在Global中写一个Application_Error捕捉错误路由并重定向到Not Found页面。这里是全局性抓取错误路由，此处还可以写由错误路由导致访问失败的日志记录。

   protected void Application_Error(object sender, EventArgs e)

         {

             var httpContext = ((MvcApplication)sender).Context;

             var currentController = "";

             var currentAction = "";

             var currentRouterData = RouteTable.Routes.GetRouteData(new HttpContextWrapper(httpContext));

             if (currentRouterData != null)

             {

                 if (currentRouterData.Values["controller"] != null && !string.IsNullOrEmpty(currentRouterData.Values["controller"].ToString()))

                 {

                     currentController = currentRouterData.Values["controller"].ToString();

                 }

                 if (currentRouterData.Values["action"] != null && !string.IsNullOrEmpty(currentRouterData.Values["action"].ToString()))

                 {

                     currentAction = currentRouterData.Values["action"].ToString();

                 }

             }

             var ex = Server.GetLastError();

             //record error log here.

             var controller = new ErrorController();

             var routeData = new RouteData();

             var action = "Index";

             if (ex is HttpException)

             {

                 var httpEx = ex as HttpException;

                 switch (httpEx.GetHttpCode())

                 {

                     case  :

                         action = "Not Found";

                         Response.Redirect("/Error/index");

                         break;

                 }

                 httpContext.ClearError();

                 httpContext.Response.Clear();

                 httpContext.Response.StatusCode = ex is HttpException ? ((HttpException)ex).GetHttpCode() : ;

                 httpContext.Response.TrySkipIisCustomErrors = true;

                 routeData.Values["controller"] = "Error";

                 routeData.Values["action"] = action;

             }

         }

NotFound页面：

 @{

     Layout = null;

 }

 <!DOCTYPE html>

 <html>

 <head>

     <meta charset="utf-8">

     <meta name="robots" content="noindex,nofollow">

     <meta name="viewport" content="width=device-width,maximum-scale=1,user-scalable=no,minimal-ui">

     <link rel="stylesheet" type="text/css" href="https://fonts.googleapis.com/css?family=Open+Sans:400,600,800&amp;subset=latin,latin-ext">

     <link rel="stylesheet" type="text/css" href="https://cdn.travel.sygic.com/travel.sygic.com_lp/css/404.css?4aed45ea0fff817941fb48877a968cf6cc920152">

     <title>

          Not found

     </title>

 </head>

 <body>

     <div class="stars"></div>

     <div class="sun-moon">

         <div class="sun"></div>

         <div class="moon"></div>

     </div>

     <div id="js-hills" class="background hills"></div>

     <div id="js-country" class="background country"></div>

     <div id="js-foreground" class="background foreground"></div>

     <div class="error-content">

         Sorry, that page never returned<br>

         from a Consultant to the <a href="/go/region:377">Marykay</a>.

     </div>

     <a href="https://www.marykay.com.cn/" class="button-home">Go home</a>

     <div class="code">

         <span></span>

         <span></span>

         <span></span>

     </div>

 </body>

 </html>

在地址栏输入错误的路由-》效果

404页面来源于：

错误的艺术！20个创意的404错误页面设计

http://www.cnblogs.com/lhb25/p/creative-examples-of-404-error-pages.html

巴特西

Asp.Net MVC中捕捉错误路由并设置默认Not Found页面。

404页面来源于：

错误的艺术！20个创意的404错误页面设计

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