.Net Mvc：如何触发 Application_Error() 管理它们的错误？

我管理我的所有应用程序错误Application_Error() in 全局.asax:

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

    Log.LogException(exception);

    Response.Clear();

    HttpException httpException = exception as HttpException;

    RouteData routeData = new RouteData();
    routeData.Values.Add("controller", "Erro");

    if (httpException == null)
    {
        routeData.Values.Add("action", "Index");
    }
    else //It's an Http Exception
    {
        switch (httpException.GetHttpCode())
        {
            case 404:
                //Page not found
                routeData.Values.Add("action", "HttpError404");
                break;
            case 500:
                //Server error
                routeData.Values.Add("action", "HttpError500");
                break;

            // Here you can handle Views to other error codes.
            // I choose a General error template  
            default:
                routeData.Values.Add("action", "General");
                break;
        }
    }

    //Pass exception details to the target error View.
    routeData.Values.Add("error", exception);

    //Clear the error on server.
    Server.ClearError();

    //Avoid IIS7 getting in the middle
    Response.TrySkipIisCustomErrors = true;

    //Call target Controller and pass the routeData.
    IController errorController = new ErroController();
    errorController.Execute(new RequestContext(new HttpContextWrapper(Context), routeData));
}

因此，我的应用程序中有一个自定义授权属性来处理未经授权的请求，我想重定向到Application_Error()而是操纵它。

所以，我这样做：

protected override void HandleUnauthorizedRequest(AuthorizationContext context)
{
    if (context.HttpContext.Request.IsAuthenticated)
    {
        throw new HttpException(403, "Forbidden Access.");
    }
    else
    {
        base.HandleUnauthorizedRequest(context);
    }
}

这样一来Application_Error()被调用，但如此直接调用异常对我来说似乎很难看，是否存在另一种方式？你们觉得怎么样？

因为Unauthorized 不是一个错误默认情况下！！！ 只需添加这个方法即可global.asax

    protected void Application_EndRequest(object sender, EventArgs e) {
        if (Context.Response.StatusCode == 401 || Context.Response.StatusCode == 403) {
        // this is important, because the 401 is not an error by default!!!
            throw new HttpException(401, "You are not authorised");
        }
    }