MQTT的学习研究（十三) IBM MQTTV3 简单发布订阅实例

时间：2015-07-02 13:47:24 阅读：133 评论：0 收藏：0 [点我收藏+]

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使用IBM MQTTv3实现相关的发布订阅功能

MQTTv3的发布消息的实现：

Java代码

package com.etrip.mqttv3;
import com.ibm.micro.client.mqttv3.MqttClient;
import com.ibm.micro.client.mqttv3.MqttDeliveryToken;
import com.ibm.micro.client.mqttv3.MqttMessage;
import com.ibm.micro.client.mqttv3.MqttTopic;
/**
* MQTTV3的发布消息类
*
* @author longgangbai
*/
public class MQTTPub {
public static void doTest(){
try {
MqttClient client = new MqttClient("tcp://192.168.208.46:1883","mqttserver-pub");
MqttTopic topic = client.getTopic("tokudu/china");
MqttMessage message = new MqttMessage("Hello World. Hello IBM".getBytes());
message.setQos(1);
client.connect();
while(true){
MqttDeliveryToken token = topic.publish(message);
while (!token.isComplete()){
token.waitForCompletion(1000);
}
}
} catch (Exception e) {
e.printStackTrace();
}
}
}

MQTTV3的订阅消息类

Java代码

package com.etrip.mqttv3;
import com.ibm.micro.client.mqttv3.MqttClient;
import com.ibm.micro.client.mqttv3.MqttConnectOptions;
/**
* MQTTV3的订阅消息类
*
* @author longgangbai
*/
public class MQTTSubsribe {
public static String doTest() {
try {
//创建MqttClient
MqttClient client = new MqttClient("tcp://192.168.208.46:1883", "java_client0000000000");
//回调处理类
CallBack callback = new CallBack();
client.setCallback(callback);
//创建连接可选项信息
MqttConnectOptions conOptions = new MqttConnectOptions();
//
conOptions.setCleanSession(false);
//连接broker
client.connect(conOptions);
//发布相关的订阅
client.subscribe("tokudu/china", 1);
//client.disconnect();
} catch (Exception e) {
e.printStackTrace();
return "failed";
}
return "success";
}
}

回调处理类处理订阅的消息类

Java代码

测试类：

Java代码

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原文地址：http://www.cnblogs.com/yudar/p/4615697.html

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