HttpRequest自动post备用代码

在一个demo中使用过，特发表，以备后用。

 

        //从webbrowser得到cookies
        private CookieContainer Getcookies()
        {
            CookieContainer myCookieContainer = new CookieContainer();
            string cookieStr = wbInfo.Document.Cookie;
            MessageBox.Show(cookieStr);

            string[] cookstr = cookieStr.Split(';');
            foreach (string str in cookstr)
            {
                if (str.Contains("="))
                {
                    string[] cookieNameValue = str.Split('=');

                    Cookie ck = new Cookie(cookieNameValue[0].Trim().ToString(), cookieNameValue[1].Trim().ToString());
                    ck.Domain = "taobao.com";
                    myCookieContainer.Add(ck);

                    //MessageBox.Show(cookieNameValue[0].Trim().ToString() + "==" + cookieNameValue[1].Trim().ToString());
                }
            }
            return myCookieContainer;
        }


        //带CookieContainer的POST
        public static string PostData(string url, string indata, CookieContainer myCookieContainer)
        {
           HttpWebRequest request = (HttpWebRequest)System.Net.HttpWebRequest.Create(url); //HttpHelper.CreateRequest(trackBackItem);   
           request.Credentials = CredentialCache.DefaultNetworkCredentials;   
           request.Method = "POST";   
           request.ContentLength = message.ToString().Length;   
           request.ContentType = "application/x-www-form-urlencoded";
           request.CookieContainer = myCookieContainer;
           request.Referer = "http://login.taobao.com/member/login.jhtml?redirectURL=http%3A%2F%2Fbangpai.taobao.com%2Fgroup%2Fpublish_thread%2F1305036.htm";
           request.KeepAlive = false;   
           request.Timeout = 10000;
           byte[] bytes = Encoding.Default.GetBytes(indata);//   
            request.ContentLength = bytes.Length;//   
          
            using (Stream myWriter = request.GetRequestStream())//   
            {   
              myWriter.Write(bytes, 0, bytes.Length);//   
               myWriter.Flush();
          } 


            HttpWebResponse myHttpWebResponse = (HttpWebResponse)request.GetResponse();
            myHttpWebResponse.Cookies = myCookieContainer.GetCookies(request.RequestUri);
            Stream myResponseStream = myHttpWebResponse.GetResponseStream();
            StreamReader myStreamReader = new StreamReader(myResponseStream, Encoding.GetEncoding("gb2312"));
            outdata = myStreamReader.ReadToEnd();
            myStreamReader.Close();
            myResponseStream.Close();

            return outdata;
        }

        //带CookieContainer的Get
        public static string GetData(string url, CookieContainer myCookieContainer)
        {
            HttpWebRequest request = (HttpWebRequest)System.Net.HttpWebRequest.Create(url); 
            request.Credentials = CredentialCache.DefaultNetworkCredentials;
            request.Method = "GET";
            request.ContentType = "application/x-www-form-urlencoded";
            if(myCookieContainer!=null) request.CookieContainer = myCookieContainer;
            //request.KeepAlive = false;   
            request.Timeout = 10000;

            string outdata = "";
            HttpWebResponse myHttpWebResponse = (HttpWebResponse)request.GetResponse();
            if (myCookieContainer != null) myHttpWebResponse.Cookies = myCookieContainer.GetCookies(request.RequestUri);
            Stream myResponseStream = myHttpWebResponse.GetResponseStream();
            StreamReader myStreamReader = new StreamReader(myResponseStream, Encoding.GetEncoding("gb2312"));
            outdata = myStreamReader.ReadToEnd();
            myStreamReader.Close();
            myResponseStream.Close();

            return outdata;
        }

        //注意：在post数据的时候，例如：String post_indata = "_a=参数a&_b=参数b"
        //如果参数数据量比较大，带html符号（&等），最好UrlEncode下，保证发送成功。
        //正式产品中，写成类。