asp.net-mvc – ASP.NET MVC应用程序自定义错误页面不显示在共享

我在我的共享主机上部署的ASP.NET MVC应用程序出现了自定义错误的问题.我创建了一个ErrorController,并将以下代码添加到Global.asax以捕获未处理的异常,记录它们,然后将控件传输到ErrorController以显示自定义错误.此代码取自 here：

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

    HttpException httpEx = ex as HttpException;
    RouteData routeData = new RouteData();
    routeData.Values.Add("controller","Error");

    if (httpEx == null)
    {
        routeData.Values.Add("action","Index");
    }
    else
    {
        switch (httpEx.GetHttpCode())
        {
            case 404:
                routeData.Values.Add("action","HttpError404");
                break;
            case 500:
                routeData.Values.Add("action","HttpError500");
                break;
            case 503:
                routeData.Values.Add("action","HttpError503");
                break;
            default:
                routeData.Values.Add("action","Index");
                break;
        }
    }

    ExceptionLogger.LogException(ex); // <- This is working. Errors get logged

    routeData.Values.Add("error",ex);
    Server.ClearError();
    IController controller = new ErrorController();
    // The next line doesn't seem to be working
    controller.Execute(new RequestContext(new HttpContextWrapper(Context),routeData));
}

Application_Error肯定是发射,因为日志记录工作正常,但是不是显示我的自定义错误页面,我得到了Go Daddy通用的.从博客标题的上述代码取自,我注意到它使用了MVC框架的Release Candidate 2.在1.0中有什么改变,使最后一行代码不起作用？像往常一样works great on my machine.

任何建议将不胜感激.

编辑：忘了提到我已经尝试过Web.config中的customErrors模式的所有3个可能性(Off,On和RemoteOnly).与此设置相同的结果.

编辑2：我也尝试过和没有[HandleError]装饰的Controller类.

更新：我已经弄清楚了404s. Go Daddy的主机控制中心中有一部分“设置”面板,其中可以控制404行为,默认情况是显示其通用页面,显然这将覆盖任何Web.config设置.所以我的自定义404页面现在按照预期显示.然而,五百和五十三秒仍然没有工作.如果Sql Server抛出异常,则HomeController中的代码将获取内容的静态文本版本,如下所示：

public ActionResult Index()
{
    CcmDataClassesDataContext dc = new CcmDataClassesDataContext();

    // This might generate an exception which will be handled in the OnException override
    HomeContent hc = dc.HomeContents.GetCurrentContent();

    ViewData["bodyId"] = "home";
    return View(hc);
}

protected override void OnException(ExceptionContext filterContext)
{
    // Only concerned here with SqlExceptions so an HTTP 503 message can
    // be displayed in the Home View. All others will bubble up to the
    // Global.asax.cs and be handled/logged there.
    System.Data.SqlClient.SqlException sqlEx =
        filterContext.Exception as System.Data.SqlClient.SqlException;
    if (sqlEx != null)
    {
        try
        {
            ExceptionLogger.LogException(sqlEx);
        }
        catch
        {
            // couldn't log exception,continue without crashing
        }

        ViewData["bodyId"] = "home";
        filterContext.ExceptionHandled = true;
        HomeContent hc = ContentHelper.GetStaticContent();
        if (hc == null)
        {
            // Couldn't get static content. Display friendly message on Home View.
            Response.StatusCode = 503;
            this.View("ContentError").ExecuteResult(this.ControllerContext);
        }
        else
        {
            // Pass the static content to the regular Home View
            this.View("Index",hc).ExecuteResult(this.ControllerContext);
        }
    }
}

以下是尝试获取静态内容的代码：

public static HomeContent GetStaticContent()
{
    HomeContent hc;

    try
    {
        string path = Configuration.CcmConfigSection.Config.Content.PathToStaticContent;
        string fileText = File.ReadAllText(path);
        string regex = @"^[^#]([^rn]*)";
        MatchCollection matches = Regex.Matches(fileText,regex,RegexOptions.Multiline);
        hc = new HomeContent
            {
                ID = Convert.ToInt32(matches[0].Value),Title = matches[1].Value,DateAdded = DateTime.Parse(matches[2].Value),Body = matches[3].Value,IsCurrent = true
            };
    }
    catch (Exception ex)
    {
        try
        {
            ExceptionLogger.LogException(ex);
        }
        catch
        {
            // couldn't log exception,continue without crashing
        }
        hc = null;
    }

    return hc;
}

我已经验证,如果我更改连接字符串以生成SqlException,代码正确记录错误,然后抓取并显示静态内容.但是如果我也改变Web.config中静态文本文件的路径来测试503版本的Home View,那么我所得到的只是一个没有“服务不可用”的页面.而已.没有定制的503消息与网站的外观和感觉.

有没有人有任何建议改进代码可能有帮助？是否有助于向HttpResponse添加不同的头文件？还是去爸爸狠狠劫持503s？

public bool TrySkipIisCustomErrors { get; set; }