asp.net mvc输出自定义404等错误页面，非302跳转。

朋友问到一个问题，如何输出自定义错误页面，不使用302跳转。当前页面地址不能改变.

还要执行一些代码等,生成一些错误信息,方便用户提交反馈.

 

500错误，mvc框架已经有现成解决方法：

filters.Add(new HandleErrorAttribute());

404错误目前想到的解决方法：

先上代码 Global.asax：

 1 protected void Application_Error(object sender, EventArgs e)
 2         {
 3             var ex = Server.GetLastError() as HttpException;
 4             if (ex == null)
 5                 return;
 6 
 7             var httpStatusCode = ex.GetHttpCode();
 8 
 9             if (httpStatusCode == 404)
10             {
11                 var httpContext = (sender as MvcApplication).Context;
12 
13                 httpContext.ClearError();
14                 httpContext.Response.Clear();
15                 httpContext.Response.StatusCode = 404;
16                 ServiceFocus.LogService.AddLog(ex);
17 
18                 httpContext.Response.ContentType = "text/html; charset=utf-8";
19                 var routeData = new RouteData();
20                 routeData.Values["controller"] = "Sys";
21                 routeData.Values["action"] = "NotFound";
22                 var requestContext = new RequestContext(new HttpContextWrapper(httpContext), routeData);
23                 var controller = ControllerBuilder.Current.GetControllerFactory().CreateController(requestContext, "Sys") as SysController;
24                 //controller.ViewData.Model=model;
25                 (controller as IController).Execute(requestContext);
26                 ControllerBuilder.Current.GetControllerFactory().ReleaseController(controller);
27             }
28         }

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