设置Web API ExceptionFilterAttribute中处理的异常

Question

ASP.NET Web API中是否有任何方法可以将异常标记为ExceptionFilterAttribute中的处理？

我想在方法级别使用异常过滤器处理异常,并停止传播到全局注册的异常过滤器.

用于控制器操作的过滤器:

public class MethodExceptionFilterAttribute : ExceptionFilterAttribute
{
    public override void OnException(HttpActionExecutedContext context)
    {
        if (context.Exception is NotImplementedException)
        {
            context.Response = new HttpResponseMessage(HttpStatusCode.InternalServerError)
            {
                Content = new StringContent(context.Exception.Message)
            };
            // here in MVC you could set context.ExceptionHandled = true;
        }
    }
}

全球注册的过滤器:

public class GlobalExceptionFilterAttribute : ExceptionFilterAttribute
{
    public override void OnException(HttpActionExecutedContext context)
    {
        if (context.Exception is SomeOtherException)
        {
            context.Response = new HttpResponseMessage(HttpStatusCode.SomethingElse)
            {
                Content = new StringContent(context.Exception.Message)
            };
        }
    }
}

Answer 1

尝试在本地处理结束时抛出HttpResponseException 。按照设计，它们不会被异常过滤器捕获。

throw new HttpResponseException(context.Response);