返回：{"errcode":43002,"errmsg":"require POST method hint: [pklFSbMre-] rid: 5fe34695-189c82be-5a3f6937"}

代码：

string url = "http://api.weixin.qq.com/wxa/business/getliveinfo?access_token={0}";

                string token = JsCode2Session();

                string serviceUrl = string.Format(url, token);

                var httpWebRequest = (HttpWebRequest)WebRequest.Create(serviceUrl);

                httpWebRequest.ContentType = "application/json;charset=utf8"; //;charset=UTF-8

                httpWebRequest.Method = "POST";

                using (var streamWriter = new StreamWriter(httpWebRequest.GetRequestStream()))

                {

                    string json = "{\"strat\":\""+ strat + "\",\"limit\":\""+ limit + "\"}";

                    streamWriter.Write(json);

                    streamWriter.Flush();

                    streamWriter.Close();

                }

                var httpResponse = (HttpWebResponse)httpWebRequest.GetResponse();

                using (var streamReader = new StreamReader(httpResponse.GetResponseStream()))

                {

                    var result = streamReader.ReadToEnd();

                    return ResultJson("成功", result, 0);

                }