获取WebException错误中的错误号 [英] Get Error number in WebException Error

问题描述

如何获取WebException错误中的错误号?

How To Get Error number in WebException Error?

try
{
     HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create("site");
     HttpWebResponse response = (HttpWebResponse)request.GetResponse();
     Stream stream = response.GetResponseStream();
     int i = stream.ReadByte();
}
catch (WebException e)
{
     //How To Get Error number in WebException Error?
}

推荐答案

您需要运行测试以确保它是ProtocolError:

You'll want to run a test to make sure that it was a ProtocolError:

if (e.Status == WebExceptionStatus.ProtocolError) 
{
    Console.WriteLine("Status Code : {0}", ((HttpWebResponse)e.Response).StatusCode);
    Console.WriteLine("Status Description : {0}", ((HttpWebResponse)e.Response).StatusDescription);
}

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