找不到错误页面,使用自定义错误页面抛出ELMAH错误

时间:2013-05-22 19:46:37

标签: c# asp.net-mvc-4 elmah

我对Global.asax进行了一些修改,以便我可以显示自定义错误页面(403,404和500)以下是代码:

    public class MvcApplication : System.Web.HttpApplication
    {
        protected void Application_Start()
        {
            AreaRegistration.RegisterAllAreas();

            WebApiConfig.Register(GlobalConfiguration.Configuration);
            //FilterConfig.RegisterGlobalFilters(GlobalFilters.Filters);
            RouteConfig.RegisterRoutes(RouteTable.Routes);
            BundleConfig.RegisterBundles(BundleTable.Bundles);
        }

        protected void Application_Error(object sender, EventArgs e)
        {
            if (Context.IsCustomErrorEnabled)
            {
                ShowCustomErrorPage(Server.GetLastError());
            }
        }

        private void ShowCustomErrorPage(Exception exception)
        {
            HttpException httpException = exception as HttpException;
            if (httpException == null)
            {
                httpException = new HttpException(500, "Internal Server Error", exception);
            }

            Response.Clear();
            RouteData routeData = new RouteData();
            routeData.Values.Add("controller", "Error");
            routeData.Values.Add("fromAppErrorEvent", true);

            switch (httpException.GetHttpCode())
            {
                case 403:
                    routeData.Values.Add("action", "AccessDenied");
                    break;

                case 404:
                    routeData.Values.Add("action", "NotFound");
                    break;

                case 500:
                    routeData.Values.Add("action", "ServerError");
                    break;

                default:
                    routeData.Values.Add("action", "DefaultError");
                    routeData.Values.Add("httpStatusCode", httpException.GetHttpCode());
                    break;
            }

            Server.ClearError();

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

我还在Web上添加了以下内容.Config:

<customErrors mode="On">
    <!-- There is custom handling of errors in Global.asax -->
</customErrors>

自定义错误页面正确显示,ELMAH将正确记录(故意)抛出的错误。但是,ELMAH还会捕获并记录一个额外的错误:

System.InvalidOperationException: The view 'Error' or its master was not found or no view engine supports the searched locations. The following locations were searched: ~/Views/account/Error.aspx ~/Views/account/Error.ascx ~/Views/Shared/Error.aspx ~/Views/Shared/Error.ascx ~/Views/account/Error.cshtml ~/Views/account/Error.vbhtml ~/Views/Shared/Error.cshtml ~/Views/Shared/Error.vbhtml

我的第一直觉让我在过滤器配置中禁用全局HandleErrorAttribute。而且,类似的问题如:MVC problem with custom error pages让我相信我的怀疑是对的。但即使在禁用全局HandleErrorAttribute之后,我仍然收到错误,无法找到错误视图!是什么赋予了?我唯一的另一个预感是我的基本控制器来自System.Web.Mvc.Controller我试图检查来源以查看HandleErrorAttribute是否适用于System.Web.Mvc.Controller但是无法收集任何内容......

更新: 我尝试覆盖我的基本控制器,将异常标记为如下处理:

protected override void OnException(ExceptionContext filterContext)
{
    filterContext.ExceptionHandled = true;
    base.OnException(filterContext);
}

但这并没有解决问题。

UPDATE2: 我将一个Error.aspx文件放入共享视图中,只是为了看看会发生什么。当它在那里时,ELMAH记录强制异常,然后提供共享视图 - 它永远不会到达Application_Error() ....不太确定该怎么做。

2 个答案:

答案 0 :(得分:27)

终于让它满意了......

Elmah.Mvc包应用“隐藏”错误处理程序。我已通过在web.config <appSettings>中添加以下行来禁用此功能(默认情况下,该值从nuget install设置为“false”)

<add key="elmah.mvc.disableHandleErrorFilter" value="true" />

所以,现在我的错误传播到Application_Error并由Elmah记录,绕过Elmah过滤器,并显示正确的错误页面(不是/shared/error.cshtml中的那个)

答案 1 :(得分:1)

如果您在IIS 7集成模式下运行,则需要在Application_Error中添加Response.TrySkipIisCustomErrors = true;。否则,IIS仍然会将客户端重定向到自定义错误页面,尽管您在代码中执行了任何操作。

有关其他详细信息,请参阅此处:http://www.west-wind.com/weblog/posts/2009/Apr/29/IIS-7-Error-Pages-taking-over-500-Errors

编辑:这是我的Application_Error的主体:

if (HttpContext.Current != null)
{
    Server.ClearError();
    Response.TrySkipIisCustomErrors = true;
    RouteData data = new RouteData();
    data.Values.Add("controller", "Error");
    data.Values.Add("action", "Error");
    IController controller = new MyApp.Controllers.ErrorController();
    controller.Execute(new RequestContext(new HttpContextWrapper(Context), data));
}
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