Spring Jms集成ActiveMQ学习记录。

引入依赖包

无论生产者还是消费者均引入这些包：

<properties>

    <spring.version>3.0.5.RELEASE</spring.version>

</properties>

<dependencies>

       <dependency>

           <groupId>org.springframework</groupId>

           <artifactId>spring-jms</artifactId>

           <version>${spring.version}</version>

       </dependency>

       <dependency>

           <groupId>org.apache.activemq</groupId>

           <artifactId>activemq-core</artifactId>

           <version>5.7.0</version>

       </dependency>

</dependencies>

生产者

先注册连接工厂、QueueTemplate等Bean：

<?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"

    xmlns:jms="http://www.springframework.org/schema/jms"

    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd

    http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd

    http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd

    http://www.springframework.org/schema/jms http://www.springframework.org/schema/jms/spring-jms-3.0.xsd">

    <context:component-scan base-package="com.nicchagil" />    

    <!-- ActiveMQ的连接工厂 -->

    <bean id="activeMQConnectionFactory" class="org.apache.activemq.ActiveMQConnectionFactory">

        <property name="brokerURL" value="tcp://192.168.1.101:61616"/>

    </bean>

    <!-- Spring的连接工厂 -->

    <bean id="connectionFactory" class="org.springframework.jms.connection.CachingConnectionFactory">

        <property name="targetConnectionFactory" ref="activeMQConnectionFactory"></property>

        <!-- Session缓存数量 -->

        <property name="sessionCacheSize" value="100" />

    </bean>

    <!-- 队列模式 -->

    <bean id="jmsQueueTemplate" class="org.springframework.jms.core.JmsTemplate">

        <constructor-arg ref="connectionFactory" />

        <!-- 非发布/订阅模型，即队列模式 -->

        <property name="pubSubDomain" value="false" />

    </bean>

    <!-- 发布/订阅模式 -->

    <bean id="jmsTopicTemplate" class="org.springframework.jms.core.JmsTemplate">

        <constructor-arg ref="connectionFactory" />

        <!-- 发布/订阅模式 -->

        <property name="pubSubDomain" value="true" />

    </bean>

    <!-- 队列 -->

    <bean id="testQueue" class="org.apache.activemq.command.ActiveMQQueue">

        <!-- 队列名 -->

        <constructor-arg>

            <value>testQueue</value>

        </constructor-arg>

    </bean>

</beans>

此类完全模拟正常的Service

package com.nicchagil;

import javax.annotation.Resource;

import javax.jms.Destination;

import javax.jms.JMSException;

import javax.jms.Message;

import javax.jms.Session;

import org.springframework.jms.core.JmsTemplate;

import org.springframework.jms.core.MessageCreator;

import org.springframework.stereotype.Service;

@Service

public class ProducerService {

	@Resource(name="jmsQueueTemplate")

	private JmsTemplate jmsTemplate;

    public void sendMessage(Destination destination, final String message) {

        jmsTemplate.send(destination, new MessageCreator() {

            public Message createMessage(Session session) throws JMSException {

                return session.createTextMessage(message);

            }

        });

    }   

}

这里模拟调用Service去发送一条消息：

package com.nicchagil;

import org.apache.activemq.command.ActiveMQQueue;

import org.springframework.context.support.ClassPathXmlApplicationContext;

import com.nicchagil.ProducerService;

public class HowToUse {

    public static void main(String[] args) {

		ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext(new String[] {"spring-activemq.xml"});

		context.start();

		ProducerService producerService = (ProducerService)context.getBean("producerService");

		ActiveMQQueue activeMQQueue = (ActiveMQQueue)context.getBean("testQueue");

		producerService.sendMessage(activeMQQueue, "hello.");

	}

}

消费者

注册连接工厂、监听器等Bean：

<?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"

    xmlns:jms="http://www.springframework.org/schema/jms"

    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd

    http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd

    http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd

    http://www.springframework.org/schema/jms http://www.springframework.org/schema/jms/spring-jms-3.0.xsd">

    <context:component-scan base-package="com.nicchagil" />    

    <!-- ActiveMQ的连接工厂 -->

    <bean id="activeMQConnectionFactory" class="org.apache.activemq.ActiveMQConnectionFactory">

        <property name="brokerURL" value="tcp://192.168.1.101:61616"/>

    </bean>  

    <!-- Spring的连接工厂 -->

    <bean id="connectionFactory" class="org.springframework.jms.connection.CachingConnectionFactory">

        <property name="targetConnectionFactory" ref="activeMQConnectionFactory"></property>

        <!-- Session缓存数量 -->

        <property name="sessionCacheSize" value="100" />

    </bean>

    <!-- 队列 -->

    <bean id="testQueue" class="org.apache.activemq.command.ActiveMQQueue">

        <!-- 队列名 -->

        <constructor-arg>

            <value>testQueue</value>

        </constructor-arg>

    </bean>

    <!-- 监听器 -->

    <bean id="queueMessageListener" class="com.nicchagil.QueueMessageListener" />

    <!-- 消息监听容器 -->

    <bean id="queueListenerContainer"

        class="org.springframework.jms.listener.DefaultMessageListenerContainer">

        <property name="connectionFactory" ref="connectionFactory" />

        <property name="destination" ref="testQueue" />

        <property name="messageListener" ref="queueMessageListener" />

    </bean>

</beans>

消费者的主要业务逻辑，这里只简单地打印消息：

package com.nicchagil;

import javax.jms.JMSException;

import javax.jms.Message;

import javax.jms.MessageListener;

import javax.jms.TextMessage;

public class QueueMessageListener implements MessageListener {

    @Override

    public void onMessage(Message message) {

        TextMessage textMessage = (TextMessage) message;

        try {

            System.out.println("处理消息：" + textMessage.getText());

        } catch (JMSException e) {

            e.printStackTrace();

        }

    }

}

消费者启动类：

package com.nicchagil;

import java.io.IOException;

import org.springframework.context.support.ClassPathXmlApplicationContext;

public class Boot {

    public static void main(String[] args) throws IOException {

		ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext(new String[] {"spring-activemq.xml"});

		context.start();

		System.in.read();

	}

}

运行Boot和HowToUse可看效果。