GCMComminication底层连接关闭错误发送时发生意外错误

Question

我收到错误：“当使用下面的代码时，基础连接已关闭，发送时发生意外错误”tRequest.GetResponse（）上会抛出异常;

            WebRequest tRequest = WebRequest.Create("https://android.googleapis.com/gcm/send");
            tRequest.Method = "post";
            tRequest.ContentType = " application/x-www-form-urlencoded;charset=UTF-8";
            tRequest.Headers.Add(string.Format("Authorization: key={0}", applicationID));

            int iRetryTime = 1;
            if (NotificationRetryTime > 10)
                iRetryTime = NotificationRetryTime - 10;


            string postData =
                 "collapse_key=score_update&time_to_live=" + iRetryTime.ToString() + "&delay_while_idle=0&data.message="
                  + value + "&data.time=" + System.DateTime.Now.ToString() + "&registration_id=" +
                     regId + "";




            Byte[] byteArray = Encoding.UTF8.GetBytes(postData);
            tRequest.ContentLength = byteArray.Length;
            Stream dataStream = tRequest.GetRequestStream();
            dataStream.Write(byteArray, 0, byteArray.Length);
            dataStream.Close();

            WebResponse tResponse = tRequest.GetResponse();

            dataStream = tResponse.GetResponseStream();
            StreamReader tReader = new StreamReader(dataStream);
            String sResponseFromServer = tReader.ReadToEnd();   //Get response from GCM server.

            tReader.Close();
            dataStream.Close();
            tResponse.Close();

Answer 1

事实证明，我们的网络团队在网络级别阻止了gcm。网络配置更改后，我已成功拨打gcm。