package com.huaheng.framework.mqtt; import org.eclipse.paho.client.mqttv3.IMqttDeliveryToken; import org.eclipse.paho.client.mqttv3.MqttCallback; import org.eclipse.paho.client.mqttv3.MqttMessage; public class CallBack implements MqttCallback { @Override public void connectionLost(Throwable arg0) { // TODO Auto-generated method stub System.out.println("连接断开,可以做重连"); } @Override public void deliveryComplete(IMqttDeliveryToken token) { // TODO Auto-generated method stub System.out.println("deliveryComplete---------" + token.isComplete()); } @Override public void messageArrived(String topic, MqttMessage message) throws Exception { // TODO Auto-generated method stub System.out.println("接收消息主题 : " + topic); System.out.println("接收消息Qos : " + message.getQos()); System.out.println("接收消息内容 : " + new String(message.getPayload())); } }