1. spring configuration file for message acquisition by listener

Different from manual mode

<!-- Scanning package -->
	<context:component-scan base-package="com.djc.jms" />
	
	<!-- ActiveMQ Connection factory -->
    <amq:connectionFactory id="amqConnectionFactory"
        brokerURL="tcp://localhost:61616" userName="admin" password="admin"  />

    <!-- Spring Caching Connection factory -->
    <bean id="connectionFactory" class="org.springframework.jms.connection.CachingConnectionFactory">
        <property name="targetConnectionFactory" ref="amqConnectionFactory"></property>
        <property name="sessionCacheSize" value="100" />
    </bean>
    
     <!-- Spring JmsTemplate News producer start-->
    <jms:listener-container  destination-type="queue" container-type="default" connection-factory="connectionFactory">
       <jms:listener destination="queue_test" ref="queueListener"/>
    </jms:listener-container>
    
     <jms:listener-container  destination-type="topic" container-type="default" connection-factory="connectionFactory">
       <jms:listener destination="topic_test" ref="topicListener1"/>
       <jms:listener destination="topic_test" ref="topicListener2" />
    </jms:listener-container>

2.queue pattern

A class is needed to implement the MessageListener interface, which is handed over to spring management using @Component

@Component
public class QueueListener implements MessageListener {
	@Override
	public void onMessage(Message arg0) {
		try {
			TextMessage message = (TextMessage) arg0;
			System.out.println("spring Receive a message=="+message.getText());
		} catch (JMSException e) {
			e.printStackTrace();
		}
	}	
}

3.topic mode

In order to test the topic pattern conveniently, two kinds of patterns are written to imitate two consumers.

//First class
@Component
public class TopicListener1 implements MessageListener {

	@Override
	public void onMessage(Message arg0) {
		try {
			MapMessage message = (MapMessage) arg0;
			System.out.println("TopicListener1 Receive a message=="+message.getString("username"));
		} catch (JMSException e) {
			e.printStackTrace();
		}
	}

//Second categories
@Component
public class TopicListener2 implements MessageListener {

	@Override
	public void onMessage(Message arg0) {
		try {
			MapMessage message = (MapMessage) arg0;
			System.out.println("TopicListener2 Receive a message=="+message.getString("username"));
		} catch (JMSException e) {
			e.printStackTrace();
		}
	}	
}

4. test

Write a test class to facilitate testing and load configuration files

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration("classpath:applicationContext-mq-consumer.xml")
public class SpringActiveMQListener {
	@Test
	public void testRun(){
		while(true);	//Keep the method running
	}
}

Finally, by starting to write messages to the middleware, the listener will listen automatically.