ASP.NET MVC 5 - (HTTP错误404.0 - 未找到)具有长的不存在的URL

Question

我在Microsoft Visual Studio Express 2013 for Web中创建了一个新项目.它是一个ASP.NET MVC 5 - .NET Framework 4.5项目.

我想处理(无法找到资源):

我确实使用下面的代码处理它.

如果我执行类似(/ Home/kddiede/ddiij)或(/ djdied/djie/djs)的操作,此代码将起作用,这将导致显示我的自定义错误页面.

但是,当我尝试执行类似(/ Home/kddiede/ddiij/dfd/sdfds/dsf/dsfds/fd)或任何长的不存在的URL时,它会向我显示:

代码来自:http://www.codeproject.com/Articles/635324/Another-set-of-ASP-NET-MVC-4-tips

技巧16:自定义错误屏幕

错误页面位于/View/Shared/Error.cshtml中

Web.config文件

<system.web>
<customErrors mode="RemoteOnly" />
</system.web>

Global.asax中

protected void Application_EndRequest(Object sender, EventArgs e)
{
    ErrorConfig.Handle(Context);
}

ErrorConfig类

public class ErrorConfig
{
  public static void Handle(HttpContext context)
  {
    switch (context.Response.StatusCode)
    {
      //Not authorized
      case 401:
        Show(context, 401);
        break;

      //Not found
      case 404:
        Show(context, 404);
        break;
    }
  }

  static void Show(HttpContext context, Int32 code)
  {
    context.Response.Clear();

    var w = new HttpContextWrapper(context);
    var c = new ErrorController() as IController;
    var rd = new RouteData();

    rd.Values["controller"] = "Error";
    rd.Values["action"] = "Index";
    rd.Values["id"] = code.ToString();

    c.Execute(new RequestContext(w, rd));   
  }
}

ErrorController

internal class ErrorController : Controller
{
  [HttpGet]
  public ViewResult Index(Int32? id)
  {
    var statusCode = id.HasValue ? id.Value : 500;
    var error = new HandleErrorInfo(new Exception("An exception with error " + statusCode + " occurred!"), "Error", "Index");
    return View("Error", error);
  }
}

我在上面提到的网站上的最后一段代码没有添加到Global.asax中,因为它已经在FilterConfig.cs中了

public static void RegisterGlobalFilters(GlobalFilterCollection filters)
{
  filters.Add(new HandleErrorAttribute());
}

任何人都知道如何解决它？

提前致谢.

Answer 1

解决了.要将所有不存在的URL指向错误页面,请执行以下操作:

• 在RouteConfig.cs文件的末尾添加以下代码:

  public static void RegisterRoutes(RouteCollection routes)
  {
      // Default
      routes.MapRoute(
          name: "Default",
          url: "{controller}/{action}/{id}",
          defaults: new { controller = "Home", action = "Index", id = UrlParameter.Optional }
      );
  
      // Add this code to handle non-existing urls
      routes.MapRoute(
          name: "404-PageNotFound",
          // This will handle any non-existing urls
          url: "{*url}",
          // "Shared" is the name of your error controller, and "Error" is the action/page
          // that handles all your custom errors
          defaults: new { controller = "Shared", action = "Error" }
      );
  }
  

• 将以下代码添加到Web.config文件中:

  <configuration>
      <system.webServer>
         <modules runAllManagedModulesForAllRequests="true"></modules>
      </system.webServer>
  
      <system.web>
         <httpRuntime relaxedUrlToFileSystemMapping="true" />
      </system.web>
  </configuration>
  

这应该将所有不存在的URL(例如(/ad/asd/sa/das,d/asd,asd.asd+dpwd'=12=2e-21)指向您的错误页面.

Answer 2

另一种方法是将其添加到system.web元素内部的web.config中

<system.web>
<!-- ... -->

<!--Handle application exceptions-->
<customErrors mode="On">

  <!--Avoid YSOD on 404/403 errors like this because [HandleErrors] does not catch them-->
  <error statusCode="404" redirect="Error/Index" />
  <error statusCode="403" redirect="Error/Index" />
</customErrors>

</system.web>