{"id":7293,"date":"2024-05-10T17:49:03","date_gmt":"2024-05-10T09:49:03","guid":{"rendered":"https:\/\/i007.vip:15443\/wordpress\/?p=7293"},"modified":"2024-05-10T17:49:03","modified_gmt":"2024-05-10T09:49:03","slug":"%e7%94%a8asp-net-core-2-0-%e5%bb%ba%e7%ab%8b%e8%a7%84%e8%8c%83%e7%9a%84-rest-api","status":"publish","type":"post","link":"https:\/\/i007.cc\/wordpress\/archives\/7293","title":{"rendered":"\u7528ASP.NET Core 2.0 \u5efa\u7acb\u89c4\u8303\u7684 REST API"},"content":{"rendered":"<p><a href=\"https:\/\/www.cnblogs.com\/zhizhijiao\/p\/9022865.html\">cc from<\/a><\/p>\n<h1>\u4ec0\u4e48\u662fREST<\/h1>\n<p>REST \u662f Representational State Transfer \u7684\u7f29\u5199. \u5b83\u662f\u4e00\u79cd\u67b6\u6784\u7684\u98ce\u683c, \u8fd9\u79cd\u98ce\u683c\u57fa\u4e8e\u4e00\u5957\u9884\u5b9a\u4e49\u7684\u89c4\u5219, \u8fd9\u4e9b\u89c4\u5219\u63cf\u8ff0\u4e86\u7f51\u7edc\u8d44\u6e90\u662f\u5982\u4f55\u5b9a\u4e49\u548c\u5bfb\u5740\u7684.<\/p>\n<p>\u4e00\u4e2a\u5b9e\u73b0\u4e86REST\u8fd9\u4e9b\u89c4\u5219\u7684\u670d\u52a1\u5c31\u53eb\u505aRESTful\u7684\u670d\u52a1.<\/p>\n<p>\u6700\u65e9\u662f\u7531Roy Fielding\u63d0\u51fa\u7684.<\/p>\n<h1>RPC \u98ce\u683c<\/h1>\n<div class=\"cnblogs_code\">\n<pre>\/getUsers\r\n\/getUser?id=1\r\n\/createUser\r\n\/deleteUser?id=4\r\n\/updateUser?name=dave<\/pre>\n<\/div>\n<p>&nbsp;<\/p>\n<p>\u4e0a\u9762\u8fd9\u4e9b\u8282\u70b9\u662f\u9488\u5bf9User\u7684CRUD\u64cd\u4f5c.<\/p>\n<p>\u8fd9\u79cd\u6837\u5f0f\u98ce\u683c\u7684web\u670d\u52a1\u66f4\u503e\u5411\u4e8e\u53eb\u505aRPC\u98ce\u683c\u7684\u670d\u52a1.<\/p>\n<p>\u5728RPC\u7684\u4e16\u754c\u91cc, \u8282\u70b9\u4ec5\u4ec5\u5c31\u662f\u53ef\u4ee5\u5728\u8fdc\u7a0b\u88ab\u89e6\u53d1\u7684\u51fd\u6570, \u800c\u5728REST\u7684\u4e16\u754c\u91cc, \u8282\u70b9\u5c31\u662f\u5b9e\u4f53, \u4e5f\u53eb\u505a\u8d44\u6e90.<\/p>\n<h1>REST\u7684\u539f\u5219\/\u7ea6\u675f<\/h1>\n<p>REST\u67096\u5927\u539f\u5219\/\u7ea6\u675f, \u6bcf\u4e00\u4e2a\u539f\u5219\u90fd\u662f\u5bf9API\u6709\u6b63\u9762\u6216\u8d1f\u9762\u5f71\u54cd\u7684\u8bbe\u8ba1\u51b3\u5b9a.<\/p>\n<p>RESTful API \u6700\u5173\u5fc3\u7684\u6709\u8fd9\u51e0\u65b9\u9762:\u00a0<strong>\u6027\u80fd, \u53ef\u6269\u5c55\u6027, \u7b80\u6d01\u6027, \u4e92\u64cd\u4f5c\u6027, \u901a\u8baf\u53ef\u89c1\u6027, \u7ec4\u4ef6\u4fbf\u643a\u6027\u548c\u53ef\u9760\u6027<\/strong>.<\/p>\n<p>\u8fd9\u4e9b\u65b9\u9762\u88ab\u5c01\u88c5\u5728REST\u76846\u4e2a\u539f\u5219\u91cc, \u5b83\u4eec\u662f:<\/p>\n<p>1.\u00a0<strong>\u5ba2\u670d\u7aef-\u670d\u52a1\u7aef\u7ea6\u675f<\/strong>: \u5ba2\u6237\u7aef\u548c\u670d\u52a1\u7aef\u662f\u5206\u79bb\u7684, \u5b83\u4eec\u53ef\u4ee5\u72ec\u81ea\u7684\u8fdb\u5316.<\/p>\n<p>2.\u00a0<strong>\u65e0\u72b6\u6001<\/strong>: \u5ba2\u6237\u7aef\u548c\u670d\u52a1\u6bb5\u7684\u901a\u4fe1\u5fc5\u987b\u662f\u65e0\u72b6\u6001\u7684, \u72b6\u6001\u5e94\u5305\u542b\u5728\u8bf7\u6c42\u91cc\u7684. \u4e5f\u5c31\u662f\u8bf4\u8bf7\u6c42\u91cc\u8981\u5305\u542b\u670d\u52a1\u7aef\u9700\u8981\u7684\u6240\u6709\u7684\u4fe1\u606f, \u4ee5\u4fbf\u670d\u52a1\u7aef\u53ef\u4ee5\u7406\u89e3\u8bf7\u6c42\u5e76\u53ef\u4ee5\u521b\u9020\u4e0a\u4e0b\u6587.<\/p>\n<p>3.\u00a0<strong>\u5206\u5c42\u7cfb\u7edf<\/strong>: \u5c31\u50cf\u5176\u5b83\u7684\u8f6f\u4ef6\u67b6\u6784\u4e00\u6837, REST\u4e5f\u9700\u8981\u5206\u5c42\u7ed3\u6784, \u4f46\u662f\u4e0d\u5141\u8bb8\u67d0\u5c42\u76f4\u63a5\u8bbf\u95ee\u4e0d\u76f8\u90bb\u7684\u5c42.<\/p>\n<p>4.\u00a0<strong>\u7edf\u4e00\u63a5\u53e3<\/strong>: \u8fd9\u91cc\u5206\u4e3a4\u70b9, \u4ed6\u4eec\u662f: \u8d44\u6e90\u6807\u8bc6\u7b26(URI), \u8d44\u6e90\u7684\u64cd\u4f5c(\u4e5f\u5c31\u662f\u65b9\u6cd5Method, HTTP\u52a8\u8bcd), \u81ea\u63cf\u8ff0\u7684\u54cd\u5e94(\u53ef\u4ee5\u8ba4\u4e3a\u662f\u5a92\u4f53\u7c7b\u578bMedia-Type), \u4ee5\u53ca\u72b6\u6001\u7ba1\u7406(<strong>\u8d85\u5a92\u4f53\u4f5c\u4e3a\u5e94\u7528\u72b6\u6001\u7684\u5f15\u64ce HATEOAS<\/strong>, Hypermedia as the Engine of Application State).<\/p>\n<p>5.\u00a0<strong>\u7f13\u5b58<\/strong>: \u7f13\u5b58\u7ea6\u675f\u6d3e\u751f\u4e8e\u65e0\u72b6\u6001\u7ea6\u675f, \u5b83\u8981\u6c42\u4ece\u670d\u52a1\u7aef\u8fd4\u56de\u7684\u54cd\u5e94\u5fc5\u987b\u660e\u786e\u8868\u660e\u662f\u53ef\u7f13\u5b58\u7684\u8fd8\u662f\u4e0d\u53ef\u7f13\u5b58\u7684.<\/p>\n<p>6.\u00a0<strong>\u6309\u9700\u7f16\u7801<\/strong>: \u8fd9\u5141\u8bb8\u5ba2\u6237\u7aef\u53ef\u4ee5\u4ece\u670d\u52a1\u7aef\u8bbf\u95ee\u7279\u5b9a\u7684\u8d44\u6e90\u800c\u65e0\u987b\u77e5\u6653\u5982\u4f55\u5904\u7406\u5b83\u4eec. \u670d\u52a1\u7aef\u53ef\u4ee5\u6269\u5c55\u6216\u81ea\u5b9a\u4e49\u5ba2\u6237\u7aef\u7684\u529f\u80fd.<\/p>\n<p>\u53ea\u6709\u6ee1\u8db3\u4e86\u8fd96\u4e2a\u539f\u5219\u7684\u7cfb\u7edf\u624d\u53ef\u4ee5\u771f\u6b63\u79f0\u5f97\u4e0a\u662fRESTful\u7684, \u5176\u5b9e\u5927\u90e8\u5206\u7cfb\u7edf\u7684RESTful API\u5e76\u4e0d\u662fRESTful\u7684, \u4f46\u8fd9\u6837\u5e76\u4e0d\u4ee3\u8868\u8fd9\u4e9bAPI\u5c31\u4e0d\u597d, \u5229\u5f0a\u9700\u8981\u5f00\u53d1\u4eba\u5458\u53bb\u8861\u91cf.<\/p>\n<h1>Richardson \u6210\u719f\u5ea6\u6a21\u578b<\/h1>\n<p>Richardson \u6210\u719f\u5ea6\u6a21\u578b\u4ee3\u8868\u7740\u4f60\u7684API\u662f\u5426\u8db3\u591f\u6210\u719f, \u5206\u4e3a4\u4e2a\u7ea7\u522b, 0\u4ee3\u8868\u6700\u5dee, 3\u4ee3\u8868\u6700\u597d.<\/p>\n<p><strong>0\u7ea7, \u5929\u82b1\u6cbc\u6cfd<\/strong>:<\/p>\n<p>\u8fd9\u91ccHTTP\u534f\u8bae\u53ea\u662f\u88ab\u7528\u6765\u8fdb\u884c\u8fdc\u7a0b\u4ea4\u4e92, \u534f\u8bae\u7684\u5176\u4f59\u90e8\u5206\u90fd\u7528\u9519\u4e86, \u90fd\u662fRPC\u98ce\u683c\u7684\u5b9e\u73b0(\u4f8b\u5982SOAP, \u5c24\u5176\u662f\u4f7f\u7528WCF\u7684\u65f6\u5019).<\/p>\n<p>\u4f8b\u5982:<\/p>\n<div class=\"cnblogs_code\">\n<pre>POST (\u67e5\u8be2\u6570\u636e\u4fe1\u606f)\r\nhttp:\/\/host\/myapi\r\n\r\nPOST (\u521b\u5efa\u6570\u636e)\r\nhttp:\/\/host\/myapi<\/pre>\n<\/div>\n<p>&nbsp;<\/p>\n<p><strong>1\u7ea7, \u8d44\u6e90<\/strong>:<\/p>\n<p>\u8fd9\u7ea7\u91cc, \u6bcf\u4e2a\u8d44\u6e90\u90fd\u6620\u5c04\u5230\u4e00\u4e2aURI\u4e0a\u4e86, \u4f46\u662fHTTP\u65b9\u6cd5\u5e76\u6ca1\u6709\u6b63\u786e\u7684\u4f7f\u7528, \u7ed3\u679c\u7684\u590d\u6742\u5ea6\u4e0d\u7b97\u592a\u9ad8.<\/p>\n<p>\u4f8b\u5982\u8fd9\u4e24\u4e2a\u67e5\u8be2:<\/p>\n<div class=\"cnblogs_code\">\n<pre>POST\r\nhttp:\/\/host\/api\/authors\r\nPOST\r\nhttp:\/\/host\/api\/authors\/{id}<\/pre>\n<\/div>\n<p>&nbsp;<\/p>\n<p><strong>2\u7ea7, \u52a8\u8bcd<\/strong>:<\/p>\n<p>\u6b63\u786e\u4f7f\u7528\u4e86HTTP\u52a8\u8bcd, \u72b6\u6001\u7801\u4e5f\u6b63\u786e\u7684\u4f7f\u7528\u4e86, \u540c\u65f6\u4e5f\u53bb\u6389\u4e86\u4e0d\u5fc5\u8981\u7684\u53d8\u79cd.<\/p>\n<p>\u4f8b\u5982:<\/p>\n<div class=\"cnblogs_code\">\n<div class=\"cnblogs_code_toolbar\"><span class=\"cnblogs_code_copy\"><a title=\"\u590d\u5236\u4ee3\u7801\"><img decoding=\"async\" src=\"https:\/\/assets.cnblogs.com\/images\/copycode.gif\" alt=\"\u590d\u5236\u4ee3\u7801\" \/><\/a><\/span><\/div>\n<div class=\"cnblogs_code_toolbar\"><span class=\"cnblogs_code_copy\"><a title=\"\u590d\u5236\u4ee3\u7801\" rel=\"noopener\"><img decoding=\"async\" src=\"https:\/\/common.cnblogs.com\/images\/copycode.gif\" alt=\"\u590d\u5236\u4ee3\u7801\" \/><\/a><\/span><\/div>\n<pre>GET\r\nhttp:\/\/host\/api\/authors\r\n200 Ok (authors)\r\nPOST (author representation)\r\nhttp:\/\/host\/api\/authors\r\n201 Created (author)<\/pre>\n<div class=\"cnblogs_code_toolbar\"><span class=\"cnblogs_code_copy\"><a title=\"\u590d\u5236\u4ee3\u7801\" rel=\"noopener\"><img decoding=\"async\" src=\"https:\/\/common.cnblogs.com\/images\/copycode.gif\" alt=\"\u590d\u5236\u4ee3\u7801\" \/><\/a><\/span><\/div>\n<div class=\"cnblogs_code_toolbar\"><span class=\"cnblogs_code_copy\"><a title=\"\u590d\u5236\u4ee3\u7801\"><img decoding=\"async\" src=\"https:\/\/assets.cnblogs.com\/images\/copycode.gif\" alt=\"\u590d\u5236\u4ee3\u7801\" \/><\/a><\/span><\/div>\n<\/div>\n<p>&nbsp;<\/p>\n<p><strong>3\u7ea7, \u8d85\u5a92\u4f53<\/strong>:<\/p>\n<p>API\u652f\u6301<strong>\u8d85\u5a92\u4f53\u4f5c\u4e3a\u5e94\u7528\u72b6\u6001\u7684\u5f15\u64ce\u00a0HATEOAS<\/strong>, Hypermedia as the Engine of Application State, \u5f15\u5165\u4e86\u53ef\u53d1\u73b0\u6027.<\/p>\n<p>\u4f8b\u5982:<\/p>\n<div class=\"cnblogs_code\">\n<pre>GET\r\nhttp:\/\/host\/api\/authors\r\n200 Ok (\u8fd4\u56de\u4e86authors \u548c \u9a71\u52a8\u5e94\u7528\u7a0b\u5e8f\u7684\u8d85\u94fe\u63a5)<\/pre>\n<\/div>\n<p>&nbsp;<\/p>\n<h1>\u4ecb\u7ecdASP.NET Core<\/h1>\n<p>\u7565.<\/p>\n<p>\u4f46\u662f, \u4f60\u9700\u8981\u77e5\u9053\u4ee5\u4e0b\u6982\u5ff5: .NET Core, .NET Standard.<\/p>\n<p>\u8fd8\u9700\u8981\u4f1a\u4f7f\u7528\u4e0b\u5217\u5de5\u5177: .NET Core CLI, Visual Studio 2017\/Visual Studio Code\/Visual Studio for Mac<\/p>\n<p><strong>ASP.NET Core \u652f\u6301\u521b\u5efaWeb API, \u4f46\u5e76\u4e0d\u662f\u76f4\u63a5\u652f\u6301RESTful\u7684 Web API<\/strong>.<\/p>\n<p>&nbsp;<\/p>\n<h1>ASP.NET Core\u7684\u57fa\u672c\u77e5\u8bc6<\/h1>\n<p>\u8fd9\u90e8\u5206\u8fd8\u662f\u9700\u8981\u7b80\u5355\u7684\u4ecb\u7ecd\u4e0b, \u5982\u679c\u5df2\u7ecf\u4f1a\u4e86, \u8bf7\u7565\u8fc7\u672c\u6587\u5176\u4f59\u90e8\u5206.<\/p>\n<h2>\u521b\u5efaASP.NET Core\u9879\u76ee<\/h2>\n<p>\u6253\u5f00VS2017, \u9009\u62e9ASP.NET Core Web Application\u9879\u76ee\u6a21\u677f, \u5199\u597d\u540d\u5b57, OK.<\/p>\n<p><img decoding=\"async\" class=\"medium-zoom-image\" src=\"https:\/\/images2018.cnblogs.com\/blog\/986268\/201805\/986268-20180508221516235-274873595.png\" alt=\"\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>\u9009\u62e9\u7a7a\u6a21\u677f, OK:<\/p>\n<p><img decoding=\"async\" class=\"medium-zoom-image\" src=\"https:\/\/images2018.cnblogs.com\/blog\/986268\/201805\/986268-20180508221633800-1415064294.png\" alt=\"\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>\u9879\u76ee\u5efa\u7acb\u597d\u4e86, \u7ed3\u679c\u5982\u4e0b:<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/images2018.cnblogs.com\/blog\/986268\/201805\/986268-20180508221735562-222328325.png\" alt=\"\" \/><\/p>\n<p>\u7136\u540e\u6211\u4eec\u770b\u4e00\u4e0b\u9879\u76ee\u6587\u4ef6, \u53f3\u952e\u7f16\u8f91MyRestful.Api:<\/p>\n<p><img decoding=\"async\" class=\"medium-zoom-image\" src=\"https:\/\/images2018.cnblogs.com\/blog\/986268\/201805\/986268-20180508221924425-1820918173.png\" alt=\"\" \/><\/p>\n<p>\u8fd9\u91cc, SDK\u5c5e\u6027\u8868\u793a\u4e86\u6211\u4eec\u4f7f\u7528\u7684\u662f\u54ea\u4e2aSDK, \u800c\u76ee\u6807\u6846\u67b6\u662f.NET Core 2.0.<\/p>\n<p>(<em>\u63d0\u793a: \u5982\u679c\u9700\u8981\u6307\u5411\u591a\u4e2a\u76ee\u6807\u6846\u67b6\u7684\u8bdd\u53ef\u4ee5\u4f7f\u7528TargetFrameworks\u5143\u7d20, \u6ce8\u610f\u591a\u4e86\u4e2as<\/em>)<\/p>\n<p>&nbsp;<\/p>\n<p>\u770b\u4e00\u4e0bProgram.cs:<\/p>\n<p><img decoding=\"async\" class=\"medium-zoom-image\" src=\"https:\/\/images2018.cnblogs.com\/blog\/986268\/201805\/986268-20180508222310302-1718640870.png\" alt=\"\" \/><\/p>\n<p>Main\u65b9\u6cd5\u662f\u7a0b\u5e8f\u7684\u5165\u53e3. \u800cWeb\u7684\u5bbf\u4e3b\u662f\u901a\u8fc7BuildWebHost\u51fd\u6570\u6765\u5b9e\u4f8b\u5316\u7684, \u5b83\u8c03\u7528\u4e86WebHost.CreateDefaultBuilder\u65b9\u6cd5, \u5f88\u660e\u663e\u8fd9\u662f\u4e00\u4e2a\u5efa\u9020\u8005\u6a21\u5f0f, \u5b83\u6700\u7ec8\u4f1a\u6784\u5efa\u51fa\u4e00\u4e2aweb\u5bbf\u4e3b.<\/p>\n<p>\u8c03\u7528WebHost.CreateDefaultBuilder\u4f1a\u8fd4\u56de\u4e00\u4e2aIWebHostBuilder, \u5b83\u5141\u8bb8\u6211\u4eec\u8fdb\u884c\u4e00\u4e9b\u914d\u7f6e\u52a8\u4f5c.<\/p>\n<h2>\u7a0b\u5e8f\u542f\u52a8<\/h2>\n<p>UseStartup\u65b9\u6cd5\u4f1a\u6ce8\u518c\u4e00\u4e2a\u7c7b, \u8fd9\u4e2a\u7c7b\u8d1f\u8d23\u914d\u7f6e\u6574\u4e2a\u7a0b\u5e8f\u7684\u542f\u52a8\u8fc7\u7a0b. \u8fd9\u91cc\u9ed8\u8ba4\u7528\u7684\u662fStartup\u7c7b.<\/p>\n<p>Startup\u7c7b\u6709\u4e24\u4e2a\u65b9\u6cd5 ConfigureServices (\u8fd9\u4e2a\u53ef\u4ee5\u6ca1\u6709) \u548c Configure (\u8fd9\u4e2a\u5fc5\u987b\u6709):<\/p>\n<p><img decoding=\"async\" class=\"medium-zoom-image\" src=\"https:\/\/images2018.cnblogs.com\/blog\/986268\/201805\/986268-20180508222930352-421175207.png\" alt=\"\" \/><\/p>\n<p>\u5728Configure\u65b9\u6cd5\u91cc, \u914d\u7f6e\u5e94\u8be5\u9075\u5faaAdd\/Use\u7684\u98ce\u683c\u6837\u5f0f, \u9996\u5148\u5b9a\u4e49\u9700\u8981\u4ec0\u4e48, \u7136\u540e\u5b9a\u4e49\u5982\u4f55\u4f7f\u7528\u5b83.<\/p>\n<p>\u800c\u5728ConfigureServices\u65b9\u6cd5\u91cc, \u6240\u6709\u7a0b\u5e8f\u7ea7\u7684\u4f9d\u8d56\u9879\u90fd\u53ef\u4ee5\u5728\u8fd9\u91cc\u6ce8\u518c\u5230\u9ed8\u8ba4\u7684IoC\u5bb9\u5668\u91cc, \u628a\u5b83\u4eec\u6dfb\u52a0\u5230IServiceCollection\u5373\u53ef.<\/p>\n<p>Configure\u65b9\u6cd5\u624d\u662f\u771f\u6b63\u8d1f\u8d23\u914d\u7f6eHTTP\u8bf7\u6c42\u7ba1\u9053\u7684\u65b9\u6cd5, \u5e76\u4e14\u8fd0\u884c\u65f6\u4e5f\u9700\u8981\u5b83.<\/p>\n<p>IApplicationBuilder\u7684\u6269\u5c55\u65b9\u6cd5Run\u4f1a\u4f20\u9012\u4e00\u4e2aRequestDelegate, \u5176\u5185\u90e8\u529f\u80fd\u5c31\u662f\u56de\u5199Hello World.<\/p>\n<p>&nbsp;<\/p>\n<p>ASP.NET Core\u8fd8\u5141\u8bb8\u6211\u4eec\u6309\u7ea6\u5b9a\u4e3a\u6307\u5b9a\u73af\u5883\u5efa\u7acb\u5355\u72ec\u7684\u542f\u52a8\u914d\u7f6e. \u542f\u52a8\u7c7b\u53ef\u4ee5\u901a\u8fc7\u8fd9\u4e2a\u51fd\u6570\u5b9a\u4e49UseStartup(startupAssemblyName: xxx); \u8fd0\u884c\u65f6\u4f1a\u5728\u8fd9\u4e2a\u6307\u5b9a\u7684\u7ec4\u4ef6\u67e5\u627e\u53eb\u505aStartup, Startup[\u73af\u5883\u540d]\u7684\u7c7b, \u5176\u4e2d[\u73af\u5883\u540d]\u5c31\u662fASPNETCORE_ENVIRONMENT\u8fd9\u4e2a\u73af\u5883\u53d8\u91cf\u7684\u503c. \u5982\u679c\u80fd\u627e\u5230\u6307\u5b9a\u73af\u5883\u7684\u7c7b, \u90a3\u4e48\u5b83\u5c06\u8986\u76d6\u9ed8\u8ba4\u7684\u542f\u52a8\u7c7b.<\/p>\n<p>\u4f8b\u5982 \u73af\u5883\u53d8\u91cf\u503c\u5982\u679c\u662fDevelopmen\u7684\u8bdd, \u90a3\u4e48\u8fd0\u884c\u65f6\u5c31\u4f1a\u5c1d\u8bd5\u5bfb\u627eStartup\u548cStartupDevelopment\u7c7b, \u8be5\u7ea6\u5b9a\u5728\u542f\u52a8\u7c7b\u91cc\u9762\u7684\u65b9\u6cd5\u540d\u4e0a\u4e5f\u6709\u6548, \u73af\u5883\u7279\u5b9a\u7684\u542f\u52a8\u7c7b\u91cc\u7684\u4e24\u4e2a\u65b9\u6cd5\u5206\u522b\u662f Configure[\u73af\u5883\u540d]\u548cConfigure[\u73af\u5883\u540d]Services.<\/p>\n<p>&nbsp;<\/p>\n<p>\u9664\u4e86\u4e4b\u524d\u8bb2\u7684Run\u65b9\u6cd5\u5916, IApplicationBuilder\u8fd8\u6709\u4e00\u4e2aUse\u6269\u5c55\u65b9\u6cd5.<\/p>\n<p>Use\u6269\u5c55\u65b9\u6cd5\u63a5\u53d7RequestDelegate\u4f5c\u4e3a\u53c2\u6570\u6765\u63d0\u4f9bHttpContext, \u540c\u65f6\u63a5\u53d7\u4e5f\u4e3a\u4e0b\u4e00\u5c42\u51c6\u5907\u7684RequestDelegate\u53c2\u6570.<\/p>\n<p><img decoding=\"async\" class=\"medium-zoom-image\" src=\"https:\/\/images2018.cnblogs.com\/blog\/986268\/201805\/986268-20180508225109940-1780996916.png\" alt=\"\" \/><\/p>\n<p>\u9700\u8981\u6ce8\u610f\u7684\u662f, Run\u65b9\u6cd5\u548cUse\u65b9\u6cd5\u5b9a\u4e49\u7684\u987a\u5e8f\u975e\u5e38\u91cd\u8981, \u8fd0\u884c\u65f6\u5c06\u4f1a\u7cbe\u786e\u7684\u6309\u7167\u521b\u5efa\u7684\u987a\u5e8f\u6765\u6267\u884c.<\/p>\n<p>&nbsp;<\/p>\n<h2>\u670d\u52a1\u5668<\/h2>\n<p>ASP.NET Core \u670d\u52a1\u5668\u7684\u4f5c\u7528\u662f\u54cd\u5e94\u5ba2\u6237\u7aef\u53d1\u8fc7\u6765\u7684\u8bf7\u6c42, \u8fd9\u4e9b\u8bf7\u6c42\u4f1a\u4f5c\u4e3aHttpContext\u4f20\u9012\u8fdb\u6765. ASP.NET Core \u5185\u7f6e\u4e24\u79cd\u670d\u52a1\u5668:<\/p>\n<p><strong>Kestrel<\/strong>, \u5b83\u662f\u8de8\u5e73\u53f0\u7684\u670d\u52a1\u5668, \u57fa\u4e8eLibuv.<\/p>\n<p><strong>HTTP.sys<\/strong>, \u5b83\u662f\u4ec5\u9650Windows\u7cfb\u7edf\u7684\u670d\u52a1\u5668, \u57fa\u4e8eHTTP.sys\u5185\u6838\u9a71\u52a8.<\/p>\n<p>\u4e0b\u9762\u5c31\u662f\u4ece\u5ba2\u6237\u7aef\u53d1\u8bf7\u6c42\u5230\u5e94\u7528\u7a0b\u5e8f\u7684\u6d41\u56fe:<\/p>\n<p><img decoding=\"async\" class=\"medium-zoom-image\" src=\"https:\/\/images2018.cnblogs.com\/blog\/986268\/201805\/986268-20180509092834651-691834001.png\" alt=\"\" \/><\/p>\n<p>\u5176\u4e2dKestrel\u53ef\u4ee5\u4f5c\u4e3a\u4e00\u4e2a\u72ec\u7acb\u8fdb\u7a0b\u81ea\u884c\u6258\u7ba1, \u4e5f\u53ef\u4ee5\u5728IIS\u91cc. \u4f46\u662f\u8fd8\u662f\u5efa\u8bae\u4f7f\u7528IIS\u6216Nginx\u7b49\u4f5c\u4e3a\u53cd\u5411\u4ee3\u7406\u670d\u52a1\u5668. \u5728\u6784\u5efaAPI\u6216\u5fae\u670d\u52a1\u65f6, \u8fd9\u4e9b\u670d\u52a1\u5668\u53ef\u4ee5\u4f5c\u4e3a\u7f51\u5173\u4f7f\u7528, \u56e0\u4e3a\u5b83\u4eec\u4f1a\u9650\u5236\u5bf9\u5916\u66b4\u9732\u7684\u4e1c\u897f\u4e5f\u53ef\u4ee5\u66f4\u597d\u7684\u4e0e\u73b0\u6709\u7cfb\u7edf\u96c6\u6210, \u6240\u4ee5\u5b83\u4eec\u4f1a\u63d0\u4f9b\u989d\u5916\u7684\u9632\u5fa1\u5c42,<\/p>\n<p>\u4f7f\u7528\u53cd\u5411\u4ee3\u7406\u670d\u52a1\u5668(IIS)\u4e4b\u540e\u7684\u6d41\u56fe\u5982\u4e0b:<\/p>\n<p><img decoding=\"async\" class=\"medium-zoom-image\" src=\"https:\/\/images2018.cnblogs.com\/blog\/986268\/201805\/986268-20180509093415404-2071886156.png\" alt=\"\" \/><\/p>\n<p>\u8ba9web\u5bbf\u4e3b\u5de5\u4f5c\u4e8eIIS\u4e4b\u540e\u9700\u8981\u4f7f\u7528IWebHostBuilder\u7684UseIISIntegration\u8fd9\u4e2a\u6269\u5c55\u65b9\u6cd5.<\/p>\n<p>\u9664\u4e86\u5185\u7f6e\u7684\u4e24\u79cd\u670d\u52a1\u5668, \u60a8\u8fd8\u53ef\u4ee5\u4f7f\u7528\u81ea\u5b9a\u4e49\u7684\u670d\u52a1\u5668, \u4f7f\u7528IWebHostBuilder\u7684UserServer\u6269\u5c55\u65b9\u6cd5, \u5b83\u63a5\u53d7\u4e00\u4e2a\u5b9e\u73b0\u4e86IServer\u63a5\u53e3\u7684\u5b9e\u4f8b, \u60a8\u7684\u81ea\u5b9a\u4e49\u670d\u52a1\u5668\u9700\u8981\u5b9e\u73b0\u8be5\u63a5\u53e3. \u8fd9\u91cc\u5c31\u4e0d\u8bb2\u4e86.<\/p>\n<p>&nbsp;<\/p>\n<h2>\u4e2d\u95f4\u4ef6<\/h2>\n<p>\u5728\u5e94\u7528\u7a0b\u5e8f\u8bf7\u6c42\u7ba1\u9053\u5185\u88c5\u914d\u7684\u7ec4\u4ef6\u5c31\u662f\u4e2d\u95f4\u4ef6, \u5b83\u4eec\u8d1f\u8d23\u5904\u7406\u901a\u8fc7\u7ba1\u9053\u7684\u8bf7\u6c42\u548c\u54cd\u5e94.<\/p>\n<p>\u5728HTTP\u8bf7\u6c42\u7ba1\u9053\u7684\u4e0a\u4e0b\u6587\u91cc, \u4e2d\u95f4\u4ef6\u53ef\u4ee5\u53eb\u505a\u8bf7\u6c42\u59d4\u6258, \u5b83\u4eec\u662f\u7531Run, Map \u548c Use \u6269\u5c55\u65b9\u6cd5\u5171\u540c\u7ec4\u5efa\u800c\u6210\u7684.<\/p>\n<p>\u6bcf\u4e2a\u4e2d\u95f4\u4ef6\u53ef\u4ee5\u5728\u5b83\u88ab\u8c03\u7528\u4e4b\u524d\u548c\u4e4b\u540e\u6267\u884c\u53ef\u9009\u7684\u903b\u8f91, \u540c\u65f6\u4e5f\u53ef\u4ee5\u51b3\u5b9a\u8be5\u8bf7\u6c42\u662f\u5426\u53ef\u4ee5\u88ab\u9001\u5230\u7ba1\u9053\u7684\u4e0b\u4e00\u4e2a\u4e2d\u95f4\u4ef6\u90a3\u91cc.<\/p>\n<p>\u8bf7\u6c42\u5728\u4e2d\u95f4\u4ef6\u91cc\u7684\u6d41\u56fe\u5982\u4e0b:<\/p>\n<p><img decoding=\"async\" class=\"medium-zoom-image\" src=\"https:\/\/images2018.cnblogs.com\/blog\/986268\/201805\/986268-20180509094626121-732900123.png\" alt=\"\" \/><\/p>\n<p>\u770b\u4e00\u4e0b\u8fd9\u4e2a\u4f8b\u5b50:<\/p>\n<p><img decoding=\"async\" class=\"medium-zoom-image\" src=\"https:\/\/images2018.cnblogs.com\/blog\/986268\/201805\/986268-20180509095606180-233238848.png\" alt=\"\" \/><\/p>\n<p>\u5982\u679c\u6211\u5728\u6d4f\u89c8\u5668\u5730\u5740\u8f93\u5165\u00a0http:\/\/localhost:5000\/return, \u90a3\u4e48\u7ed3\u679c\u5c31\u662fReturned!<\/p>\n<p>\u5982\u679c\u8f93\u5165 http:\/\/localhost:5000\/end, \u90a3\u4e48\u662fThe End.<\/p>\n<p>\u5982\u679c\u8f93\u5165\u00a0http:\/\/localhost:5000\/xxx?value=1234, \u7ed3\u679c\u662f the number is 1234<\/p>\n<p>\u5982\u679c\u8f93\u5165\u00a0http:\/\/localhost:5000\/xxx?value=abcde, \u7ed3\u679c\u662f\u00a0Hello, the value is abcde!<\/p>\n<p>&nbsp;<\/p>\n<p>\u6ce8\u610f:\u00a0<strong>\u5e94\u7528\u7a0b\u5e8f\u7ba1\u9053\u91cc\u7684\u8bf7\u6c42\u59d4\u6258(\u4e2d\u95f4\u4ef6)\u5b9a\u4e49\u7684\u987a\u5e8f\u662f\u975e\u5e38\u91cd\u8981\u7684, \u8bf7\u6c42\u7684\u65f6\u5019\u6309\u5b9a\u4e49\u7684\u987a\u5e8f\u6267\u884c, \u800c\u54cd\u5e94\u7684\u987a\u5e8f\u6b63\u597d\u76f8\u53cd<\/strong>.<\/p>\n<p>&nbsp;<\/p>\n<p>\u4e2d\u95f4\u4ef6\u6700\u597d\u4e0d\u8981\u50cf\u4e0a\u9762\u4e00\u6837\u5199\u5728Startup\u7c7b\u91cc, \u6bcf\u4e2a\u4e2d\u95f4\u4ef6\u5e94\u8be5\u653e\u5728\u5355\u72ec\u7684\u7c7b\u91cc.<\/p>\n<p>\u6211\u628a\u4e0a\u4f8b\u4e2d\u68c0\u67e5\u662f\u5426\u4e3a\u6570\u5b57\u7684\u4e2d\u95f4\u4ef6\u5199\u5728\u4e00\u4e2a\u5355\u72ec\u7684\u7c7b\u91cc:<\/p>\n<p><img decoding=\"async\" class=\"medium-zoom-image\" src=\"https:\/\/images2018.cnblogs.com\/blog\/986268\/201805\/986268-20180509100440065-2075075324.png\" alt=\"\" \/><\/p>\n<p>\u8fd9\u79cd\u4e2d\u95f4\u4ef6\u6ca1\u6709\u5b9e\u73b0\u7279\u5b9a\u7684\u63a5\u53e3\u6216\u8005\u7ee7\u627f\u7279\u5b9a\u7c7b, \u5b83\u66f4\u50cf\u662fDuck Typing (\u4f60\u8d70\u8d77\u8def\u6765\u50cf\u4e2a\u9e2d\u5b50, \u53eb\u8d77\u6765\u50cf\u4e2a\u9e2d\u5b50, \u90a3\u4e48\u4f60\u5c31\u662f\u4e2a\u9e2d\u5b50).<\/p>\n<p>\u7136\u540e\u5728Startup\u7684Configure\u65b9\u6cd5\u91cc\u8c03\u7528app.UseMiddleware&lt;NumberMiddleware&gt;()\u5373\u53ef:<\/p>\n<p><img decoding=\"async\" class=\"medium-zoom-image\" src=\"https:\/\/images2018.cnblogs.com\/blog\/986268\/201805\/986268-20180509100715349-440423196.png\" alt=\"\" \/><\/p>\n<p>&nbsp;<\/p>\n<h2>\u8def\u7531<\/h2>\n<p>\u5728ASP.NET Core\u91cc,\u4f7f\u7528\u8def\u7531\u4e2d\u95f4\u4ef6RouterMiddleware\u6765\u5904\u7406\u8def\u7531.<\/p>\n<p>\u60f3\u8981\u4f7f\u7528\u8def\u7531, \u540c\u6837\u4e5f\u662f\u9075\u5faa Add\/Use \u8fd9\u4e2a\u6a21\u5f0f.<\/p>\n<p>\u9996\u5148\u5728ConfigureServices\u65b9\u6cd5\u91cc\u6dfb\u52a0(Add):<\/p>\n<p><img decoding=\"async\" class=\"medium-zoom-image\" src=\"https:\/\/images2018.cnblogs.com\/blog\/986268\/201805\/986268-20180509101003599-2050520419.png\" alt=\"\" \/><\/p>\n<p>\u7136\u540e\u5728Configure\u65b9\u6cd5\u91cc\u4f7f\u7528(Use):<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/images2018.cnblogs.com\/blog\/986268\/201805\/986268-20180509101158866-1342274829.png\" alt=\"\" \/><\/p>\n<p>UseRouter\u8fd9\u4e2a\u6269\u5c55\u65b9\u6cd5\u53ef\u4ee5\u63a5\u53d7IRouter\u6216\u8005Action&lt;IRouterBuilder&gt;\u4f5c\u4e3a\u53c2\u6570.<\/p>\n<p>\u4f8b\u5982:<\/p>\n<p><img decoding=\"async\" class=\"medium-zoom-image\" src=\"https:\/\/images2018.cnblogs.com\/blog\/986268\/201805\/986268-20180509102111057-459166257.png\" alt=\"\" \/><\/p>\n<p>\u5f53\u53d1\u9001\u00a0http:\/\/localhost:5000\/ GET\u8bf7\u6c42\u7684\u65f6\u5019, \u8fd4\u56de Default route.<\/p>\n<p>\u5f53 GET http:\/\/localhost:5000\/user\/dave\u7684\u65f6\u5019, \u8fd4\u56de Hi dave<\/p>\n<p>\u5f53 POST\u00a0http:\/\/localhost:5000\/user\/dave\u7684\u65f6\u5019, \u8fd4\u56de Hi, posted name is dave<\/p>\n<p>\u5176\u4e2d{name}, \u662f\u540d\u4e3aname\u7684\u53c2\u6570.<\/p>\n<p>\u5982\u679c\u5199\u6210&#8221;user\/{name}\/{age:number}&#8221;, \u90a3\u4e48age\u8fd9\u4e2a\u53c2\u6570\u7684\u5fc5\u987b\u53ef\u4ee5\u88ab\u89e3\u6790\u4e3a\u6570\u503c\u578b.<\/p>\n<p>\u800c&#8221;user\/{name}\/{gender?}&#8221;, \u8fd9\u91cc\u7684gender\u53c2\u6570\u53ef\u4ee5\u6ca1\u6709.<\/p>\n<p>&nbsp;<\/p>\n<h2>Controller<\/h2>\n<p>HTTP\u8bf7\u6c42\u901a\u8fc7\u7ba1\u9053\u6700\u7ec8\u5230\u8fbeAction\u5e76\u8fd4\u56de\u7684\u6d41\u56fe\u5982\u4e0b\uff1a<\/p>\n<p><img decoding=\"async\" class=\"medium-zoom-image\" src=\"https:\/\/images2018.cnblogs.com\/blog\/986268\/201805\/986268-20180509140621607-2024060725.png\" alt=\"\" \/><\/p>\n<p>\u9ed8\u8ba4\u60c5\u51b5\u4e0bController\u653e\u5728ASP.NET Core\u9879\u76ee\u7684Controllers\u76ee\u5f55\u4e0b\u3002<\/p>\n<p>\u5728ASP.NET Core\u9879\u76ee\u91cc\u53ef\u4ee5\u901a\u8fc7\u591a\u79cd\u65b9\u5f0f\u6765\u521b\u5efaController\uff0c\u5f53\u7136\u6700\u5efa\u8bae\u7684\u65b9\u5f0f\u8fd8\u662f\u901a\u8fc7<strong>\u7ee7\u627fAspNetCore.Mvc.Controller\u8fd9\u4e2a\u62bd\u8c61\u7c7b<\/strong>\u6765\u5efa\u7acbController\u3002<\/p>\n<p>\u4f8b\u5982\uff1a<\/p>\n<p><img decoding=\"async\" class=\"medium-zoom-image\" src=\"https:\/\/images2018.cnblogs.com\/blog\/986268\/201805\/986268-20180509141223520-1345406345.png\" alt=\"\" \/><\/p>\n<p>\u4e0a\u4f8b\u4e2d\u7c7b\u540d\u53ef\u4ee5\u4e0d\u662f\u4ee5Controller\u7ed3\u5c3e\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>\u8fd8\u6709\u5176\u5b83\u7684\u65b9\u5f0f\u521b\u5efaController\uff0c\u6309\u7ea6\u5b9a<strong>\u7c7b\u540d\u4ee5Controller\u7ed3\u5c3e<\/strong>\u7684POCO\u7c7b\u4e5f\u4f1a\u88ab\u8ba4\u4e3a\u662fController\uff0c\u4f8b\u5982\uff1a<\/p>\n<p><img decoding=\"async\" class=\"medium-zoom-image\" src=\"https:\/\/images2018.cnblogs.com\/blog\/986268\/201805\/986268-20180509141449521-759860200.png\" alt=\"\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>\u9488\u5bf9POCO\u7c7b\uff0c \u5373\u4f7f\u540d\u79f0\u4e0d\u662f\u4ee5Controller\u7ed3\u5c3e\uff0c\u4ecd\u7136\u53ef\u4ee5\u628a\u5b83\u4f5c\u4e3aController\uff0c\u8fd9\u5c31\u9700\u8981\u5728\u7c7b\u4e0a\u9762\u6dfb\u52a0\u00a0<strong>[Controller]<\/strong>\u00a0\u8fd9\u4e2a\u5c5e\u6027\uff1a<\/p>\n<p><img decoding=\"async\" class=\"medium-zoom-image\" src=\"https:\/\/images2018.cnblogs.com\/blog\/986268\/201805\/986268-20180509141725022-747419782.png\" alt=\"\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>\u5982\u679c\u67d0\u4e2a\u7c7b\u7684\u540d\u5b57\u4ee5Controller\u7ed3\u5c3e\uff0c \u4f46\u662f\u4f60\u4e0d\u60f3\u628a\u5b83\u5f53\u4f5cController\uff0c\u90a3\u4e48\u5c31\u5e94\u8be5\u4e3a\u8be5\u7c7b\u6807\u6ce8<strong>\u00a0[NonController]<\/strong>\u00a0\u8fd9\u4e2a\u5c5e\u6027\uff1a<\/p>\n<p><img decoding=\"async\" class=\"medium-zoom-image\" src=\"https:\/\/images2018.cnblogs.com\/blog\/986268\/201805\/986268-20180509141922425-881067212.png\" alt=\"\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>\u5b9e\u9645\u4e0a\uff0c \u770b\u6e90\u7801\u5c31\u53ef\u4ee5\u77e5\u9053 Controller \u7ee7\u627f\u4e8e ControllerBase:<\/p>\n<p><img decoding=\"async\" class=\"medium-zoom-image\" src=\"https:\/\/images2018.cnblogs.com\/blog\/986268\/201805\/986268-20180509142022547-2140130543.png\" alt=\"\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>\u800cControllerBase\u4e0a\u9762\u6807\u6ce8\u7740\u00a0<strong>[Controller]\u00a0<\/strong>\u5c5e\u6027\u3002<\/p>\n<p>&nbsp;<\/p>\n<h2>Action<\/h2>\n<p>\u5728Controller\u91cc\u9762\uff0c\u53ef\u4ee5\u4f7f\u7528public\u4fee\u9970\u7b26\u6765\u5b9a\u4e49Action\uff0c\u901a\u5e38\u4f1a\u5e26\u6709\u53c2\u6570\uff0c\u53ef\u4ee5\u8fd4\u56de\u4efb\u4f55\u7c7b\u578b\uff0c\u4f46\u662f\u5927\u591a\u6570\u60c5\u51b5\u4e0b\u5e94\u8be5\u8fd4\u56de<strong>IActionResult<\/strong>\u3002<strong>Action\u7684\u65b9\u6cd5\u540d\u8981\u4e48\u662f\u4ee5HTTP\u7684\u52a8\u8bcd\u5f00\u5934<\/strong>\uff0c\u8981\u4e48\u662f\u4f7f\u7528HTTP\u52a8\u8bcd\u5c5e\u6027\u6807\u7b7e\uff0c\u5305\u62ec\uff1a<strong>[HttpGet], [HttpPut], [HttpPost], [HttpDelete], [HttpHead], [HttpOptions], [HttpPatch].<\/strong><\/p>\n<p>\u4f8b\u5982\uff1a<\/p>\n<p><img decoding=\"async\" class=\"medium-zoom-image\" src=\"https:\/\/images2018.cnblogs.com\/blog\/986268\/201805\/986268-20180509142805447-875987823.png\" alt=\"\" \/><\/p>\n<p>\u5176\u4e2d\u67d0\u4e2a\u65b9\u6cd5\u540d\u5982\u679c\u6070\u597d\u662f\u4ee5HTTP\u7684\u52a8\u8bcd\u5f00\u5934\uff0c\u90a3\u4e48\u53ef\u4ee5\u901a\u8fc7\u6807\u6ce8\u00a0<strong>[NonAction]<\/strong>\u00a0\u5c5e\u6027\u6765\u8868\u793a\u8fd9\u4e2a\u65b9\u6cd5\u4e0d\u662fAction\u3002<\/p>\n<p>\u901a\u8fc7\u7ee7\u627fController\u57fa\u7c7b\u7684\u65b9\u6cd5\u6765\u521b\u5efaController\u8fd8\u662f\u6709\u5f88\u591a\u597d\u5904\u7684\uff0c\u56e0\u4e3a\u5b83\u63d0\u4f9b\u4e86\u5f88\u591a\u5e2e\u52a9\u65b9\u6cd5\uff0c\u4f8b\u5982\uff1a<strong>Ok, NotFound, BadRequest<\/strong>\u7b49\uff0c\u5b83\u4eec\u5206\u522b\u5bf9\u5e94HTTP\u7684\u72b6\u6001\u7801 200, 404, 400\uff1b\u6b64\u5916\u8fd8\u6709<strong>Redirect\uff0cLocalRedirect\uff0cRedirectToRoute\uff0cJson\uff0cFile\uff0cContent<\/strong>\u7b49\u65b9\u6cd5\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>\u4e3aMVC\u5b9a\u4e49\u8def\u7531\u6709\u4e24\u79cd\u65b9\u5f0f\uff1a\u4f7f\u7528IRouteBuilder\u6216\u8005\u4f7f\u7528<strong>\u57fa\u4e8e\u5c5e\u6027\u6807\u7b7e\u7684\u8def\u7531<\/strong>\u3002\u9488\u5bf9Rest\uff0c\u6700\u597d\u8fd8\u662f\u4f7f\u7528\u57fa\u4e8e\u5c5e\u6027\u6807\u7b7e\u7684\u65b9\u5f0f\u3002<\/p>\n<p>\u8def\u7531\u5c5e\u6027\u6807\u7b7e\u53ef\u4ee5\u6807\u6ce8\u5728Controller\u6216\u8005Action\u65b9\u6cd5\u4e0a\uff0c\u4f8b\u5982\uff1a<\/p>\n<p><img decoding=\"async\" class=\"medium-zoom-image\" src=\"https:\/\/images2018.cnblogs.com\/blog\/986268\/201805\/986268-20180509143657503-202830053.png\" alt=\"\" \/><\/p>\n<p>Controller\u7c7b\u4e0a\u6807\u6ce8\u7684\u8def\u7531\u201c<strong>api\/[controller]<\/strong>\u201d\uff0c\u5176\u4e2d[controller] \u5c31\u4ee3\u8868\u8be5\u7c7b\u7684\u540d\u5b57\u53bb\u6389\u7ed3\u5c3eController\u7684\u90e8\u5206\uff0c\u4e5f\u5c31\u662f\u201capi\/person\u201d\u3002<\/p>\n<p>\u5728Controller\u4e0a\u4f7f\u7528<strong>[Route]<\/strong>\u5c5e\u6027\u5c31\u5b9a\u4e49\u4e86\u8be5Controller\u4e0b\u6240\u6709Action\u7684\u8def\u7531\u57fa\u5730\u5740\uff0c\u6bcf\u4e2aAction\u53ef\u4ee5\u5305\u542b\u4e00\u4e2a\u6216\u8005\u591a\u4e2a\u76f8\u5bf9\u7684\u8def\u7531\u6a21\u677f\uff08\u5730\u5740\uff09\uff0c\u8fd9\u4e9b\u8def\u7531\u6a21\u677f\u53ef\u4ee5\u5728<strong>[Http&#8230;]<\/strong>\u4e2d\u5b9a\u4e49\u3002\u4f46\u662f\u5982\u679c\u4f7f\u7528\u00a0<strong>~<\/strong>\u00a0\u8fd9\u4e2a\u7b26\u53f7\u7684\u8bdd\uff0c\u8be5Action\u7684\u5730\u5740\u5c06\u4f1a\u662f\u7edd\u5bf9\u8def\u7531\u5730\u5740\uff0c\u4e5f\u5c31\u662f\u8986\u76d6\u4e86Controller\u5b9a\u4e49\u7684\u57fa\u8def\u7531\u3002<\/p>\n<p>&nbsp;<\/p>\n<h2>\u5b9e\u4f53\u7ed1\u5b9a<\/h2>\n<p>\u4f20\u5165\u7684\u8bf7\u6c42\u4f1a\u6620\u5c04\u5230Action\u65b9\u6cd5\u7684\u53c2\u6570\uff0c\u53ef\u4ee5\u5b9e\u539f\u59cb\u6570\u636e\u7c7b\u578b\u4e5f\u53ef\u4ee5\u662f\u590d\u6742\u7684\u7c7b\u578b\u4f8b\u5982Dto\uff08data transfer object\uff09\u6216ViewModel\u3002\u8fd9\u4e2a\u628aHttp\u8bf7\u6c42\u7ed1\u5b9a\u5230\u53c2\u6570\u7684\u8fc7\u7a0b\u53eb\u505a\u5b9e\u4f53\u7ed1\u5b9a\u3002<\/p>\n<p>\u4f8b\u5982\uff1a<\/p>\n<p><img decoding=\"async\" class=\"medium-zoom-image\" src=\"https:\/\/images2018.cnblogs.com\/blog\/986268\/201805\/986268-20180509144411521-554436603.png\" alt=\"\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>\u5176\u4e2did\u53c2\u6570\u662f\u5b9a\u4e49\u5728\u8def\u7531\u91cc\u7684\uff0c\u800cname\u53c2\u6570\u5728\u8def\u7531\u91cc\u6ca1\u6709\uff0c\u4f46\u662f\u4ecd\u7136\u53ef\u4ee5\u4ece\u67e5\u8be2\u53c2\u6570\u4e2d\u628aname\u53c2\u6570\u6620\u5c04\u51fa\u6765\u3002<\/p>\n<p>\u6ce8\u610f\u8def\u7531\u53c2\u6570\u548c\u67e5\u8be2\u53c2\u6570\u7684\u533a\u522b\uff0c\u4e0b\u9762\u8fd9\u4e2aURL\u91ccval1\u548cval2\u662f\u67e5\u8be2\u53c2\u6570\uff0c\u5b83\u4eec\u662f\u5728url\u7684\u540e\u8fb9\u4f7f\u7528?\u548c&amp;\u5206\u9694\uff1a<\/p>\n<div class=\"cnblogs_code\">\n<pre>\/product?val1=2&amp;val2=10<\/pre>\n<\/div>\n<p>&nbsp;<\/p>\n<p>\u800c\u9488\u5bf9\u4e0a\u9762\u7684Action\uff0c\u4e0b\u9762\u8fd9\u4e2aURL\u7684\u8def\u7531\u53c2\u6570id\u5c31\u662f123\uff1a<\/p>\n<div class=\"cnblogs_code\">\n<pre>\/api\/first\/123<\/pre>\n<\/div>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>\u9488\u5bf9\u4e0b\u9762\u8fd9\u4e2aPOST Action\uff1a<\/p>\n<p><img decoding=\"async\" class=\"medium-zoom-image\" src=\"https:\/\/images2018.cnblogs.com\/blog\/986268\/201805\/986268-20180509145305846-1583178274.png\" alt=\"\" \/><\/p>\n<p>\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u51e0\u79cd\u65b9\u5f0f\u4e3a\u5176\u4f20\u9012\u7c7b\u578b\u4e3aPerson\u7684\u53c2\u6570\u3002<\/p>\n<p>\u53ef\u4ee5\u4f7f\u7528\u67e5\u8be2\u53c2\u6570\uff1a<strong>\/api\/people?id=1&amp;name=Dave<\/strong><\/p>\n<p>\u5982\u679cPOST Json\u6570\u636e\uff1a<\/p>\n<p><img decoding=\"async\" class=\"medium-zoom-image\" src=\"https:\/\/images2018.cnblogs.com\/blog\/986268\/201805\/986268-20180509150005805-1161171259.png\" alt=\"\" \/><\/p>\n<p><img decoding=\"async\" class=\"medium-zoom-image\" src=\"https:\/\/images2018.cnblogs.com\/blog\/986268\/201805\/986268-20180509150430585-2109757910.png\" alt=\"\" \/><\/p>\n<p>\u90a3\u4e48\u5728Action\u91cc\u9762\u5f97\u5230\u7684\u53c2\u6570person\u7684\u5c5e\u6027\u503c\u90fd\u662fnull\u3002\u8fd9\u662f\u56e0\u4e3a\u8fd9\u6837\u7684\u539f\u59cb\u6570\u636e\u662f\u5305\u542b\u5728\u8bf7\u6c42\u7684Body\u91cc\u9762\uff0c\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u4f60\u9700\u8981\u544a\u8bc9Action\u4ece\u54ea\u91cc\u83b7\u53d6\u53c2\u6570\uff0c\u9488\u5bf9\u8fd9\u4e2a\u4f8b\u5b50\u5c31\u5e94\u8be5\u4f7f\u7528\u00a0<strong>[FromBody]<\/strong>\u00a0\u5c5e\u6027\u6807\u7b7e\uff1a<\/p>\n<p><img decoding=\"async\" class=\"medium-zoom-image\" src=\"https:\/\/images2018.cnblogs.com\/blog\/986268\/201805\/986268-20180509150342294-626745839.png\" alt=\"\" \/><\/p>\n<p>\u5982\u679c\u63d0\u4ea4\u7684\u662f\u8868\u5355\u6570\u636e\uff0c\u90a3\u4e48\u5c31\u5e94\u8be5\u4f7f\u7528<strong>[FromForm]:<\/strong><\/p>\n<p><img decoding=\"async\" class=\"medium-zoom-image\" src=\"https:\/\/images2018.cnblogs.com\/blog\/986268\/201805\/986268-20180509150923593-896344018.png\" alt=\"\" \/><\/p>\n<p><img decoding=\"async\" class=\"medium-zoom-image\" src=\"https:\/\/images2018.cnblogs.com\/blog\/986268\/201805\/986268-20180509150954504-1607521856.png\" alt=\"\" \/><\/p>\n<p>\u5176\u5b83\u7684\u51fa\u5904\u8fd8\u6709\u00a0<strong>[FromHeader], [FromRoute], [FromServices]<\/strong>\u7b49\u3002<\/p>\n<p>\u518d\u770b\u4e00\u4e2aFromHeader\u7684\u4f8b\u5b50\uff1a<\/p>\n<p><img decoding=\"async\" class=\"medium-zoom-image\" src=\"https:\/\/images2018.cnblogs.com\/blog\/986268\/201805\/986268-20180509151457847-1054046063.png\" alt=\"\" \/><\/p>\n<p>&nbsp;<\/p>\n<p><img decoding=\"async\" class=\"medium-zoom-image\" src=\"https:\/\/images2018.cnblogs.com\/blog\/986268\/201805\/986268-20180509151446518-252695545.png\" alt=\"\" \/><\/p>\n<p>\u5982\u679c\u4f7f\u7528\u590d\u6742\u7c7b\u578bPerson\u6765\u83b7\u53d6person\u53c2\u6570\u597d\u50cf\u4e0d\u884c\uff0c\u53ea\u80fd\u4f7f\u7528\u539f\u59cb\u7c7b\u578b\u7684\u5427\uff1f<\/p>\n<p>&nbsp;<\/p>\n<h2>\u5b9e\u4f53\u9a8c\u8bc1<\/h2>\n<p>ASP.NET Core\u5185\u7f6e\u7684\u5b9e\u4f53\u9a8c\u8bc1\u662f\u901a\u8fc7\u9a8c\u8bc1\u5c5e\u6027\u6807\u7b7e\u6765\u5b9e\u73b0\u7684\uff0c\u5927\u591a\u6570\u60c5\u51b5\u4e0b\u8fd9\u6837\u4f1a\u5f88\u65b9\u4fbf\u3002<\/p>\n<p>\u4f8b\u5982\uff1a<\/p>\n<p><img decoding=\"async\" class=\"medium-zoom-image\" src=\"https:\/\/images2018.cnblogs.com\/blog\/986268\/201805\/986268-20180509151946308-929129874.png\" alt=\"\" \/><\/p>\n<p>\u5176\u4e2dDisplay\u4e0d\u662f\u9a8c\u8bc1\u6807\u7b7e\uff0c\u4f46\u662f\u901a\u8fc7\u5b83\u53ef\u4ee5\u81ea\u5b9a\u4e49\u5c5e\u6027\u7684\u663e\u5f0f\u540d\u79f0\uff0c\u5728\u5176\u5b83\u9519\u8bef\u4fe1\u606f\u91cc\u53ef\u4ee5\u4f7f\u7528{0}\u6765\u5f15\u7528\u8be5\u540d\u79f0\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>\u5224\u65ad\u5b9e\u4f53\u53c2\u6570\u662f\u5426\u7b26\u5408\u8981\u6c42\uff0c\u53ef\u4ee5\u68c0\u67e5ModelState.IsValid\u5c5e\u6027\uff0c\u8fd9\u4e2a\u5c5e\u6027\u4e5f\u662f\u7531ControllerBase\u63d0\u4f9b\u7684\uff0c\u4f8b\u5982\uff1a<\/p>\n<p><img decoding=\"async\" class=\"medium-zoom-image\" src=\"https:\/\/images2018.cnblogs.com\/blog\/986268\/201805\/986268-20180509152813299-468650255.png\" alt=\"\" \/><\/p>\n<p>\u53d1\u9001\u4e00\u4e2a\u8bf7\u6c42\uff1a<\/p>\n<p><img decoding=\"async\" class=\"medium-zoom-image\" src=\"https:\/\/images2018.cnblogs.com\/blog\/986268\/201805\/986268-20180509152831029-415600635.png\" alt=\"\" \/><\/p>\n<p>\u8fd9\u662f\u4e2a\u4e0d\u5408\u7406\u7684\u53c2\u6570\uff0c\u8fd4\u56de\u7684\u662f400 BadRequest\uff0c\u5e26\u7740\u9a8c\u8bc1\u7ed3\u679c\uff1a<\/p>\n<p><img decoding=\"async\" class=\"medium-zoom-image\" src=\"https:\/\/images2018.cnblogs.com\/blog\/986268\/201805\/986268-20180509152914239-1979978358.png\" alt=\"\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>\u5c3d\u7ba1\u5927\u591a\u6570\u60c5\u51b5\u897f\uff0c\u9a8c\u8bc1\u5c5e\u6027\u6807\u7b7e\u90fd\u6ee1\u8db3\u8981\u6c42\uff0c\u4f46\u662f\u6709\u65f6\u5019\u8fd8\u662f\u9700\u8981\u8fdb\u884c\u4e00\u4e9b\u7075\u6d3b\u7684\u9a8c\u8bc1\uff0c\u4f60\u53ef\u4ee5\u4f7f\u7528\u50cf<strong>FluentValidation<\/strong>\u8fd9\u6837\u7684\u7b2c\u4e09\u65b9\u5e93\uff0c\u4e5f\u53ef\u4ee5\u4f7f\u7528\u5185\u7f6e\u7684\u65b9\u5f0f\u6765\u5b9e\u73b0\u81ea\u5b9a\u4e49\u9a8c\u8bc1\u3002<\/p>\n<p>ASP.NET Core\u5185\u7f6e\u652f\u6301\u4e24\u79cd\u65b9\u5f0f\u6765\u8fdb\u884c\u81ea\u5b9a\u4e49\u9a8c\u8bc1\uff1a\u901a\u8fc7\u7ee7\u627f<strong>ValidationAttribute<\/strong>\u6765\u521b\u5efa\u81ea\u5b9a\u4e49\u9a8c\u8bc1\u5c5e\u6027\u6807\u7b7e\uff0c\u6216\u8005\u8ba9\u5b9e\u4f53\u5b9e\u73b0IValidatebleObject\u63a5\u53e3\u3002<\/p>\n<p>\u4f7f\u7528\u81ea\u5b9a\u4e49\u9a8c\u8bc1\u5c5e\u6027\u6807\u7b7e\uff1a<\/p>\n<p><img decoding=\"async\" class=\"medium-zoom-image\" src=\"https:\/\/images2018.cnblogs.com\/blog\/986268\/201805\/986268-20180509153730996-1476495465.png\" alt=\"\" \/><\/p>\n<p>\u628a\u8be5\u6807\u7b7e\u653e\u5230name\u5c5e\u6027\u4e0a<\/p>\n<p><img decoding=\"async\" class=\"medium-zoom-image\" src=\"https:\/\/images2018.cnblogs.com\/blog\/986268\/201805\/986268-20180509153905892-209689496.png\" alt=\"\" \/><\/p>\n<p>\u4f7f\u7528\u521a\u624d\u7684\u8bf7\u6c42\uff0c\u5176\u7ed3\u679c\u662f\uff1a<\/p>\n<p><img decoding=\"async\" class=\"medium-zoom-image\" src=\"https:\/\/images2018.cnblogs.com\/blog\/986268\/201805\/986268-20180509154016108-749968031.png\" alt=\"\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>\u53e6\u4e00\u79cd\u65b9\u5f0f\uff0c\u5728Person\u7c7b\u5b9e\u73b0<strong>IValidatableObject<\/strong>\u63a5\u53e3<\/p>\n<p><img decoding=\"async\" class=\"medium-zoom-image\" src=\"https:\/\/images2018.cnblogs.com\/blog\/986268\/201805\/986268-20180509160008341-1057271554.png\" alt=\"\" \/><\/p>\n<p>\u4f46\u662f\u6211\u4f7f\u7528\u8fd9\u79cd\u65b9\u6cd5\u5e76\u4e0d\u597d\u7528\uff0c\u4e0d\u77e5\u9053\u6211\u54ea\u91cc\u7528\u9519\u4e86\uff01<\/p>\n<p>&nbsp;<\/p>\n<h2>\u8fc7\u6ee4\u5668<\/h2>\n<p><img decoding=\"async\" class=\"medium-zoom-image\" src=\"https:\/\/images2018.cnblogs.com\/blog\/986268\/201805\/986268-20180509161443191-351005055.png\" alt=\"\" \/><\/p>\n<p>\u548c\u4e2d\u95f4\u4ef6\u4e00\u6837\uff0cASP.NET Core MVC\u7684\u8fc7\u6ee4\u5668\u4e5f\u53ef\u4ee5\u5728\u8bf7\u6c42\u7ba1\u9053\u7684\u7279\u5b9a\u9636\u6bb5\u7684\u4e4b\u524d\u6216\u4e4b\u540e\u6267\u884c\u67d0\u4e9b\u4ee3\u7801\u3002\u8fc7\u6ee4\u5668\u8fd8\u53ef\u4ee5\u6709\u5b50\u7ba1\u9053\uff0c\u5b50\u7ba1\u9053\u91cc\u9762\u5305\u542b\u7740\u5176\u5b83\u8fc7\u6ee4\u5668\u3002<\/p>\n<p>\u8fc7\u6ee4\u5668\u548c\u4e2d\u95f4\u4ef6\u7684\u533a\u522b\uff1a<strong>\u4e2d\u95f4\u4ef6\u662f\u5e94\u7528\u7a0b\u5e8f\u7ea7\u522b\u7684\uff0c\u5b83\u53ef\u4ee5\u5904\u7406\u6bcf\u4e2a\u53d1\u9001\u8fc7\u6765\u7684\u8bf7\u6c42\uff1b\u800c\u8fc7\u6ee4\u5668\u662f\u9488\u5bf9MVC\u7684\uff0c\u5b83\u53ea\u4f1a\u5904\u7406\u53d1\u5f80MVC\u7684\u8bf7\u6c42\u3002<\/strong><\/p>\n<p>ASP.NET Core MVC\u7684\u8fc7\u6ee4\u5668\u5206\u4e3a5\u7c7b\uff1a<\/p>\n<ul>\n<li>\u6388\u6743\u8fc7\u6ee4\u5668\uff0c\u5b83\u662f\u7b2c\u4e00\u4e2a\u8fd0\u884c\u7684\uff0c\u5b83\u7684\u4f5c\u7528\u5c31\u662f\u5224\u65adHTTP Context\u4e2d\u7684\u7528\u6237\u662f\u5426\u62e5\u6709\u5f53\u524d\u8bf7\u6c42\u7684\u6743\u9650\uff0c\u5982\u679c\u7528\u6237\u6ca1\u6709\u6743\u9650\uff0c\u90a3\u4e48\u5b83\u5c31\u4f1a\u201c\u77ed\u8def\u201d\u7ba1\u9053\u3002<\/li>\n<li>\u8d44\u6e90\u8fc7\u6ee4\u5668\uff0c\u5728\u6388\u6743\u8fc7\u6ee4\u5668\u540e\u8fd0\u884c\uff0c\u5728\u7ba1\u9053\u5176\u5b83\u52a8\u4f5c\u4e4b\u524d\uff0c\u548c\u7ba1\u9053\u52a8\u4f5c\u90fd\u7ed3\u675f\u540e\u8fd0\u884c\u3002\u5b83\u53ef\u4ee5\u5b9e\u73b0\u7f13\u5b58\u6216\u7531\u4e8e\u6027\u80fd\u539f\u56e0\u6267\u884c\u77ed\u8def\u64cd\u4f5c\u3002\u5b83\u5728\u5b9e\u4f53\u7ed1\u5b9a\u4e4b\u524d\u8fd0\u884c\uff0c\u6240\u4ee5\u5b83\u4e5f\u53ef\u4ee5\u5bf9\u5f71\u54cd\u5b9e\u4f53\u7ed1\u5b9a\u3002<\/li>\n<li>Action\u8fc7\u6ee4\u5668\uff0c\u5b83\u5728Action\u65b9\u6cd5\u8c03\u7528\u4e4b\u524d\u548c\u4e4b\u540e\u7acb\u5373\u6267\u884c\uff0c\u5b83\u53ef\u4ee5\u64cd\u4f5c\u4f20\u8fdbAction\u7684\u53c2\u6570\u548c\u8fd4\u56de\u7684\u7ed3\u679c\u3002<\/li>\n<li>\u5f02\u5e38\u8fc7\u6ee4\u5668\uff0c\u9488\u5bf9\u5728\u5199\u5165\u54cd\u5e94Body\u4e4b\u524d\u53d1\u751f\u7684\u672a\u5904\u7406\u7684\u5f02\u5e38\uff0c\u5b83\u53ef\u4ee5\u5e94\u7528\u5168\u5c40\u7684\u7b56\u7565\uff0c<\/li>\n<li>\u7ed3\u679c\u8fc7\u6ee4\u5668\uff0c\u5b83\u53ef\u4ee5\u5728\u6bcf\u4e2aAction\u7ed3\u679c\u6267\u884c\u4e4b\u524d\u548c\u4e4b\u540e\u8fd0\u884c\u4ee3\u7801\uff0c\u4f46\u4e5f\u53ea\u662f\u5728Action\u65b9\u6cd5\u65e0\u9519\u8bef\u7684\u6210\u529f\u5b8c\u6210\u540e\u624d\u53ef\u4ee5\u6267\u884c\u3002<\/li>\n<\/ul>\n<p>\u4e0b\u56fe\u6807\u660e\u4e86\u8fd9\u4e9b\u8fc7\u6ee4\u5668\u5728\u7ba1\u9053\u4e2d\u662f\u5982\u4f55\u4ea4\u4e92\u7684\uff1a<\/p>\n<p><img decoding=\"async\" class=\"medium-zoom-image\" src=\"https:\/\/images2018.cnblogs.com\/blog\/986268\/201805\/986268-20180509162345262-2047881181.png\" alt=\"\" \/><\/p>\n<p>\u8fc7\u6ee4\u5668\u53ef\u4ee5\u4f5c\u4e3a\u5c5e\u6027\u6807\u7b7e\u4f7f\u7528\uff0c\u6216\u8005\u4e5f\u53ef\u4ee5\u5728Startup\u7c7b\u91cc\u9762\u8fdb\u884c\u5168\u5c40\u6ce8\u518c\u3002<\/p>\n<p>\u4f8b\u5b50\uff1a<\/p>\n<div class=\"cnblogs_code\">\n<div class=\"cnblogs_code_toolbar\"><span class=\"cnblogs_code_copy\"><a title=\"\u590d\u5236\u4ee3\u7801\"><img decoding=\"async\" src=\"https:\/\/assets.cnblogs.com\/images\/copycode.gif\" alt=\"\u590d\u5236\u4ee3\u7801\" \/><\/a><\/span><\/div>\n<div class=\"cnblogs_code_toolbar\"><span class=\"cnblogs_code_copy\"><a title=\"\u590d\u5236\u4ee3\u7801\" rel=\"noopener\"><img decoding=\"async\" src=\"https:\/\/common.cnblogs.com\/images\/copycode.gif\" alt=\"\u590d\u5236\u4ee3\u7801\" \/><\/a><\/span><\/div>\n<pre>using System.Threading.Tasks;\r\nusing Microsoft.AspNetCore.Mvc.Filters;\r\n\r\nnamespace MyRestful.Api.Filters\r\n{\r\n    public class DefaultNameFilter:<\/pre>\n<p><strong>IActionFilter, IAsyncActionFilter<\/strong><\/p>\n<pre>    {\r\n        public void OnActionExecuting(ActionExecutingContext context)\r\n        {\r\n            context.ActionDescriptor.RouteValues[\"name\"] = \"Anonymous\";\r\n        }\r\n\r\n        public void OnActionExecuted(ActionExecutedContext context)\r\n        {\r\n            context.HttpContext.Response.Headers[\"X-Name\"] = context.ActionDescriptor.RouteValues[\"name\"];\r\n        }\r\n\r\n        public async Task OnActionExecutionAsync(ActionExecutingContext context, ActionExecutionDelegate next)\r\n        {\r\n            OnActionExecuting(context);\r\n            var result = await next();\r\n            OnActionExecuted(result);\r\n        }\r\n    }\r\n}<\/pre>\n<div class=\"cnblogs_code_toolbar\"><span class=\"cnblogs_code_copy\"><a title=\"\u590d\u5236\u4ee3\u7801\" rel=\"noopener\"><img decoding=\"async\" src=\"https:\/\/common.cnblogs.com\/images\/copycode.gif\" alt=\"\u590d\u5236\u4ee3\u7801\" \/><\/a><\/span><\/div>\n<div class=\"cnblogs_code_toolbar\"><span class=\"cnblogs_code_copy\"><a title=\"\u590d\u5236\u4ee3\u7801\"><img decoding=\"async\" src=\"https:\/\/assets.cnblogs.com\/images\/copycode.gif\" alt=\"\u590d\u5236\u4ee3\u7801\" \/><\/a><\/span><\/div>\n<\/div>\n<p>\u5168\u5c40\u6ce8\u518c\uff0c\u5728Startup\u91cc\uff1a<\/p>\n<div class=\"cnblogs_code\">\n<div class=\"cnblogs_code_toolbar\"><span class=\"cnblogs_code_copy\"><a title=\"\u590d\u5236\u4ee3\u7801\"><img decoding=\"async\" src=\"https:\/\/assets.cnblogs.com\/images\/copycode.gif\" alt=\"\u590d\u5236\u4ee3\u7801\" \/><\/a><\/span><\/div>\n<div class=\"cnblogs_code_toolbar\"><span class=\"cnblogs_code_copy\"><a title=\"\u590d\u5236\u4ee3\u7801\" rel=\"noopener\"><img decoding=\"async\" src=\"https:\/\/common.cnblogs.com\/images\/copycode.gif\" alt=\"\u590d\u5236\u4ee3\u7801\" \/><\/a><\/span><\/div>\n<pre>        public void ConfigureServices(IServiceCollection services)\r\n        {\r\n            services.AddMvc(options =&gt;\r\n            {\r\n<\/pre>\n<p><strong>options.Filters.Add<\/strong><strong>&lt;DefaultNameFilter&gt;<\/strong><strong>();<\/strong><\/p>\n<pre>            });\r\n        }<\/pre>\n<div class=\"cnblogs_code_toolbar\"><span class=\"cnblogs_code_copy\"><a title=\"\u590d\u5236\u4ee3\u7801\" rel=\"noopener\"><img decoding=\"async\" src=\"https:\/\/common.cnblogs.com\/images\/copycode.gif\" alt=\"\u590d\u5236\u4ee3\u7801\" \/><\/a><\/span><\/div>\n<div class=\"cnblogs_code_toolbar\"><span class=\"cnblogs_code_copy\"><a title=\"\u590d\u5236\u4ee3\u7801\"><img decoding=\"async\" src=\"https:\/\/assets.cnblogs.com\/images\/copycode.gif\" alt=\"\u590d\u5236\u4ee3\u7801\" \/><\/a><\/span><\/div>\n<\/div>\n<p>\u6216\u8005\u81ea\u5b9a\u4e49\u4e00\u4e2a\u5c5e\u6027\u6807\u7b7e\uff0c\u5185\u90e8\u7684\u4ee3\u7801\u662f\u4e00\u6837\u7684\uff1a<\/p>\n<div class=\"cnblogs_code\">\n<div class=\"cnblogs_code_toolbar\"><span class=\"cnblogs_code_copy\"><a title=\"\u590d\u5236\u4ee3\u7801\"><img decoding=\"async\" src=\"https:\/\/assets.cnblogs.com\/images\/copycode.gif\" alt=\"\u590d\u5236\u4ee3\u7801\" \/><\/a><\/span><\/div>\n<div class=\"cnblogs_code_toolbar\"><span class=\"cnblogs_code_copy\"><a title=\"\u590d\u5236\u4ee3\u7801\" rel=\"noopener\"><img decoding=\"async\" src=\"https:\/\/common.cnblogs.com\/images\/copycode.gif\" alt=\"\u590d\u5236\u4ee3\u7801\" \/><\/a><\/span><\/div>\n<pre>using System;\r\nusing System.Threading.Tasks;\r\nusing Microsoft.AspNetCore.Mvc.Filters;\r\n\r\nnamespace MyRestful.Api.Filters\r\n{\r\n    public class DefaultUserNameFilterAttribute:<\/pre>\n<p><strong>Attribute, IActionFilter, IAsyncActionFilter<\/strong><\/p>\n<pre>    {\r\n        public void OnActionExecuting(ActionExecutingContext context)\r\n        {\r\n            context.ActionDescriptor.RouteValues[\"name\"] = \"Anonymous\";\r\n        }\r\n\r\n        public void OnActionExecuted(ActionExecutedContext context)\r\n        {\r\n            context.HttpContext.Response.Headers[\"X-Name\"] = context.ActionDescriptor.RouteValues[\"name\"];\r\n        }\r\n\r\n        public async Task OnActionExecutionAsync(ActionExecutingContext context, ActionExecutionDelegate next)\r\n        {\r\n            OnActionExecuting(context);\r\n            var result = await next();\r\n            OnActionExecuted(result);\r\n        }\r\n    }\r\n}<\/pre>\n<div class=\"cnblogs_code_toolbar\"><span class=\"cnblogs_code_copy\"><a title=\"\u590d\u5236\u4ee3\u7801\" rel=\"noopener\"><img decoding=\"async\" src=\"https:\/\/common.cnblogs.com\/images\/copycode.gif\" alt=\"\u590d\u5236\u4ee3\u7801\" \/><\/a><\/span><\/div>\n<div class=\"cnblogs_code_toolbar\"><span class=\"cnblogs_code_copy\"><a title=\"\u590d\u5236\u4ee3\u7801\"><img decoding=\"async\" src=\"https:\/\/assets.cnblogs.com\/images\/copycode.gif\" alt=\"\u590d\u5236\u4ee3\u7801\" \/><\/a><\/span><\/div>\n<\/div>\n<p>&nbsp;<\/p>\n<p>\u7136\u540e\u628a\u8be5\u6807\u7b7e\u7528\u5728Action\u65b9\u6cd5\u4e0a\u5373\u53ef\uff1a<\/p>\n<div class=\"cnblogs_code\">\n<div class=\"cnblogs_code_toolbar\"><span class=\"cnblogs_code_copy\"><a title=\"\u590d\u5236\u4ee3\u7801\"><img decoding=\"async\" src=\"https:\/\/assets.cnblogs.com\/images\/copycode.gif\" alt=\"\u590d\u5236\u4ee3\u7801\" \/><\/a><\/span><\/div>\n<div class=\"cnblogs_code_toolbar\"><span class=\"cnblogs_code_copy\"><a title=\"\u590d\u5236\u4ee3\u7801\" rel=\"noopener\"><img decoding=\"async\" src=\"https:\/\/common.cnblogs.com\/images\/copycode.gif\" alt=\"\u590d\u5236\u4ee3\u7801\" \/><\/a><\/span><\/div>\n<p><strong> [DefaultUserNameFilter]<\/strong><\/p>\n<pre>        [HttpGet(\"first\/{id}\")]\r\n        public IActionResult FindFirstPerson(int id, string name)\r\n        {\r\n            return null;\r\n        }<\/pre>\n<div class=\"cnblogs_code_toolbar\"><span class=\"cnblogs_code_copy\"><a title=\"\u590d\u5236\u4ee3\u7801\" rel=\"noopener\"><img decoding=\"async\" src=\"https:\/\/common.cnblogs.com\/images\/copycode.gif\" alt=\"\u590d\u5236\u4ee3\u7801\" \/><\/a><\/span><\/div>\n<div class=\"cnblogs_code_toolbar\"><span class=\"cnblogs_code_copy\"><a title=\"\u590d\u5236\u4ee3\u7801\"><img decoding=\"async\" src=\"https:\/\/assets.cnblogs.com\/images\/copycode.gif\" alt=\"\u590d\u5236\u4ee3\u7801\" \/><\/a><\/span><\/div>\n<\/div>\n<p><img decoding=\"async\" class=\"medium-zoom-image\" src=\"https:\/\/images2018.cnblogs.com\/blog\/986268\/201805\/986268-20180509165306347-1247704719.png\" alt=\"\" \/><\/p>\n<h2>\u683c\u5f0f\u5316\u54cd\u5e94\u7ed3\u679c<\/h2>\n<p>Action\u7684\u7ed3\u679c\u6700\u597d\u4f7f\u7528<strong>IActionResult<\/strong>, \u4f46\u4e5f\u53ef\u4ee5\u4f7f\u7528\u5176\u4ed6\u7c7b\u578b\uff0c\u4f8b\u5982IEnumerable&lt;T&gt;\u7b49\u3002\u5f3a\u5236\u7ed3\u679c\u8f93\u51fa\u4e3a\u7279\u5b9a\u7684\u7c7b\u578b\u53ef\u4ee5\u901a\u8fc7\u8c03\u7528\u7279\u5b9a\u7684\u65b9\u6cd5\u6765\u5b9e\u73b0\uff0c\u4f8b\u5982JsonResponse\u5c31\u662f\u8f93\u51faJSON\uff0cContentResponse\u5c31\u662f\u8f93\u51fa\u6587\u672c\u3002\u53e6\u5916\u4e5f\u53ef\u4ee5\u4f7f\u7528[Produces(xxx)] \u8fd9\u4e2a\u8fc7\u6ee4\u5668\uff0c\u5b83\u53ef\u4ee5\u5e94\u7528\u4e8e\u5168\u5c40\uff0ccontroller\u6216\u8005Action\u3002<\/p>\n<p>\u5728REST\u670d\u52a1\u91cc\uff0c\u6709\u4e2a\u8bcd\u53eb<strong>\u5185\u5bb9\u534f\u5546<\/strong>\uff0c\u5b83\u8868\u793a\u5ba2\u6237\u7aef\u901a\u8fc7Accept Header\u91cc\u7684media-type\u6765\u6307\u5b9a\u6240\u9700\u7684\u7ed3\u679c\u683c\u5f0f\u3002<\/p>\n<p>ASP.NET Core MVC 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class=\"medium-zoom-image\" src=\"https:\/\/images2018.cnblogs.com\/blog\/986268\/201805\/986268-20180509164813822-1298544194.png\" alt=\"\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>\u4eca\u5929\u5148\u5199\u5230\u8fd9\uff0c\u8fd8\u6ca1\u6709\u5207\u5165\u6b63\u9898\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>cc from \u4ec0\u4e48\u662fREST 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