请问c# winform post带cookie提交

Question

谁哪里有例子呢？比如人人网的....天涯论坛的等等，希望有的能给我发一份，一定要能用呀，从网上找了几个，都不行！
发了的，记着在下面留言，直接给分！200

Answer 1

  CookieContainer myCookieContainer = new CookieContainer();//cookie，全局的         //登陆url，返回登录成功后网页代码，paramList为登录的提交字符串
        public string Login(String url, String paramList)
        {
            HttpWebResponse res = null;
            string strResult = "";
            string postdata = null;            try
            {
                
                HttpWebRequest req = (HttpWebRequest)WebRequest.Create(url);
                req.Method = "POST";
                req.ContentType = "application/x-www-form-urlencoded";
                //req.AllowAutoRedirect = false;
                req.AllowWriteStreamBuffering = false;//禁用数据缓存
                //if (myCookieContainer!=null)
                //{
                req.CookieContainer = myCookieContainer;
                //}
                //req.Connection = "keep - alive";
                postdata = bianma(paramList);                byte[] data = Encoding.GetEncoding(charset).GetBytes(postdata);
                req.ContentLength = data.Length;
                Stream strm = req.GetRequestStream();
                strm.Write(data, 0, data.Length);    //写入参数
                strm.Close();
                res = (HttpWebResponse)req.GetResponse();
                res.Cookies = myCookieContainer.GetCookies(req.RequestUri);
                //myCookieContainer.Add(res.Cookies);                
                Stream ReceiveStream = res.GetResponseStream();
                Encoding encode = System.Text.Encoding.GetEncoding(charset);
                StreamReader sr = new StreamReader(ReceiveStream, encode);                strResult = sr.ReadToEnd();
            }
            catch (Exception e)
            {
                strResult = e.ToString();
            }
            finally
            {
                if (res != null)
                {
                    res.Close();
                }
            }
            return strResult;
        }
  /// <summary>
        //对参数字符串进行URL编码
        /// </summary>
        public string bianma(string postData)//对参数字符串进行URL编码
        {
            Encoding e1 = Encoding.GetEncoding(charset);
            int i = 0, j;
            StringBuilder UrlEncoded = new StringBuilder();
            Char[] reserved = { '?', '=', '&' };
            while (i < postData.Length)
            {
                j = postData.IndexOfAny(reserved, i);//报告指定 Unicode 字符数组中的任意字符在此实例中第一个匹配项的索引。该搜索从指定字符位置开始。 
                //j = 0 j=11
                if (j == -1)
                {
                    UrlEncoded.Append(HttpUtility.UrlEncode(postData.Substring(i, postData.Length - i), e1));
                    break;
                }
                UrlEncoded.Append(HttpUtility.UrlEncode(postData.Substring(i, j - i), e1));
                //在此实例的结尾追加指定对象的字符串表示形式
                //HttpUtility提供用于在处理 Web 请求时编码和解码 URL 的方法。
                //UrlEncode（）方法对 URL 字符串进行编码。
                //Append函数在此实例的结尾追加指定数组的Unicode字符的字符串表示形式
                UrlEncoded.Append(postData.Substring(j, 1));
                i = j + 1;
            }
            // Encoding.Unicode.GetString(UrlEncoded);
            return UrlEncoded.ToString();        }

Answer 2

之后的页面获取操作比如论坛的发帖等使用myCookieContainer 即可

Answer 3

我有一个自动登录csdn的，采集自己的分数情况，一个小例子。不知你要吗？

Answer 4

好的，可以的，谢谢了。[email protected]