测试:
先把配置文件整理一下
重启mq
import org.apache.activemq.ActiveMQConnectionFactory; import javax.jms.*; public class PersistenceSender { public static void main(String[] args) throws JMSException { ConnectionFactory connectionFactory = new ActiveMQConnectionFactory("tcp://192.168.25.128:61616"); Connection connection = connectionFactory.createConnection(); Session session = connection.createSession(Boolean.TRUE, Session.AUTO_ACKNOWLEDGE); Destination destination = session.createTopic("VirtualTopic.MyTopic3"); MessageProducer producer = session.createProducer(destination); producer.setDeliveryMode(DeliveryMode.PERSISTENT); connection.start(); for (int i = 0; i < 3; i++) { TextMessage message = session.createTextMessage("message333--" + i); producer.send(message); } session.commit(); session.close(); connection.close(); } }
import org.apache.activemq.ActiveMQConnectionFactory; import javax.jms.*; public class QueueReceiver1 { public static void main(String[] args) throws JMSException, InterruptedException { ConnectionFactory connectionFactory = new ActiveMQConnectionFactory("tcp://192.168.25.128:61616"); for (int i = 0; i < 3; i++) { Thread t = new MyThread(connectionFactory); t.start(); Thread.sleep(1000); } } } class MyThread extends Thread { private ConnectionFactory connectionFactory = null; public MyThread(ConnectionFactory connectionFactory) { this.connectionFactory = connectionFactory; } @Override public void run() { try { final Connection connection = connectionFactory.createConnection(); connection.start(); final Session session = connection.createSession(true, Session.AUTO_ACKNOWLEDGE); Destination destination = session.createQueue("Consumer.A.VirtualTopic.MyTopic3"); MessageConsumer consumer = session.createConsumer(destination); consumer.setMessageListener(new MessageListener() { @Override public void onMessage(Message message) { TextMessage txtMsg = (TextMessage) message; try { System.out.println("Receiver111===" + txtMsg.getText()); session.commit(); session.close(); connection.close(); } catch (Exception e) { e.printStackTrace(); } } }); } catch (JMSException e) { e.printStackTrace(); } } }
先启动消费者。然后,启动生产者。消费者成功收到消息。在3个消费者的角度来看,他们是从queue里面拿消息的。
把消费者2加进来
import org.apache.activemq.ActiveMQConnectionFactory; import javax.jms.*; public class QueueReceiver2 { public static void main(String[] args) throws JMSException, InterruptedException { ConnectionFactory connectionFactory = new ActiveMQConnectionFactory("tcp://192.168.25.128:61616"); for (int i = 0; i < 3; i++) { Thread t = new MyThread2(connectionFactory); t.start(); Thread.sleep(1000); } } } class MyThread2 extends Thread { private ConnectionFactory connectionFactory = null; public MyThread2(ConnectionFactory connectionFactory) { this.connectionFactory = connectionFactory; } @Override public void run() { try { final Connection connection = connectionFactory.createConnection(); connection.start(); final Session session = connection.createSession(true, Session.AUTO_ACKNOWLEDGE); Destination destination = session.createQueue("Consumer.B.VirtualTopic.MyTopic3"); MessageConsumer consumer = session.createConsumer(destination); consumer.setMessageListener(new MessageListener() { @Override public void onMessage(Message message) { TextMessage txtMsg = (TextMessage) message; try { System.out.println("Receiver222===" + txtMsg.getText()); session.commit(); session.close(); connection.close(); } catch (Exception e) { e.printStackTrace(); } } }); } catch (JMSException e) { e.printStackTrace(); } } }
运行一下消费者2.
再运行生产者,消费者1,消费者2。
消费者1,消费者2各自都能收到3条消息。
测试:
测试:
import org.apache.activemq.ActiveMQConnectionFactory; import javax.jms.*; public class QueueSender { public static void main(String[] args) throws JMSException, InterruptedException { ConnectionFactory connectionFactory = new ActiveMQConnectionFactory("tcp://192.168.25.128:61616"); Connection connection = connectionFactory.createConnection(); connection.start(); Session session = connection.createSession(Boolean.TRUE, Session.AUTO_ACKNOWLEDGE); Destination destination = session.createQueue("my-queue"); MessageProducer producer = session.createProducer(destination); for (int i = 0; i < 3; i++) { TextMessage message = session.createTextMessage("message999--" + i); producer.send(message); } session.commit(); session.close(); connection.close(); } }
运行生产者
import org.apache.activemq.ActiveMQConnectionFactory; import javax.jms.*; public class PersistenceReceiver { public static void main(String[] args) throws JMSException { ConnectionFactory factory = new ActiveMQConnectionFactory("tcp://192.168.25.128:61616"); Connection connection = factory.createConnection(); connection.setClientID("cc1"); Session session = connection.createSession(true, Session.AUTO_ACKNOWLEDGE); Topic topic = session.createTopic("my-queue.qmirror"); TopicSubscriber consumer = session.createDurableSubscriber(topic, "t1"); connection.start(); Message message = consumer.receive(); while (message != null) { TextMessage txtMsg = (TextMessage) message; System.out.println("收到消息:" + txtMsg.getText()); message = consumer.receive(1000L); } session.commit(); session.close(); connection.close(); } }
持久化的消费者。先注册一下。然后,再消费。