Http Post GBK编码参数C#代码示例

     接受请求的网站是GBK编码，Http Post请求参数也需要用GBK编码，以下是一段代码示例

    

                    String sResult = "";
                Encoding myEncoding = Encoding.GetEncoding("GBK");
                string param = HttpUtility.UrlEncode("merId", myEncoding) + "=" + HttpUtility.UrlEncode(merId, myEncoding)
                    + "&" + HttpUtility.UrlEncode("merDate", myEncoding) + "=" + HttpUtility.UrlEncode(merDate, myEncoding)
                    + "&" + HttpUtility.UrlEncode("merSeqId", myEncoding) + "=" + HttpUtility.UrlEncode(merSeqId, myEncoding)
                    + "&" + HttpUtility.UrlEncode("version", myEncoding) + "=" + HttpUtility.UrlEncode(version, myEncoding)
                    + "&" + HttpUtility.UrlEncode("chkValue", myEncoding) + "=" + HttpUtility.UrlEncode(sbValue.ToString(), myEncoding);
                byte[] postBytes = Encoding.ASCII.GetBytes(param);
                try
                {
                    
                    HttpWebRequest req = (HttpWebRequest)HttpWebRequest.Create("请求地址");
                    req.Method = "POST";
                    req.ContentType = "application/x-www-form-urlencoded;charset=GBK";
                    req.ContentLength = postBytes.Length;
                    Stream webStream = req.GetRequestStream(); //发送数据 
                    webStream.Write(postBytes, 0, postBytes.Length);
                    webStream.Close();
                    //获取返回数据
                    HttpWebResponse webResponse = (HttpWebResponse)req.GetResponse();
                    StreamReader reader = new StreamReader(webResponse.GetResponseStream(), Encoding.GetEncoding("GBK"));
                    sResult = reader.ReadToEnd();
                    sResult.Trim();
                }
                catch (Exception e)
                {
                    sResult = "";
                    return sResult;
                }