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从HttpWebRequest和HttpWebResponse获取Http状态代码（200,301,404等）

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我试图从 HttpWebRequest 返回的 HttpWebResponse 对象中获取HTTP状态代码 . 我希望得到实际数字（200,301,302,404等），而不是文字说明 . （"Ok"，"MovedPermanently"等）数字是否隐藏在响应对象中的某个属性中？除了创建一个大的开关功能之外的任何想法？谢谢 .

HttpWebRequest webRequest = (HttpWebRequest)WebRequest
                                           .Create("http://www.gooogle.com/");
webRequest.AllowAutoRedirect = false;
HttpWebResponse response = (HttpWebResponse)webRequest.GetResponse();
//Returns "MovedPermanently", not 301 which is what I want.
Console.Write(response.StatusCode.ToString());
c# .net http httpwebrequest

5 回答

  • 334

    只需将 StatusCode 强制为 int 即可 .

    var statusNumber;
try {
   response = (HttpWebResponse)request.GetResponse();
   // This will have statii from 200 to 30x
   statusNumber = (int)response.StatusCode;
}
catch (WebException we) {
    // Statii 400 to 50x will be here
    statusNumber = (int)we.Response.StatusCode;
}
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  • 12
    //Response being your httpwebresponse
Dim str_StatusCode as String = CInt(Response.StatusCode)
Console.Writeline(str_StatusCode)
    回复于
  • 6
    Console.Write((int)response.StatusCode);

    HttpStatusCode（ response.StatusCode 的类型）是一个枚举，其中成员的值与HTTP状态代码匹配，例如

    public enum HttpStatusCode
{
    ...
    Moved = 301,
    OK = 200,
    Redirect = 302,
    ...
}
    回复于
  • 224

    您必须要小心，4xx和5xx范围内的服务器响应会抛出WebException . 您需要捕获它，然后从WebException对象获取状态代码：

    try
{
    wResp = (HttpWebResponse)wReq.GetResponse();
    wRespStatusCode = wResp.StatusCode;
}
catch (WebException we)
{
    wRespStatusCode = ((HttpWebResponse)we.Response).StatusCode;
}
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  • 2

    根据'dtb'，您需要使用HttpStatusCode，但是在'zeldi'之后，您需要特别注意代码响应> = 400 .

    这对我有用：

    HttpWebResponse response = null;
HttpStatusCode statusCode;
try
{
    response = (HttpWebResponse)request.GetResponse();
}
catch (WebException we)
{
    response = (HttpWebResponse)we.Response;
}

statusCode = response.StatusCode;
Stream dataStream = response.GetResponseStream();
StreamReader reader = new StreamReader(dataStream);
sResponse = reader.ReadToEnd();
Console.WriteLine(sResponse);
Console.WriteLine("Response Code: " + (int)statusCode + " - " + statusCode.ToString());
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