COOKIE 问题 WINFORM访问需要用户名的网站，显示未登陆

Question

代码如下：// PostToBbs
string strUrl = @"http://bbs.xxx.com/post.php?action=newthread&fid=23&topicsubmit=yes";
Uri siteUri = new Uri("http://bbs.xxx.com/");
// DATA
//标题
string strSubject = this.tbxPostTitle.Text;
//内容
string strMessage = this.rtbPost.Text;
ASCIIEncoding encoding = new ASCIIEncoding();
string postData = "&subject=" + strSubject;
postData += "&message=" + strMessage;
byte[] data = encoding.GetBytes(postData); // Cookie
CookieContainer myCookieContainer = new CookieContainer();
//新建一个HttpWebRequest 
HttpWebRequest myRequest = (HttpWebRequest)WebRequest.Create(strUrl);
myRequest.Method = "POST";
myRequest.ContentType="application/x-www-form-urlencoded";
myRequest.ContentLength = data.Length;
myRequest.CookieContainer = myCookieContainer;
myRequest.Referer = @"http://bbs.xxx.com/post.php?action=newthread&fid=23";
            // STREAM Send the data.
Stream newStream=myRequest.GetRequestStream();
newStream.Write(data,0,data.Length);
newStream.Close(); // Get response 新建一个HttpWebResponse 
HttpWebResponse myResponse = (HttpWebResponse)myRequest.GetResponse();
//获取一个包含url的Cookie集合的CookieCollection

myResponse.Cookies = myCookieContainer.GetCookies(myRequest.RequestUri); //拿到了Cookie，再进行请求就能直接读取到登录后的内容了 
myRequest = (HttpWebRequest)WebRequest.Create(strUrl);
//刚才那个CookieContainer已经存有了Cookie,把它附加到HttpWebRequest中则能直接通过验证
myRequest.Method = "POST";
myRequest.ContentType="application/x-www-form-urlencoded";
myRequest.ContentLength = data.Length;
myRequest.CookieContainer = myCookieContainer;
myRequest.Referer = @"http://bbs.xxx.com/post.php?action=newthread&fid=23";
newStream=myRequest.GetRequestStream();
newStream.Write(data,0,data.Length);
newStream.Close(); myResponse = (HttpWebResponse)myRequest.GetResponse();
myResponse.Cookies = myCookieContainer.GetCookies(myRequest.RequestUri);
StreamReader reader = new StreamReader(myResponse.GetResponseStream(),Encoding.Default);
string content = reader.ReadToEnd();
reader.Close();
this.rtbPost.Text = content;
//this.rtbPost.Text = nn;
// 保存
DialogHelper.ShowInformationMessage("帖子提交成功！");但内容无法提交，为什么呢？ 在线等

Answer 1

加上NetworkCredential试试，例如：
NetworkCredential myCred = new NetworkCredential(
    SecurelyStoredUserName,SecurelyStoredPassword,SecurelyStoredDomain);
 
CredentialCache myCache = new CredentialCache();
 
myCache.Add(new Uri("www.contoso.com"), "Basic", myCred);
myCache.Add(new Uri("app.contoso.com"), "Basic", myCred);
 
WebRequest wr = WebRequest.Create("www.contoso.com");
wr.Credentials = myCache;

Answer 2

向  Knight94(愚翁)   我没看程序太长了，他看了，好人一个！

Answer 3

回复：Knight94(愚翁) 
谢谢，试一下。另外这种方法是需要每次都输入用户名密码了哦。有没有直接读COOKIE的方法呢？

Answer 4

没看到你往myCookieContainer中add Cookie。在request时把Cookie取来

Answer 5

//获取一个包含url的Cookie集合的CookieCollectionmyResponse.Cookies = myCookieContainer.GetCookies(myRequest.RequestUri);这句不是获取COOKIE吗？

Answer 6

string postData = "uUsername=avoid&uPassword=123456";
                    ASCIIEncoding encoding = new ASCIIEncoding();
                    byte[] data = encoding.GetBytes(postData);                    request = (HttpWebRequest)WebRequest.Create(sUrl);
                    request.Method = "POST";
                    request.ContentType = "application/x-www-form-urlencoded";
                    request.ContentLength = data.Length;
                    Stream newStream = request.GetRequestStream();
                    newStream.Write(data, 0, data.Length);                    newStream.Close();
                    
                    request.CookieContainer = cc;
                    
                    response = (HttpWebResponse)request.GetResponse();
                    cc.Add(response.Cookies);
                    stream = response.GetResponseStream();
                    sHtml = new StreamReader(stream, System.Text.Encoding.Default).ReadToEnd();

Answer 7

myRequest.CookieContainer = myCookieContainer; 已经获得了一个COOKIE 
如果再 ADD 就有两个COOKIE了。问题好象不是出在这里。

Answer 8

调试中发现 
IE中登陆网站获得的COOKIE 和程序中获得的COOKIE值并不相同，这会不会是原因所在呢？