利用WebRequest发送和获取数据

客户端代码

 发送数据

   private void button2_Click(object sender, EventArgs e)        {           string aa=GetWebStream("http://10.16.76.60/web7/Default.aspx", "data=456", "post", 10000);           MessageBox.Show(aa);        }

       /// <summary>        /// WebRequest 发布        /// </summary>        /// <param name="url">发布url</param>        /// <param name="sendtype">发布类型，post get</param>        /// <returns></returns>        static public string GetWebStream(string url, string param, string sendtype, int timeout)        {            string responseFromServer = "";            string StatusDescription = "";            //url = "http://query.szdod.com/";            try            {                byte[] bs = Encoding.ASCII.GetBytes(param);                // Create a request for the URL.                  WebRequest request = WebRequest.Create(url);                //设置超时和发送方式                request.Timeout = timeout;                request.Headers.Set("Pragma", "no-cache");                request.Method = sendtype;                request.ContentType = "application/x-www-form-urlencoded";                request.ContentLength = bs.Length;                Stream dataStream = request.GetRequestStream();                dataStream.Write(bs, 0, bs.Length);                HttpWebResponse response = (HttpWebResponse)request.GetResponse();                StatusDescription = response.StatusDescription;                // Get the stream containing content returned by the server.                dataStream = response.GetResponseStream();                // Open the stream using a StreamReader for easy access.                StreamReader reader = new StreamReader(dataStream);                // Read the content.                responseFromServer = reader.ReadToEnd();                // Cleanup the streams and the response.                reader.Close();                dataStream.Close();                response.Close();            }            catch (Exception ex)            {                throw new Exception(ex.Message + ":" + StatusDescription);            }            if (responseFromServer == null)            {                responseFromServer = "";            }            return responseFromServer;        }

 

 

 服务器端代码

 

  服务器端是一个网页用来接收数据

protected void Page_Load(object sender, EventArgs e)    {              if (Request.Form["data"] != null && Request.Form["data"].ToString().Length > 0)            {                string lcdata = Request.Form["data"].ToString();                //对数据进行验证                               lcdata = HttpUtility.UrlDecode(Request.Form["lcdata"].ToString(), System.Text.Encoding.UTF8);                              //返回给客户端的数据                Response.Write("中华人民共和国");                         Response.End();            }    }