string strReturn = "";

            string url = @"http://aa.XXX.com/bb.do";

            try

            {

                byte[] obtPostData = Encoding.UTF8.GetBytes(sbJSON.ToString());

                HttpWebRequest orqRequest = (HttpWebRequest)WebRequest.Create(url);

                orqRequest.Timeout = 3000;



                orqRequest.Method = "POST";

                orqRequest.ContentType = "application/json;charset=utf-8";

                orqRequest.ContentLength = obtPostData.Length;





                Stream stream;

                using (stream = orqRequest.GetRequestStream())

                {

                    stream.Write(obtPostData, 0, obtPostData.Length);

                }



                HttpWebResponse orsResponse = (HttpWebResponse)orqRequest.GetResponse();



                using (Stream responseStream = orsResponse.GetResponseStream())

                {

                    using (StreamReader streamRead = new StreamReader(responseStream, Encoding.UTF8))

                    {

                        strReturn = streamRead.ReadToEnd();

                    }

                }



            }

            catch (WebException e)

            {

                //写日志

               &