前言
在前面我們講生產者和消費者的時候,代碼編寫的都比較基礎,開發起來費時費力,下面我們將來介紹如何整合spring來簡化開發;
整合配置
pom增加依賴:
<!-- activemq連接池 -->
<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相關依賴包-->
<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核心依賴 -->
<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">
<!--配置包自動掃描 -->
<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">
<!--正真可以生產Connection的ConnectionFactory,由對應的JMS服務商提供-->
<bean class="org.apache.activemq.spring.ActiveMQConnectionFactory">
<!--配置activeMQ服務地址-->
<property name="brokerURL" value="tcp://192.168.0.166:61616"/>
</bean>
</property>
<!--最大連接數-->
<property name="maxConnections" value="100"/>
</bean>
<!-- 這個是隊列目的地,點對點的Queue -->
<bean id="destinationQueue" class="org.apache.activemq.command.ActiveMQQueue">
<!-- 通過構造注入Queue名 -->
<constructor-arg index="0" value="spring-active-queue"/>
</bean>
<!-- 這個是隊列目的地, 發佈訂閱的主題Topic-->
<bean id="destinationTopic" class="org.apache.activemq.command.ActiveMQTopic">
<constructor-arg index="0" value="spring-active-topic"/>
</bean>
<!-- Spring提供的JMS工具類,他可以進行消息發送,接收等 -->
<bean id="jmsTemplate" class="org.springframework.jms.core.JmsTemplate">
<!-- 傳入連接工廠 -->
<property name="connectionFactory" ref="connectionFactory"/>
<!-- 傳入目的地 -->
<property name="defaultDestination" ref="destinationQueue"/>
<!-- 消息自動轉換器 -->
<property name="messageConverter">
<bean class="org.springframework.jms.support.converter.SimpleMessageConverter"/>
</property>
</bean>
</beans>
隊列生產者和消費者
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-生產者
*
* @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-消費者
*
* @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消費者:" + message);
}
}
主題生產者和消費者
主題生產者和消費者代碼不用改變,只需修改配置文件即可,修改如下:
<!-- 這個是隊列目的地, 發佈訂閱的主題Topic-->
<bean id="destinationTopic" class="org.apache.activemq.command.ActiveMQTopic">
<constructor-arg index="0" value="spring-active-topic"/>
</bean>
<!-- Spring提供的JMS工具類,他可以進行消息發送,接收等 -->
<bean id="jmsTemplate" class="org.springframework.jms.core.JmsTemplate">
<!-- 傳入連接工廠 -->
<property name="connectionFactory" ref="connectionFactory"/>
<!-- 傳入目的地 -->
<!--<property name="defaultDestination" ref="destinationQueue"/>-->
<property name="defaultDestination" ref="destinationTopic"/>
<!-- 消息自動轉換器 -->
<property name="messageConverter">
<bean class="org.springframework.jms.support.converter.SimpleMessageConverter"/>
</property>
</bean>
增加主題目的地,並將jmsTemplate中的defaultDestination指向我們新增的destinationTopic
消費者監聽器
前面我們消費者在消費消息的時候用的阻塞方式,下面將演示如何使用監聽器的方式來消費消息,一旦配置了監聽器,就不需要啓動消費者了,生產者在發送消息的時候,監聽器會自動消費
首先我們要先自定義一個消息監聽器:
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;
/**
* 自定義消息監聽器
*
* @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("自定義消息監聽器監聽到的消息:" + textMessage.getText());
} catch (JMSException e) {
e.printStackTrace();
}
}
}
}
修改配置文件,增加監聽器配置:
<!--配置消費者監聽器-->
<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>