{"id":128,"date":"2010-07-27T19:25:39","date_gmt":"2010-07-27T19:25:39","guid":{"rendered":"76dc611d6ebaafc66cc0879c71b5db5c"},"modified":"2010-07-27T19:25:39","modified_gmt":"2010-07-27T19:25:39","slug":"","status":"publish","type":"post","link":"https:\/\/www.xiaobo.li\/notes\/archives\/128","title":{"rendered":"ASP.NET MVC \u7406\u89e3"},"content":{"rendered":"

\u4e00.\u6458\u8981<\/span>
\n<\/h2>\n

\u4e00\u4e2aUrl\u8bf7\u6c42\u7ecf\u8fc7\u4e86Routing\u5904\u7406\u540e\u4f1a\u8c03\u7528Controller\u7684Action\u65b9\u6cd5. \u4e2d\u95f4\u7684\u8fc7\u7a0b\u662f\u600e\u6837\u7684? Action\u65b9\u6cd5\u4e2d\u8fd4\u56deActionResult\u5bf9\u8c61\u540e,\u5982\u4f55\u5230\u8fbeView\u7684? \u672c\u6587\u5c06\u8bb2\u89e3Controller\u7684\u57fa\u672c\u7528\u6cd5,  \u6df1\u5165\u5206\u6790Controller\u7684\u8fd0\u884c\u673a\u5236, \u5e76\u4e14\u63d0\u4f9b\u4e86\u521b\u5efa\u6240\u6709\u7c7b\u578bAction\u7684\u4ee3\u7801. \u503c\u5f97\u5b66\u4e60ASP.NET MVC\u65f6\u53c2\u8003.<\/span>\n<\/p>\n

\u4e8c.\u627f\u4e0a\u542f\u4e0b<\/span>
\n<\/h2>\n

\u5728\u4e0a\u4e00\u7bc7\u6587\u7ae0\u4e2d, \u6211\u5df2\u7ecf\u5b66\u4f1a\u4e86\u5982\u4f55\u4f7f\u7528Routing\u83b7\u53d6Controller\u548cAction, \u968f\u540e\u7684\u7a0b\u5e8f\u4f1a\u8c03\u7528Controller\u4e2d\u7684Action\u65b9\u6cd5.<\/span>\n<\/p>\n

\u6bcf\u4e2aAction\u65b9\u6cd5\u90fd\u8981\u8fd4\u56de\u4e00\u4e2aActionResult\u5bf9\u8c61. \u4e00\u4e2aAction\u4f1a\u5c06\u6570\u636e\u4f20\u9012\u7ed9View,\u5982\u56fe:<\/span>\n<\/p>\n

\"image\"<\/a>\n<\/p>\n

\u4e09.Controller\u4e0eAction\u7684\u4f5c\u7528<\/span>
\n<\/h2>\n

1.\u804c\u8d23<\/span>
\n<\/h3>\n

Controller\u8d1f\u8d23\u5c06\u83b7\u53d6Model\u6570\u636e\u5e76\u5c06Model\u4f20\u9012\u7ed9View\u5bf9\u8c61.\u901a\u77e5View\u5bf9\u8c61\u663e\u793a.<\/span>\n<\/p>\n

2.ASP.NET MVC\u4e2d\u7684Controller\u548cAction<\/span>
\n<\/h3>\n

\u5728ASP.NET MVC\u4e2d, \u4e00\u4e2aController\u53ef\u4ee5\u5305\u542b\u591a\u4e2aAction. \u6bcf\u4e00\u4e2aAction\u90fd\u662f\u4e00\u4e2a\u65b9\u6cd5, \u8fd4\u56de\u4e00\u4e2aActionResult\u5b9e\u4f8b. <\/span>\n<\/p>\n

ActionResult\u7c7b\u5305\u62ecExecuteResult\u65b9\u6cd5, \u5f53ActionResult\u5bf9\u8c61\u8fd4\u56de\u540e\u4f1a\u6267\u884c\u6b64\u65b9\u6cd5. <\/span>\n<\/p>\n

\u4e0b\u9762\u5206\u5c42\u6b21\u7684\u603b\u7ed3Controller \u5904\u7406\u6d41\u7a0b:<\/span>
\n<\/h4>\n

1. \u9875\u9762\u5904\u7406\u6d41\u7a0b<\/span>
\n<\/h4>\n

\u53d1\u9001\u8bf7\u6c42 –> UrlRoutingModule\u6355\u83b7\u8bf7\u6c42 –> MvcRouteHandler.GetHttpHandler() –> <\/span>
\nMvcHandler.ProcessRequest()<\/strong>\n<\/p>\n

2.MvcHandler.ProcessRequest() \u5904\u7406\u6d41\u7a0b:<\/span>
\n<\/h4>\n

\u4f7f\u7528\u5de5\u5382\u65b9\u6cd5\u83b7\u53d6\u5177\u4f53\u7684Controller –> <\/span>
\nController.Execute()<\/strong>
\n –> \u91ca\u653eController\u5bf9\u8c61<\/p>\n

3.Controller.Execute() \u5904\u7406\u6d41\u7a0b<\/span>
\n<\/h4>\n

\u83b7\u53d6Action –> \u8c03\u7528Action\u65b9\u6cd5\u83b7\u53d6\u8fd4\u56de\u7684ActionResult –> \u8c03\u7528<\/span>
\nActionResult.ExecuteResult()<\/strong>
\n \u65b9\u6cd5<\/p>\n

4.ActionResult.ExecuteResult() \u5904\u7406\u6d41\u7a0b<\/span>
\n<\/h4>\n

\u83b7\u53d6IView\u5bf9\u8c61-> \u6839\u636eIView\u5bf9\u8c61\u4e2d\u7684\u9875\u9762\u8def\u5f84\u83b7\u53d6Page\u7c7b-> \u8c03\u7528<\/span>
\nIView.RenderView()<\/strong>
\n \u65b9\u6cd5(\u5185\u90e8\u8c03\u7528Page.RenderView\u65b9\u6cd5)<\/p>\n

\u901a\u8fc7\u5bf9MVC\u6e90\u4ee3\u7801\u7684\u5206\u6790,\u6211\u4eec\u4e86\u89e3\u5230Controller\u5bf9\u8c61\u7684\u804c\u8d23\u662f\u4f20\u9012\u6570\u636e,\u83b7\u53d6View\u5bf9\u8c61(\u5b9e\u73b0\u4e86IView\u63a5\u53e3\u7684\u7c7b),\u901a\u77e5View\u5bf9\u8c61\u663e\u793a.<\/span>\n<\/p>\n

View\u5bf9\u8c61\u7684\u4f5c\u7528\u662f\u663e\u793a.\u867d\u7136\u663e\u793a\u7684\u65b9\u6cd5RenderView()\u662f\u7531Controller\u8c03\u7528\u7684,\u4f46\u662fController\u4ec5\u4ec5\u662f\u4e00\u4e2a"\u6307\u6325\u5b98"\u7684\u4f5c\u7528, \u5177\u4f53\u7684\u663e\u793a\u903b\u8f91\u4ecd\u7136\u5728View\u5bf9\u8c61\u4e2d.<\/span>\n<\/p>\n

\u9700\u8981\u6ce8\u610fIView\u63a5\u53e3\u4e0e\u5177\u4f53\u7684ViewPage\u4e4b\u95f4\u7684\u8054\u7cfb.\u5728Controller\u548cView\u4e4b\u95f4\u8fd8\u5b58\u5728\u7740IView\u5bf9\u8c61.\u5bf9\u4e8eASP.NET\u7a0b\u5e8f\u63d0\u4f9b\u4e86WebFormView\u5bf9\u8c61\u5b9e\u73b0\u4e86IView\u63a5\u53e3.WebFormView\u8d1f\u8d23\u6839\u636e\u865a\u62df\u76ee\u5f55\u83b7\u53d6\u5177\u4f53\u7684Page\u7c7b,\u7136\u540e\u8c03\u7528Page.RenderView().<\/span>\n<\/p>\n

\u56db.ActionResult\u89e3\u6790<\/span>
\n<\/h2>\n

\u901a\u8fc7\u4e0a\u9762\u7684\u6d41\u7a0b,\u6211\u4eec\u77e5\u9053\u4e86ActionResult\u5bf9\u8c61\u5728\u6574\u4e2a\u6d41\u7a0b\u4e2d\u7684\u4f5c\u7528.ActionResult\u662f\u4e00\u4e2a\u62bd\u8c61\u7c7b, \u5728Action\u4e2d\u8fd4\u56de\u7684\u90fd\u662f\u5176\u6d3e\u751f\u7c7b.\u4e0b\u9762\u662f\u6211\u6574\u7406\u7684ASP.NET MVC 1.0 \u7248\u672c\u4e2d\u63d0\u4f9b\u7684ActionResult\u6d3e\u751f\u7c7b:<\/span>\n<\/p>\n

 <\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u7c7b\u540d<\/span>\n<\/td>\n\u62bd\u8c61\u7c7b<\/span>\n<\/td>\n\u7236\u7c7b<\/span>\n<\/td>\n\u529f\u80fd<\/span>\n<\/td>\n<\/tr>\n
ContentResult<\/span>\n<\/td>\n <\/td>\n <\/td>\n\u6839\u636e\u5185\u5bb9\u7684\u7c7b\u578b\u548c\u7f16\u7801,\u6570\u636e\u5185\u5bb9.<\/span>\n<\/td>\n<\/tr>\n
EmptyResult<\/span>\n<\/td>\n <\/td>\n <\/td>\n\u7a7a\u65b9\u6cd5.<\/span>\n<\/td>\n<\/tr>\n
FileResult <\/span>\n<\/td>\nabstract<\/span>\n<\/td>\n <\/td>\n\u5199\u5165\u6587\u4ef6\u5185\u5bb9,\u5177\u4f53\u7684\u5199\u5165\u65b9\u5f0f\u5728\u6d3e\u751f\u7c7b\u4e2d.<\/span>\n<\/td>\n<\/tr>\n
FileContentResult<\/span>\n<\/td>\n <\/td>\nFileResult <\/span>\n<\/td>\n\u901a\u8fc7 \u6587\u4ef6byte[] \u5199\u5165\u6587\u4ef6.<\/span>\n<\/td>\n<\/tr>\n
FilePathResult<\/span>\n<\/td>\n <\/td>\nFileResult <\/span>\n<\/td>\n\u901a\u8fc7 \u6587\u4ef6\u8def\u5f84 \u5199\u5165\u6587\u4ef6.<\/span>\n<\/td>\n<\/tr>\n
FileStreamResult<\/span>\n<\/td>\n <\/td>\nFileResult <\/span>\n<\/td>\n\u901a\u8fc7 \u6587\u4ef6Stream \u5199\u5165\u6587\u4ef6.<\/span>\n<\/td>\n<\/tr>\n
HttpUnauthorizedResult<\/span>\n<\/td>\n <\/td>\n <\/td>\n\u629b\u51fa401\u9519\u8bef<\/span>\n<\/td>\n<\/tr>\n
JavaScriptResult <\/span>\n<\/td>\n <\/td>\n <\/td>\n\u8fd4\u56dejavascript\u6587\u4ef6<\/span>\n<\/td>\n<\/tr>\n
JsonResult <\/span>\n<\/td>\n <\/td>\n <\/td>\n\u8fd4\u56deJson\u683c\u5f0f\u7684\u6570\u636e<\/span>\n<\/td>\n<\/tr>\n
RedirectResult <\/span>\n<\/td>\n <\/td>\n <\/td>\n\u4f7f\u7528Response.Redirect\u91cd\u5b9a\u5411\u9875\u9762<\/span>\n<\/td>\n<\/tr>\n
RedirectToRouteResult <\/span>\n<\/td>\n <\/td>\n <\/td>\n\u6839\u636eRoute\u89c4\u5219\u91cd\u5b9a\u5411\u9875\u9762<\/span>\n<\/td>\n<\/tr>\n
ViewResultBase <\/span>\n<\/td>\nabstract<\/span>\n<\/td>\n <\/td>\n\u8c03\u7528IView.Render()<\/span>\n<\/td>\n<\/tr>\n
PartialViewResult <\/span>\n<\/td>\n <\/td>\nViewResultBase <\/span>\n<\/td>\n\u8c03\u7528\u7236\u7c7bViewResultBase \u7684ExecuteResult\u65b9\u6cd5. <\/span>
\n
\u91cd\u5199\u4e86\u7236\u7c7b\u7684FindView\u65b9\u6cd5. <\/span>
\n
\u5bfb\u627e\u7528\u6237\u63a7\u4ef6.ascx\u6587\u4ef6<\/span>\n<\/td>\n<\/tr>\n
ViewResult <\/span>\n<\/td>\n <\/td>\nViewResultBase <\/span>\n<\/td>\n\u8c03\u7528\u7236\u7c7bViewResultBase \u7684ExecuteResult\u65b9\u6cd5. <\/span>
\n
\u91cd\u5199\u4e86\u7236\u7c7b\u7684FindView\u65b9\u6cd5. <\/span>
\n
\u5bfb\u627e\u9875\u9762.aspx\u6587\u4ef6<\/span>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u76ee\u524dASP.NET MVC\u8fd8\u6ca1\u6709\u63d0\u4f9b\u5b98\u65b9\u7684ActionResult\u5217\u8868.\u4e0a\u9762\u7684\u5217\u8868\u662f\u6211\u5728\u6e90\u4ee3\u7801\u4e2d\u5206\u6790\u5f97\u51fa\u7684.\u6709\u4e9b\u89e3\u91ca\u7684\u53ef\u80fd\u4e0d\u591f\u6e05\u695a,\u8bf7\u8c05\u89e3.<\/span>\n<\/p>\n

\u4e0b\u9762\u6211\u5c06\u5217\u4e3e\u5404\u4e2aActionResult\u7684\u5b9e\u4f8b.<\/span>\n<\/p>\n

\u4e94.\u5b9e\u4f8b\u5e94\u7528<\/span>
\n<\/h2>\n

1.\u6dfb\u52a0Controller<\/span>
\n<\/h3>\n

\u5b89\u88c5\u4e86ASP.NET MVC\u540e, \u5728\u9879\u76ee\u4e0a\u70b9\u51fb\u53f3\u952e\u4f1a\u627e\u5230\u6dfb\u52a0Controller\u9879:<\/span>\n<\/p>\n

\"image\"<\/a>\n<\/p>\n

2.\u6dfb\u52a0Action<\/span>
\n<\/h3>\n

\u4e0b\u9762\u8fd9\u4e2a\u7c7b\u63d0\u4f9b\u4e86\u8fd4\u56de\u5404\u79cd\u7c7b\u578b\u7684ActionResult\u7684Action\u5b9e\u4f8b:<\/span>\n<\/p>\n

public<\/span>\r\n class<\/span>\r\n DemoController : Controller\r\n    {\r\n\r\n        <\/span>\r\n\/\/\/ <summary><\/span>\r\n\r\n        \/\/\/ http:\/\/localhost:1847\/Demo\/ContentResultDemo<\/span>\r\n\r\n        \/\/\/ <\/summary><\/span>\r\n\r\n        \/\/\/ <returns><\/returns><\/span>\r\n\r\n        public<\/span>\r\n ActionResult ContentResultDemo()\r\n        {\r\n            <\/span>\r\nstring<\/span>\r\n contentString = <\/span>\r\n"ContextResultDemo!"<\/span>\r\n;\r\n            <\/span>\r\nreturn<\/span>\r\n Content(contentString);\r\n        }\r\n\r\n        <\/span>\r\n\/\/\/ <summary><\/span>\r\n\r\n        \/\/\/ http:\/\/localhost:1847\/Demo\/EmptyResultDemo<\/span>\r\n\r\n        \/\/\/ <\/summary><\/span>\r\n\r\n        \/\/\/ <returns><\/returns><\/span>\r\n\r\n        public<\/span>\r\n ActionResult EmptyResultDemo()\r\n        {\r\n            <\/span>\r\nreturn<\/span>\r\n  new<\/span>\r\n EmptyResult();\r\n        }\r\n\r\n        <\/span>\r\n\/\/\/ <summary><\/span>\r\n\r\n        \/\/\/ http:\/\/localhost:1847\/Demo\/FileContentResultDemo<\/span>\r\n\r\n        \/\/\/ <\/summary><\/span>\r\n\r\n        \/\/\/ <returns><\/returns><\/span>\r\n\r\n        public<\/span>\r\n ActionResult FileContentResultDemo()\r\n        {\r\n            FileStream fs = <\/span>\r\nnew<\/span>\r\n FileStream(Server.MapPath(<\/span>\r\n@"\/resource\/Images\/1.gif"<\/span>\r\n), FileMode.Open, FileAccess.Read);\r\n            <\/span>\r\nbyte<\/span>\r\n[] buffer = <\/span>\r\nnew<\/span>\r\n byte<\/span>\r\n[Convert.ToInt32(fs.Length)];\r\n            fs.Read(buffer, 0, Convert.ToInt32(fs.Length) );\r\n            <\/span>\r\nreturn<\/span>\r\n File(buffer, <\/span>\r\n@"image\/gif"<\/span>\r\n);\r\n        }\r\n\r\n        <\/span>\r\n\/\/\/ <summary><\/span>\r\n\r\n        \/\/\/ http:\/\/localhost:1847\/Demo\/FilePathResultDemo<\/span>\r\n\r\n        \/\/\/ <\/summary><\/span>\r\n\r\n        \/\/\/ <returns><\/returns><\/span>\r\n\r\n        public<\/span>\r\n ActionResult FilePathResultDemo()\r\n        {\r\n            <\/span>\r\n\/\/\u53ef\u4ee5\u5c06\u4e00\u4e2ajpg\u683c\u5f0f\u7684\u56fe\u50cf\u8f93\u51fa\u4e3agif\u683c\u5f0f<\/span>\r\n\r\n            return<\/span>\r\n File(Server.MapPath(<\/span>\r\n@"\/resource\/Images\/2.jpg"<\/span>\r\n), <\/span>\r\n@"image\/gif"<\/span>\r\n);\r\n        }\r\n\r\n        <\/span>\r\n\/\/\/ <summary><\/span>\r\n\r\n        \/\/\/ http:\/\/localhost:1847\/Demo\/FileStreamResultDemo<\/span>\r\n\r\n        \/\/\/ <\/summary><\/span>\r\n\r\n        \/\/\/ <returns><\/returns><\/span>\r\n\r\n        public<\/span>\r\n ActionResult FileStreamResultDemo()\r\n        {            \r\n            FileStream fs = <\/span>\r\nnew<\/span>\r\n FileStream(Server.MapPath(<\/span>\r\n@"\/resource\/Images\/1.gif"<\/span>\r\n), FileMode.Open, FileAccess.Read);\r\n            <\/span>\r\nreturn<\/span>\r\n File(fs, <\/span>\r\n@"image\/gif"<\/span>\r\n);\r\n        }\r\n\r\n        <\/span>\r\n\/\/\/ <summary><\/span>\r\n\r\n        \/\/\/ http:\/\/localhost:1847\/Demo\/HttpUnauthorizedResultDemo<\/span>\r\n\r\n        \/\/\/ <\/summary><\/span>\r\n\r\n        \/\/\/ <returns><\/returns><\/span>\r\n\r\n        public<\/span>\r\n ActionResult HttpUnauthorizedResultDemo()\r\n        {\r\n            <\/span>\r\nreturn<\/span>\r\n new<\/span>\r\n HttpUnauthorizedResult();\r\n        }\r\n\r\n        <\/span>\r\n\/\/\/ <summary><\/span>\r\n\r\n        \/\/\/ http:\/\/localhost:1847\/Demo\/JavaScriptResultDemo<\/span>\r\n\r\n        \/\/\/ <\/summary><\/span>\r\n\r\n        \/\/\/ <returns><\/returns><\/span>\r\n\r\n        public<\/span>\r\n ActionResult JavaScriptResultDemo()\r\n        {\r\n            <\/span>\r\nreturn<\/span>\r\n JavaScript(<\/span>\r\n@"alert("<\/span>\r\n"Test JavaScriptResultDemo!"<\/span>\r\n")"<\/span>\r\n);\r\n        }\r\n\r\n        <\/span>\r\n\/\/\/ <summary><\/span>\r\n\r\n        \/\/\/ http:\/\/localhost:1847\/Demo\/JsonResultDemo<\/span>\r\n\r\n        \/\/\/ <\/summary><\/span>\r\n\r\n        \/\/\/ <returns><\/returns><\/span>\r\n\r\n        public<\/span>\r\n ActionResult JsonResultDemo()\r\n        {\r\n            var tempObj = <\/span>\r\nnew<\/span>\r\n { Controller = <\/span>\r\n"DemoController"<\/span>\r\n, Action = <\/span>\r\n"JsonResultDemo"<\/span>\r\n };\r\n            <\/span>\r\nreturn<\/span>\r\n Json(tempObj);\r\n        }\r\n\r\n        <\/span>\r\n\/\/\/ <summary><\/span>\r\n\r\n        \/\/\/ http:\/\/localhost:1847\/Demo\/RedirectResultDemo<\/span>\r\n\r\n        \/\/\/ <\/summary><\/span>\r\n\r\n        \/\/\/ <returns><\/returns><\/span>\r\n\r\n        public<\/span>\r\n ActionResult RedirectResultDemo()\r\n        {\r\n            <\/span>\r\nreturn<\/span>\r\n Redirect(<\/span>\r\n@"http:\/\/localhost:1847\/Demo\/ContentResultDemo"<\/span>\r\n);\r\n        }\r\n\r\n        <\/span>\r\n\/\/\/ <summary><\/span>\r\n\r\n        \/\/\/ http:\/\/localhost:1847\/Demo\/RedirectToRouteResultDemo<\/span>\r\n\r\n        \/\/\/ <\/summary><\/span>\r\n\r\n        \/\/\/ <returns><\/returns><\/span>\r\n\r\n        public<\/span>\r\n ActionResult RedirectToRouteResultDemo()\r\n        {\r\n            <\/span>\r\nreturn<\/span>\r\n RedirectToAction(<\/span>\r\n@"FileStreamResultDemo"<\/span>\r\n);\r\n        }\r\n\r\n        <\/span>\r\n\/\/\/ <summary><\/span>\r\n\r\n        \/\/\/ http:\/\/localhost:1847\/Demo\/PartialViewResultDemo<\/span>\r\n\r\n        \/\/\/ <\/summary><\/span>\r\n\r\n        \/\/\/ <returns><\/returns><\/span>\r\n\r\n        public<\/span>\r\n ActionResult PartialViewResultDemo()\r\n        {\r\n            <\/span>\r\nreturn<\/span>\r\n PartialView();\r\n        }\r\n\r\n        <\/span>\r\n\/\/\/ <summary><\/span>\r\n\r\n        \/\/\/ http:\/\/localhost:1847\/Demo\/RedirectToRouteResultDemo<\/span>\r\n\r\n        \/\/\/ <\/summary><\/span>\r\n\r\n        \/\/\/ <returns><\/returns><\/span>\r\n\r\n        public<\/span>\r\n ActionResult ViewResultDemo()\r\n        {\r\n            <\/span>\r\n\/\/\u5982\u679c\u6ca1\u6709\u4f20\u5165View\u540d\u79f0, \u9ed8\u8ba4\u5bfb\u627e\u4e0eAction\u540d\u79f0\u76f8\u540c\u7684View\u9875\u9762.<\/span>\r\n\r\n            return<\/span>\r\n View();\r\n        }\r\n\r\n    }<\/span>\r\n<\/pre>\n