HttpClient不在CookieContainer中存储cookie

Question

我正在使用VS2010+ .NET 4.0+ System.Net.Http(来自Nuget).

由于我无法理解的原因,我收到的会话cookie HttpResponseMessage不会自动保存在HttpClient CookieContainer.这是我的代码的样子:

CookieContainer cookies = new CookieContainer();
HttpClientHandler handler = new HttpClientHandler();
handler.CookieContainer = cookies;
HttpClient client = new HttpClient(handler);

Uri site = new Uri("https://www.mywebsite.com");
var response1 = client.SendAsync(new HttpRequestMessage(HttpMethod.Get,site)).Result;

我可以在响应头中看到我有以下内容:

Set-Cookie: JSESSIONID=FC8110E434C2C6DAB78B4E335024A639; Path=/member; Secure

但是我的cookie容器仍然是空的...为什么？

Answer 1

使用这段代码从响应中检索cookie:

/// <summary>
/// Read web cookies
/// </summary>
public static CookieContainer ReadCookies(this HttpResponseMessage response)
{
    var pageUri = response.RequestMessage.RequestUri;

    var cookieContainer = new CookieContainer();
    IEnumerable<string> cookies;
    if (response.Headers.TryGetValues("set-cookie", out cookies))
    {
        foreach (var c in cookies)
        {
            cookieContainer.SetCookies(pageUri, c);
        }
    }

    return cookieContainer;
}

Answer 2

我想问题是你的cookie是安全的.问题是,CookieContainer不会在后续HTTP请求中将安全cookie发送回服务器.它可能是一个bug,或者它背后有一些原因.

解决方法是手动将cookie重新添加到CookieContainer.这样,cookie将在HTTP请求标头中发回,因为当您将cookie发送回服务器时,不会定义安全性.

有关更多信息,请参阅此文章.