activeMQ，spring的jmstemplate简单例子

最新推荐文章于 2021-02-13 18:28:07 发布

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本文介绍如何使用ActiveMQ实现消息队列的应用案例。通过Maven引入ActiveMQ依赖，并利用Spring框架进行生产者与消费者的配置及消息传递。具体步骤包括配置连接工厂、消息目的地、消息模板等。

1.使用的是maven的结构，导入activeMQ的包

<dependency> <groupId>org.apache.activemq</groupId> <artifactId>activemq-core</artifactId> <version>5.5.0</version> </dependency>

2.创建“生产者”

①xml配置文件

<bean id="connectionFactory" class="org.apache.activemq.ActiveMQConnectionFactory"> <property name="brokerURL" value="tcp://localhost:61616" /> </bean>  <bean id="rantzDestination" class="org.apache.activemq.command.ActiveMQQueue"> <constructor-arg index="0" value="rantz.marketing.queue"></constructor-arg> </bean>     <bean id="jmsTemplate" class="org.springframework.jms.core.JmsTemplate"> <property name="connectionFactory" ref="connectionFactory" /> </bean> <bean id="marketingGateway" class="com.jms.service.RantzMarketingGatewayImpl"> <property name="jmsTemplate" ref="jmsTemplate" /> <property name="destination" ref="rantzDestination" /> </bean>

②java代码

主类SpringMain

public static void main(String[] args) { /*开始加载spring配置文件*/ ApplicationContext context = new ClassPathXmlApplicationContext("classpath:applicationContext.xml"); IRantzMarketingGateway rantzMarketingGateway= (RantzMarketingGatewayImpl) context.getBean("marketingGateway"); rantzMarketingGateway.sendMotoristInfo(); System.out.println("Start ..."); }

消息发送类RantzMarketingGatewayImpl

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; public class RantzMarketingGatewayImpl implements IRantzMarketingGateway { private JmsTemplate jmsTemplate; private Destination destination; public JmsTemplate getJmsTemplate() { return jmsTemplate; } public void setJmsTemplate(JmsTemplate jmsTemplate) { this.jmsTemplate = jmsTemplate; } public Destination getDestination() { return destination; } public void setDestination(Destination destination) { this.destination = destination; } public void sendMotoristInfo(){ jmsTemplate.send( destination, new MessageCreator(){ public Message createMessage(Session session) throws JMSException { return session.createTextMessage("这是一个测试"); } } ); } }

3.创建“消费者”

①xml配置文件

<bean id="connectionFactory" class="org.apache.activemq.ActiveMQConnectionFactory"> <property name="brokerURL" value="tcp://localhost:61616" /> </bean>  <bean id="rantzDestination" class="org.apache.activemq.command.ActiveMQQueue"> <constructor-arg index="0" value="rantz.marketing.queue"></constructor-arg> </bean>     <bean id="jmsTemplate" class="org.springframework.jms.core.JmsTemplate"> <property name="connectionFactory" ref="connectionFactory" /> <property name="defaultDestination" ref="rantzDestination" /> </bean> <bean id="marketingGateway" class="com.huateng.jms.service.MarketingReceiverGatewayImpl"> <property name="jmsTemplate" ref="jmsTemplate" /> </bean>

②java代码

主类SpringMain

public static void main(String[] args) { /*开始加载spring配置文件*/ ApplicationContext context = new ClassPathXmlApplicationContext("classpath:applicationContext.xml"); MarketingReceiverGatewayImpl rantzMarketingGateway= (MarketingReceiverGatewayImpl) context.getBean("marketingGateway"); System.out.println("Receive Start ..."); try { rantzMarketingGateway.receiveMotorist(); } catch (Exception e) { e.printStackTrace(); } }

消息发送类MarketingReceiverGatewayImpl

import javax.jms.TextMessage; import org.springframework.jms.core.JmsTemplate; public class MarketingReceiverGatewayImpl { private JmsTemplate jmsTemplate; public JmsTemplate getJmsTemplate() { return jmsTemplate; } public void setJmsTemplate(JmsTemplate jmsTemplate) { this.jmsTemplate = jmsTemplate; } public MarketingReceiverGatewayImpl() { } public void receiveMotorist() throws Exception{ TextMessage message = (TextMessage)jmsTemplate.receive(); System.out.println("reviced msg is:" + message.getText()); } }

4.启动activeQM

在下载的activeQM包中的bin目录中，可以找到一个用于启动activeMQ的脚本。unix用户使用activemq；windows用户使用activemq.bat

5.先运行"生产者"，再运行"消费者"

6.结果

Start ...

Receive Start ...

reviced msg is:这是一个测试