[英]Cannot get an httponly cookie with HttpWebResponse on windows phone 7 app
我正在為項目開發使用C#的應用程序,並且在網站上進行POST請求后需要獲取Cookie。 我正在使用HttpWebResponse來獲取請求的結果。 我的問題是CookieCollection為空,我不知道為什么。 該cookie是否可能因為它是HTTPOnly cookie而沒有出現?
這是我的整個POST請求的代碼:
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");
}
我知道已經有一些類似的問題,但是我仍然無法使我的應用程序正常運行。
希望我的問題清楚。
謝謝。
我終於找到了為什么它不起作用:我忘了聲明HttpWebRequest的cookiecontainer。 因此,我使用一個本地字段來保存CookieContainer,並在每次對RequestPOST()的調用中重用它。
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);
}
實際上,我不必閱讀HTTPOnly cookie,我只需要擁有它。 CookieContainer仍然不顯示cookie,因為在容器中未引用HTTPOnly cookie,但它們仍然存在於其中。
希望對您有所幫助。
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