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();

         }