关于C#模拟网页登录的问题
我要做一个网站流量统计的工具、数据要通过CNZZ来获取的、但是首先要登录。我想通过模拟提交的方式登录CNZZ然后采集里面的数据，但是登录这块一直弄不好，我下面的代码获取的还是未登录前的源文件。

C# code

        string url = "http://new.cnzz.com/v1/login.php?siteid=******";        string postData = "password=******";        string outdata = "";        string contentType = "application/x-www-form-urlencoded";        string accept = "image/gif, image/jpeg, image/pjpeg, image/pjpeg, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/msword, application/x-ms-application, application/x-ms-xbap, application/vnd.ms-xpsdocument, applicat";        string userAgent = "Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.2; Trident/4.0; EmbeddedWB 14.52 from: http://www.bsalsa.com/ EmbeddedWB 14.52; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022; .NET";        private void button1_Click(object sender, EventArgs e)        {            byte[] byteRequest = Encoding.GetEncoding("gb2312").GetBytes(postData);              HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(url);            //request.CookieContainer = cookieContainer;            request.Referer = url;            request.ContentType = contentType ;            request.ContentLength = byteRequest.Length;  //附加信息长度            request.Accept = accept;            request.UserAgent = userAgent;            request.Method = "POST";            Stream streamWrite = request.GetRequestStream();            streamWrite.Write(byteRequest, 0, byteRequest.Length);            streamWrite.Close();            HttpWebResponse response = (HttpWebResponse)request.GetResponse();            Stream streamRead = response.GetResponseStream();  //转换为数据流            StreamReader reader = new StreamReader(streamRead, Encoding.GetEncoding("gb2312"));            string html=reader.ReadToEnd();   //通过StreamReader类读取流            reader.Close();           streamRead.Close(); 

上面我通过抓包过来的postData为什么只有password 一项的、其他什么都没有、小小实习生求指教啊、急

[解决办法]
请求成功后保存该对象 HttpWebRequest.CookieContainer

下次请求开始时 设置该对象