spring boot:rabbitmq用topic模式发送接收消息(spring boot 2.4.4)

一，安装rabbitmq:

      参见：

https://blog.imgtouch.com/index.php/2023/05/27/fedora30-linux-an-zhuang-rabbitmq-3-8-14/

说明：刘宏缔的架构森林是一个专注架构的博客，

网站：https://blog.imgtouch.com
本文: https://blog.imgtouch.com/index.php/2023/05/27/spring-boot-rabbitmq-yong-topic-mo-shi-fa-song-jie-shou/

         对应的源码可以访问这里获取： https://github.com/liuhongdi/

说明：作者:刘宏缔 邮箱: 371125307@qq.com

 

二，演示项目的相关信息：

1，地址:

https://github.com/liuhongdi/rabbit

2,功能说明：演示了用topic模式订阅消息

3,项目结构:如图:

 

 

三，配置文件说明

1,pom.xml

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-amqp</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>

2,application.yml

#rabbitmq
spring:
  rabbitmq:
    host: 127.0.0.1
    port: 5672
    username: root
    password: 123456

 

四，java代码说明

1,config/TopicConfig.java

@Configuration
public class TopicConfig {
    public static final String TOPIC_QUEUE1 = "topic.queue1";
    public static final String TOPIC_QUEUE2 = "topic.queue2";
    public static final String TOPIC_EXCHANGE = "topic.exchange";

    @Bean
    public Queue topicQueue1() {
        return new Queue(TOPIC_QUEUE1);
    }
    @Bean
    public Queue topicQueue2() {
        return new Queue(TOPIC_QUEUE2);
    }
    @Bean
    public TopicExchange topicExchange() {
        return new TopicExchange(TOPIC_EXCHANGE);
    }
    @Bean
    public Binding topicBinding1() {
        return BindingBuilder.bind(topicQueue1()).to(topicExchange()).with("topic.messge");
    }
    @Bean
    public Binding topicBinding2() {
        //#表示0个或多个word
        return BindingBuilder.bind(topicQueue2()).to(topicExchange()).with("topic.#");
    }
}

 

2,controller/TopicController.java

@RestController
@RequestMapping("/topic")
public class TopicController {
    @Autowired
    private TopicSender topicSender;

    @GetMapping("/send")
    public String topicTest() {
        topicSender.sendTopicQueue();
        return "消息已发送";
    }
}

 

3,pojo/Goods.java

public class Goods implements Serializable {


    private static final long serialVersionUID = 6629065135155452917L;

    private Long goodsId;
    private String goodsName;
    private Double goodsPrice;

    public Long getGoodsId() {
        return goodsId;
    }

    public void setGoodsId(Long goodsId) {
        this.goodsId = goodsId;
    }

    public String getGoodsName() {
        return goodsName;
    }

    public void setGoodsName(String goodsName) {
        this.goodsName = goodsName;
    }

    public Double getGoodsPrice() {
        return goodsPrice;
    }

    public void setGoodsPrice(Double goodsPrice) {
        this.goodsPrice = goodsPrice;
    }

    public Goods(Long goodsId, String goodsName, Double goodsPrice) {
        this.goodsId = goodsId;
        this.goodsName = goodsName;
        this.goodsPrice = goodsPrice;
    }

    public Goods() {
    }

    @Override
    public String toString() {
        return "Goods{" +
                "goodsId=" + goodsId +
                ", goodsName='" + goodsName + '\'' +
                ", goodsPrice=" + goodsPrice +
                '}';
    }
}

 

4,receiver/TopicReceiver.java

@Component
public class TopicReceiver {
    @RabbitListener(queues = TopicConfig.TOPIC_QUEUE1)
    public void receiveTopic1(Goods goods) {
        System.out.println("receiveTopic1收到消息：" + goods.toString());
    }

    @RabbitListener(queues = TopicConfig.TOPIC_QUEUE2)
    public void receiveTopic2(Goods goods) {
        System.out.println("receiveTopic2收到消息：" + goods.toString());
    }
}

5,sender/TopicSender.java

@Component
public class TopicSender {
    //private static final Logger log = LoggerFactory.getLogger(TopicSender.class);
    @Autowired
    private AmqpTemplate amqpTemplate;

    public void sendTopicQueue() {
        Goods goods1 = new Goods(1L,"测试商品1",98.6);
        Goods goods2 = new Goods(2L,"测试商品2",100.0);
        System.out.println("TopicSender已发送消息");
        // 第一个参数：TopicExchange名字
        // 第二个参数：Route-Key
        // 第三个参数：要发送的内容
        this.amqpTemplate.convertAndSend(TopicConfig.TOPIC_EXCHANGE, "topic.messge", goods1 );
        this.amqpTemplate.convertAndSend(TopicConfig.TOPIC_EXCHANGE, "topic.messge2", goods2);
    }
}

 

五，测试效果

1，访问:

http://127.0.0.1:8080/topic/send

返回:

消息已发送

查看控制台:

TopicSender已发送消息
receiveTopic2收到消息：Goods{goodsId=1, goodsName='测试商品1', goodsPrice=98.6}
receiveTopic2收到消息：Goods{goodsId=2, goodsName='测试商品2', goodsPrice=100.0}
receiveTopic1收到消息：Goods{goodsId=1, goodsName='测试商品1', goodsPrice=98.6}

 

六，查看spring boot版本:

  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::                (v2.4.4)