Hi all:

  I need to send a stream to servle doPost, Now I use
HttpURLConnection to call.

same times is work well, but same times is not work,

the simple code:

            urlCach = new URL("http://192.168.0.88:8080/servlet/SMS");
            urlconCach = (HttpURLConnection)urlCach.openConnection();
            urlconCach.setDoOutput(true);
            urlconCach.setRequestMethod("POST");
            urlconCach.setUseCaches(false);
            urlconCach.setDefaultUseCaches(false);

            CachWriter = new OutputStreamWriter(urlconCach.getOutputStream(),
                    "GB2312");
            CachWriter.write("same xml string");
            CachWriter.flush();
            CachWriter.close();

            urlconCach.getResponseMessage();
            urlconCach.disconnect();