无法在 windows phone 7 应用程序上使用 HttpWebResponse 获取 httponly cookie

Cannot get an httponly cookie with HttpWebResponse on windows phone 7 app

我正在使用 C# 为项目开发应用程序,我需要在网站上收到 POST 请求后获取 cookie。我正在使用 HttpWebResponse 来获取请求的结果。我的问题是 CookieCollection 是空的,我不知道为什么。 cookie 是否可能因为它是 HTTPOnly cookie 而没有出现?

这是我对整个 POST 请求的代码:

    private void RequestPOST(string uri)
    {
        Uri myUri = new Uri(uri);

        HttpWebRequest myRequest = (HttpWebRequest)HttpWebRequest.Create(myUri);
        myRequest.Method = "POST";
        myRequest.ContentType = "application/x-www-form-urlencoded";
        Debug.WriteLine("RequestStream : BEGIN");
        myRequest.BeginGetRequestStream(new AsyncCallback(GetRequestStreamCallback), myRequest);

    }

    private void GetRequestStreamCallback(IAsyncResult callbackResult)
    {
        HttpWebRequest myRequest = (HttpWebRequest)callbackResult.AsyncState;
        Stream postStream = myRequest.EndGetRequestStream(callbackResult);

        byte[] byteArray = Encoding.UTF8.GetBytes(this._postData);

        postStream.Write(byteArray, 0, byteArray.Length);
        postStream.Close();

        myRequest.BeginGetResponse(new AsyncCallback(GetResponsetStreamCallback), myRequest);

    }

    private void GetResponsetStreamCallback(IAsyncResult callbackResult)
    {
        HttpWebRequest request = (HttpWebRequest)callbackResult.AsyncState;

        HttpWebResponse response = (HttpWebResponse)request.EndGetResponse(callbackResult);

        CookieCollection cookies = response.Cookies;

        using (StreamReader httpWebStreamReader = new StreamReader(response.GetResponseStream()))
        {
            this._retourPost = httpWebStreamReader.ReadToEnd();

            Debug.WriteLine(cookies.Count);//My problem appears here, cookieCount throws a NullException
            foreach (Cookie cook in response.Cookies)
            {
                Debug.WriteLine(cook.Name + " : "+ cook.Value);
            }
        }
        Debug.WriteLine("END");
    }

我知道已经有一些类似的问题,但我仍然无法使我的应用程序正常工作。

我希望我的问题很清楚。

谢谢。

我终于找到了它不起作用的原因:我忘记声明 HttpWebRequest 的 cookiecontainer。所以我使用一个本地字段来保存 CookieContainer 并在每次调用 RequestPOST() 时重复使用它。

    private CookieContainer cookiecontainer = new CookieContainer();

    private void RequestPOST(string uri)
    {
         Uri myUri = new Uri(uri);

         HttpWebRequest myRequest = (HttpWebRequest)HttpWebRequest.Create(myUri);
         myRequest.Method = "POST";
         myRequest.ContentType = "application/x-www-form-urlencoded";

         myRequest.CookieContainer = this.cookiecontainer;

         Debug.WriteLine("RequestStream : BEGIN");
         myRequest.BeginGetRequestStream(new AsyncCallback(GetRequestStreamCallback), myRequest);

    }

其实我不需要读取HTTPOnly cookie,我只需要拥有它。 CookieContainer 仍然没有显示任何 cookie,因为容器中未引用 HTTPOnly cookie,但无论如何它们都在其中。

希望对您有所帮助。