Question

设定：

已删除HandleErrorAttribute并清除所有过滤器。
未在Global.asax

IIS错误的web.config设置如下：

<httpErrors errorMode="Custom" existingResponse="Replace" defaultPath="/StaticErrors/Default.html" defaultResponseMode="ExecuteURL">
         <clear />
         <error statusCode="400" path="/myCustomErrors/Http400" responseMode="ExecuteURL" />
         <error statusCode="401" path="/myCustomErrors/Http401" responseMode="ExecuteURL" />
         <error statusCode="403" path="/myCustomErrors/Http403" responseMode="ExecuteURL" />
         <error statusCode="404" path="/myCustomErrors/Http404" responseMode="ExecuteURL" />
         <error statusCode="500" path="/myCustomErrors/Http500" responseMode="ExecuteURL" />
      </httpErrors>

这通常正常，但是，如果我添加以下customErrors代码 - 那么任何错误，例如错误请求或未找到将总是导致错误500页面显示。由于某种原因，HttpException被视为未处理的异常。

<customErrors defaultRedirect="/StaticErrors/Default.html" mode="On" redirectMode="ResponseRewrite">
         <error redirect="~/myCustomErrors/Http400" statusCode="400" />
         <error redirect="~/myCustomErrors/Http401" statusCode="401" />
         <error redirect="~/myCustomErrors/Http403" statusCode="403" />
         <error redirect="~/myCustomErrors/Http404" statusCode="404" />
         <error redirect="~/myCustomErrors/Http500" statusCode="500" />
   </customErrors>

在仅限MVC的应用程序中以这种方式禁用ASP.NET错误处理会影响哪些问题。

Answer 1

最后，我只能通过使用Global.asax文件和Application_Error方法有效地重写默认错误处理容量来解决这个问题。

protected void Application_Error()
      {
         var errorCodeToUse = 500;

         var currentException = Server.GetLastError();
         if (currentException != null)
         {
            var httpException = currentException as System.Web.HttpException;

            if (httpException != null)
            {
               errorCodeToUse = httpException.GetHttpCode();
            }
         }

         var currentContext = HttpContext.Current;
         RequestContext requestContext = null;

         if (currentContext.CurrentHandler != null)
         {
            requestContext = ((MvcHandler)currentContext.CurrentHandler).RequestContext;
         }

         if (requestContext == null)
         {
            requestContext = new RequestContext(new HttpContextWrapper(Context), new RouteData());
         }

         requestContext.RouteData.Values["controller"] = "Error";

         switch (errorCodeToUse)
         {
            case 400:
               requestContext.RouteData.Values["action"] = "Http400";
               break;
            case 401:
               requestContext.RouteData.Values["action"] = "Http401";
               break;
            case 403:
               requestContext.RouteData.Values["action"] = "Http403";
               break;
            case 404:
               requestContext.RouteData.Values["action"] = "Http404";
               break;
            case 405:
               requestContext.RouteData.Values["action"] = "Http405";
               break;
            case 429:
               requestContext.RouteData.Values["action"] = "Http429";
               break;
            default:
               requestContext.RouteData.Values["action"] = "Http500";
               break;
         }

         var factory = ControllerBuilder.Current.GetControllerFactory();
         var controller = factory.CreateController(requestContext, "Error");
         controller.Execute(requestContext);
         currentContext.Server.ClearError();

      }

当<customerrors>打开</customersrors>时，ASP.NET MVC5始终返回HTTP500而不管异常

1 个答案: