消息队列入门（四）ActiveMQ的应用实例

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<project xmlns="http://maven.apache.org/POM/4.0.0"

xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">

<modelVersion>4.0.0</modelVersion>

<groupId>activemq-sample</groupId>

<artifactId>activemq-sample</artifactId>

<version>0.0.1-SNAPSHOT</version>

<name>activemq-sample</name>

<description>an activemq practice</description>

<build>

<sourceDirectory>src</sourceDirectory>

<plugins>

<plugin>

<artifactId>maven-compiler-plugin</artifactId>

<version>3.1</version>

<configuration>

<source>1.7</source>

<target>1.7</target>

</configuration>

</plugin>

<!-- activemq-core 5.7.0 使用bunble打包，需要添加相关插件 -->

<plugin>

<groupId>org.apache.felix</groupId>

<artifactId>maven-bundle-plugin</artifactId>

<extensions>true</extensions>

</plugin>

</plugins>

</build>

<dependencies>

<!-- activemq的maven依赖 -->

<dependency>

<groupId>org.apache.activemq</groupId>

<artifactId>activemq-core</artifactId>

<version>5.7.0</version>

<type>bundle</type>

</dependency>

</dependencies>

</project>

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import javax.jms.Connection;

import javax.jms.ConnectionFactory;

import javax.jms.Destination;

import javax.jms.JMSException;

import javax.jms.MessageProducer;

import javax.jms.Session;

import javax.jms.TextMessage;

import org.apache.activemq.ActiveMQConnectionFactory;

/**

* @Description: Message Producer

* @author: Bing Yue

*/

public class MsgProducer {

//如果你在本地启动，可以直接使用空的ActiveMQConnectionFactory构造函数

private static final String BROKER_URL="failover://tcp://192.168.106.128:61616";

public static void main(String[] args) throws JMSException, InterruptedException{

//创建连接工厂

ConnectionFactory connectionFactory=new ActiveMQConnectionFactory(BROKER_URL);

//获得连接

Connection conn = connectionFactory.createConnection();

//start

conn.start();

//创建Session，此方法第一个参数表示会话是否在事务中执行，第二个参数设定会话的应答模式

Session session = conn.createSession(false, Session.AUTO_ACKNOWLEDGE);

//创建队列

Destination dest = session.createQueue("test-queue");

//创建消息生产者

MessageProducer producer = session.createProducer(dest);

for (int i=0;i<100;i++) {

//初始化一个mq消息

TextMessage message = session.createTextMessage("这是第 " + i+" 条消息！");

//发送消息

producer.send(message);

System.out.println("send message:消息"+i);

//暂停3秒

Thread.sleep(3000);

}

//关闭mq连接

conn.close();

}

}

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import javax.jms.Connection;

import javax.jms.ConnectionFactory;

import javax.jms.Destination;

import javax.jms.JMSException;

import javax.jms.Message;

import javax.jms.MessageConsumer;

import javax.jms.MessageListener;

import javax.jms.Session;

import javax.jms.TextMessage;

import org.apache.activemq.ActiveMQConnectionFactory;

/**

*

* @Description: Message Consumer

* @author: Bing Yue

*/

public class MsgConsumer implements MessageListener {

private static final String BROKER_URL="failover://tcp://192.168.106.128:61616";

public static void main(String[] args) throws JMSException{

//创建连接工厂

ConnectionFactory connectionFactory=new ActiveMQConnectionFactory(BROKER_URL);

//获得连接

Connection conn = connectionFactory.createConnection();

//start

conn.start();

//创建Session，此方法第一个参数表示会话是否在事务中执行，第二个参数设定会话的应答模式

Session session = conn.createSession(false, Session.AUTO_ACKNOWLEDGE);

//创建队列

Destination dest = session.createQueue("test-queue");

//创建消息生产者

MessageConsumer consumer = session.createConsumer(dest);

//初始化MessageListener

MsgConsumer msgConsumer = new MsgConsumer();

//给消费者设定监听对象

consumer.setMessageListener(msgConsumer);

}

/**

* 消费者需要实现MessageListener接口

* 接口有一个onMessage(Message message)需要在此方法中做消息的处理

*/

@Override

public void onMessage(Message msg) {

TextMessage txtMessage = (TextMessage)msg;

try {

System.out.println("get message:" + txtMessage.getText());

} catch (JMSException e) {

e.printStackTrace();

}

}

}