Android 服务端消息推送 --求大神帮助

错误信息如下：



代码：
private boolean pushXmpp(JSONObject obj) throws Exception {
boolean result = true;
log.info("pushXmpp start");
try {
connect();
if (this.mConnected) {
String title = obj.getString("title");
int pushtype = obj.getInt("pushtype");
String paramid = obj.getString("paramid");
String paramid2 = obj.getString("paramid2");
String deviceid = obj.getString("deviceid");

// String to = deviceid + "@" + PropertiesUtils.XMPP_SERVICE_NAME;
Message msg = new Message();
obj.remove("deviceid");

// msg.setFrom(PropertiesUtils.USER_NAME + "@" + PropertiesUtils.XMPP_SERVICE_NAME);
// msg.setTo(to);
msg.setFrom(PropertiesUtils.XMPP_SERVICE_NAME);
msg.setTo(deviceid);
JSONObject messages = new JSONObject();
messages.put("title", title);
messages.put("pushtype",pushtype);
messages.put("paramid", paramid);
messages.put("paramid2", paramid2);
msg.setBody(messages.toString());
this.mConn.sendPacket(msg);


Thread.sleep(2000);
//log.info("pushXmpp sendTo:"+to +" success");
this.mConn.disconnect();
log.info("pushXmpp disconnect");
} else {
//throw new Exception("failed to connect Xmpp Server");
result = false;
}
} catch (Exception e) {
result = false;
//如果推送出现错误，跳过这个推送，保存日记记录
StringWriter sw = new StringWriter();
        PrintWriter pw = new PrintWriter(sw);
        e.printStackTrace(pw);
    log.info(sw.toString());

//throw new JSONException(e.getMessage());
} finally {
this.mConn = null;
log.info("connect end");
}

return result;
}

XMPP协议复杂了， MQTT最合适