springJMS+activeMQ实践
linux上安装activeMQhttp://blog.163.com/yangzhanghui_job/blog/static/17957506220127171173225/
ActiveMQ-5.8.0安装和启动http://chenzhou123520.iteye.com/blog/1915287
在CentOSLinux下部署Activemq5http://sunbean.blog.51cto.com/972509/675529
原文:http://my.oschina.net/wangrikui/blog/471714
运行环境:jdk1.6,javaEE5,spring2.5,activeMQ5.4.3.
一定要注意activeMQ的版本与jdk的兼容性,最新的activeMQ版本估计要在jdk1.7以上才能运行。
先说一下activeMQ的安装:
1、下载:http://activemq.apache.org/download.html选择合适的Windows版本
2、安装
(1)首先配置JAVA环境变量
JAVA_HOME=D:\ProgramFiles\Java\jdk1.5.0
CLASSPAHT=.;%JAVA_HOME%\lib
PATH=%JAVA_HOME%\bin;
(2)直接解压至任意目录(例如:D:\apache-activemq-5.3.0)
3、启动ActiveMQ服务器:直接运行\bin\win32\activemq.bat
当运行成功后,界面显示:[email protected]:8161即说明activemq启动成功。
4、打开ActiveMQ消息管理后台系统http://localhost:8161/admin/
需要依赖的jar包有:spring.jar,activemq-all-5.4.3.jar,commons-logging-api-1.1.jar,commons-io-1.3.2.jar
好了,准备工作做完后,开始上代码,
先看一下,我们最终的Spring配置文件applicationContext.xml的内容,如下所示:
<?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:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:p="http://www.springframework.org/schema/p" xmlns:jee="http://www.springframework.org/schema/jee" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-2.5.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-2.5.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd"> <!-- jms 连接工厂 --> <bean id="jmsFactory" class="org.apache.activemq.ActiveMQConnectionFactory"> <!-- 配置代理的地址,即配置activeMQ的连接URI, 让jms工厂能够连接到activeMQ服务器(将activeMQ暴露给客户端使用, 负责客户端与activeMQ之间的连接通信) --> <property name="brokerURL"> <value>tcp://localhost:61616</value><!-- 一种标准URI地址,意思是说标识一个本地的端口号位61616的TCP连接(其中,"61616"是activeMQ默认的连接端口号) --> </property> </bean> <!-- ActiveMQ连接器将这种简单等级结构的URI模式称为低等级的连接器(low-levelconnectors), 并为这些连接器实现了基本的网络通信协议。低等级连接器URIs使用主题(scheme)标识底层使用的网络协议, 使用路径元素定位网络资源服务(一般为主机名加上端口号),使用查询元素用来确定连接器附加信息。 --> <!-- jms 连接池 --> <!-- <bean id="pooledJmsFactory" class="org.apache.activemq.pool.PooledConnectionFactory"> <property name="connectionFactory"> <ref local="jmsFactory" /> </property> </bean> --> <!-- jms 模板 --> <bean id="jmsTemplate" class="org.springframework.jms.core.JmsTemplate"> <property name="connectionFactory"> <ref local="jmsFactory" /> </property> </bean> <!-- jms Topic --> <bean id="myTopic" class="org.apache.activemq.command.ActiveMQTopic" autowire="constructor"> <constructor-arg value="STOCKS.JAVA" /> </bean> <!-- jms Consumer --> <bean id="javaConsumer" class="org.springframework.jms.listener.DefaultMessageListenerContainer"> <property name="connectionFactory" ref="jmsFactory" /> <property name="destination" ref="myTopic" /> <property name="messageListener" ref="myTextListener" /> </bean> <!-- 消息监听器 --> <bean id="myTextListener" class="demo.TextListener"> </bean> <!-- 消息发布器 --> <bean id="springPublisher" class="demo.SpringPublisher"> <property name="template"> <ref local="jmsTemplate" /> </property> <property name="topic"> <ref local="myTopic" /> </property> </bean> </beans>
接下来,消息生成器代码,实现spring的MessageCreator接口:
package demo; import java.util.Date; import javax.jms.JMSException; import javax.jms.Message; import javax.jms.Session; import javax.jms.TextMessage; import org.springframework.jms.core.MessageCreator; public class MyMessageCreator implements MessageCreator { /** * 消息序号 */ private int msgNo; public MyMessageCreator(int no) { this.msgNo = no; } @Override public Message createMessage(Session session) throws JMSException { TextMessage textMsg = session.createTextMessage(); textMsg.setText(new Date() + "第" + this.msgNo + "条消息发出"); return textMsg; } }
接下来,消息监听器,实现javaEE的规范MessageListener接口即可,因为要注入到spring的DefaultMessageListenerContainer中。此监听器通过监听来自destination(在spring中配置)的消息,一旦有消息就打印出来:
package demo; import javax.jms.JMSException; import javax.jms.Message; import javax.jms.MessageListener; import javax.jms.TextMessage; public class TextListener implements MessageListener { @Override public void onMessage(Message message) { TextMessage msg = null; try { if (message instanceof TextMessage) { msg = (TextMessage) message; System.out.println("Reading message: " + msg.getText()); } else { System.out.println("Message of wrong type: " + message.getClass().getName()); } } catch (JMSException e) { System.out.println("JMSException in onMessage(): " + e.toString()); } catch (Throwable t) { System.out.println("Exception in onMessage():" + t.getMessage()); } } }
下面是消息发布器,通过spring的jms模板,即可轻松的获得与activeMQ的连接与通信,从而获得Connection和Destination,再通过JmsTemplate的send方法,即可发送消息到指定的destination(在spring中配置)中,以供客户端接收:
package demo; import javax.jms.Destination; import org.springframework.jms.core.JmsTemplate; public class SpringPublisher { /** * Jms模板 */ private JmsTemplate template; /** * Topic */ private Destination topic; public JmsTemplate getTemplate() { return template; } public void setTemplate(JmsTemplate template) { this.template = template; } public Destination getTopic() { return topic; } public void setTopic(Destination topic) { this.topic = topic; } /** * Start * * @throws InterruptedException */ public void start() throws InterruptedException { int messageCount = 10; while ((--messageCount) > 0) { sendMessage(messageCount); Thread.sleep(1000); } } /** * 消息发送 */ protected void sendMessage(int msgNO) { this.template.send(this.topic, new MyMessageCreator(msgNO)); } }
至此,基本的jms就已经搭建好了,很简单吧,一个spring上下文配置,一个消息生成器,一个消息发布器,一个监听器,搞定。接下来,编写一个测试类,看运行结果(注意在运行测试类前,一定要先启动activeMQ服务器):
package test; import org.springframework.context.ApplicationContext; import org.springframework.context.support.ClassPathXmlApplicationContext; import demo.SpringPublisher; public class SpringJmsTestMain { /** * @param args */ public static void main(String[] args) throws InterruptedException { ApplicationContext context = new ClassPathXmlApplicationContext( new String[] { "applicationContext.xml" }); SpringPublisher publisher = (SpringPublisher) context .getBean("springPublisher"); publisher.start(); } }
运行结果如下:
Readingmessage:SunJun2819:40:05CST2015第9条消息发出
Readingmessage:SunJun2819:40:06CST2015第8条消息发出
Readingmessage:SunJun2819:40:07CST2015第7条消息发出
Readingmessage:SunJun2819:40:08CST2015第6条消息发出
Readingmessage:SunJun2819:40:09CST2015第5条消息发出
Readingmessage:SunJun2819:40:10CST2015第4条消息发出
Readingmessage:SunJun2819:40:12CST2015第3条消息发出
Readingmessage:SunJun2819:40:13CST2015第2条消息发出
Readingmessage:SunJun2819:40:14CST2015第1条消息发出