spring整合activemq发布订阅消息模式

maven引用

<dependency>
<groupId>org.apache.activemq</groupId>
<artifactId>activemq-pool</artifactId>
<version>5.9.0</version>
</dependency>
<dependency>
<groupId>org.apache.activemq</groupId>
<artifactId>activemq-all</artifactId>
<version>5.9.0</version>
</dependency>

<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jms</artifactId>
<version>4.3.3.RELEASE</version>
</dependency>

提供者配置文件（含订阅者配置文件）

<?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:jms="http://www.springframework.org/schema/jms"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/jms http://www.springframework.org/schema/jms/spring-jms-4.3.xsd"> <description>JMS配置</description>

<!-- ActiveMQ 连接工厂 -->
<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="${jms.broker_url}" />
<property name="userName" value="${jms.userName}" />
<property name="password" value="${jms.password}" />
</bean>
</property>
<property name="maxConnections" value="100"></property>
</bean>

<!-- Spring Caching 连接工厂 -->
<bean id="cachingConnectionFactory"
class="org.springframework.jms.connection.CachingConnectionFactory">
<property name="targetConnectionFactory" ref="jmsFactory" />
<property name="sessionCacheSize" value="10" />
</bean>

<!-- 发布订阅模式配置 -->
<bean id="jmsTemplatePubSub" class="org.springframework.jms.core.JmsTemplate">
<property name="connectionFactory" ref="cachingConnectionFactory" />
<!-- 区别它采用的模式为false是p2p为true是订阅 -->
<property name="pubSubDomain" value="true" />
<!-- receiveTimeout表示接收消息时的超时时间 -->
<property name="receiveTimeout" value="20000" />
</bean>

<bean id="updateDecisionFile" class="org.apache.activemq.command.ActiveMQTopic">
<!-- 设置消息队列的名字 -->
<constructor-arg index="0" value="update.decision.file" />
</bean>

<!-- 消息监听（订阅者）配置 -->
<bean id="updateDecisionFileContainer"
class="org.springframework.jms.listener.DefaultMessageListenerContainer">
<property name="connectionFactory" ref="cachingConnectionFactory" />
<!-- 发布订阅模式   -->
<property name="pubSubDomain" value="true"/>
<property name="destination" ref="updateDecisionFile" />
<property name="messageListener" ref="updateDecisionFileMessageListener" />
<property name="concurrentConsumers" value="1" />
</bean>

<bean class="org.springframework.jms.config.DefaultJmsListenerContainerFactory" id="jmsListenerContainerFactory">
<property name="connectionFactory" ref="cachingConnectionFactory" />
</bean>
<jms:annotation-driven />
</beans>

provider

package com.cloud.cloudmanage.mq.produce;

import java.io.Serializable;

import javax.annotation.Resource;
import javax.jms.Destination;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.jms.core.JmsTemplate;
import org.springframework.stereotype.Component;

@Component("updateDecisionFileProduce")
public class UpdateDecisionFileProduce {

@Autowired(required = false)
@Resource(name = "jmsTemplatePubSub")
private JmsTemplate jmsTemplate;

public JmsTemplate getJmsTemplate() {
return jmsTemplate;
}

public void setJmsTemplate(JmsTemplate jmsTemplate) {
this.jmsTemplate = jmsTemplate;
}

@Autowired(required = false)
@Resource(name="updateDecisionFile")
private Destination notifyQueue;

public void send(final Serializable ob) {
sendMessage(ob, notifyQueue);
}

/**
* 使用jmsTemplate最简便的封装convertAndSend()发送Map类型的消息.
*/
private void sendMessage(Serializable msg, Destination destination) {
jmsTemplate.convertAndSend(destination, msg);
}

}

订阅者代码：

package com.cloud.welkin.engine.mq.consumer;

import javax.jms.Message;
import javax.jms.MessageListener;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;

@Component("updateDecisionFileMessageListener")
public class UpdateDecisionFileMessageListener implements MessageListener {

private static Logger logger = LoggerFactory.getLogger(UpdateDecisionFileMessageListener.class);

@Override
public void onMessage(Message message) {

try {
//todo  在这里写逻辑
} catch (Exception e) {
logger.error("{}",e);
}

}

}

总结：

spring JmsTemplate 整合消息队列，不管是发布订阅或者点对点，其实程序中的生产者、消费者（订阅者）代码并无太大区别，区别的是程序配置。