asp.net 获取远程页面的返回值（post）

        protected void Button1_Click(object sender, EventArgs e)
        {

             //这是一个短信平台的后台提交功能
            string postData = string.Format("ServerId={0}&account={1}&password={2}&roleId={3}", "1", "008", "007369852147","1"); // 要发放的数据
            byte[] byteArray = System.Text.Encoding.UTF8.GetBytes(postData);
            HttpWebRequest objWebRequest = (HttpWebRequest)WebRequest.Create("http://192.168.1.8:1986/ntkoSignServer/addntkouser"); //发送地址
            objWebRequest.Method = "POST";//提交方式
            objWebRequest.ContentType = "application/x-www-form-urlencoded";
            objWebRequest.ContentLength = byteArray.Length;
            Stream newStream = objWebRequest.GetRequestStream(); // Send the data.
            newStream.Write(byteArray, 0, byteArray.Length); //写入参数
            newStream.Close();
            HttpWebResponse response = (HttpWebResponse)objWebRequest.GetResponse();//获取响应
            StreamReader sr = new StreamReader(response.GetResponseStream(), System.Text.Encoding.Default);
            string textResponse = sr.ReadToEnd() + "返回数据"; // 返回的数据
            Response.Write(textResponse);//打印返回值
        }