ActiveMQ与Spring整合-MessageListener

消费者，使用监听的实现方式。

1. pom.xml 

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？");

    }
}