自定义ASP.NET MVC 404错误页面的路由

来自Tipila的更多信息- 使用自定义错误页面ASP.NET MVC

此解决方案不需要web.config文件更改或catch-all路由.

首先,创建一个这样的控制器;

public class ErrorController : Controller
{
    public ActionResult Index()
    {
        ViewBag.Title = "Regular Error";
        return View();
    }

    public ActionResult NotFound404()
    {
        ViewBag.Title = "Error 404 - File not Found";
        return View("Index");
    }
}

然后在"Views/Error/Index.cshtml"下创建视图;

 @{
      Layout = "~/Views/Shared/_Layout.cshtml";
  }                     
  
We're sorry, page you're looking for is, sadly, not here.

然后在Global asax文件中添加以下内容,如下所示:

protected void Application_Error(object sender, EventArgs e)
{
        // Do whatever you want to do with the error

        //Show the custom error page...
        Server.ClearError(); 
        var routeData = new RouteData();
        routeData.Values["controller"] = "Error";

        if ((Context.Server.GetLastError() is HttpException) && ((Context.Server.GetLastError() as HttpException).GetHttpCode() != 404))
        {
            routeData.Values["action"] = "Index";
        }
        else
        {
            // Handle 404 error and response code
            Response.StatusCode = 404;
            routeData.Values["action"] = "NotFound404";
        } 
        Response.TrySkipIisCustomErrors = true; // If you are using IIS7, have this line
        IController errorsController = new ErrorController();
        HttpContextWrapper wrapper = new HttpContextWrapper(Context);
        var rc = new System.Web.Routing.RequestContext(wrapper, routeData);
        errorsController.Execute(rc);

        Response.End();
}

如果在执行此操作后仍然出现自定义IIS错误页面,请确保在Web配置文件中注释掉(或清空)以下部分:

只需在路由表的末尾添加catch all route并显示您想要的任何页面.

请参阅:如何捕获所有路由以处理ASP.NET MVC的"未找到404页面"查询？

如果您在MVC 4中工作,您可以观看此解决方案,它对我有用.

将以下Application_Error方法添加到我的Global.asax:

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

    RouteData routeData = new RouteData();
    routeData.Values.Add("controller", "Error");
    routeData.Values.Add("action", "Index");
    routeData.Values.Add("exception", exception);

    if (exception.GetType() == typeof(HttpException))
    {
        routeData.Values.Add("statusCode", ((HttpException)exception).GetHttpCode());
    }
    else
    {
        routeData.Values.Add("statusCode", 500);
    }

    IController controller = new ErrorController();
    controller.Execute(new RequestContext(new HttpContextWrapper(Context), routeData));
    Response.End();

控制器本身非常简单:

public class ErrorController : Controller
{
    public ActionResult Index(int statusCode, Exception exception)
    {
        Response.StatusCode = statusCode;
        return View();
    }
}

在GitHub上查看Mvc4CustomErrorPage的完整源代码.