自定义ASP.NET MVC 404错误页面的路由

@{
    ViewBag.Title = "Error";
}

<h2>404 - 页面未找到</h2>

protected void Application_Error(object sender, EventArgs e)
{
    Exception exception = Server.GetLastError();
    HttpException httpException = exception as HttpException;

    if (httpException != null && httpException.GetHttpCode() == 404)
    {
        Server.ClearError();
        Response.Clear();
        Response.StatusCode = 404;
        Response.TrySkipIisCustomErrors = true;

        HttpContext.Current.RewritePath(Request.ApplicationPath + "/Error");
        IController errorController = new ErrorController();
        errorController.Execute(new RequestContext(new HttpContextWrapper(Context), new RouteData()));
    }
}

public class ErrorController : Controller
{
    public ActionResult Index()
    {
        return View("Error");
    }
}

  <httpErrors errorMode="Custom" existingResponse="Replace">
   <remove statusCode="404" />
   <error statusCode="404" responseMode="ExecuteURL" path="/Error" />
  </httpErrors>
</system.webServer>