HttpClient\u7c7b<\/strong> \u63d0\u4f9b\u4e86\u4e00\u7cfb\u5217\u5f02\u6b65\u64cd\u4f5c\u6765\u53d1\u9001HTTP\u8bf7\u6c42\u548c\u63a5\u6536\u54cd\u5e94\u3002\u8fd9\u4e9b\u65b9\u6cd5\u901a\u5e38\u4ee5Async\u7ed3\u5c3e\uff0c\u5e76\u8fd4\u56de\u4e00\u4e2aTask\u6216Task\u3002Task\u662f.NET\u4e2d\u4ee3\u8868\u5f02\u6b65\u64cd\u4f5c\u7684\u5bf9\u8c61\u3002<\/p>\n<\/p>\n\u53d1\u9001\u5f02\u6b65\u8bf7\u6c42<\/h4>\n<\/p>\n
\u901a\u8fc7\u4f7f\u7528HttpClient\u7c7b\u63d0\u4f9b\u7684\u5f02\u6b65\u65b9\u6cd5\uff0c\u4f8b\u5982GetAsync\u3001PostAsync\u7b49\uff0c\u53ef\u4ee5\u975e\u5e38\u5bb9\u6613\u5730\u8fdb\u884c\u7f51\u7edc\u8bf7\u6c42\u3002\u4f8b\u5982\uff0c\u4f7f\u7528GetAsync\u65b9\u6cd5\u83b7\u53d6\u4e00\u4e2a\u7f51\u9875\u7684\u6570\u636e\u65f6\uff0c\u5b83\u4f1a\u8fd4\u56de\u4e00\u4e2aTask\u3002<\/p>\n<\/p>\n
\u5904\u7406\u5f02\u6b65\u54cd\u5e94<\/h4>\n<\/p>\n
\u5728\u8bf7\u6c42\u5b8c\u6210\u540e\uff0c\u9700\u8981\u5904\u7406\u8fd4\u56de\u7684HttpResponseMessage\u3002\u901a\u8fc7\u8c03\u7528\u5b83\u7684Content\u5c5e\u6027\u53ef\u4ee5\u83b7\u53d6HttpContent\uff0c\u8fdb\u800c\u901a\u8fc7ReadAsStringAsync\u65b9\u6cd5\u5f02\u6b65\u7684\u8bfb\u53d6\u54cd\u5e94\u4f53\u3002<\/p>\n<\/p>\n
\u4e09\u3001\u5f02\u5e38\u5904\u7406\u4e0e\u4efb\u52a1\u53d6\u6d88<\/h3>\n<\/p>\n
\u5728\u8fdb\u884c\u5f02\u6b65\u8bf7\u6c42\u65f6\uff0c\u5f88\u53ef\u80fd\u4f1a\u51fa\u73b0\u7f51\u7edc\u9519\u8bef\u3001\u670d\u52a1\u8d85\u65f6\u7b49\u5f02\u5e38\u60c5\u51b5\u3002\u6b63\u786e\u5904\u7406\u5f02\u6b65\u64cd\u4f5c\u4e2d\u7684\u5f02\u5e38\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002<\/p>\n<\/p>\n
\u5f02\u5e38\u5904\u7406<\/h4>\n<\/p>\n
\u4f7f\u7528try-catch\u8bed\u53e5\u5305\u56f4\u53ef\u80fd\u4f1a\u4ea7\u751f\u5f02\u5e38\u7684await\u8c03\u7528\u3002\u8fd9\u6837\u53ef\u4ee5\u6355\u83b7\u5230\u5728\u5f02\u6b65\u8bf7\u6c42\u8fc7\u7a0b\u4e2d\u53d1\u751f\u7684AggregateException\u6216HttpRequestException\u7b49\u3002<\/p>\n<\/p>\n
\u4efb\u52a1\u53d6\u6d88<\/h4>\n<\/p>\n
\u901a\u8fc7CancellationTokenSource\u548cCancellationToken\u53ef\u4ee5\u63a7\u5236\u5f02\u6b65\u4efb\u52a1\u7684\u53d6\u6d88\u3002\u5f53\u8c03\u7528CancellationTokenSource\u7684Cancel\u65b9\u6cd5\u65f6\uff0c\u6240\u6709\u4f7f\u7528\u8be5CancellationToken\u7684\u5f02\u6b65\u4efb\u52a1\u90fd\u4f1a\u6536\u5230\u53d6\u6d88\u7684\u901a\u77e5\u3002<\/p>\n<\/p>\n
\u56db\u3001\u5f02\u6b65\u6d41\u7684\u4f7f\u7528<\/h3>\n<\/p>\n
.NET Core 3.0 \u5f15\u5165\u7684IAsyncEnumerable\u63a5\u53e3\u8ba9\u6211\u4eec\u53ef\u4ee5\u4ee5\u5f02\u6b65\u7684\u65b9\u5f0f\u5904\u7406\u6570\u636e\u6d41\u3002\u5f53\u9700\u8981\u5904\u7406\u7684\u6570\u636e\u662f\u5206\u6279\u4ea7\u751f\u7684\uff0c\u6bd4\u5982\u4ece\u7f51\u7edc\u9010\u6e10\u63a5\u6536\u6570\u636e\u65f6\uff0c\u4f7f\u7528\u5f02\u6b65\u6d41\u53ef\u4ee5\u63d0\u9ad8\u7a0b\u5e8f\u7684\u54cd\u5e94\u6027\u548c\u541e\u5410\u91cf\u3002<\/p>\n<\/p>\n
\u5f02\u6b65\u6d41\u7684\u521b\u5efa<\/h4>\n<\/p>\n
\u5f02\u6b65\u6d41\u662f\u901a\u8fc7\u7f16\u5199\u4e00\u4e2a\u8fd4\u56deIAsyncEnumerable\u7684\u5f02\u6b65\u8fed\u4ee3\u5668\u65b9\u6cd5\u6765\u521b\u5efa\u7684\u3002\u5728\u8fd9\u4e2a\u65b9\u6cd5\u5185\u90e8\uff0c\u53ef\u4ee5\u4f7f\u7528yield return\u8bed\u53e5\u6765\u4ea7\u751f\u503c\u3002<\/p>\n<\/p>\n
\u5f02\u6b65\u6d41\u7684\u6d88\u8d39<\/h4>\n<\/p>\n
\u6d88\u8d39\u5f02\u6b65\u6d41\u5219\u662f\u901a\u8fc7await foreach\u8bed\u53e5\u6765\u8fdb\u884c\u7684\u3002\u8fd9\u4e2a\u8bed\u53e5\u5141\u8bb8\u7b49\u5f85\u6bcf\u4e2a\u5f02\u6b65\u64cd\u4f5c\u5b8c\u6210\u5e76\u5728\u6b64\u671f\u95f4\u91ca\u653e\u7ebf\u7a0b\uff0c\u4ece\u800c\u5728\u63a5\u6536\u6570\u636e\u65f6\u4e0d\u4f1a\u963b\u585e\u3002<\/p>\n<\/p>\n
\u4e94\u3001\u5b9e\u9645\u5e94\u7528\u6848\u4f8b<\/h3>\n<\/p>\n
\u5c06\u4ee5\u4e0a\u6280\u672f\u70b9\u5e94\u7528\u4e8e\u5b9e\u9645\u573a\u666f\uff0c\u53ef\u4ee5\u6781\u5927\u5730\u63d0\u9ad8\u7a0b\u5e8f\u5904\u7406API\u8bf7\u6c42\u7684\u6548\u7387\u548c\u7528\u6237\u4f53\u9a8c\u3002\u63a5\u4e0b\u6765\u7684\u90e8\u5206\u5c06\u901a\u8fc7\u4e00\u4e9b\u5b9e\u9645\u7684\u6848\u4f8b\u6765\u8bf4\u660e\u8fd9\u4e9b\u6280\u672f\u5982\u4f55\u5177\u4f53\u5e94\u7528\u3002<\/p>\n<\/p>\n
API\u5ba2\u6237\u7aef\u8bbe\u8ba1<\/h4>\n<\/p>\n
\u8bbe\u8ba1\u826f\u597d\u7684API\u5ba2\u6237\u7aef\u5c06\u5c01\u88c5\u5f02\u6b65\u8bf7\u6c42\u7684\u7ec6\u8282\uff0c\u5bf9\u5916\u63d0\u4f9b\u7b80\u6d01\u7684\u5f02\u6b65\u63a5\u53e3\u3002\u8fd9\u6837\uff0c\u8c03\u7528\u8005\u53ea\u9700\u5173\u6ce8\u4e1a\u52a1\u903b\u8f91\u3002<\/p>\n<\/p>\n
\u5f02\u6b65\u6570\u636e\u7ed1\u5b9a<\/h4>\n<\/p>\n
\u5728\u7528\u6237\u754c\u9762(UI)\u7f16\u7a0b\u4e2d\uff0c\u5f02\u6b65\u6570\u636e\u7ed1\u5b9a\u53ef\u4ee5\u5728\u4e0d\u51bb\u7ed3UI\u7684\u60c5\u51b5\u4e0b\u4ece\u8fdc\u7a0bAPI\u52a0\u8f7d\u6570\u636e\u3002<\/p>\n<\/p>\n
\u516d\u3001\u6027\u80fd\u4f18\u5316<\/h3>\n<\/p>\n
\u901a\u8fc7\u5408\u7406\u4f7f\u7528\u5f02\u6b65\u8bf7\u6c42\u548c\u54cd\u5e94\uff0c\u6211\u4eec\u53ef\u4ee5\u5bf9\u7a0b\u5e8f\u6027\u80fd\u8fdb\u884c\u4f18\u5316\u3002\u8fd9\u5305\u62ec\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u7b49\u5f85\u3001\u9002\u5f53\u5730\u4f7f\u7528\u5e76\u53d1\u4ee5\u53ca\u5408\u7406\u8c03\u5ea6\u4efb\u52a1\u3002<\/p>\n<\/p>\n
\u907f\u514d\u7ebf\u7a0b\u6c60\u8017\u5c3d<\/h4>\n<\/p>\n
\u5728\u5927\u91cf\u5e76\u53d1\u8bf7\u6c42\u7684\u573a\u666f\u4e0b\uff0c\u6b63\u786e\u4f7f\u7528\u5f02\u6b65\u64cd\u4f5c\u53ef\u4ee5\u907f\u514d\u963b\u585e\u7ebf\u7a0b\u6c60\u4e2d\u7684\u7ebf\u7a0b\uff0c\u4ece\u800c\u63d0\u9ad8\u6574\u4f53\u7a0b\u5e8f\u7684\u541e\u5410\u91cf\u3002<\/p>\n<\/p>\n
\u4efb\u52a1\u8c03\u5ea6\u4e0e\u4f18\u5148\u7ea7<\/h4>\n<\/p>\n
C#\u5f02\u6b65\u7f16\u7a0b\u6a21\u578b\u63d0\u4f9b\u4e86\u4efb\u52a1\u8c03\u5ea6\u5668TaskScheduler\uff0c\u5141\u8bb8\u5f00\u53d1\u8005\u6307\u5b9a\u4efb\u52a1\u5e94\u8be5\u5728\u54ea\u4e2a\u7ebf\u7a0b\u4e0a\u4e0b\u6587\u6267\u884c\u548c\u5176\u6267\u884c\u4f18\u5148\u7ea7\u3002<\/p>\n<\/p>\n
\u901a\u8fc7\u5206\u6790\u4ee5\u4e0a\u5404\u4e2a\u65b9\u9762\uff0c\u6211\u4eec\u53ef\u4ee5\u770b\u5230C#\u4e2d\u5904\u7406API\u5f02\u6b65\u8bf7\u6c42\u662f\u4e00\u9879\u96c6\u591a\u4e2a\u5173\u952e\u6280\u672f\u8981\u70b9\u4e8e\u4e00\u8eab\u7684\u5de5\u4f5c\uff0c\u9700\u8981\u5f00\u53d1\u8005\u6709\u826f\u597d\u7684\u5f02\u6b65\u7f16\u7a0b\u57fa\u7840\u548c\u5b9e\u8df5\u7ecf\u9a8c\u3002\u901a\u8fc7\u5408\u7406\u5e94\u7528\u8fd9\u4e9b\u6280\u672f\u8981\u70b9\uff0c\u53ef\u4ee5\u5927\u5e45\u63d0\u5347\u8f6f\u4ef6\u7684\u6027\u80fd\u548c\u7528\u6237\u4f53\u9a8c\u3002<\/p>\n<\/p>\n
\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n1. C#\u4e2d\u5982\u4f55\u4f7f\u7528\u5f02\u6b65\u65b9\u6cd5\u5904\u7406API\u8bf7\u6c42\uff1f<\/strong>
\n\u4f7f\u7528\u5f02\u6b65\u65b9\u6cd5\u5904\u7406API\u8bf7\u6c42\u53ef\u4ee5\u63d0\u9ad8\u6027\u80fd\u548c\u54cd\u5e94\u901f\u5ea6\u3002\u60a8\u53ef\u4ee5\u5728C#\u4e2d\u4f7f\u7528async\u548cawait\u5173\u952e\u5b57\u6765\u5b9e\u73b0\u5f02\u6b65\u7f16\u7a0b\u3002\u4f7f\u7528HttpClient\u7c7b\u53d1\u9001API\u8bf7\u6c42\uff0c\u5e76\u4f7f\u7528async\u4fee\u9970\u7b26\u5c06\u65b9\u6cd5\u58f0\u660e\u4e3a\u5f02\u6b65\u65b9\u6cd5\u3002\u4f7f\u7528await\u5173\u952e\u5b57\u7b49\u5f85API\u54cd\u5e94\uff0c\u5e76\u4ee5\u5f02\u6b65\u65b9\u5f0f\u5904\u7406\u7ed3\u679c\u3002<\/p>\n2. \u5f02\u6b65\u65b9\u6cd5\u548c\u540c\u6b65\u65b9\u6cd5\u76f8\u6bd4\u6709\u54ea\u4e9b\u4f18\u52bf\uff1f<\/strong>
\n\u5f02\u6b65\u65b9\u6cd5\u53ef\u4ee5\u5728\u53d1\u9001API\u8bf7\u6c42\u65f6\u4e0d\u963b\u585e\u4e3b\u7ebf\u7a0b\uff0c\u4ece\u800c\u63d0\u9ad8\u5e94\u7528\u7a0b\u5e8f\u7684\u603b\u4f53\u6027\u80fd\u548c\u54cd\u5e94\u901f\u5ea6\u3002\u5f53\u6267\u884c\u8017\u65f6\u64cd\u4f5c\uff08\u6bd4\u5982\u4ece\u8fdc\u7a0b\u670d\u52a1\u5668\u83b7\u53d6\u6570\u636e\uff09\u65f6\uff0c\u5f02\u6b65\u65b9\u6cd5\u53ef\u4ee5\u5c06\u5176\u7f6e\u4e8e\u540e\u53f0\uff0c\u5e76\u7ee7\u7eed\u6267\u884c\u5176\u4ed6\u4efb\u52a1\u3002\u8fd9\u6837\u53ef\u4ee5\u63d0\u9ad8\u5e94\u7528\u7a0b\u5e8f\u7684\u5e76\u53d1\u6027\u80fd\uff0c\u4f7f\u7528\u6237\u5728\u6570\u636e\u52a0\u8f7d\u671f\u95f4\u4ecd\u80fd\u8fdb\u884c\u5176\u4ed6\u4ea4\u4e92\u3002<\/p>\n3. \u5982\u4f55\u5904\u7406\u5f02\u6b65\u65b9\u6cd5\u7684\u5f02\u5e38\uff1f<\/strong>
\n\u5728\u5904\u7406\u5f02\u6b65\u65b9\u6cd5\u65f6\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528try-catch\u8bed\u53e5\u6355\u83b7\u548c\u5904\u7406\u53ef\u80fd\u51fa\u73b0\u7684\u5f02\u5e38\u3002\u53ef\u4ee5\u4f7f\u7528await\u5173\u952e\u5b57\u6267\u884cAPI\u8bf7\u6c42\uff0c\u5e76\u5728try\u5757\u4e2d\u5904\u7406\u54cd\u5e94\u3002\u5982\u679c\u5728\u5f02\u6b65\u65b9\u6cd5\u4e2d\u51fa\u73b0\u5f02\u5e38\uff0c\u53ef\u4ee5\u5728catch\u5757\u4e2d\u6355\u83b7\u5e76\u8fdb\u884c\u9002\u5f53\u7684\u5904\u7406\uff0c\u4f8b\u5982\u8bb0\u5f55\u9519\u8bef\u65e5\u5fd7\u6216\u5411\u7528\u6237\u663e\u793a\u9519\u8bef\u4fe1\u606f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5728C#\u4e2d\u5904\u7406API\u5f02\u6b65\u8bf7\u6c42\u7684\u5173\u952e\u5305\u62ec\u5229\u7528async\u548cawAIt\u5173\u952e\u5b57\u3001\u4f7f\u7528HttpClient\u7c7b\u3001\u5904\u7406\u5f02\u5e38\u3001\u4ee5 […]","protected":false},"author":3,"featured_media":98676,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/98674"}],"collection":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=98674"}],"version-history":[{"count":0,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/98674\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/98676"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=98674"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=98674"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=98674"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
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<\/p>\n