Spring整合ActiveMQ实现简单的消息队列

Spring整合ActiveMQ实现简单的消息队列

JMS简介

JMS(Java Message Service)，Java消息服务。主要用于在生产者和消费者之间进行消息传送，生产者负责生产消息，消费者负责接收处理消息。在实际的业务中，生产者生成消息，发送消息，消息会保存到ActiveMQ队列中，对应的消费者会接收消息，完成特定的业务逻辑。消息的传递模型有两种，一种是点对点，一个生产者对应一个消费者；另一种是发布订阅模式，一个生产者对应多个消费者，Java应用和ActiveMQ之间使用JMS传送消息。

Spring整合ActiveMQ

引入依赖

maven依赖如下

	<dependency>
	    <groupId>org.apache.activemq</groupId>
	    <artifactId>activemq-all</artifactId>
	    <version>5.14.5</version>
	</dependency>	
	<dependency>
	    <groupId>javax.annotation</groupId>
	    <artifactId>jsr250-api</artifactId>
	    <version>1.0</version>
	</dependency>
    	<dependency>  
            <groupId>org.springframework</groupId>  
            <artifactId>spring-messaging</artifactId>  
            <version>${spring.version}</version>  
    	</dependency>
    	<dependency>  
            <groupId>org.springframework</groupId>  
            <artifactId>spring-jms</artifactId>  
            <version>${spring.version}</version>  
    	</dependency>
	<dependency>
	    <groupId>org.apache.xbean</groupId>
	    <artifactId>xbean-spring</artifactId>
	    <version>4.5</version>
	</dependency>

Spring中配置ActiveMQ

完整配置文件为：

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
        xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p"
        xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:tx="http://www.springframework.org/schema/tx"
        xmlns:aop="http://www.springframework.org/schema/aop" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xmlns:jms="http://www.springframework.org/schema/jms" xmlns:amq="http://activemq.apache.org/schema/core"
        xsi:schemaLocation="http://www.springframework.org/schema/beans  
      http://www.springframework.org/schema/beans/spring-beans-4.0.xsd  
      http://www.springframework.org/schema/context  
      http://www.springframework.org/schema/context/spring-context-4.0.xsd  
      http://www.springframework.org/schema/mvc  
      http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
      http://www.springframework.org/schema/tx  
      http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
      http://www.springframework.org/schema/aop  
      http://www.springframework.org/schema/aop/spring-aop-4.0.xsd
      http://www.springframework.org/schema/jms  
      http://www.springframework.org/schema/jms/spring-jms-4.0.xsd
      http://activemq.apache.org/schema/core
      http://activemq.apache.org/schema/core/activemq-core-5.14.5.xsd">
      
      <!--activemq连接工厂 -->
      <amq:connectionFactory id="activemqConnectionFactory" brokerURL="tcp://127.0.0.1:61616" userName="admin" password="admin"></amq:connectionFactory>
      
      <!--spring连接工厂，管理activemq连接工厂 -->
      <bean id="connectionFactory" class="org.springframework.jms.connection.CachingConnectionFactory">
      	<!--管理对象，对应activemq连接工厂  -->
      	<property name="targetConnectionFactory" ref="activemqConnectionFactory"></property>
      	<!--session缓存数量  -->
      	<property name="sessionCacheSize" value="100"/>
      </bean>
      
      <!--定义消息队列  -->
      <bean id="tttQueueDestination" class="org.apache.activemq.command.ActiveMQQueue">
     	<!--消息队列名称  -->
      	<constructor-arg>
      		<value>ttt.queue</value>
      	</constructor-arg>
      </bean>
      
      <bean id="tttTopicDestination" class="org.apache.activemq.command.ActiveMQTopic">
      	<!--订阅主题名称  -->
      	<constructor-arg>
      		<value>ttt.topic</value>
      	</constructor-arg>
      </bean>
      
      <!--消息生产者  -->
      <!--队列类型JmsTemplate  -->
      <bean id="jmsQueueTemplate" class="org.springframework.jms.core.JmsTemplate">
      	<property name="connectionFactory" ref="connectionFactory"/>
      	<property name="defaultDestination" ref="tttQueueDestination"/>
      	<property name="receiveTimeout" value="10000"/>
      	<!--非pub/sub（发布/订阅）模式，即队列模式 -->
      	<property name="pubSubDomain" value="false"/>
      </bean>
      
      <!--Topic类型JmsTemplate  -->
      <bean id="jmsTopicTemplate" class="org.springframework.jms.core.JmsTemplate">
      	<property name="connectionFactory" ref="connectionFactory"/>
      	<property name="defaultDestination" ref="tttTopicDestination"/>
      	<property name="receiveTimeout" value="10000"/>
      	<!--pub/sub（发布/订阅）模式 -->
      	<property name="pubSubDomain" value="true"/>      
      </bean>
      
      <!--消息消费者-->
      
      <jms:listener-container destination-type="queue" container-type="default" connection-factory="connectionFactory" acknowledge="auto">
      	<!--队列监听器  -->
      	<jms:listener destination="ttt.queue" ref="queueListener"/>
      </jms:listener-container>
      
      <jms:listener-container destination-type="topic" container-type="default" connection-factory="connectionFactory" acknowledge="auto">
      	<!--Topic监听器  -->
      	<jms:listener destination="ttt.topic" ref="topicListener"/>
      </jms:listener-container>
</beans>

发送消息

发送Queue消息

收到发送Queue的请求，创建队列消息发送对象，设置消息业务处理逻辑bean、数据，发送消息

	@Override
	public void sendQueueMessage() {
		Random r = new Random();
		Map<String, Object> map = new HashMap<String, Object>();
		map.put("message" + r.nextInt(100), r.nextInt(10000));
		MessageSender sender = new MessageSender("asyncProcessor.message");
		sender.sendMessage(map);
	}

队列消息发送对象

public class MessageSender implements Serializable {

	/**
	 * 
	 */
	private static final long serialVersionUID = -7611739730866180422L;

	private String bean;

	public MessageSender(String bean) {
		this.bean = bean;
	}

	public String getBean() {
		return bean;
	}

	public void sendMessage(Destination destination, Map<String, Object> map) {
		MessageHelper.sendMessage(destination, map, getBean());
	}

	public void sendMessage(Map<String, Object> map) {
		MessageHelper.sendMessage(map, getBean());
	}

}

调用jmsTemplate发送队列消息

@Component
public class MessageHelper implements Serializable, InitializingBean {

	/**
	 * 
	 */
	private static final long serialVersionUID = 522520461829363235L;

	@Autowired
	private JmsTemplate jmsQueueTemplate;

	private static JmsTemplate jmsTemplateProxy;

	public JmsTemplate getJmsTemplate() {
		return jmsQueueTemplate;
	}

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

	public static void sendMessage(Destination destination, final Map<String, Object> map, String processor) {
		jmsTemplateProxy.send(destination, new MessageCreator() {

			@Override
			public Message createMessage(Session session) throws JMSException {
				MapMessage message = session.createMapMessage();
				message.setString("processor", processor);
				message.setObject("data", map);
				message.setJMSDestination(destination);
				return message;
			}
		});
	}

	public static void sendMessage(Map<String, Object> map, String processor) {
		jmsTemplateProxy.send(new MessageCreator() {

			@Override
			public Message createMessage(Session session) throws JMSException {
				MapMessage message = session.createMapMessage();
				message.setObject("processor", processor);
				message.setObject("data", map);
				return message;
			}
		});
	}

	@Override
	public void afterPropertiesSet() throws Exception {

		jmsTemplateProxy = this.jmsQueueTemplate;
	}

	public static JmsTemplate getJmsTemplateProxy() {
		return jmsTemplateProxy;
	}

	public static void setJmsTemplateProxy(JmsTemplate jmsTemplateProxy) {
		MessageHelper.jmsTemplateProxy = jmsTemplateProxy;
	}
}

发送Topic消息

收到发送Topic的请求，创建Topic消息发送对象，设置消息业务处理逻辑bean、数据，发送消息

@Override
	public void sendTopicMessage() {
		Random r = new Random();
		Map<String, Object> map = new HashMap<String, Object>();
		map.put("topic" + r.nextInt(100), r.nextInt(10000));
		TopicSender sender = new TopicSender("asyncProcessor.topic");
		sender.sendTopic(map);
	}

Topic消息发送对象类

public class TopicSender implements Serializable {

	/**
	 * 
	 */
	private static final long serialVersionUID = -2422605328103788546L;

	private String processor;

	public TopicSender(String processor) {
		this.processor = processor;
	}

	public String getProcessor() {
		return processor;
	}

	public void setProcessor(String processor) {
		this.processor = processor;
	}

	public void sendTopic(Destination destination, Map<String, Object> map) {
		TopicHelper.send(destination, map, getProcessor());
	}

	public void sendTopic(Map<String, Object> map) {
		TopicHelper.send(map, getProcessor());
	}
}

调用jmsTemplate发送Topic消息

@Component
public class TopicHelper implements Serializable, InitializingBean {

	/**
	 * 
	 */
	private static final long serialVersionUID = 2255365346654153127L;

	@Autowired
	private JmsTemplate jmsTopicTemplate;

	private static JmsTemplate jmsTopicTemplateProxy;

	public static JmsTemplate getJmsTemplateProxy() {
		return jmsTopicTemplateProxy;
	}

	public static void send(Destination destination, final Map<String, Object> map, final String processor) {
		jmsTopicTemplateProxy.send(destination, new MessageCreator() {

			@Override
			public Message createMessage(Session session) throws JMSException {
				MapMessage message = session.createMapMessage();
				message.setString("processor", processor);
				message.setObject("data", map);
				return message;
			}
		});
	}

	public static void send(final Map<String, Object> map, final String processor) {
		jmsTopicTemplateProxy.send(new MessageCreator() {

			@Override
			public Message createMessage(Session session) throws JMSException {
				MapMessage message = session.createMapMessage();
				message.setString("processor", processor);
				message.setObject("data", map);
				return message;
			}
		});
	}

	public JmsTemplate getJmsTopicTemplate() {
		return jmsTopicTemplate;
	}

	public void setJmsTopicTemplate(JmsTemplate jmsTopicTemplate) {
		this.jmsTopicTemplate = jmsTopicTemplate;
	}

	@Override
	public void afterPropertiesSet() throws Exception {
		jmsTopicTemplateProxy = getJmsTopicTemplate();
	}
}

监听消息

监听队列消息

配置监听

      <jms:listener-container destination-type="queue" container-type="default" connection-factory="connectionFactory" acknowledge="auto">
      	<!--队列监听器  -->
      	<jms:listener destination="ttt.queue" ref="queueListener"/>
      </jms:listener-container>

监听实现

@Component
public class QueueListener implements MessageListener {

	private static final Logger log = LoggerFactory.getLogger(MessageListener.class);

	@SuppressWarnings("unchecked")
	@Override
	public void onMessage(Message message) {
		MapMessage msg = (MapMessage) message;
		try {
			String processorName = msg.getString("processor");
			Map<String, Object> param = (Map<String, Object>) msg.getObject("data");
			IAsyncProcessor processor = (IAsyncProcessor) Context.getApplicationContext().getBean(processorName);
			processor.process(param);
		} catch (JMSException e) {

			log.error("QueueListener on message error|", e);
		}
	}

}

监听Topic消息

配置监听

      <jms:listener-container destination-type="topic" container-type="default" connection-factory="connectionFactory" acknowledge="auto">
      	<!--Topic监听器  -->
      	<jms:listener destination="ttt.topic" ref="topicListener"/>
      </jms:listener-container>

监听实现

@Component
public class TopicListener implements MessageListener {

	private static final Logger log = LoggerFactory.getLogger(MessageListener.class);

	@SuppressWarnings("unchecked")
	@Override
	public void onMessage(Message message) {
		MapMessage msg = (MapMessage) message;
		try {
			String processorName = msg.getString("processor");
			Map<String, Object> param = (Map<String, Object>) msg.getObject("data");
			IAsyncProcessor processor = (IAsyncProcessor) Context.getApplicationContext().getBean(processorName);
			processor.process(param);
		} catch (JMSException e) {

			log.error("TopicListener on message error|", e);
		}
	}

}

业务处理

业务逻辑处理bean实现

 接口

public interface IAsyncProcessor {

	/**
	 * 逻辑处理
	 * 
	 * @param map
	 */
	public void process(Map<String, Object> map);
}

实现

@Named("asyncProcessor.message")
public class MessageAsyncProcessor implements IAsyncProcessor {

	@Override
	public void process(Map<String, Object> map) {
		for (Entry<String, Object> e : map.entrySet()) {
			System.out.println("message:" + e.getKey() + "," + e.getValue());
		}

	}

}

@Named("asyncProcessor.topic")
public class TopicAsyncProcessor implements IAsyncProcessor {

	@Override
	public void process(Map<String, Object> map) {
		for (Entry<String, Object> e : map.entrySet()) {
			System.out.println("topic:" + e.getKey() + "," + e.getValue());
		}
	}

}

获取业务逻辑处理bean的context代码

@Component
public class Context implements ApplicationContextAware {

	private static ApplicationContext context;

	@Override
	public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
		context = applicationContext;
	}

	public static ApplicationContext getApplicationContext() {
		return context;
	}

}

碰到问题

 引入Activemq-all新版本jar包后，activemq中的Spring部分和Spring重复，会导致spring启动报错，只需要包activemq中的spring部分删除即可以正常运行。

（完）。