如何利用ReadAsStringAsync时处理HTTP状态code（） [英] How to handle Http Status code when making use of ReadAsStringAsync()

问题描述

我有一个JavaScript客户端，这使得Ajax调用一个.NET服务（让我们把它叫做第一服务）。第一个服务，然后使得调用其他.NET控制器（称之为第二个服务）。在此控制器，我抛出一些异常。在第一行，我说：

I have a JavaScript client which makes Ajax call to a .net service (Lets call it First service). First service then makes call to another .net Controller (Call it Second Service). In this controller, I am throwing some exception. On the first line I am saying:

从第二个服务 // code

[HttpPost]
public HttpResponseMessage Results(ParamsModel data)
{
    throw new Exception("Exception for testing purpose");

}

从第一服务 // code

    [HttpPost]
    public ActionResult Results(ParamsModel data)
    {

        var client = new HttpClient();
        var task = client.PostAsJsonAsync(urlTemplate, data);
        var result = task.Result.Content.ReadAsStringAsync().Result;

        return Content(result, "application/json");

    }

问题：虽然第二个服务抛出的错误和放大器;返回500状态code，第一servcie返回200状态code到JavaScript客户端。我也无法读取第二个服务返回我只得到字符串输出萨特斯code。

Problem: Though the Second Service is throwing error & returning 500 status code, The first servcie returns 200 status code to the JavaScript client. I am also not able to read the satus code returned by Second service as I only get string output.

请建议。我想回到 500状态code时出现错误

推荐答案

您可以实现的错误处理在如下HttpClient的。

You can implement error handling as follows in the HttpClient.

if (!task.Result.IsSuccessStatusCode)
{
   if (task.Result.StatusCode == HttpStatusCode.InternalServerError)
   {
      return Request.CreateErrorResponse(HttpStatusCode.InternalServerError, "An error has occured.");
   }
   else
   {
      // Check for other status codes and handle the responses
   }
}
else
{
  // Success status code. Return success response.
}

希望这有助于。

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