HttpWebRequest 登陆网站问题

skyb52 2009-08-28 01:35:52

为什么我这样弄之后登陆不上然后我用html试图看返回数据上面显示浏览器不支持 javascript啊

public void Login(string UserName, string UserPwd, string LoginUrl, out string Txt)

        {

            try

            {

                //定义Cookie容器

                CookieContainer CookieArray = new CookieContainer();



                //创建Http请求

                HttpWebRequest LoginHttpWebRequest = (HttpWebRequest)WebRequest.Create(LoginUrl);



                //登录数据

                string LoginData = "email=" + UserName + "&password=" + UserPwd + "http://www.renren.com/SysHome.do";

                //数据被传输类型

                LoginHttpWebRequest.ContentType = "application/x-www-form-urlencoded";

                //数据长度

                LoginHttpWebRequest.ContentLength = LoginData.Length;

                //数据传输方法 get或post

                LoginHttpWebRequest.Method = "POST";

                //设置HttpWebRequest的CookieContainer为刚才建立的那个CookieArray  

                LoginHttpWebRequest.CookieContainer = CookieArray;

                //获取登录数据流

                Stream myRequestStream = LoginHttpWebRequest.GetRequestStream();

                //StreamWriter

                StreamWriter myStreamWriter = new StreamWriter(myRequestStream);

                //把数据写入HttpWebRequest的Request流  

                myStreamWriter.Write(LoginData);



                //关闭打开对象     

                myStreamWriter.Close();



                myRequestStream.Close();



                //新建一个HttpWebResponse     

                HttpWebResponse myHttpWebResponse = (HttpWebResponse)LoginHttpWebRequest.GetResponse();



                //获取一个包含url的Cookie集合的CookieCollection     

                myHttpWebResponse.Cookies = CookieArray.GetCookies(LoginHttpWebRequest.RequestUri);



                WebHeaderCollection a = myHttpWebResponse.Headers;



                Stream myResponseStream = myHttpWebResponse.GetResponseStream();



                StreamReader myStreamReader = new StreamReader(myResponseStream);



                Txt = myStreamReader.ReadToEnd();



                //把数据从HttpWebResponse的Response流中读出     

                myStreamReader.Close();



                myResponseStream.Close();

            }

            catch (Exception ex)

            {

                throw ex;

            }

        }