前言
在前面我们讲生产者和消费者的时候,代码编写的都比较基础,开发起来费时费力,下面我们将来介绍如何整合spring来简化开发;
整合配置
pom增加依赖:
<!-- activemq连接池 -->
<dependency>
<groupId>org.apache.activemq</groupId>
<artifactId>activemq-pool</artifactId>
<version>5.15.10</version>
</dependency>
<!-- spring支持jms的包 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jms</artifactId>
<version>5.2.1.RELEASE</version>
</dependency>
<!--spring相关依赖包-->
<dependency>
<groupId>org.apache.xbean</groupId>
<artifactId>xbean-spring</artifactId>
<version>4.15</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>5.1.5.RELEASE</version>
</dependency>
<!-- Spring核心依赖 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>4.3.23.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>4.3.23.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>4.3.23.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>4.3.23.RELEASE</version>
</dependency>
新建Spring整合activeMQ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"
xsi:schemaLocation="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.xsd">
<!--配置包自动扫描 -->
<context:component-scan base-package="com.chaytech.activemq"/>
<!--配置connection-->
<bean id="connectionFactory" class="org.apache.activemq.pool.PooledConnectionFactory" destroy-method="stop">
<property name="connectionFactory">
<!--正真可以生产Connection的ConnectionFactory,由对应的JMS服务商提供-->
<bean class="org.apache.activemq.spring.ActiveMQConnectionFactory">
<!--配置activeMQ服务地址-->
<property name="brokerURL" value="tcp://192.168.0.166:61616"/>
</bean>
</property>
<!--最大连接数-->
<property name="maxConnections" value="100"/>
</bean>
<!-- 这个是队列目的地,点对点的Queue -->
<bean id="destinationQueue" class="org.apache.activemq.command.ActiveMQQueue">
<!-- 通过构造注入Queue名 -->
<constructor-arg index="0" value="spring-active-queue"/>
</bean>
<!-- 这个是队列目的地, 发布订阅的主题Topic-->
<bean id="destinationTopic" class="org.apache.activemq.command.ActiveMQTopic">
<constructor-arg index="0" value="spring-active-topic"/>
</bean>
<!-- Spring提供的JMS工具类,他可以进行消息发送,接收等 -->
<bean id="jmsTemplate" class="org.springframework.jms.core.JmsTemplate">
<!-- 传入连接工厂 -->
<property name="connectionFactory" ref="connectionFactory"/>
<!-- 传入目的地 -->
<property name="defaultDestination" ref="destinationQueue"/>
<!-- 消息自动转换器 -->
<property name="messageConverter">
<bean class="org.springframework.jms.support.converter.SimpleMessageConverter"/>
</property>
</bean>
</beans>
队列生产者和消费者
package com.chaytech.activemq.spring;
import org.apache.xbean.spring.context.ClassPathXmlApplicationContext;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.ApplicationContext;
import org.springframework.jms.core.JmsTemplate;
import org.springframework.stereotype.Service;
/**
* activeMQ整合spring-生产者
*
* @author Chency
* @email [email protected]
* @Date 2020/03/24 21:41
*/
@Service
public class SpringJmsProducer {
@Autowired
private JmsTemplate jmsTemplate;
public static void main(String[] args) {
ApplicationContext applicationContext = new ClassPathXmlApplicationContext("spring-activemq.xml");
SpringJmsProducer springJmsProducer = (SpringJmsProducer)applicationContext.getBean("springJmsProducer");
springJmsProducer.jmsTemplate.send((session) -> {
return session.createTextMessage("spring整合activeMQ。。");
});
}
}
package com.chaytech.activemq.spring;
import org.apache.xbean.spring.context.ClassPathXmlApplicationContext;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.ApplicationContext;
import org.springframework.jms.core.JmsTemplate;
import org.springframework.stereotype.Service;
/**
* activeMQ整合spring-消费者
*
* @author Chency
* @email [email protected]
* @Date 2020/03/24 21:41
*/
@Service
public class SpringJmsConsumer {
@Autowired
private JmsTemplate jmsTemplate;
public static void main(String[] args) {
ApplicationContext applicationContext = new ClassPathXmlApplicationContext("spring-activemq.xml");
SpringJmsConsumer springJmsConsumer = (SpringJmsConsumer)applicationContext.getBean("springJmsConsumer");
String message = (String) springJmsConsumer.jmsTemplate.receiveAndConvert();
System.out.println("spring整合activeMQ消费者:" + message);
}
}
主题生产者和消费者
主题生产者和消费者代码不用改变,只需修改配置文件即可,修改如下:
<!-- 这个是队列目的地, 发布订阅的主题Topic-->
<bean id="destinationTopic" class="org.apache.activemq.command.ActiveMQTopic">
<constructor-arg index="0" value="spring-active-topic"/>
</bean>
<!-- Spring提供的JMS工具类,他可以进行消息发送,接收等 -->
<bean id="jmsTemplate" class="org.springframework.jms.core.JmsTemplate">
<!-- 传入连接工厂 -->
<property name="connectionFactory" ref="connectionFactory"/>
<!-- 传入目的地 -->
<!--<property name="defaultDestination" ref="destinationQueue"/>-->
<property name="defaultDestination" ref="destinationTopic"/>
<!-- 消息自动转换器 -->
<property name="messageConverter">
<bean class="org.springframework.jms.support.converter.SimpleMessageConverter"/>
</property>
</bean>
增加主题目的地,并将jmsTemplate中的defaultDestination指向我们新增的destinationTopic
消费者监听器
前面我们消费者在消费消息的时候用的阻塞方式,下面将演示如何使用监听器的方式来消费消息,一旦配置了监听器,就不需要启动消费者了,生产者在发送消息的时候,监听器会自动消费
首先我们要先自定义一个消息监听器:
package com.chaytech.activemq.spring;
import org.springframework.stereotype.Component;
import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.MessageListener;
import javax.jms.TextMessage;
/**
* 自定义消息监听器
*
* @author Chency
* @email [email protected]
* @Date 2020/03/24 22:05
*/
@Component
public class CustomerMessageListener implements MessageListener {
@Override
public void onMessage(Message message) {
if(message != null && message instanceof TextMessage){
TextMessage textMessage = (TextMessage) message;
try {
System.out.println("自定义消息监听器监听到的消息:" + textMessage.getText());
} catch (JMSException e) {
e.printStackTrace();
}
}
}
}
修改配置文件,增加监听器配置:
<!--配置消费者监听器-->
<bean id="messageListenerContainer" class="org.springframework.jms.listener.DefaultMessageListenerContainer">
<property name="connectionFactory" ref="connectionFactory"/>
<property name="destination" ref="destinationTopic"/>
<property name="messageListener" ref="customerMessageListener"/>
</bean>