• Spring整合Activemq


    一、项目结构

    项目结构如何

    两个模块,一个为消费方,一个为提供方,也可将两个模块合一,配置文件合一。

    二、整合步骤

    一、pom.xml

        <dependencies>
            <dependency>
                <groupId>org.apache.activemq</groupId>
                <artifactId>activemq-all</artifactId>
                <version>5.11.2</version>
            </dependency>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-jms</artifactId>
                <version>5.1.6.RELEASE</version>
            </dependency>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-context</artifactId>
                <version>5.1.6.RELEASE</version>
            </dependency>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-context-support</artifactId>
                <version>5.1.6.RELEASE</version>
            </dependency>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-test</artifactId>
                <version>5.1.6.RELEASE</version>
            </dependency>
            <dependency>
                <groupId>javax.jms</groupId>
                <artifactId>javax.jms-api</artifactId>
                <version>2.0.1</version>
            </dependency>
            <!-- https://mvnrepository.com/artifact/junit/junit -->
            <dependency>
                <groupId>junit</groupId>
                <artifactId>junit</artifactId>
                <version>4.12</version>
                <scope>test</scope>
            </dependency>
        </dependencies>
    

    生产方、消费方一致

    二、Producer模块

    <?xml version="1.0" encoding="UTF-8"?>
    <beans xmlns="http://www.springframework.org/schema/beans"
           xmlns:p="http://www.springframework.org/schema/p"
           xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:amp="http://activemq.apache.org/schema/core"
           xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://activemq.apache.org/schema/core http://activemq.apache.org/schema/core/activemq-core.xsd">
    
    <!--    1.创建连接工厂对象-->
    <!--    <amp:connectionFactory
            id="connectionFactory"
            brokerURL="tcp://47.100.246.223:61616"
            userName="admin"
            password="admin"/>-->
        <bean id="connectionFactory" class="org.apache.activemq.ActiveMQConnectionFactory"
              p:brokerURL="tcp://47.100.246.223:61616" p:userName="admin" p:password="admin"></bean>
        <!--2. Spring Caching 连接工厂(类似数据库线程池的东西,减少连接的创建。) -->
        <!-- 由于jmsTemplate每次发送消息都需要创建连接和创建session了,所以引入这个类似连接池的连接工厂,优化Mq的性能 -->
        <bean id="cachingConnectionFactory" class="org.springframework.jms.connection.CachingConnectionFactory">
            <!-- 目标连接工厂 指向 ActiveMq工厂 -->
            <property name="targetConnectionFactory" ref="connectionFactory" />
            <!-- session缓存的最大个数-->
            <property name="sessionCacheSize" value="10" />
        </bean>
        <!--    3.创建用于点对点发送的JmsTemplate-->
        <bean id="jmsQueueTemplate" class="org.springframework.jms.core.JmsTemplate">
            <property name="connectionFactory" ref="cachingConnectionFactory" />
            <!-- 设置 jmsTemplate 不支持订阅模式,即:只支持queue模式。
             如果项目需要同时支持queue和topic,那么就需要另外注册一个jmsTemplate(把pubSubDomain设为true)-->
            <property name="pubSubDomain" value="false"></property>
        </bean>
    <!--    4.创建用于发布订阅发送的JmsTemplate-->
        <bean id="jmsTopicTemplate" class="org.springframework.jms.core.JmsTemplate">
            <property name="connectionFactory" ref="cachingConnectionFactory" />
            <!-- 设置 jmsTemplate 不支持订阅模式,即:只支持queue模式。
             如果项目需要同时支持queue和topic,那么就需要另外注册一个jmsTemplate(把pubSubDomain设为true)-->
            <property name="pubSubDomain" value="true"></property>
        </bean>
    </beans>
    

    测试代码:

    package com.helius;
    
    import org.junit.Test;
    import org.junit.runner.RunWith;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.beans.factory.annotation.Qualifier;
    import org.springframework.jms.core.JmsTemplate;
    import org.springframework.jms.core.MessageCreator;
    import org.springframework.test.context.ContextConfiguration;
    import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
    
    import javax.jms.JMSException;
    import javax.jms.Message;
    import javax.jms.Session;
    import javax.jms.TextMessage;
    
    /**
     * @Author jcf
     * @Create 2020-01-30-18:14
     */
    @RunWith(SpringJUnit4ClassRunner.class)
    @ContextConfiguration("classpath:applicationContext-producer.xml")
    public class TestProducer {
        //点对点
        @Autowired
        @Qualifier("jmsQueueTemplate")
        private JmsTemplate jmsQueueTemplate;
        //发布订阅模式
        @Autowired
        @Qualifier("jmsTopicTemplate")
        private JmsTemplate jmsTopicTemplate;
    
        @Test
        public void ptpSender() {
            jmsQueueTemplate.send("spring_queue", new MessageCreator() {
                @Override
                public Message createMessage(Session session) throws JMSException {
                    //创建文本消息
                    TextMessage textMessage = session.createTextMessage("spring test message");
                    return textMessage;
                }
            });
            System.out.println("消息发送已完成");
        }
    
        @Test
        public void psSender() {
            jmsTopicTemplate.send("spring_topic", new MessageCreator() {
                @Override
                public Message createMessage(Session session) throws JMSException {
                    //创建文本消息
                    TextMessage textMessage = session.createTextMessage("spring test message_topic");
                    return textMessage;
                }
            });
            System.out.println("消息发送已完成");
        }
    
    }
    

    三、Consumer模块

    1.配置文件

    <?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:jms="http://www.springframework.org/schema/jms"
           xmlns:c="http://www.springframework.org/schema/c"
           xmlns:p="http://www.springframework.org/schema/p"
           xsi:schemaLocation="http://www.springframework.org/schema/jms http://www.springframework.org/schema/jms/spring-jms-4.3.xsd
            http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
            http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd">
        <!--    1.创建连接工厂对象-->
        <bean id="connectionFactory" class="org.apache.activemq.ActiveMQConnectionFactory"
              p:brokerURL="tcp://47.100.246.223:61616" p:userName="admin" p:password="admin"></bean>
        <!--2. Spring Caching 连接工厂(类似数据库线程池的东西,减少连接的创建。) -->
        <!-- 由于jmsTemplate每次发送消息都需要创建连接和创建session了,所以引入这个类似连接池的连接工厂,优化Mq的性能 -->
        <bean id="cachingConnectionFactory" class="org.springframework.jms.connection.CachingConnectionFactory">
            <!-- 目标连接工厂 指向 ActiveMq工厂 -->
            <property name="targetConnectionFactory" ref="connectionFactory"/>
            <!-- session缓存的最大个数-->
            <property name="sessionCacheSize" value="10"/>
        </bean>
        <!--    3.配置消息监听组件扫描-->
        <context:component-scan base-package="com.helius.listener"/>
    <!--    配置监听器(点对点)-->
        <jms:listener-container connection-factory="cachingConnectionFactory" destination-type="queue">
            <jms:listener destination="spring_queue" ref="queueListener"/>
        </jms:listener-container>
    <!--    配置监听器(发布订阅)-->
        <jms:listener-container connection-factory="cachingConnectionFactory" destination-type="topic">
            <jms:listener destination="spring_topic" ref="topicListener"/>
        </jms:listener-container>
    </beans>
    

    2.监听器

    分别监听提供方queue和topic的消息

    @Component
    public class QueueListener implements MessageListener {
        @Override
        public void onMessage(Message message) {
            if (message instanceof TextMessage) {
                TextMessage textMessage = (TextMessage) message;
                try {
                    System.out.println("queue接口消息" + textMessage.getText());
                } catch (JMSException e) {
                    e.printStackTrace();
                }
            }
        }
    }
    
    @Component
    public class TopicListener implements MessageListener {
        @Override
        public void onMessage(Message message) {
            if (message instanceof TextMessage) {
                TextMessage textMessage = (TextMessage) message;
                try {
                    System.out.println("topic接口消息" + textMessage.getText());
                } catch (JMSException e) {
                    e.printStackTrace();
                }
            }
        }
    }
    

    启动消费方

    public class SpringConsumer {
        public static void main(String[] args) throws IOException {
            ClassPathXmlApplicationContext applicationContext = new ClassPathXmlApplicationContext("classpath:applicationContext-consumer.xml");
            applicationContext.start();
            //使程序处于阻塞状态
            System.in.read();
    
        }
    }
    

    三、小结

    测试结果在本机上通过测试,这里不赘述。

    1.JMS命名空间

    spring为了简化JMS的配置,提供了XML命名空间

    需要加上:

    <?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:jms="http://www.springframework.org/schema/jms"
            xsi:schemaLocation="
                http://www.springframework.org/schema/beans https://www.springframework.org/schema/beans/spring-beans.xsd
                http://www.springframework.org/schema/jms https://www.springframework.org/schema/jms/spring-jms.xsd">
    
        <!-- bean definitions here -->
    
    </beans>
    

    2.CachingConnectionFactory

    由于JmsTemplate发送MQ消息时每次都要创建Connection和Session。因此引入Spring提供的CachingConnectionFactory,起到类似于数据库连接池的效果

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  • 原文地址:https://www.cnblogs.com/heliusKing/p/12243548.html
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