Java Message Service(JMS)是 SUN 提出的旨在统一各种 MOM 系统接口的规范,它包含点对点(Point to Point,PTP)和发布/订阅(Publish/Subscribe,pub/sub)两种消息模型,提供可靠消息传输、事务和消息过滤等机制。
JMS 支持两种截然不同的消息传送模型:PTP(即点对点模型)和Pub/Sub(即发布/订阅模型),分别称作:PTP Domain 和Pub/Sub Domain.
PTP(使用Queue 即队列目标) 消息从一个生产者传送至一个消费者.在此传送模型中,目标是一个队列。
每条消息只能发送至、并由一个消费者成功使用。如果没有已经向队列目标注册的消费者,队列将保留它收到的消息,并在某个消费者向该队列进行注册时将消息传送给该消费者.
Pub/Sub(使用 Topic即主题目标)消息从一个生产者传送至任意数量的消费者。在此传送模型中,目标是一个主题。每个消息可以发送至任意数量的订阅消费者。主题目标也支持持久订阅的概念。持久订阅表示消费者已向主题目标进行注册,
但在消息传送时此消费者可以处于非活动状态。当此消费者再次处于活动状态时,它将接收此信息。如果没有已经向主题目标注册的消费者,主题不保留其接收到的消息,除非有非活动消费者注册了持久订阅。
贴下发送和接收消息的xml配置,完整的代码从附件下载
发送消息xml配置
<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:amq="http://activemq.apache.org/schema/core"
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://activemq.apache.org/schema/core
http://activemq.apache.org/schema/core/activemq-core-5.4.2.xsd" default-autowire="byName">
<!-- 连接ActiveMQ -->
<amq:connectionFactory id="defaultFactory" brokerURL="tcp://127.0.0.1:61616"></amq:connectionFactory>
<bean id="cachingConnectionFactory" class="org.springframework.jms.connection.CachingConnectionFactory">
<property name="targetConnectionFactory" ref="defaultFactory"></property>
<property name="sessionCacheSize" value="10"></property>
</bean>
<bean id="jmsTemplate" class="org.springframework.jms.core.JmsTemplate">
<property name="connectionFactory" ref="cachingConnectionFactory"></property>
<property name="explicitQosEnabled" value="true" /><!-- 使 deliveryMode, priority, timeToLive设置生效-->
<property name="deliveryPersistent" value="false" />
</bean>
<!-- 队列发送消息 -->
<bean id="ptpMessageProducer" class="com.jms.producer.PtpMessageProducer">
<property name="jmsTemplate" ref="jmsTemplate"></property>
<property name="queue" ref="ptpQueue"></property>
</bean>
<!-- 主题发送消息 -->
<bean id="publisherMessageProducer" class="com.jms.producer.PublisherMessageProducer">
<property name="jmsTemplate" ref="jmsTemplate"></property>
<property name="topic" ref="topicQueue"></property>
</bean>
<amq:queue name="ptpQueue" physicalName="ptp.queue.message"></amq:queue>
<amq:topic name="topicQueue" physicalName="topic.queue.message"></amq:topic>
</beans>
接收消息xml配置
<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:amq="http://activemq.apache.org/schema/core"
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://activemq.apache.org/schema/core
http://activemq.apache.org/schema/core/activemq-core-5.4.2.xsd" default-autowire="byName">
<description>jms 配置</description>
<amq:connectionFactory id="defaultFactory" brokerURL="tcp://127.0.0.1:61616"></amq:connectionFactory>
<bean id="cacheConnectionFactory" class="org.springframework.jms.connection.CachingConnectionFactory">
<property name="targetConnectionFactory" ref="defaultFactory"></property>
<property name="sessionCacheSize" value="10"></property>
</bean>
<!--异步调用消息 -->
<bean class="org.springframework.jms.listener.DefaultMessageListenerContainer">
<property name="connectionFactory" ref="cacheConnectionFactory"></property>
<property name="destination" ref="ptpQueue"></property>
<!--<property name="destination" ref="topicQueue"></property>-->
<property name="messageListener" ref="jmsReciveListener"></property>
<property name="sessionAcknowledgeModeName" value="AUTO_ACKNOWLEDGE"/>
</bean>
<!-- 主题 -->
<amq:topic id="topicQueue" physicalName="topic.queue.message"></amq:topic>
<!-- 队列 -->
<amq:queue id="ptpQueue" physicalName="ptp.queue.message"></amq:queue>
<bean id="jmsReciveListener" class="com.jms.receive.JmsReceiveListener"></bean>
</beans>
private Destination queue ;
private final ExecutorService threadPool = Executors.newFixedThreadPool(2);
public void sendMessage(final Object obj){
Runnable task=new Runnable(){
@Override
public void run() {
try {
jmsTemplate.send(queue, new MessageCreator(){
@Override
public Message createMessage(Session session) throws JMSException {
ObjectMessage message = session.createObjectMessage();
message.setObject(obj);
return message;
}
});
}catch(Exception e){
logger.error("异常",e);
}
}
};
threadPool.execute(task);
}
public Destination getQueue() {
return queue;
}
public void setQueue(Destination queue) {
this.queue = queue;
}