Jboss迁移到Tomcat之手记(五)-JMS

简介:

JBoss本身支持JMS(通过JNDI公布),只需要在deploy/jms里配置相应xml文件,把Topic/Queue/ConnectionFactory配好即可,默认Jboss启动会在1099端口监听JMS消息。对应Spring配置是针对消息处理器设置如下:

<?xml version="1.0" encoding="UTF-8"?>
<beans>
<bean id="connectionFactory"        class="org.springframework.jndi.JndiObjectFactoryBean">
                   <property name="jndiName">
                            <value>ConnectionFactory_JNDI_NAME</value>
                   </property>
</bean>  
<bean id="destination" class="org.springframework.jndi.JndiObjectFactoryBean">
                   <property name="jndiName">
                            <value>TOPIC_JNDI_NAME</value>
                   </property>
</bean>
<bean id="jmsTemplate" class="org.springframework.jms.core.JmsTemplate">
        <property name="connectionFactory">
            <ref bean="connectionFactory"/>
        </property>
        <property name="defaultDestination">
            <ref bean="destination"/>
        </property>
        <property name="receiveTimeout">
            <value>3000</value>
        </property>
 </bean>
 
         <bean id="messageListener"
                   class="org.springframework.jms.listener.adapter.MessageListenerAdapter">
                   <constructor-arg>
                            <bean class="com.companya.projectb.*.ImplClass ">
<!—Implement the interface of handleMessage(Object message) -->
                            </bean>
                   </constructor-arg>
         </bean>
 
         <bean id="listenerContainer"
                   class="org.springframework.jms.listener.DefaultMessageListenerContainer">
                   <property name="concurrentConsumers" value="1" />
                   <property name="connectionFactory" ref="connectionFactory" />
                   <property name="destination" ref="destination" />
                   <property name="subscriptionDurable" value="false" />
                   <property name="messageListener" ref="messageListener" />
                   <property name="exposeListenerSession" value="false" />
         </bean>
</beans>
Tomcat本身没有对JMS的支持,所有需要用第三方组件来实现,现在OSS比较流行的是ActiveMQJMSOpenActiveMQApache基金开源项目,支持力度/更新都不错,所以选用ActiveMQhttp://activemq.apache.org )。
ActiveMQ可以作为standalone application运行于JVM,也可以作为web application运行于J2EE容器如Tomcat, Jboss, Jetty等上。这些都是可以从官方网站看帮助文档很简单地下载安装部署。下面的xml配置可以实现Brokerweb application内部嵌入式(embedded broker)运行:
<?xml version="1.0" encoding="UTF-8"?>
<beans
  xmlns="http://www.springframework.org/schema/beans"
  xmlns:amq="http://activemq.apache.org/schema/core"
  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-2.0.xsd
                    http://activemq.apache.org/schema/core
                    http://activemq.apache.org/schema/core/activemq-core.xsd">
 
  <!--  lets create an embedded ActiveMQ Broker -->
  <amq:broker useJmx="false" persistent="false">
    <amq:transportConnectors>
      <amq:transportConnector uri="${ broker.url}" />
    </amq:transportConnectors>
  </amq:broker>
 
   <!--  ActiveMQ destinations to use  physicalName is the name to connect topic/queue -->
  <amq:topic id="destination"  physicalName="${ topic.name}"/>
 
  <!-- JMS ConnectionFactory to use, configuring the embedded broker using XML -->
  <amq:connectionFactory id="jmsFactory" brokerURL="${broker.url}"/>
 
        
  <!-- Spring JMS Template -->
  <bean id="myJmsTemplate" class="org.springframework.jms.core.JmsTemplate">
    <property name="connectionFactory">
      <ref local="jmsFactory" />
    </property>
  </bean>
</beans>
在我的部署过程中,发现ActiveMQ必须是5.x版本以上才支持broker配置标签。而activemq 5.x网上的binary版本是jdk6编译的,所以兼容性必须考虑好。ActiveMQ的依赖jar文件包括geronimo-jms_1.1_spec-1.1.1.jar, geronimo-j2ee-management_1.1_spec-1.0.1.jar,          geronimo-jta_1.0.1B_spec-1.0.1.jar, activemq-core-5.5.1.jar, activemq-web-5.5.1.jar, slf4j-simple-1.6.4.jar, slf4j-api-1.6.4.jar。特别要注意slf4j的版本必须保持兼容。网络上下载的示例里有slf4j-api-1.5.11.jar的,这个跟slf4j-simple-1.6.4.jar版本不兼容。在xml配置中也可以用JNDI方式配置,不过这样需要在context.xml文件里配置Resource
另外网络上很多文档说url配置成tcp://localhost:61616,其实这样的配置只支持本机的消息传递,如果远程主机要连上本地activeMQ,会出现connection refused错误,只需要把localhost改成0.0.0.0即可实现远程连接了。61616activeMQ默认端口,可以配成别的端口。tcp是传输协议,可以支持http, vm等。ActiveMQ还支持failover, multicastpersistence等加强功能。
 
   客户端java代码示例如下(其中的url参数为tcp://hostname:port, topicnamephysicalName)
org.apache.activemq.ActiveMQConnectionFactory factory =
        new org.apache.activemq.ActiveMQConnectionFactory();
factory.setBrokerURL(brokerUrl);
connActiveMQ = factory.createConnection();
connActiveMQ.start();
sessActiveMQ = connActiveMQ.createSession(false, Session.AUTO_ACKNOWLEDGE);
Destination dest = sessActiveMQ.createTopic(topicname);
MessageProducer producer =sessActiveMQ.createProducer(dest);
producer.setDeliveryMode(DeliveryMode.NON_PERSISTENT);
MapMessage message = sessActiveMQ.createMapMessage(); //TextMessage, etc.
message.setObject(key, value);
producer.send(message);
sessActiveMQ.close();
connActiveMQ.stop();

本文转自 dannyy1026 51CTO博客,原文链接:http://blog.51cto.com/dannyyuan/756008

相关文章
|
Java 应用服务中间件
Tomcat迁移weblogic的填坑之旅
Tomcat迁移weblogic的填坑之旅
123 0
|
算法 应用服务中间件 网络安全
|
应用服务中间件 容器
Angular 自动编译部署 Tomcat Jboss
版权声明:本文为博主原创文章,未经博主允许不得转载。 https://blog.
1415 0
|
应用服务中间件 网络安全
|
Java 应用服务中间件 定位技术
|
Web App开发 应用服务中间件
From LOW to PWNED [3] JBoss/Tomcat server-status
http://carnal0wnage.attackresearch.com/2012/04/from-low-to-pwned-3-jbosstomcat-server.
1197 0