首页新闻找找看学习计划

httpwebrequest post 登陆 无法保持cookie

0
悬赏园豆:20 [待解决问题]
public string PostData(string url, CookieContainer cookie, string postdata)
        {
            HttpWebRequest Request = null; //http请求
            HttpWebResponse Response = null;//http响应
            string Conntent = string.Empty;
            Request = (HttpWebRequest)WebRequest.Create(new Uri(url));//创建请求连接
            byte[] b = Encoding.UTF8.GetBytes(postdata); // 转化
         
            Request.ContentType = "application/x-www-form-urlencoded";
            Request.Method = "POST";//设置请求类型
            Request.CookieContainer = cookie;//设置cookie
            Request.ContentLength = b.Length;//设置推送数据的长度
           
            using (Stream stream = Request.GetRequestStream())//获取用于写入的流
            {
                stream.Write(b, 0, b.Length);

            }
            //获取服务器返回的资源  
            using (Response = (HttpWebResponse)Request.GetResponse())//返回响应资源
            {
                using (StreamReader reader = new StreamReader(Response.GetResponseStream(), Encoding.UTF8))//返回响应流
                {
                    if (Response.Cookies.Count > 0)//判断cookie存在
                        cookie.Add(Response.Cookies);//在cookie集合中添加
                        Conntent = reader.ReadToEnd();//读取流;
                }
            }
            return Conntent;
        }

   CookieContainer cookie = new CookieContainer();

string LoginPostData = string.Format("gotopage=/oy/&dopost=login&adminstyle=o&userid={0}&pwd={1}", 账号,密码);//登陆post数据
            string aa = httphelper.PostData("http://www.qq.com/login.php", cookie, LoginPostData);//登陆

登陆以后 再访问其他的页面,依然跳到登陆页

爱程序,爱生活的主页 爱程序,爱生活 | 初学一级 | 园豆:12
提问于:2012-09-15 10:25
< >
分享
所有回答(2)
0

貌似要用response.Header["Set-Cookie"]去获取,我做webqq登录时取cookies:

private static bool SaveCookies(string qq, QQResponse response)
        {
            if (response.Header == null)
            {
                return false;
            }

            //保存登录成功后的cookie
            string ckstr = response.Header["Set-Cookie"];
            //登录失败
            if (ckstr == null)
            {
                return false;
            }

            CookieContainer cc ;
            if (QQCookies.Keys.Contains(qq))
            {
                cc = QQCookies[qq];
            }
            else
            {
                cc = new CookieContainer();
            }

            string[] items = ckstr.Split(new char[] { ',', ';' }, StringSplitOptions.RemoveEmptyEntries);
            string[] kv;
            string key = "";
            foreach (string item in items)
            {
                kv = item.Split(new char[] { '=' }, StringSplitOptions.RemoveEmptyEntries);
                key = kv[0].Trim();
                //去掉不是cookie项目
                if (kv.Length < 2 || key == "EXPIRES" || key == "PATH" || key == "DOMAIN")
                {
                    continue;
                }
                cc.Add(new Cookie
                {
                    Domain = "ptlogin2.qq.com",
                    Name = key,
                    Value = kv[1]
                });
                if (key == "ptwebqq")
                {
                    PTWebqq[qq] = kv[1];
                }
            }

            QQCookies[qq] = cc;
            return true;
        }
向往-SONG | 园豆:4853 (老鸟四级) | 2012-09-15 17:16
0

试试我的类http://www.sufeinet.com/thread-3-1-1.html

苏飞 | 园豆:2024 (老鸟四级) | 2013-12-05 11:09
清除回答草稿
   您需要登录以后才能回答,未注册用户请先注册