5. MessageProducer
实例拥有两个消息生产者, 消息生产者都是POJO, 实现见附件.
Xml代码
<!-- POJO which send Message uses Spring JmsTemplate -->
<bean id="topicMessageProducer" class="com.andyao.activemq.TopicMessageProducer">
<property name="template" ref="jmsTemplate" />
<property name="destination" ref="TOPIC" />
</bean>
<bean id="queueMessageProducer" class="com.andyao.activemq.QueuMessageProducer">
<property name="template" ref="jmsTemplate" />
<property name="destination" ref="QUEUE" />
</bean>
<!-- POJO which send Message uses Spring JmsTemplate -->
<bean id="topicMessageProducer" class="com.andyao.
activemq.TopicMessageProducer">
<property name="template" ref="jmsTemplate" />
<property name="destination" ref="TOPIC" />
</bean>
<bean id="queueMessageProducer" class="com.andyao.activemq.QueuMessageProducer">
<property name="template" ref="jmsTemplate" />
<property name="destination" ref="QUEUE" />
</bean>
6. MessageConsumer
TOPIC通道有两个消息消费者, QUEUE有一个消息消费者
Xml代码
<!-- Message Driven POJO (MDP) -->
<!-- consumer1 for topic a -->
<bean id="topicConsumerA" class="com.andyao.activemq.TopicConsumerA" />
<!-- consumer2 for topic a -->
<bean id="topicConsumerB" class="com.andyao.activemq.TopicConsumerB" />
<!-- consumer for queue -->
<bean id="queueConsumer" class="com.andyao.activemq.QueueConsumer" />
<!-- Message Driven POJO (MDP) -->
<!-- consumer1 for topic a -->
<bean id="topicConsumerA" class="com.andyao.activemq.TopicConsumerA" />
<!-- consumer2 for topic a -->
<bean id="topicConsumerB" class="com.andyao.activemq.TopicConsumerB" />
<!-- consumer for queue -->
<bean id="queueConsumer" class="com.andyao.activemq.QueueConsumer" />
7. MessageListener
每一个消息消费者都对应一个MessageListener
Xml代码
<bean id="topicListenerA" class="org.springframework.jms.listener.adapter.MessageListenerAdapter">
<constructor-arg ref="topicConsumerA" />
<!-- may be other method -->
<property name="defaultListenerMethod" value="receive" />
<!-- custom MessageConverter define -->
<property name="messageConverter" ref="defaultMessageConverter" />
</bean>
<bean id="topicListenerB" class="org.springframework.jms.listener.adapter.MessageListenerAdapter">
<constructor-arg ref="topicConsumerB" />
<!-- may be other method -->
<property name="defaultListenerMethod" value="receive" />
<!-- custom MessageConverter define -->
<property name="messageConverter" ref="defaultMessageConverter" />
</bean>
<bean id="queueListener" class="org.springframework.jms.listener.adapter.MessageListenerAdapter">
<constructor-arg ref="queueConsumer" />
<!-- may be other method -->
<property name="defaultListenerMethod" value="receive" />
<!-- custom MessageConverter define -->
<property name="messageConverter" ref="defaultMessageConverter" />
</bean>
<bean id="topicListenerA" class="org.springframework.jms.listener.adapter.MessageListenerAdapter">
<constructor-arg ref="topicConsumerA" />
<!-- may be other method -->
<property name="defaultListenerMethod" value="receive" />
<!-- custom MessageConverter define -->
<property name="messageConverter" ref="defaultMessageConverter" />
</bean>
<bean id="topicListenerB" class="org.springframework.jms.listener.adapter.MessageListenerAdapter">
<constructor-arg ref="topicConsumerB" />
<!-- may be other method -->
<property name="defaultListenerMethod" value="receive" />
<!-- custom MessageConverter define -->
<property name="messageConverter" ref="defaultMessageConverter" />
</bean>
<bean id="queueListener" class="org.springframework.jms.listener.adapter.MessageListenerAdapter">
<constructor-arg ref="queueConsumer" />
<!-- may be other method -->
<property name="defaultListenerMethod" value="receive" />
<!-- custom MessageConverter define -->
<property name="messageConverter" ref="defaultMessageConverter" />
</bean>
8. MessageListenerContainer
有几个MessageListener既有几个MessageListenerContainer
Xml代码
<bean id="topicListenerContainerA" class="org.springframework.jms.listener.DefaultMessageListenerContainer">
<property name="connectionFactory" ref="jmsConnectionFactory" />
<property name="destination" ref="TOPIC" />
<property name="messageListener" ref="topicListenerA" />
</bean>
<bean id="topicListenerContainerB" class="org.springframework.jms.listener.DefaultMessageListenerContainer">
<property name="connectionFactory" ref="jmsConnectionFactory" />
<property name="destination" ref="TOPIC" />
<property name="messageListener" ref="topicListenerB" />
</bean>
<bean id="queueListenerContainer" class="org.springframework.jms.listener.DefaultMessageListenerContainer">
<property name="connectionFactory" ref="jmsConnectionFactory" />
<property name="destination" ref="QUEUE" />
<property name="messageListener" ref="queueListener" />
</bean>
<bean id="topicListenerContainerA" class="org.springframework.jms.listener.DefaultMessageListenerContainer">
<property name="connectionFactory" ref="jmsConnectionFactory" />
<property name="destination" ref="TOPIC" />
<property name="messageListener" ref="topicListenerA" />
</bean>
<bean id="topicListenerContainerB" class="org.springframework.jms.listener.DefaultMessageListenerContainer">
<property name="connectionFactory" ref="jmsConnectionFactory" />
<property name="destination" ref="TOPIC" />
<property name="messageListener" ref="topicListenerB" />
</bean>
<bean id="queueListenerContainer" class="org.springframework.jms.listener.DefaultMessageListenerContainer">
<property name="connectionFactory" ref="jmsConnectionFactory" />
<property name="destination" ref="QUEUE" />
<property name="messageListener" ref="queueListener" />
</bean>
Summary
写spring配置文件的时候, 要把MessageProducer, MessageConsumer,MessageListener,MessageListenerContainer几个地方弄清楚:
可以有一个或者多个消息生产者向同一个destination发送消息.
queue类型的只能有一个消息消费者.
topic类型的可以有多个消息消费者.
每个消费者对应一个MessageListener和一个MessageListenerContainer.
