RabbitMq(三)：SpringBoot引入RabbitMq

1. springBoot项目下引入amqp starter

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

amqp-starter 会引入如下jar包

[INFO] \- org.springframework.boot:spring-boot-starter-amqp:jar:2.1.5.RELEASE:compile
[INFO]    +- org.springframework:spring-messaging:jar:5.1.7.RELEASE:compile
[INFO]    \- org.springframework.amqp:spring-rabbit:jar:2.1.6.RELEASE:compile
[INFO]       +- org.springframework.amqp:spring-amqp:jar:2.1.6.RELEASE:compile
[INFO]       |  \- org.springframework.retry:spring-retry:jar:1.2.4.RELEASE:compile
[INFO]       +- com.rabbitmq:amqp-client:jar:5.4.3:compile
[INFO]       |  \- org.slf4j:slf4j-api:jar:1.7.26:compile
[INFO]       \- org.springframework:spring-tx:jar:5.1.7.RELEASE:compile

2. springBoot 配置文件下配置rabbitMQ属性

spring.rabbitmq.host=127.0.0.1
spring.rabbitmq.port=5672
spring.rabbitmq.username=guest
spring.rabbitmq.password=guest

3. 创建Queue并注入到spring容器中

@Configuration
public class QueueConfig {
    @Bean
    public Queue queue() {
        return new Queue("test_queue");
    }
}

4. Sender 发送数据到Queue

@Component
public class Sender {
    @Autowired
    private AmqpTemplate template;
    public void send(String message) {
        template.convertAndSend("test_queue",message);
    }
}

其中AmqpTemplate是SpringBoot生成的默认实现，在代码里面可以直接引入使用。

5. Receiver 消费Queue中的数据

@Component
@RabbitListener(queues = "test_queue")
public class Receiver {
    Logger logger = LoggerFactory.getLogger(Receiver.class.getName());
    @RabbitHandler
    public void process(String message) {
        logger.info(message);
    }
}

添加Queue的listener，并对收到的消息进行处理。注意，receiver要注入到容器中（@Component）才能对消息进行监听。

上面采用Direct的方式来使用queue。接下来使用Topic、Fanout...

转载于:https://www.jianshu.com/p/9cf3e883b4c0