\"auto\">\u4e3a\u4e86\u7f13\u89e3\u8fd9\u4e2a\u95ee\u9898\uff0c\u5f15\u5165\u4e86\u4e00\u7ec4\u4f7f\u7528<\/span> <a href=\"https:\/\/learn.microsoft.com\/en-us\/dotnet\/api\/system.net.socketaddress?view=net-8.0\"><span data-contrast=\"none\">SocketAddress<\/span><\/a> <span data-contrast=\"auto\">\u7684\u65b0<\/span><span data-contrast=\"auto\"> API (<\/span><a href=\"https:\/\/github.com\/dotnet\/runtime\/issues\/87397\"><span data-contrast=\"auto\">dotnet\/runtime#<\/span><span data-contrast=\"none\">87397<\/span><\/a><span data-contrast=\"auto\">)\u3002 <span style=\"color: #ff0000;\">SocketAddress<\/span> <\/span><span data-contrast=\"auto\">\u5728\u5185\u90e8\u5c06<\/span><span data-contrast=\"auto\"> IP <\/span><span data-contrast=\"auto\">\u5730\u5740\u4fdd\u5b58\u4e3a\u5e73\u53f0\u76f8\u5173\u5f62\u5f0f\u7684\u5b57\u8282\u6570\u7ec4\uff0c\u4ee5\u4fbf\u53ef\u4ee5\u5c06\u5176\u76f4\u63a5\u4f20\u9012\u7ed9\u64cd\u4f5c\u7cfb\u7edf\u8c03\u7528\u3002<\/span> <span data-contrast=\"auto\">\u56e0\u6b64\uff0c\u5728\u8c03\u7528\u672c\u673a\u5957\u63a5\u5b57\u51fd\u6570\u4e4b\u524d\u4e0d\u9700\u8981\u590d\u5236<\/span><span data-contrast=\"auto\"> IP <\/span><span data-contrast=\"auto\">\u5730\u5740\u6570\u636e\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">\u6b64\u5916\uff0c\u65b0\u6dfb\u52a0\u7684<\/span><a href=\"https:\/\/learn.microsoft.com\/en-us\/dotnet\/api\/system.net.sockets.socket.receivefrom?view=net-8.0#system-net-sockets-socket-receivefrom(system-span((system-byte)\"><span data-contrast=\"none\">ReceiveFrom<\/span><\/a><span data-contrast=\"auto\">-system-net-sockets-socketflags-system-net-socketaddress))<\/span><span data-contrast=\"auto\">\u548c<\/span><a href=\"https:\/\/learn.microsoft.com\/en-us\/dotnet\/api\/system.net.sockets.socket.receivefromasync?view=net-8.0#system-net-sockets-socket-receivefromasync(system-memory((system-byte)\"><span data-contrast=\"none\">ReceiveFromAsync<\/span><\/a><span data-contrast=\"auto\">-system-net-sockets-socketflags-system-net-socketaddress-system-threading-cancellationtoken)) <\/span><span data-contrast=\"auto\">\u91cd\u8f7d\u4e0d\u4f1a\u5728\u6bcf\u6b21\u8c03\u7528\u65f6\u5b9e\u4f8b\u5316\u65b0\u7684<\/span><span style=\"color: #ff0000;\" data-contrast=\"auto\"> IPEndPoint<\/span><span data-contrast=\"auto\">\uff0c\u800c\u662f\u5728\u9002\u5f53\u7684\u4f4d\u7f6e\u6539\u53d8\u63d0\u4f9b\u7684<\/span><span style=\"color: #ff0000;\" data-contrast=\"auto\"> receiveAddress <\/span><span data-contrast=\"auto\">\u53c2\u6570\u3002<\/span> <span data-contrast=\"auto\">\u6240\u6709\u8fd9\u4e9b\u4e00\u8d77\u53ef\u4ee5\u7528\u6765\u63d0\u9ad8<\/span><span data-contrast=\"auto\"> UDP <\/span><span data-contrast=\"auto\">\u5957\u63a5\u5b57\u4ee3\u7801\u7684\u6548\u7387\uff1a<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<pre class=\"prettyprint language-default\"><code class=\"language-default\">\/\/ Same initialization code as before, no change here.\r\nSocket server = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);\r\nSocket client = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);\r\nbyte[] message = Encoding.UTF8.GetBytes(\"Hello world!\");\r\nbyte[] buffer = new byte[1024];\r\nIPEndPoint endpoint = new IPEndPoint(IPAddress.Loopback, 12345);\r\nserver.Bind(endpoint);\r\n\r\n\/\/ --------\r\n\/\/ Original code that would allocate IPEndPoint for each ReceiveFromAsync:\r\nTask&lt;SocketReceiveFromResult&gt; receiveTaskOrig = server.ReceiveFromAsync(buffer, SocketFlags.None, endpoint);\r\nawait client.SendToAsync(message, SocketFlags.None, endpoint);\r\nSocketReceiveFromResult resultOrig = await receiveTaskOrig;\r\n\r\nConsole.WriteLine(Encoding.UTF8.GetString(buffer, 0, result.ReceivedBytes) + \" from \" + result.RemoteEndPoint);\r\n\/\/ Prints:\r\n\/\/ Hello world! from 127.0.0.1:59769\r\n\r\n\/\/ --------\r\n\/\/ New variables that can be re-used for subsequent calls:\r\nSocketAddress receivedAddress = endpoint.Serialize();\r\nSocketAddress targetAddress = endpoint.Serialize();\r\n\r\n\/\/ New code that will mutate provided SocketAddress for each ReceiveFromAsync:\r\nValueTask&lt;int&gt; receiveTaskNew = server.ReceiveFromAsync(buffer, SocketFlags.None, receivedAddress);\r\nawait client.SendToAsync(message, SocketFlags.None, targetAddress);\r\nvar length = await receiveTaskNew;\r\n\r\nConsole.WriteLine(Encoding.UTF8.GetString(buffer, 0, length) + \" from \" + receivedAddress);\r\n\/\/ Prints:\r\n\/\/ Hello world! from InterNetwork:16:{233,121,127,0,0,1,0,0,0,0,0,0,0,0}<\/code><\/pre>\n<p><span data-contrast=\"auto\">\u6700\u91cd\u8981\u7684\u662f\uff0c\u5728<\/span> <a href=\"https:\/\/github.com\/dotnet\/runtime\/issues\/86872\"><span data-contrast=\"none\">dotnet\/runtime#86872<\/span><\/a> <span data-contrast=\"auto\">\u4e2d\u6539\u8fdb\u4e86<\/span><span data-contrast=\"auto\"><span style=\"color: #ff0000;\"> SocketAddress<\/span> <\/span><span data-contrast=\"auto\">\u7684\u4f7f\u7528\u3002<\/span><span style=\"color: #ff0000;\" data-contrast=\"auto\"> SocketAddress <\/span><span data-contrast=\"auto\">\u73b0\u5728\u6709\u51e0\u4e2a\u989d\u5916\u7684\u6210\u5458\uff0c\u4f7f\u5176\u672c\u8eab\u66f4\u6709\u7528\uff1a<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<ul>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"3\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:860,&quot;335559991&quot;:440,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"1\" data-aria-level=\"1\"><span data-contrast=\"auto\">getter <\/span><a href=\"https:\/\/learn.microsoft.com\/en-us\/dotnet\/api\/system.net.socketaddress.buffer?view=net-8.0\"><span data-contrast=\"none\">Buffer<\/span><\/a><span data-contrast=\"auto\">\uff1a\u8bbf\u95ee\u6574\u4e2a\u5e95\u5c42\u5730\u5740\u7f13\u51b2\u533a\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/li>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"3\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:860,&quot;335559991&quot;:440,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"2\" data-aria-level=\"1\"><span data-contrast=\"auto\">setter <\/span><a href=\"https:\/\/learn.microsoft.com\/en-us\/dotnet\/api\/system.net.socketaddress.size?view=net-8.0\"><span data-contrast=\"none\">Size<\/span><\/a><span data-contrast=\"auto\">\uff1a\u80fd\u591f\u8c03\u6574\u4e0a\u8ff0\u7f13\u51b2\u533a\u5927\u5c0f\uff08\u53ea\u80fd\u8c03\u6574\u5230\u8f83\u5c0f\u7684\u5c3a\u5bf8<\/span><span data-contrast=\"auto\">\uff09\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/li>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"3\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:860,&quot;335559991&quot;:440,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"3\" data-aria-level=\"1\"><span data-contrast=\"auto\">static <\/span><a href=\"https:\/\/learn.microsoft.com\/en-us\/dotnet\/api\/system.net.socketaddress.getmaximumaddresssize?view=net-8.0\"><span data-contrast=\"none\">GetMaximumAddressSize<\/span><\/a><span data-contrast=\"auto\">\uff1a\u6839\u636e\u5730\u5740\u7c7b\u578b\u83b7\u53d6\u6240\u9700\u7684\u7f13\u51b2\u533a\u5927\u5c0f\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/li>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"3\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:860,&quot;335559991&quot;:440,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"4\" data-aria-level=\"1\"><span data-contrast=\"auto\">\u63a5\u53e3<\/span> <a href=\"https:\/\/learn.microsoft.com\/en-us\/dotnet\/api\/system.net.socketaddress.equals?view=net-8.0#system-net-socketaddress-equals(system-net-socketaddress)\"><span data-contrast=\"auto\">IEquatable&lt;SocketAddress<\/span><span data-contrast=\"none\">&gt;<\/span><\/a><span data-contrast=\"auto\">\uff1a<span style=\"color: #ff0000;\">SocketAddress<\/span> <\/span><span data-contrast=\"auto\">\u53ef\u7528\u4e8e\u533a\u5206\u5957\u63a5\u5b57\u4e0e\u4e4b\u901a\u4fe1\u7684\u5bf9\u7b49\u70b9\uff0c\u4f8b\u5982\u4f5c\u4e3a\u5b57\u5178\u4e2d\u7684\u952e\uff08\u8fd9\u4e0d\u662f\u65b0\u529f\u80fd\uff0c\u5b83\u53ea\u662f\u4f7f\u5176\u53ef\u901a\u8fc7\u63a5\u53e3\u8c03\u7528\uff09\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/li>\n<\/ul>\n<p><span data-contrast=\"auto\">\u6700\u540e\uff0c\u5220\u9664\u4e86\u4e00\u4e9b\u5185\u90e8\u751f\u6210\u7684<\/span><span data-contrast=\"auto\"> IP <\/span><span data-contrast=\"auto\">\u5730\u5740\u6570\u636e\u526f\u672c\uff0c\u4ee5\u63d0\u9ad8\u6027\u80fd<\/span><span data-contrast=\"auto\">\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<h3><b><span data-contrast=\"auto\">Networking Primitives\u00a0<\/span><\/b><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/h3>\n<h4><b><span data-contrast=\"auto\">MIME <\/span><\/b><b><span data-contrast=\"auto\">\u7c7b\u578b<\/span><\/b><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/h4>\n<p><span data-contrast=\"auto\">\u6dfb\u52a0\u7f3a\u5931\u7684<\/span><span data-contrast=\"auto\"> MIME <\/span><span data-contrast=\"auto\">\u7c7b\u578b\u662f\u7f51\u7edc\u7a7a\u95f4\u4e2d\u6295\u7968\u6700\u591a\u7684\u95ee\u9898\u4e4b\u4e00<\/span><span data-contrast=\"auto\"> (<\/span><a href=\"https:\/\/github.com\/dotnet\/runtime\/issues\/1489\"><span data-contrast=\"auto\">dotnet\/runtime#<\/span><span data-contrast=\"none\">1489<\/span><\/a><span data-contrast=\"auto\">)\u3002 <\/span><span data-contrast=\"auto\">\u8fd9\u662f\u4e00\u4e2a\u4e3b\u8981\u7531\u793e\u533a\u9a71\u52a8\u7684\u66f4\u6539\uff0c\u6700\u7ec8\u5f62\u6210\u4e86<\/span> <a href=\"https:\/\/github.com\/dotnet\/runtime\/issues\/85807\"><span data-contrast=\"none\">dotnet\/runtime#85807 API<\/span><\/a> <span data-contrast=\"auto\">\u63d0\u6848\u3002<\/span> <span data-contrast=\"auto\">\u7531\u4e8e\u6b64\u6dfb\u52a0\u9700\u8981\u7ecf\u8fc7<\/span><span data-contrast=\"auto\"> API <\/span><span data-contrast=\"auto\">\u5ba1\u6838\u6d41\u7a0b\uff0c\u56e0\u6b64\u6709\u5fc5\u8981\u786e\u4fdd\u6dfb\u52a0\u7684\u7c7b\u578b\u662f\u76f8\u5173\u7684\u5e76\u9075\u5faa\u89c4\u8303\uff08<\/span><a href=\"https:\/\/www.iana.org\/assignments\/media-types\/media-types.xhtml\"><span data-contrast=\"auto\">IANA <\/span><span data-contrast=\"none\">\u5a92\u4f53\u7c7b\u578b<\/span><\/a><span data-contrast=\"auto\">\uff09\u3002 <\/span><span data-contrast=\"auto\">\u5bf9\u4e8e\u8fd9\u9879\u51c6\u5907\u5de5\u4f5c\uff0c\u6211\u4eec\u8981\u611f\u8c22\u793e\u533a\u8d21\u732e\u8005<\/span> <a href=\"https:\/\/github.com\/Bilal-io\"><span data-contrast=\"none\">Bilal-io<\/span><\/a> <span data-contrast=\"auto\">\u548c<\/span> <a href=\"https:\/\/github.com\/mmarinchenko\"><span data-contrast=\"none\">mmarinchenko<\/span><\/a><span data-contrast=\"auto\">\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<h4><b><span data-contrast=\"auto\">IPNetwork<\/span><\/b><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/h4>\n<p><span data-contrast=\"auto\">.NET 8 <\/span><span data-contrast=\"auto\">\u4e2d\u6dfb\u52a0\u7684\u53e6\u4e00\u4e2a\u65b0<\/span><span data-contrast=\"auto\"> API <\/span><span data-contrast=\"auto\">\u662f\u65b0\u7c7b\u578b<\/span><span data-contrast=\"auto\"><span style=\"color: #ff0000;\"> IPNetwork<\/span> (<\/span><a href=\"https:\/\/github.com\/dotnet\/runtime\/issues\/79946\"><span data-contrast=\"auto\">dotnet\/runtime#<\/span><span data-contrast=\"none\">79946<\/span><\/a><span data-contrast=\"auto\">)\u3002 <\/span><span data-contrast=\"auto\">\u8be5\u7ed3\u6784\u5141\u8bb8\u6307\u5b9a<\/span> <a href=\"https:\/\/datatracker.ietf.org\/doc\/html\/rfc4632\"><span data-contrast=\"none\">RFC 4632<\/span><\/a> <span data-contrast=\"auto\">\u4e2d\u5b9a\u4e49\u7684\u65e0\u7c7b<\/span><span data-contrast=\"auto\"> IP <\/span><span data-contrast=\"auto\">\u5b50\u7f51\u3002\u4f8b\u5982<\/span><span data-contrast=\"auto\">\uff1a<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<ul>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"2\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:860,&quot;335559991&quot;:440,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"1\" data-aria-level=\"1\"><span data-contrast=\"auto\"><span style=\"color: #ff0000;\">127.0.0.0\/8<\/span> <\/span><span data-contrast=\"auto\">\u7528\u4e8e\u4e0e<\/span><span data-contrast=\"auto\">A <\/span><span data-contrast=\"auto\">\u7c7b\u5b50\u7f51\u5bf9\u5e94\u7684\u65e0\u7c7b\u5b9a\u4e49\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/li>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"2\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:860,&quot;335559991&quot;:440,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"2\" data-aria-level=\"1\"><span style=\"color: #ff0000;\" data-contrast=\"auto\">42.42.128.0\/17 <\/span><span data-contrast=\"auto\">\u7528\u4e8e<\/span><span data-contrast=\"auto\"> 2<\/span><span data-contrast=\"auto\">15<\/span> <span data-contrast=\"auto\">\u4e2a\u5730\u5740\u7684\u65e0\u7c7b\u5b50\u7f51\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/li>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"2\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:860,&quot;335559991&quot;:440,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"3\" data-aria-level=\"1\"><span style=\"color: #ff0000;\" data-contrast=\"auto\">2a01:110:8012::\/100 <\/span><span data-contrast=\"auto\">\u7528\u4e8e<\/span><span data-contrast=\"auto\"> 2<\/span><span data-contrast=\"auto\">28<\/span> <span data-contrast=\"auto\">\u4e2a\u5730\u5740\u7684<\/span><span data-contrast=\"auto\"> IPv6 <\/span><span data-contrast=\"auto\">\u5b50\u7f51\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/li>\n<\/ul>\n<p><span data-contrast=\"auto\">\u65b0\u7684<\/span><span data-contrast=\"auto\"> API <\/span><span data-contrast=\"auto\">\u53ef\u4ee5\u4f7f\u7528<\/span><a href=\"https:\/\/learn.microsoft.com\/en-us\/dotnet\/api\/system.net.ipnetwork.-ctor?view=net-8.0#system-net-ipnetwork-ctor(system-net-ipaddress-system-int32)\"><span data-contrast=\"none\">\u6784\u9020\u51fd\u6570<\/span><\/a><span data-contrast=\"auto\">\u4ece<\/span><span style=\"color: #ff0000;\" data-contrast=\"auto\">IPAddress<\/span><span data-contrast=\"auto\">\u548c\u524d\u7f00\u957f\u5ea6\u8fdb\u884c\u6784\u9020\uff0c\u4e5f\u53ef\u4ee5\u901a\u8fc7<\/span> <a href=\"https:\/\/learn.microsoft.com\/en-us\/dotnet\/api\/system.net.ipnetwork.tryparse?view=net-8.0\"><span data-contrast=\"none\">TryParse<\/span><\/a> <span data-contrast=\"auto\">\u6216<\/span> <a href=\"https:\/\/learn.microsoft.com\/en-us\/dotnet\/api\/system.net.ipnetwork.parse?view=net-8.0\"><span data-contrast=\"none\">Parse<\/span><\/a> <span data-contrast=\"auto\">\u4ece\u5b57\u7b26\u4e32\u8fdb\u884c\u89e3\u6790\u3002<\/span> <span data-contrast=\"auto\">\u6700\u91cd\u8981\u7684\u662f\uff0c\u5b83\u5141\u8bb8\u4f7f\u7528<\/span> <a href=\"https:\/\/learn.microsoft.com\/en-us\/dotnet\/api\/system.net.ipnetwork.contains?view=net-8.0\"><span data-contrast=\"none\">Contains<\/span><\/a> <span data-contrast=\"auto\">\u65b9\u6cd5\u68c0\u67e5<\/span><span style=\"color: #ff0000;\" data-contrast=\"auto\"> IPAddress<\/span><span data-contrast=\"auto\">\u662f\u5426\u5c5e\u4e8e\u5b50\u7f51\u3002\u793a\u4f8b\u7528\u6cd5\u5982\u4e0b\uff1a<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<pre class=\"prettyprint language-default\"><code class=\"language-default\">\/\/ IPv4 with manual construction.\r\nIPNetwork ipNet = new IPNetwork(new IPAddress(new byte[] { 127, 0, 0, 0 }), 8);\r\nIPAddress ip1 = new IPAddress(new byte[] { 255, 0, 0, 1 });\r\nIPAddress ip2 = new IPAddress(new byte[] { 127, 0, 0, 10 });\r\nConsole.WriteLine($\"{ip1} {(ipNet.Contains(ip1) ? \"belongs\" : \"doesn't belong\")} to {ipNet}\");\r\nConsole.WriteLine($\"{ip2} {(ipNet.Contains(ip2) ? \"belongs\" : \"doesn't belong\")} to {ipNet}\");\r\n\/\/ Prints:\r\n\/\/ 255.0.0.1 doesn't belong to 127.0.0.0\/8\r\n\/\/ 127.0.0.10 belongs to 127.0.0.0\/8\r\n\r\n\/\/ IPv6 with parsing.\r\nIPNetwork ipNet = IPNetwork.Parse(\"2a01:110:8012::\/96\");\r\nIPAddress ip1 = IPAddress.Parse(\"2a01:110:8012::1742:4244\");\r\nIPAddress ip2 = IPAddress.Parse(\"2a01:110:8012:1010:914e:2451:16ff:ffff\");\r\nConsole.WriteLine($\"{ip1} {(ipNet.Contains(ip1) ? \"belongs\" : \"doesn't belong\")} to {ipNet}\");\r\nConsole.WriteLine($\"{ip2} {(ipNet.Contains(ip2) ? \"belongs\" : \"doesn't belong\")} to {ipNet}\");\r\n\/\/ Prints:\r\n\/\/ 2a01:110:8012::1742:4244 belongs to 2a01:110:8012::\/96\r\n\/\/ 2a01:110:8012:1010:914e:2451:16ff:ffff doesn't belong to 2a01:110:8012::\/96<\/code><\/pre>\n<p><span data-contrast=\"auto\">\u8bf7\u6ce8\u610f\uff0c\u4e0d\u8981\u5c06\u6b64\u7c7b\u578b\u4e0e\u81ea<\/span><span data-contrast=\"auto\"> 1.0 <\/span><span data-contrast=\"auto\">\u4ee5\u6765<\/span><span data-contrast=\"auto\"> ASP.NET Core <\/span><span data-contrast=\"auto\">\u4e2d\u5b58\u5728\u7684<\/span><b><span data-contrast=\"auto\">\u00a0<\/span><\/b><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<p><a href=\"https:\/\/learn.microsoft.com\/en-us\/dotnet\/api\/microsoft.aspnetcore.httpoverrides.ipnetwork?view=aspnetcore-8.0\"><span data-contrast=\"none\">Microsoft.AspNetCore.HttpOverrides.IPNetwork<\/span><\/a> <span data-contrast=\"auto\">\u7c7b\u6df7\u6dc6\u3002\u6211\u4eec\u9884\u8ba1<\/span><span data-contrast=\"auto\"> ASP.NET API <\/span><span data-contrast=\"auto\">\u6700\u7ec8\u5c06\u8fc1\u79fb\u5230\u65b0\u7684<\/span><span style=\"color: #ff0000;\" data-contrast=\"auto\"> System.Net.IPNetwork <\/span><span data-contrast=\"auto\">\u7c7b\u578b<\/span><span data-contrast=\"auto\"> (<\/span><a href=\"https:\/\/github.com\/dotnet\/aspnetcore\/issues\/46157\"><span data-contrast=\"auto\">dotnet\/aspnetcore#<\/span><span data-contrast=\"none\">46157<\/span><\/a><span data-contrast=\"auto\">)\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<h3><b><span data-contrast=\"auto\">\u6700\u540e\u8bf4\u660e<\/span><\/b><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/h3>\n<p><span data-contrast=\"auto\">\u672c\u6587\u9009\u62e9\u7684\u4e3b\u9898\u5e76\u4e0d\u662f<\/span><span data-contrast=\"auto\"> .NET 8 <\/span><span data-contrast=\"auto\">\u4e2d\u6240\u6709\u66f4\u6539\u7684\u8be6\u5c3d\u5217\u8868\uff0c\u53ea\u662f\u6211\u4eec\u8ba4\u4e3a\u6700\u6709\u8da3\u7684\u5185\u5bb9\u3002\u5982\u679c\u60a8\u5bf9\u6027\u80fd\u6539\u8fdb\u66f4\u611f\u5174\u8da3\uff0c\u60a8\u53ef\u4ee5\u67e5\u770b<\/span><span data-contrast=\"auto\">Stephen <\/span><span data-contrast=\"auto\">\u7684\u5927\u578b\u6027\u80fd\u535a\u5ba2\u6587\u7ae0\u4e2d\u7684<\/span><a href=\"https:\/\/devblogs.microsoft.com\/dotnet\/performance-improvements-in-net-8\/#networking\"><span data-contrast=\"none\">\u7f51\u7edc\u90e8\u5206<\/span><\/a><span data-contrast=\"auto\">\u3002\u5982\u679c\u60a8\u6709\u4efb\u4f55\u7591\u95ee\u6216\u53d1\u73b0\u4efb\u4f55\u9519\u8bef\uff0c\u53ef\u4ee5\u5728<\/span><a href=\"https:\/\/github.com\/dotnet\/runtime\/issues\"><span data-contrast=\"auto\">dotnet\/runtime<\/span><span data-contrast=\"none\">\u5b58\u50a8\u5e93<\/span><\/a><span data-contrast=\"auto\">\u4e2d\u4e0e\u6211\u4eec\u8054\u7cfb\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">\u6700\u540e\uff0c\u6211\u8981\u611f\u8c22\u6211\u7684\u5408\u8457\u8005\uff1a<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<ul>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"1\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:860,&quot;335559991&quot;:440,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"1\" data-aria-level=\"1\"><a href=\"https:\/\/devblogs.microsoft.com\/dotnet\/dotnet-8-networking-improvements\/#metrics\"><span data-contrast=\"none\">Metrics<\/span><\/a><span data-contrast=\"auto\">\u7684\u4f5c\u8005\uff1a<\/span><span data-contrast=\"auto\">@<\/span><a href=\"https:\/\/github.com\/antonfirsov\"><span data-contrast=\"none\">antonfirsov<\/span><\/a><span data-contrast=\"auto\">\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/li>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"1\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:860,&quot;335559991&quot;:440,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"2\" data-aria-level=\"1\"><a 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