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。