Spring与ActiveMQ(JMS)的整合说明

ActiveMQ是完全支持JMS1.1和J2EE 1.4规范的 JMS Provider实现,也是Apache Geronimo默认的JMS provider。

　　ActiveMQ的网站：http://www.activemq.org

　　使用ActiveMQ后，可以在普通Web服务器使用JMS功能，不依赖于特定的应用服务器。

1. ActiveMQ 4.1-incubator-SNAPSHOT 与Spring 2.0 集成

ActiveMQ4.1 响应Spring 2.0号召，支持了引入XML Schema namespace的简单配置语法，简化了配置的语句。

1.1 引入ActiveMQ的XSD

在ApplicationContext.xml(Spring的配置文件)中引入ActiveMQ的XML Scheam 配置文件),如下:
(说明:由于ActiveMQ的那个XSD有部分错误,因此使用的是自行修改过的XSD,见”配置ClassPath中的scheam”小节)

  
<beans xmlns="http://www.springframework.org/schema/beans"
   xmlns:amq="http://activemq.org/config/1.0"
   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
   xsi:schemaLocation="http://www.springframework.org/schema/beans
  http://www.springframework.org/schema/beans/spring-beans.xsd
  http://activemq.org/config/1.0
   http://people.apache.org/repository/org.apache.activemq/xsds/activemq-core-4.1-incubator-SNAPSHOT.xsd">
 </beans>
<beans xmlns="http://www.springframework.org/schema/beans"
  xmlns:amq="http://activemq.org/config/1.0"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://www.springframework.org/schema/beans
  http://www.springframework.org/schema/beans/spring-beans.xsd
  http://activemq.org/config/1.0
  http://people.apache.org/repository/org.apache.activemq/xsds/activemq-core-4.1-incubator-SNAPSHOT.xsd">
</beans>

1.2 配置ClassPath中的schema

在ClassPath 下面建立META-INF\spring.schemas 内容如下

  
http\://people.apache.org/repository/org.apache.activemq/xsds/activemq-core-4.1-incubator-SNAPSHOT.xsd=/activemq-core-4.1-incubator-SNAPSHOT.xsd
这个spring.schemas是spring自定义scheam的配置文件
请注意"http:\://"部分写法
http\://people.apache.org/repository/org.apache.activemq/xsds/activemq-core-4.1-incubator-SNAPSHOT.xsd=/activemq-core-4.1-incubator-SNAPSHOT.xsd
这个spring.schemas是spring自定义scheam的配置文件
请注意"http:\://"部分写法

1.3 配置ActiveMQ embedded ActiveMQ Broker

  
<!-- lets create an embedded ActiveMQ Broker -->
 <amq :broker useJmx="false" persistent="false"></amq>
 <amq :transportConnectors>
   <amq :transportConnector uri="tcp://localhost:0"/>
 </amq>
<!-- lets create an embedded ActiveMQ Broker -->
<amq :broker useJmx="false" persistent="false"></amq>
<amq :transportConnectors>
  <amq :transportConnector uri="tcp://localhost:0"/>
</amq>

当spring初始化时候,ActiveMQ embedded Broker 就会启动了

1.4 配置BookStore MDP

配置ConnectionFactory,由于是embedded 所以URL为:vm://localhost

  
<!--  ActiveMQ connectionFactory to use  -->
 <amq :connectionFactory id="jmsConnectionFactory" brokerURL="vm://localhost"/>
<!--  ActiveMQ connectionFactory to use  -->
<amq :connectionFactory id="jmsConnectionFactory" brokerURL="vm://localhost"/>

配置Queue名字

  
<!-- ActiveMQ destinations to use -->
 <amq :queue name="destination" physicalName="org.apache.activemq.spring.Test.spring.embedded"/>
<!-- ActiveMQ destinations to use -->
<amq :queue name="destination" physicalName="org.apache.activemq.spring.Test.spring.embedded"/>

配置JmsTemplate

  
<!--  Spring JmsTemplate config -->
 <bean id="jmsTemplate" class="org.springframework.jms.core.JmsTemplate">
 <property name="connectionFactory">
     <!-- lets wrap in a pool to avoid creating a connection per send -->
     <bean class="org.springframework.jms.connection.SingleConnectionFactory">
 <property name="targetConnectionFactory">
         <ref local="jmsConnectionFactory"/>
       </property>
     </bean>
   </property>
   <!-- custom MessageConverter define -->
 <property name="messageConverter" ref="orderMessageConverter"/>
 </bean>
<!--  Spring JmsTemplate config -->
<bean id="jmsTemplate" class="org.springframework.jms.core.JmsTemplate">
<property name="connectionFactory">
    <!-- lets wrap in a pool to avoid creating a connection per send -->
    <bean class="org.springframework.jms.connection.SingleConnectionFactory">
<property name="targetConnectionFactory">
        <ref local="jmsConnectionFactory"/>
      </property>
    </bean>
  </property>
  <!-- custom MessageConverter define -->
<property name="messageConverter" ref="orderMessageConverter"/>
</bean>

配置MDP POJO

  
<!-- a sample POJO which uses a Spring JmsTemplate -->
 <bean id="orderMessageProducer" class="org.springside.bookstore.components.activemq.OrderMessageProducer">
 <property name="template">
     <ref bean="jmsTemplate"/>
   </property>
 <property name="destination">
     <ref bean="destination"/>
   </property>
 </bean>
 <!-- this is the Message Driven POJO (MDP) -->
 <!-- define MessageListenerAdapter -->
 <bean id="messageListener" class="org.springframework.jms.listener.adapter.MessageListenerAdapter">
   <constructor -arg>
     <bean class="org.springside.bookstore.components.activemq.OrderMessageConsumer">
 <property name="mailService" ref="mailService"></property>
     </bean>
   </constructor>
   <!-- mey be other method -->
 <property name="defaultListenerMethod" value="sendEmail"/>
   <!-- custom MessageConverter define -->
 <property name="messageConverter" ref="orderMessageConverter"/>
 </bean>
 <!-- and this is the attendant message listener container -->
 <bean id="listenerContainer" class="org.springframework.jms.listener.DefaultMessageListenerContainer">
 <property name="connectionFactory" ref="jmsConnectionFactory"/>
 <property name="destination" ref="destination"/>
 <property name="messageListener" ref="messageListener"/>
 </bean>
<!-- a sample POJO which uses a Spring JmsTemplate -->
<bean id="orderMessageProducer" class="org.springside.bookstore.components.activemq.OrderMessageProducer">
<property name="template">
    <ref bean="jmsTemplate"/>
  </property>
<property name="destination">
    <ref bean="destination"/>
  </property>
</bean>
<!-- this is the Message Driven POJO (MDP) -->
<!-- define MessageListenerAdapter -->
<bean id="messageListener" class="org.springframework.jms.listener.adapter.MessageListenerAdapter">
  <constructor -arg>
    <bean class="org.springside.bookstore.components.activemq.OrderMessageConsumer">
<property name="mailService" ref="mailService"></property>
    </bean>
  </constructor>
  <!-- mey be other method -->
<property name="defaultListenerMethod" value="sendEmail"/>
  <!-- custom MessageConverter define -->
<property name="messageConverter" ref="orderMessageConverter"/>
</bean>
<!-- and this is the attendant message listener container -->
<bean id="listenerContainer" class="org.springframework.jms.listener.DefaultMessageListenerContainer">
<property name="connectionFactory" ref="jmsConnectionFactory"/>
<property name="destination" ref="destination"/>
<property name="messageListener" ref="messageListener"/>
</bean>

补充说明

1. 采用了自定义的MessageConverter,Producer能够直接发送POJO。
2. 使用了Spring的DefaultMessageListenerContainer,MessageListenerAdapter, Consumer　不用实现MessageListener 接口。