强制C#的HTTP响应返回状态代码而不是描述 [英] Forcing C#'s HTTP Response to Return a Status Code Instead of a Description

问题描述

我目前正在使用此脚本来获取HTTP响应标头.

I am currently using this script to get HTTP response headers.

public static List<string> GetHttpResponseHeaders(string url)
{
    List<string> headers = new List<string>();
    WebRequest webRequest = HttpWebRequest.Create(url);
    using (WebResponse webResponse = webRequest.GetResponse())
    {
        headers.Add("Status Code: " + (int) ((HttpWebResponse) webResponse).StatusCode);
    }
    return headers;
}

具体来说，Status Code:是我感兴趣的.如此说来，看来StatusCode()实际上并没有返回状态码"，并且在成功请求时，它仅返回了OK而不是一个200.

Specifically, Status Code: is what I am interested in. With that said, it appears that StatusCode() doesn't actually return a "status code," and on successful requests, it only returns an OK instead of a 200.

有没有办法强迫它返回实际代码而不是描述?

Is there a way to force it to return the actual code instead of a description?

推荐答案

话虽如此，看来StatusCode()实际上并没有返回状态码"，并且在成功请求时，它仅返回OK而不是200.

With that said, it appears that StatusCode() doesn't actually return a "status code," and on successful requests, it only returns an OK instead of a 200.

否，它将返回 HttpStatusCode 枚举值.如果对具有名称的枚举值调用ToString，它将返回名称.

No, it returns an HttpStatusCode enum value. If you call ToString on an enum value that has a name, it will return the name.

避免这种情况的最简单方法是将其强制转换为int:

The simplest way of avoiding that is just to cast it to int:

headers.Add("Status Code: " + (int) ((HttpWebResponse) webResponse).StatusCode);

或者为使块的其余部分更清洁，请对响应进行一次投放:

Or to make the rest of the block cleaner, cast the response once:

using (WebResponse webResponse = webRequest.GetResponse())
{
    var httpResponse = (HttpWebResponse) webResponse;
    headers.Add("URL: " + url);
    headers.Add("Status Code: " + (int) httpResponse.StatusCode);
    headers.Add("Status Description: " + httpResponse.StatusDescription + "\n");
}

(请注意，当您使用字符串连接时，如有必要，将隐式调用ToString，这绝对不值得调用已经为字符串的StatusDescription之类的东西.)

(Note that when you're using string concatenation, ToString will be called implicitly if necessary - and it's never worth calling on something like StatusDescription which is already a string.)

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