生餐者：

package clc.active.listener;import org.apache.activemq.ActiveMQConnectionFactory;import org.testng.annotations.Test;import javax.jms.Connection;import javax.jms.ConnectionFactory;import javax.jms.Destination;import javax.jms.JMSException;import javax.jms.Message;import javax.jms.MessageProducer;import javax.jms.Session;import java.util.Random;/** * ClassName: ObjectProducer
 * Description: 
 * date: 2019/1/15 3:25 PM
 * * @author chengluchao * @since JDK 1.8 */public class ObjectProducer {    @Test    public void sendMessage() {        ConnectionFactory factory = null;        Connection connection = null;        Session session = null;        Destination destination = null;        MessageProducer producer = null;        Message message = null;        try {            factory = new ActiveMQConnectionFactory("admin", "admin", "tcp://2.2.2.4:61616");            connection = factory.createConnection();            session = connection.createSession(false, Session.CLIENT_ACKNOWLEDGE);            destination = session.createQueue("test-listener");            producer = session.createProducer(destination);            connection.start();            Random r = new Random();            for (int i = 0; i < 100; i++) {                Integer data = i;                message = session.createObjectMessage(data);                producer.send(message);            }        } catch (Exception e) {            e.printStackTrace();        } finally {            // 回收资源            //消息发送者            if (producer != null) {                try {                    producer.close();                } catch (JMSException jmse) {                    jmse.printStackTrace();                }            }            //会话对象            if (session != null) {                try {                    session.close();                } catch (JMSException jmse) {                    jmse.printStackTrace();                }            }            //连接对象            if (connection != null) {                try {                    connection.close();                } catch (JMSException jmse) {                    jmse.printStackTrace();                }            }        }    }}

消费者：

package clc.active.listener;import org.apache.activemq.ActiveMQConnectionFactory;import org.testng.annotations.Test;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.MessageProducer;import javax.jms.ObjectMessage;import javax.jms.Session;import java.util.Random;/** * ClassName: ConsumerListener
 * Description: 
 * date: 2019/1/15 3:25 PM
 * * @author chengluchao * @since JDK 1.8 */public class ConsumerListener {    @Test    public void consumMessage() {        ConnectionFactory factory = null;        Connection connection = null;        Session session = null;        Destination destination = null;        MessageConsumer consumer = null;        try {            factory = new ActiveMQConnectionFactory("admin", "admin", "tcp://2.2.2.4:61616");            connection = factory.createConnection();            connection.start();            session = connection.createSession(false, Session.CLIENT_ACKNOWLEDGE);//客户端确认            destination = session.createQueue("test-listener");            consumer = session.createConsumer(destination);            //注册监听器，注册成功后，队列中的消息变化，会自动触发监听器代码            consumer.setMessageListener(new MessageListener() {                /*                监听器一旦注册，永久有效                永久 - consumer线程不关闭                处理消息的方式：只要有消息未处理，自动调用onMessage方法，处理消息                监听器可以注册若干。注册多个监听器，相当于集群                ActiveMQ自动的循环调用多个监听器，处理队列中的消息，并实现处理                处理消息的方法，就是监听方法                 */                @Override                public void onMessage(Message message) {                    try {                        //acknowledge方法，就是确认方法，代表consumer已经收到消息，确认后，MQ可以删除对应的消息                        message.acknowledge();                        ObjectMessage om = (ObjectMessage) message;                        Object data = om.getObject();                        System.out.println(data);                    } catch (JMSException e) {                        e.getErrorCode();                    }                }            });            //阻塞当前代码，保证listener代码结束，如果代码结束了，监听器自动关闭            System.in.read();        } catch (Exception e) {            e.printStackTrace();        } finally {            // 回收资源            if (consumer != null) {                try {                    consumer.close();                } catch (JMSException jmse) {                    jmse.printStackTrace();                }            }            //会话对象            if (session != null) {                try {                    session.close();                } catch (JMSException jmse) {                    jmse.printStackTrace();                }            }            //连接对象            if (connection != null) {                try {                    connection.close();                } catch (JMSException jmse) {                    jmse.printStackTrace();                }            }        }    }}