ActiveMQ 入门例子

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一：新建Maven项目，加入如下依赖

<dependency><groupId>org.apache.activemq</groupId><artifactId>activemq-all</artifactId><version>5.11.1</version></dependency>

二：

server（嵌入式，无需下载安装activemq）

package com.lala.mq;import java.util.concurrent.TimeUnit;import org.apache.activemq.broker.BrokerService;public class Server {public static void main(String[] args)throws Exception{BrokerService broker = new BrokerService();broker.addConnector("tcp://127.0.0.1:55551");broker.setUseJmx(false);broker.start();TimeUnit.SECONDS.sleep(9999);}}

Producer（生产者）

package com.lala.mq;import javax.jms.Connection;import javax.jms.ConnectionFactory;import javax.jms.MessageProducer;import javax.jms.Queue;import javax.jms.Session;import javax.jms.TextMessage;import org.apache.activemq.ActiveMQConnectionFactory;public class MyProducer{public static void main(String[] args) throws Exception{ConnectionFactory cf = new ActiveMQConnectionFactory("tcp://127.0.0.1:55551");Connection conn = cf.createConnection();conn.start();Session session = conn.createSession(false, Session.AUTO_ACKNOWLEDGE);Queue queue = session.createQueue("cib");MessageProducer producer = session.createProducer(queue);TextMessage tm = null;for(int i=1;i<=5;i++){tm = session.createTextMessage("this is test message and msgid = " + i);producer.send(tm);}session.close();conn.close();}}

Consumer（消费者）

package com.lala.mq;import javax.jms.Connection;import javax.jms.ConnectionFactory;import javax.jms.MessageConsumer;import javax.jms.Queue;import javax.jms.Session;import javax.jms.TextMessage;import org.apache.activemq.ActiveMQConnectionFactory;public class MyConsumer {public static void main(String[] args)throws Exception{ConnectionFactory cf = new ActiveMQConnectionFactory("tcp://127.0.0.1:55551");Connection conn = cf.createConnection();conn.start();Session session = conn.createSession(false, Session.AUTO_ACKNOWLEDGE);Queue queue = session.createQueue("cib");MessageConsumer consumer = session.createConsumer(queue);consumer.setMessageListener((message) -> {TextMessage tm = (TextMessage)message;try {System.out.println("收到消息：" + tm.getText());} catch (Exception e) {e.printStackTrace();}});}}

三：运行

先运行：Server

再运行：Consumer

最后运行：Producer

即可看到输出

最后

注意：以上做法不需要事先下载安装activemq服务

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