全局异常处理WebApi 2，与HTTPPOST有问题

Question

我正试图在全局范围内处理异常。我的exceptionHandlerClass来了

   public override void Handle(ExceptionHandlerContext context)
    {
        HttpResponseMessage resp;
        resp = new HttpResponseMessage(HttpStatusCode.BadRequest)
        {
            Content = new StringContent(context.Exception.Message),
            ReasonPhrase = context.Exception.Message
        };
        context.Result = new ErrorMessageResult(context.Request, resp);
    }
}
public class ErrorMessageResult : IHttpActionResult
{
    private readonly HttpResponseMessage _httpResponseMessage;
    private HttpRequestMessage _request;

    public ErrorMessageResult(HttpRequestMessage request, HttpResponseMessage httpResponseMessage)
    {
        _request = request;
        _httpResponseMessage = httpResponseMessage;
    }
}

WebApiConfig.cs中已注册的异常处理程序

   config.Services.Replace(typeof(IExceptionHandler), new GlobalExceptionHandler());

下面是httppost和httpget控制器中的操作

   [Route("ArgumentNull/{id}")]
    [HttpPost]
    public IHttpActionResult ArgumentNull(int id)
    {
        Report objModel = new Report();
        objModel.ThrowItemNotFoundException();
        return Ok();
    }
    [Route("ArgumentNull/{id}")]
    [HttpGet]
    public IHttpActionResult ArgumentNullGet(int id)
    {
        Report objModel = new Report();
        objModel.ThrowItemNotFoundException();
        return Ok();
    }

因此，对httpget的响应是在globalExceptionHandler类中捕获的，但是httpPost只是抛出了堆栈跟踪(不需要的信息)的错误，如果我遗漏了一些东西，请有人告诉我。

Answer 1

您的GlobalExceptionHandler类似乎实现了ExceptionHandler，它具有ShouldHandle方法。当请求方法为POST或PUT等场景时，此方法返回false。要解决此问题，请考虑重写该方法以返回true：

public override bool ShouldHandle(ExceptionHandlerContext context)
    {
        return true;                        
    }