C# Post Get 方式发送请求

httpPost 方式发送请求 不带参数

         /// <summary>

         /// 没有参数的post请求

         /// </summary>

         public void HttpPostNoParam()

         {　

              string Url = "请求地址";

              HttpWebRequest request = WebRequest.CreateHttp(Url);

              request.Method = "POST";

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

              Stream myRequestStream = request.GetRequestStream();

              StreamWriter myStreamWriter = new StreamWriter(myRequestStream, Encoding.GetEncoding("gb2312"));

              myStreamWriter.Close();

              myRequestStream.Close();

  　　　　　　　

              HttpWebResponse response = (HttpWebResponse)request.GetResponse();

              Stream myResponseStream = response.GetResponseStream();

              StreamReader myStreamReader = new StreamReader(myResponseStream, Encoding.GetEncoding("utf-8"));

              string retString = myStreamReader.ReadToEnd();

              myStreamReader.Close();

              myResponseStream.Close();

         }

httpPost 方式发送请求 带参数

           /// <summary>

          /// 带有参数的post请求
　　　　　　　/// UserID、TransFlow 参数名

          /// </summary>

          public void HttpPostParam()

          {　  string Url = "请求地址";

              HttpWebRequest request = WebRequest.CreateHttp(Url);

              request.Method = "POST";

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

              string param = "UserID=2098&TransFlow=2";

              byte[] by;

              by = System.Text.Encoding.UTF8.GetBytes(param);

              request.ContentLength = by.Length;

              Stream myRequestStream = request.GetRequestStream();

              StreamWriter myStreamWriter = new StreamWriter(myRequestStream, Encoding.GetEncoding("gb2312"));

              myRequestStream.Write(by, , by.Length);

              myStreamWriter.Close();

              myRequestStream.Close();

              HttpWebResponse response = (HttpWebResponse)request.GetResponse();

              Stream myResponseStream = response.GetResponseStream();

              StreamReader myStreamReader = new StreamReader(myResponseStream, Encoding.GetEncoding("utf-8"));

              string retString = myStreamReader.ReadToEnd();

              myStreamReader.Close();

              myResponseStream.Close();

         }

httpGet 方式发送请求

         /// <summary>

         /// Get方式

         /// </summary>

         public void HttpGet()

         {

             string url = "请求地址?ID=2";

             HttpWebRequest request = WebRequest.CreateHttp(url);

             request.Method = "Get";

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

             HttpWebResponse response = (HttpWebResponse)request.GetResponse();

             Stream read = response.GetResponseStream();

             StreamReader sm = new StreamReader(read, System.Text.Encoding.UTF8);

             string readString = sm.ReadToEnd();

         }