简单的问题：向服务器发送消息

Question

    private void bt_Begin_Click(object sender, EventArgs e)
        {
          string data=OpenReadWithHttps("http://www.baidu.com/", "123");
        }
        public string OpenReadWithHttps(string URL, string strPostdata)
        {
            //ServicePointManager.CertificatePolicy = new CertPolicy();
            HttpWebRequest request = (HttpWebRequest)WebRequest.Create(URL);
            // request.CookieContainer = new CookieContainer();
            request.Proxy = new WebProxy("10.3.18.90", 9000);
            request.Timeout = 20000;
            request.Method = "POST";
            request.Accept = "*/*";
            request.ContentType = "application/x-www-form-urlencoded";
            byte[] buffer = this.encoding.GetBytes(strPostdata);
            request.ContentLength = buffer.Length;
            request.GetRequestStream().Write(buffer, 0, buffer.Length);
            HttpWebResponse response = (HttpWebResponse)request.GetResponse();
            StreamReader reader = new StreamReader(response.GetResponseStream(), encoding);
            this.respHtml = reader.ReadToEnd();
            //foreach (System.Net.Cookie ck in response.Cookies)
            //{
            //    this.cookie += ck.Name + "=" + ck.Value + ";";
            //}
            reader.Close();
            return respHtml;
        }
其中的request.GetRequestStream().Write(buffer, 0, buffer.Length);这里出错了，提示无法连接远程服务器，怎样解决啊？

Answer 1

request.Proxy = new WebProxy("10.3.18.90", 9000);允许远程链接？

Answer 2

我觉得最主要的还是你采用什么发送方式
根据你现在的看是http方式

Answer 3

是根据http方式发送的，提示不是无法解析远程服务器名称就是无法连接。该怎样解决呀？

Answer 4

 public string Send(string value,bool keepAlive)
        {
            _Request1 = HttpWebRequest.Create("http://www.baidu.com") as HttpWebRequest;
            
            _Request1.Proxy = new WebProxy("10.3.18.90", 8013);
           
            _Request1.KeepAlive = true;
            _Request1.Method = "POST";
            _Request1.Timeout = 200000;
            //_Request1.SendChunked = true;
            _Request1.ContentType = "application/x-www-form-urlencoded";
            var buffer = UTF8Encoding.UTF8.GetBytes(value);
            byte[] data = encoding.GetBytes(value);
            _Request.ContentLength = data.Length;
            var stream = _Request1.GetRequestStream();
            
            stream.Write(buffer, 0, buffer.Length);
           
            var response = _Request1.GetResponse();
            var responseStream = response.GetResponseStream();
            var reader = new StreamReader(responseStream);
            stream.Close();
            reader.Close();
            return reader.ReadToEnd();
           
        }
用这个方法也是报错

Answer 5

  dataStream.Write(byteArray, 0, byteArray.Length);
                dataStream.Flush();//wince下面必须加上这两句 否则：在写入请求数据前，不能检索此请求的响应。/*The response for this request cannot be retrieved until request data  has been written*/
                dataStream.Close();
                response = (HttpWebResponse)request.GetResponse();