spring整合activemq

ActiveMQ 是一个非常强大的开源消息总线，并且极其简单的设计可以轻松应用于项目。以下示例仅用了必要的XML配置，以进行消息交换。

在消息发送/接收端，ActiveMQ 连接工厂须被创建，我们先创建双方公用的工厂。

公共配置 spring-common.xml

<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans"       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">    <!-- ActiveMQ 连接工厂 -->    <bean id="activeMQConnectionFactory" class="org.apache.activemq.ActiveMQConnectionFactory">        <property name="brokerURL" value="tcp://localhost:61616"/>    </bean>    <!-- 连接工厂定义 -->    <bean id="connectionFactory" class="org.springframework.jms.connection.CachingConnectionFactory">        <property name="targetConnectionFactory" ref="activeMQConnectionFactory"/>    </bean></beans>

发送方 spring-sender.xml：

<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans"       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">    <import resource="spring-common.xml"/>    <!-- 默认的目的地队列定义 -->    <bean id="activeMQQueue" class="org.apache.activemq.command.ActiveMQQueue">        <constructor-arg index="0" value="queue-test"/>    </bean>    <!-- JmsTemplate 定义 -->    <bean id="jmsTemplate" class="org.springframework.jms.core.JmsTemplate">        <property name="connectionFactory" ref="connectionFactory"/>        <property name="defaultDestination" ref="activeMQQueue"/>    </bean>    <!-- 消息发送者定义 -->    <bean id="messageSender" class="com.caobug.demo.springjmsactivemq.MessageSender">        <constructor-arg index="0" ref="jmsTemplate"/>    </bean></beans>

我们需要创建一个类用于消息发送

package com.caobug.demo.springjmsactivemq;import org.springframework.jms.core.JmsTemplate;import java.util.Map;/** * Created by caobug on 16/6/23. * * @author caobug */public class MessageSender {    private final JmsTemplate jmsTemplate;    public MessageSender(JmsTemplate jmsTemplate) {        this.jmsTemplate = jmsTemplate;    }    public void sender(final Map<String, Object> map) {        jmsTemplate.convertAndSend(map);    }}

接收方 spring-receiver.xml

<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans"       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">    <import resource="spring-common.xml"/>    <!-- 消息接收者定义 -->    <bean id="messageReceiver" class="com.caobug.demo.springjmsactivemq.MessageReceiver"/>    <bean class="org.springframework.jms.listener.SimpleMessageListenerContainer">        <property name="connectionFactory" ref="connectionFactory"/>        <property name="destinationName" value="queue-test"/>        <property name="messageListener" ref="messageReceiver"/>    </bean></beans>

接收方 spring-receiver.xml

<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans"       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">    <import resource="spring-common.xml"/>    <!-- 消息接收者定义 -->    <bean id="messageReceiver" class="com.caobug.demo.springjmsactivemq.MessageReceiver"/>    <bean class="org.springframework.jms.listener.SimpleMessageListenerContainer">        <property name="connectionFactory" ref="connectionFactory"/>        <property name="destinationName" value="queue-test"/>        <property name="messageListener" ref="messageReceiver"/>    </bean></beans>作者：caobug链接：http://www.jianshu.com/p/28e1ece2491e來源：简书著作权归作者所有。商业转载请联系作者获得授权，非商业转载请注明出处。

我们还需要创建类用来接收消息：

package com.caobug.demo.springjmsactivemq;import javax.jms.JMSException;import javax.jms.MapMessage;import javax.jms.Message;import javax.jms.MessageListener;import java.util.Enumeration;/** * Created by caobug on 16/6/23. * * @author caobug */public class MessageReceiver implements MessageListener {    @Override    public void onMessage(Message message) {        if (message instanceof MapMessage) {            final MapMessage mapMessage = (MapMessage) message;            try {                Enumeration mapNames = mapMessage.getMapNames();                while (mapNames.hasMoreElements()) {                    String name = (String) mapNames.nextElement();                    Object value = mapMessage.getObject(name);                    System.out.println("value = " + value);                }            } catch (JMSException e) {                e.printStackTrace();            }        }        System.out.println("已接收消息");    }}作者：caobug链接：http://www.jianshu.com/p/28e1ece2491e來源：简书著作权归作者所有。商业转载请联系作者获得授权，非商业转载请注明出处。

到此为止我们的代码写完了。以下为测试发送方和消费方，我们需要执行以下三个类的JUNIT测试方法，顺序不分先后。值得注意的是，由于默认配置为点对点，因此消费者不可能会同时接受同一个消息。
测试：发送方

package com.caobug.demo.springjmsactivemq;import org.junit.Test;import org.springframework.context.ApplicationContext;import org.springframework.context.support.ClassPathXmlApplicationContext;import java.util.HashMap;import java.util.Map;import java.util.concurrent.TimeUnit;/** * Created by caobug on 16/6/23. * * @author caobug */public class MessageSenderTest {    @Test    public void sender() throws Exception {        ApplicationContext ctx = new ClassPathXmlApplicationContext("spring-sender.xml");        MessageSender messageSender = ctx.getBean("messageSender", MessageSender.class);        for (int i = 0; i < 148; i++) {            Map<String, Object> content = new HashMap<>();            content.put("name", "caobug");            content.put("age", i);            content.put("will", "say hello");            messageSender.sender(content);            TimeUnit.SECONDS.sleep(1);        }    }}

测试：接收方 A

package com.caobug.demo.springjmsactivemq;import org.junit.Test;import org.springframework.context.support.ClassPathXmlApplicationContext;import java.util.concurrent.TimeUnit;/** * Created by caobug on 16/6/23. * * @author caobug */public class MessageReceiverATest {    @Test    public void receiverA() throws Exception {        new ClassPathXmlApplicationContext("spring-receiver.xml");        TimeUnit.DAYS.sleep(Integer.MAX_VALUE);    }}

测试：接收方 B

package com.caobug.demo.springjmsactivemq;import org.junit.Test;import org.springframework.context.support.ClassPathXmlApplicationContext;import java.util.concurrent.TimeUnit;/** * Created by caobug on 16/6/23. * * @author caobug */public class MessageReceiverBTest {    @Test    public void receiverA() throws Exception {        new ClassPathXmlApplicationContext("spring-receiver.xml");        TimeUnit.DAYS.sleep(Integer.MAX_VALUE);    }}

搞定！以上示例编译环境为JDK7，JAR依赖（gradle config）如下

dependencies {    compile group: 'org.springframework', name: 'spring-jms', version: '4.2.5.RELEASE'    compile group: 'org.apache.activemq', name: 'activemq-core', version: '5.7.0'    testCompile group: 'junit', name: 'junit', version: '4.12'}

转载自http://www.jianshu.com/p/28e1ece2491e