C# post网站回帖问题。

Question

 我现在想通过C# 的post方法来登陆 phpwind 的论坛 并发帖，现在的问题是登陆可以做到，但是发帖部分存在问题。我登陆之后记录下cookie ,然后再用记录下的cookie去“浏览”要发的帖子。结果浏览到的是“未登录状态”。。怎么回事。我的思路有问题吗。
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Net;
using System.IO;namespace 威海bbs
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }        HttpWebRequest httpWebRequest;
        HttpWebResponse httpWebResponse;
        string responseFromServer;              //SendLogin返回的响应流
        CookieCollection gCookieCollention;     //cookie
        string username="";  //用户名
        string password="";  //密码        private void button1_Click(object sender, EventArgs e)  //登陆网站
        {
            username = txt_username.Text;
            password = txt_password.Text;
            if (username != "" && password != "")
            {
                string PostData = string.Format("ajax=1&jumpurl=http://club.iweihai.cn/&lgt=0&pwpwd={0}&pwuser={1}&step=2",password,username);
                string LoginUrl = "http://club.iweihai.cn/login.php?nowtime=1359082517955&verify=e46660bb";
                SendLogin(LoginUrl, PostData);            
            }
            else
             MessageBox.Show("请输入用户名及密码。。");
        }        public void SendLogin(string loginUrl, string postData)
        {
            byte[] byteArray = Encoding.GetEncoding("GBK").GetBytes(postData);
            try
            {
                //基于apache服务器,IIS发布的则不需要  
                ServicePointManager.Expect100Continue = false;
                CookieContainer cookieContainer = new CookieContainer();
                //创建对url的请求  
                httpWebRequest = (HttpWebRequest)WebRequest.Create(loginUrl);
                httpWebRequest.CookieContainer = cookieContainer;
                httpWebRequest.Accept = "image/gif, image/jpeg, image/pjpeg, image/pjpeg, application/QVOD, application/QVOD, application/xaml+xml, application/x-ms-xbap, application/x-ms-application, application/vnd.ms-xpsdocument, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/msword, */*";
                httpWebRequest.Headers["Accept-Language"] = "zh-cn";
                httpWebRequest.UserAgent = "Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1) ; EmbeddedWB 14.52 from: http://www.bsalsa.com/ EmbeddedWB 14.52; .NET CLR 2.0.50727; .NET4.0C; .NET4.0E; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729)";
                httpWebRequest.ContentType = "application/x-www-form-urlencoded";
                //协议方式  
                httpWebRequest.Method = "POST";
                //post开始  
                //请求内容长度  
                httpWebRequest.ContentLength = byteArray.Length;
                Stream dataStream = httpWebRequest.GetRequestStream();
                // 请求数据放入请求流  
                dataStream.Write(byteArray, 0, byteArray.Length);                //返回html  
                httpWebResponse = (HttpWebResponse)httpWebRequest.GetResponse();
                if (httpWebResponse.StatusCode == HttpStatusCode.OK)
                {
                    StreamReader reader = new StreamReader(httpWebResponse.GetResponseStream(), Encoding.GetEncoding("gb2312"));
                    //读取响应流  
                    responseFromServer = reader.ReadToEnd();
                    if (responseFromServer.Contains("success"))
                    {
                        MessageBox.Show("登陆成功！！");
                        gCookieCollention = httpWebResponse.Cookies;  //保存登陆成功后的cookie
                    }
                    else
                        MessageBox.Show("用户名或密码错误。");
                    MessageBox.Show(responseFromServer);    //读响应流html
                    reader.Close();
                    dataStream.Close();
                    httpWebResponse.Close();
                }
            }            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
        }        private void btn_Reply_Click(object sender, EventArgs e) 
        {
            VisitUrl(txt_url.Text);  //这一步还是未登录状态
        }
        private void VisitUrl(string url)  //转到帖子所在界面
        {
            CookieContainer cc = new CookieContainer();
            HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(url);
            request.CookieContainer = cc;
            request.KeepAlive = true;
            request.CookieContainer.Add(gCookieCollention);
            HttpWebResponse reponse = (HttpWebResponse)request.GetResponse();
            StreamReader sr = new StreamReader(reponse.GetResponseStream(), Encoding.GetEncoding("gb2312"));
            string s = sr.ReadToEnd();
            txt_Msg.Text = s;
        }
    }
}
c#.netwindows

Answer 1

你获取cookie的方式不对,你那样好像是只获取了返回的cookie