ELMAH和API控制器MVC4不记录错误 [英] ELMAH and API controller in MVC4 not logging errors

问题描述

使用MVC4的API控制器，​​当控制器动作抛出一个异常，ELMAH不会记录错误。

Using an API controller in MVC4, when the controller action throws an exception, ELMAH does not log the error.

我认为问题在于MVC4设置HTTP状态code至500，它返回一个JSON对象异常的详细信息，但这么ELMAH永远看不到它，它不会引发未处理的异常。

I think the problem is that MVC4 sets the HTTP status code to 500, and it returns the exception details in a JSON object, but it does not throw an unhandled exception so ELMAH never sees it.

我怎样才能得到ELMAH捕捉到的所有响应的状态code是不是200？

How can I get ELMAH to capture all responses where the status code is not 200?

推荐答案

在描述不工作anwser。我已经尽我的测试服务器上，并收到一个错误（给定的过滤器实例必须实现以下过滤器接口中的一个或多个：个IAuthorizationFilter，IActionFilter，IResultFilter，个IExceptionFilter）

The anwser described before doesn't work. I've tried on my test server and received an error ("The given filter instance must implement one or more of the following filter interfaces: IAuthorizationFilter, IActionFilter, IResultFilter, IExceptionFilter.")

这时我才意识到发生了什么事....您要自定义过滤器添加到MVC全局筛选（filters.Add（新ElmahHandledErrorLoggerFilter（））;）

Then I realized what happened .... you are trying to add the custom filter to the MVC Global Filter (filters.Add(new ElmahHandledErrorLoggerFilter());)

要解决这个问题，我在GlobalFilter拆分过滤器注册和HttpFilter

To fix that, I've split the filter registration in GlobalFilter and HttpFilter

FilterConfig.cs

FilterConfig.cs

    public static void RegisterGlobalFilters(GlobalFilterCollection filters)
    {
        filters.Add(new HandleErrorAttribute());
    }

    public static void RegisterHttpFilters(HttpFilterCollection filters)
    {
        filters.Add(new ElmahHandledErrorLoggerFilter());
    }

Global.asax中

Global.asax

    FilterConfig.RegisterGlobalFilters(GlobalFilters.Filters);
    FilterConfig.RegisterHttpFilters(GlobalConfiguration.Configuration.Filters);

; - ）

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