首页 > 编程 > Java > 正文

详解spring boot整合JMS(ActiveMQ实现)

2019-11-26 11:03:32
字体:
来源:转载
供稿:网友

本文介绍了spring boot整合JMS(ActiveMQ实现),分享给大家,也给自己留个学习笔记。

一、安装ActiveMQ

具体的安装步骤,请参考我的另一篇文章://www.VeVB.COm/article/127117.htm

二、新建spring boot工程,并加入JMS(ActiveMQ)依赖

三、工程结构

pom依赖如下:

<?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"   xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">   <modelVersion>4.0.0</modelVersion>    <groupId>com.chhliu.springboot.jms</groupId>   <artifactId>springboot-jms</artifactId>   <version>0.0.1-SNAPSHOT</version>   <packaging>jar</packaging>    <name>springboot-jms</name>   <description>Demo project for Spring Boot Jms</description>    <parent>     <groupId>org.springframework.boot</groupId>     <artifactId>spring-boot-starter-parent</artifactId>     <version>1.4.3.RELEASE</version>     <relativePath/> <!-- lookup parent from repository -->   </parent>    <properties>     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>     <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>     <java.version>1.7</java.version>   </properties>    <dependencies>     <dependency>       <groupId>org.springframework.boot</groupId>       <artifactId>spring-boot-starter-activemq</artifactId>     </dependency>      <dependency>       <groupId>org.springframework.boot</groupId>       <artifactId>spring-boot-starter-test</artifactId>       <scope>test</scope>     </dependency>   </dependencies>    <build>     <plugins>       <plugin>         <groupId>org.springframework.boot</groupId>         <artifactId>spring-boot-maven-plugin</artifactId>       </plugin>     </plugins>   </build> </project> 

四、修改application.properties配置文件

## URL of the ActiveMQ broker. Auto-generated by default. For instance `tcp://localhost:61616` # failover:(tcp://localhost:61616,tcp://localhost:61617) # tcp://localhost:61616 spring.activemq.broker-url=tcp://localhost:61616 spring.activemq.in-memory=true spring.activemq.pool.enabled=false //如果此处设置为true,需要加如下的依赖包,否则会自动配置失败,报JmsMessagingTemplate注入失败 
<dependency>       <groupId>org.apache.activemq</groupId>       <artifactId>activemq-pool</artifactId>       <!-- <version>5.7.0</version> -->     </dependency> 

五、消息生产者

package com.chhliu.springboot.jms;  import javax.jms.Destination;  import org.springframework.beans.factory.annotation.Autowired; import org.springframework.jms.core.JmsMessagingTemplate; import org.springframework.stereotype.Service;  @Service("producer") public class Producer {   @Autowired // 也可以注入JmsTemplate,JmsMessagingTemplate对JmsTemplate进行了封装   private JmsMessagingTemplate jmsTemplate;   // 发送消息,destination是发送到的队列,message是待发送的消息   public void sendMessage(Destination destination, final String message){     jmsTemplate.convertAndSend(destination, message);   } } 

六、消息消费者

package com.chhliu.springboot.jms;  import org.springframework.jms.annotation.JmsListener; import org.springframework.stereotype.Component;  @Component public class Consumer {     // 使用JmsListener配置消费者监听的队列,其中text是接收到的消息   @JmsListener(destination = "mytest.queue")   public void receiveQueue(String text) {     System.out.println("Consumer收到的报文为:"+text);   } } 

消费者2的代码同上,注意,消息消费者的类上必须加上@Component,或者是@Service,这样的话,消息消费者类就会被委派给Listener类,原理类似于使用SessionAwareMessageListener以及MessageListenerAdapter来实现消息驱动POJO

七、测试

package com.chhliu.springboot.jms;  import javax.jms.Destination;  import org.apache.activemq.command.ActiveMQQueue; import org.junit.Test; import org.junit.runner.RunWith; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.boot.test.context.SpringBootTest; import org.springframework.test.context.junit4.SpringRunner;  @RunWith(SpringRunner.class) @SpringBootTest public class SpringbootJmsApplicationTests {      @Autowired   private Producer producer;      @Test   public void contextLoads() throws InterruptedException {     Destination destination = new ActiveMQQueue("mytest.queue");          for(int i=0; i<100; i++){       producer.sendMessage(destination, "myname is chhliu!!!");     }   }  } 

测试结果如下:

Consumer2收到的报文为:myname is chhliu!!! Consumer收到的报文为:myname is chhliu!!! Consumer2收到的报文为:myname is chhliu!!! Consumer收到的报文为:myname is chhliu!!! Consumer2收到的报文为:myname is chhliu!!! Consumer收到的报文为:myname is chhliu!!! Consumer2收到的报文为:myname is chhliu!!! Consumer收到的报文为:myname is chhliu!!! Consumer2收到的报文为:myname is chhliu!!! Consumer收到的报文为:myname is chhliu!!! Consumer2收到的报文为:myname is chhliu!!! Consumer收到的报文为:myname is chhliu!!! Consumer2收到的报文为:myname is chhliu!!! 

经过上面的几个步骤,spring boot和Jms就基本上整合完成了,是不是使用起来很方便了!

八、实现双向队列

1、下面首先来对Consumer2这个消费者来进行下改造,代码如下:

package com.chhliu.springboot.jms;  import org.springframework.jms.annotation.JmsListener; import org.springframework.messaging.handler.annotation.SendTo; import org.springframework.stereotype.Component;  @Component public class Consumer2 {    @JmsListener(destination = "mytest.queue")   @SendTo("out.queue")   public String receiveQueue(String text) {     System.out.println("Consumer2收到的报文为:"+text);     return "return message"+text;   } } 

从上面的代码可以看出,我们在receiveQueue方法上面多加了一个注解@SendTo("out.queue"),该注解的意思是将return回的值,再发送的"out.queue"队列中,下面我们再来跑一下前面的测试,在监控页面中,我们发现,"out.queue"队列中已经有内容了,如下:

进入Browse界面观看:

最后看下收到的具体信息:

我们发现,该队列中的消息,就是我们返回的值!

九、对Producer进行改造

通过上面的示例,我们现在对Producer进行改造,使其既能生产报文,又能消费队列中的报文,代码如下:

package com.chhliu.springboot.jms;  import javax.jms.Destination;  import org.springframework.beans.factory.annotation.Autowired; import org.springframework.jms.annotation.JmsListener; import org.springframework.jms.core.JmsMessagingTemplate; import org.springframework.stereotype.Service;  @Service("producer") public class Producer {   @Autowired   private JmsMessagingTemplate jmsTemplate;      public void sendMessage(Destination destination, final String message){     jmsTemplate.convertAndSend(destination, message);   }      @JmsListener(destination="out.queue")   public void consumerMessage(String text){     System.out.println("从out.queue队列收到的回复报文为:"+text);   } } 

测试结果如下:

从out.queue队列收到的回复报文为:return messagemyname is chhliu!!! Consumer收到的报文为:myname is chhliu!!! Consumer2收到的报文为:myname is chhliu!!! 从out.queue队列收到的回复报文为:return messagemyname is chhliu!!! Consumer收到的报文为:myname is chhliu!!! Consumer2收到的报文为:myname is chhliu!!! 从out.queue队列收到的回复报文为:return messagemyname is chhliu!!! Consumer收到的报文为:myname is chhliu!!! Consumer2收到的报文为:myname is chhliu!!! 从out.queue队列收到的回复报文为:return messagemyname is chhliu!!! 

以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持武林网。

发表评论 共有条评论
用户名: 密码:
验证码: 匿名发表