Asp.net mvc 覆盖基础 controller 中的 OnException 不断传播到 Application_Error

Question

我正在尝试返回一个视图，而不是根据我的应用程序可能发生的某些错误向用户发出重定向，我想处理这些错误并将它们记录在我的基础 controller 中，我不希望错误传播到我的Global.asax - Application_Error() 方法，因为我希望此方法能够处理我的应用程序中的任何其他错误，例如用户输入虚假的 URL，有人找到解决方法吗？

注意：我留下了我的注释代码，因为我有一些问题的解决方法，这也表明我有多个可能处理的异常......

编辑：如果我在此 OnException 中发出 RedirectToAction 覆盖，一切都按预期工作，但我只想返回视图而不是重定向......

我的基础 controller 方法是：

    protected override void OnException(ExceptionContext filterContext)
    {
        //dont interfere if the exception is already handled
        if (filterContext.ExceptionHandled)
            return;

        //let the next request know what went wrong
        filterContext.Controller.TempData["exception"] = filterContext.Exception;

        //log exception
        _logging.Error(User.Identity.Name, ExceptionHelper.BuildWebExceptionMessage(filterContext.Exception));


        //set up redirect to my global error handler
        //if (filterContext.Exception.GetType() == typeof(NoAccessException))
        //    filterContext.Result = View(new RouteValueDictionary
        //    (new { area = "", controller = "Error", action = "PublicError" }));

        //else {
        //Only return view, no need for redirection
        filterContext.Result = View(new RouteValueDictionary
        (new { area = "", controller = "Error", action = "NoAccess" }));
        //}
        //advise subsequent exception filters not to interfere and stop
        // asp.net from showing yellow screen of death
        filterContext.ExceptionHandled = true;

        //erase any output already generated
        filterContext.HttpContext.Response.Clear();

        //base.OnException(filterContext);
    }

此方法应处理可能出现在我的应用程序中的任何其他错误，我不希望在我的 Application_Error() 中处理上述错误

protected void Application_Error()
        {

            Exception exception = Server.GetLastError();
            // Log the exception.

            var logger = Container.Get<ILoggingService>();
            logger.Error(User.Identity.Name, ExceptionHelper.BuildWebExceptionMessage(exception));

            Response.Clear();

            HttpException httpException = exception as HttpException;

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

            //if (httpException == null)
            //{
            routeData.Values.Add("action", "PublicError");
            //}
            //else //It's an Http Exception, Let's handle it.
            //{
            //    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 ErrorController();
            errorController.Execute(new RequestContext(
                 new HttpContextWrapper(Context), routeData));
        }

Answer 1

以下应该有效：

protected override void OnException(ExceptionContext filterContext)
{
    if (filterContext.ExceptionHandled)
    {
        return;
    }
    filterContext.Result = new ViewResult
    {
        ViewName = "~/Views/Shared/Error.aspx"
    };
    filterContext.ExceptionHandled = true;
}

还要确保在这个方法中没有抛出异常，否则它将传播到Application_Error 。