通过spring开发ActiveMQ简单应用

使用spring的支持类开发JMS程序可以简化代码，确保开发质量。以下是使用ActiveMQ作为JMS实现的示例。

首先需要确保如下类库，这里使用maven的pom：

 

<!-- Code highlighting produced by Actipro CodeHighlighter (freeware) http://www.CodeHighlighter.com/ --><dependency> <groupId>org.springframework</groupId> <artifactId>spring-jms</artifactId> <version>2.5.6</version> </dependency> <dependency> <groupId>org.apache.xbean</groupId> <artifactId>xbean-spring</artifactId> <version>3.5</version> </dependency> <dependency> <groupId>org.apache.activemq</groupId> <artifactId>activemq-core</artifactId> <version>5.2.0</version> </dependency>

 

编写消息生产者的代码：

 

<!-- Code highlighting produced by Actipro CodeHighlighter (freeware) http://www.CodeHighlighter.com/ -->@Component public class MyMessageProducer { @Resource(name = "Queue") private Destination destination; @Autowired private JmsTemplate jmsTemplate; public void sendMessage(final String message) { this.jmsTemplate.send(this.destination, new MessageCreator() { @Override public Message createMessage(Session session) throws JMSException { TextMessage textMessage = session.createTextMessage(); textMessage.setText(message); return textMessage; } }); } }

有关生产者部分spring的配置文件内容：

 

<!-- Code highlighting produced by Actipro CodeHighlighter (freeware) http://www.CodeHighlighter.com/ --><?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:amq="http://activemq.apache.org/schema/core" xmlns:lang="http://www.springframework.org/schema/lang" xmlns:context="http://www.springframework.org/schema/context" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:util="http://www.springframework.org/schema/util" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-2.5.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-2.5.xsd http://www.springframework.org/schema/lang http://www.springframework.org/schema/lang/spring-lang-2.5.xsd http://activemq.apache.org/schema/core http://activemq.apache.org/schema/core/activemq-core.xsd"> <context:annotation-config /> <context:component-scan base-package="activemq.demo.spring" /> <bean id="jmsFactory" class="org.apache.activemq.ActiveMQConnectionFactory"> <property name="brokerURL"> <value>tcp://localhost:61616</value> </property> </bean> <bean id="myJmsTemplate" class="org.springframework.jms.core.JmsTemplate"> <property name="connectionFactory" ref="jmsFactory" /> </bean> <amq:queue name="Queue" physicalName="example.D" />

这样，执行发送代码，在activemq的admin界面中可以观察到发送成功的消息。

异步接收的代码：

 

<!-- Code highlighting produced by Actipro CodeHighlighter (freeware) http://www.CodeHighlighter.com/ -->public class MyMessageConsumer implements MessageListener { @Override public void onMessage(Message message) { TextMessage textMessage = (TextMessage) message; try { System.out.println(">>>>>>>"+textMessage.getText()); // throw new RuntimeException(">>>>>>>>>>test error"); } catch (JMSException e) { throw new RuntimeException(e); } } }

有关异步接收代码的spring配置：

 

<!-- Code highlighting produced by Actipro CodeHighlighter (freeware) http://www.CodeHighlighter.com/ --> <bean id="myMessageConsumer" class="activemq.demo.spring.MyMessageConsumer" /> <bean id="jmsContainer" class="org.springframework.jms.listener.DefaultMessageListenerContainer"> <property name="connectionFactory" ref="jmsFactory" /> <property name="destination" ref="Queue" /> <property name="messageListener" ref="myMessageConsumer" /> <property name="sessionTransacted" value="true"/> </bean>

这样，就实现了基于spring和activemq的JMS的同步发送和异步提交。如果将MyMessageConsumer的抛出异常部分取消注释，则接收信息后，spring捕获到该异常并自动回滚事务。通过activemq的admin界面会监控到消息依然留在队列中。