ActiveMQ入门教程(六) - ActiveMQ与Spring整合-MessageListener

在这一篇博客分享一下消费者,使用监听的实现方式。

1. pom.xml

和上一篇一样 : ActiveMQ入门教程(五) - ActiveMQ与Spring整合


2. 生产者

package org.ygy.mq.lesson04;

import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.Session;

import org.springframework.jms.core.JmsTemplate;
import org.springframework.jms.core.MessageCreator;

/**
 * 
 * @author 于贵洋
 * @description 生产者
 * @time 2013-10-14
 * @version V1.0
 */
public class Lesson4Producer {
	private JmsTemplate jmsTemplate;

	public JmsTemplate getJmsTemplate() {
		return jmsTemplate;
	}

	public void setJmsTemplate(JmsTemplate jmsTemplate) {
		this.jmsTemplate = jmsTemplate;
	}
	
	//使用JMSTemplate发送消息
	public void send(final String msg) {
		jmsTemplate.send(new MessageCreator() {
			public Message createMessage(Session session) throws JMSException {
				return session.createTextMessage(msg);
			}
		});
	}

}

3. 消费者

package org.ygy.mq.lesson04;

import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.MessageListener;
import javax.jms.TextMessage;

/**
 * 
 * @author 于贵洋
 * @description 通过监听的方式实现消费者
 * @time 2013-10-14
 * @version V1.0
 */
public class Lesson4Consumer implements MessageListener {

	@Override
	public void onMessage(Message message) {
		TextMessage textMsg = (TextMessage) message;
		try {
			System.out.println("接收到了消息,消息内容是:" + textMsg.getText());
		} catch (JMSException e) {
			e.printStackTrace();
		}
	}

}

4. 配置文件

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context"
	xsi:schemaLocation="http://www.springframework.org/schema/beans 
        http://www.springframework.org/schema/beans/spring-beans-2.5.xsd 
        http://www.springframework.org/schema/context 
        http://www.springframework.org/schema/context/spring-context-2.5.xsd">


	<!-- 1.配置connectionFactory -->
	<bean id="jmsFactory" class="org.apache.activemq.pool.PooledConnectionFactory" destroy-method="stop">
		<property name="connectionFactory">
			<bean class="org.apache.activemq.ActiveMQConnectionFactory">
				<property name="brokerURL">
					<value>tcp://127.0.0.1:61616</value>
				</property>
			</bean>
		</property>
		<property name="maxConnections" value="100"></property>
	</bean>
	
	<!-- 2.定义消息目标 -->
	<bean id="destination" class="org.apache.activemq.command.ActiveMQQueue">
		<constructor-arg index="0" value="queue_temp"></constructor-arg>
	</bean>
	

	<!-- 3.配置Spring JMS Template -->
	<bean id="jmsTemplate" class="org.springframework.jms.core.JmsTemplate">
		<!-- 3.1 注入jmsFactory -->
		<property name="connectionFactory" ref="jmsFactory"></property>
		
		<!-- 3.2 配置消息目标 -->
		<property name="defaultDestination" ref="destination" />
	</bean>
	
	<!-- 4.配置生产者 -->
	<bean id="lesson4Producer" class="org.ygy.mq.lesson04.Lesson4Producer">
		<property name="jmsTemplate" ref="jmsTemplate"/>
	</bean>
	
	<!-- 5.配置消费者 -->
	<bean id="lesson4Consumer" class="org.ygy.mq.lesson04.Lesson4Consumer"></bean>
	
	<!-- 消息监听容器 -->  
	<bean id="jmsContainer" class="org.springframework.jms.listener.DefaultMessageListenerContainer"> 
	    <property name="connectionFactory" ref="jmsFactory" />  
	    <property name="destination" ref="destination" />  
	    <property name="messageListener" ref="lesson4Consumer" />  
	</bean>

</beans>

配置文件的话,重点关注消费者的配置,将其配置在一个消息监听容器中。

这里的监听容器有多个,明天会分享或者,直接转载一些文章。


5. 测试

package org.ygy.mq.lesson04;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

/**
 * 配置了监听容器
 * 
 * 参考:http://haohaoxuexi.iteye.com/blog/1893038
 * @author Administrator
 *
 */
public class Client4 {
	
	public static void main(String[] args) {
        ApplicationContext applicationContext = new ClassPathXmlApplicationContext("lesson4.xml");
        
        Lesson4Producer producer = (Lesson4Producer) applicationContext.getBean("lesson4Producer");
        
        producer.send("你在哪里啊?");
        producer.send("嗨,你好吗?");
        
	}
}


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