SpringBoot整合ActiveMQ订阅和主题（Topic）

1.创建Maven项目，在pom.xml中导入相应jar包

<?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>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.1.5.RELEASE</version>
        <relativePath/>
    </parent>

    <groupId>org.example</groupId>
    <artifactId>activemq_springboot_demo</artifactId>
    <version>1.0-SNAPSHOT</version>


    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <maven.compiler.source>1.8</maven.compiler.source>
        <maven.compiler.target>1.8</maven.compiler.target>
    </properties>

    <dependencies>
        <!--spring-boot-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
        </dependency>
        <!--activemq-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-activemq</artifactId>
            <version>2.1.5.RELEASE</version>
        </dependency>
    </dependencies>
    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>
</project>

2.在resources目录下创建application.yml

server:
  port: 8888

spring:
  activemq:
    broker-url: tcp://192.168.231.128:61616  #自己的MQ地址
    user: admin
    password: admin
  jms:
    pub-sub-domain:true   #默认是：false = 队列(Queue) true = Topic

#定义自己的队列名称
myTopic: boot-activemq-Topic

3.创建主程序启动类

/**
 * @author 主启动类
 */
@SpringBootApplication
@EnableScheduling  //开启定时任务
public class MainApp_Produce {

    public static void main(String[] args) {
        SpringApplication.run(MainApp_Produce.class,args);
    }
}

4.创建配置类读取application.yml文件中的Topic

/**
 * @author 读取配置的Topic
 */
@Component
@EnableJms   //开启Jms
public class ConfigBean {

    @Value("${myTopic}")
    private String myTopic;

    @Bean //<bean id="" class=""/>
    public Topic topic()
    {
        return new ActiveMQTopic(myTopic);
    }
}

5.创建队列的生产者

@Component
public class Topic_Produce {
    @Autowired
    private JmsMessagingTemplate jmsMessagingTemplate;

    @Autowired
    private Topic topic;

    @Scheduled(fixedDelay = 3000)
    public void produceTopic()
    {
        jmsMessagingTemplate.convertAndSend(topic,"主题消息"+ UUID.randomUUID().toString().substring(0,6));
    }
}

6.创建队列的消费者

@Component
public class Topic_Consumer {
    @JmsListener(destination = "${myTopic}") //开启自动监听
    public void receive(TextMessage textMessage) throws JMSException
    {
        System.out.println("消费者收到订阅的主题"+ textMessage.getText());
    }
}