消息中间件——RabbitMQRabbitMQ整合Spring Cloud Stream实战！（全）

@EnableBinding(Sink.class)
public class LoggingConsumer {
 
    private static Logger logger = LoggerFactory.getLogger(LoggingConsumer.class);
 
    @StreamListener(Sink.INPUT)
    public void handle(Person person) {
        logger.info("Received: " + person);
    }
 
}
 
@EnableBinding(Source.class)
public class MainApplication {
 
    private static Logger logger = LoggerFactory.getLogger(MainApplication.class);
 
    @Autowired
    private Source source;
 
    public static void main(String[] args) {
        SpringApplication.run(MainApplication.class, args);
    }
 
    @Bean
    public ApplicationRunner runner() {
        return args -> {
            source.output().send(MessageBuilder.withPayload(new Person("John", "Doe")).build());
            logger.info("Message sent");
        };
    }
 
}

在这个例子中，我们定义了一个消息接收者LoggingConsumer，它使用@StreamListener注解来监听输入端点，并将接收到的消息打印到日志中。MainApplication类则通过Source绑定，并在程序启动时发送一条消息到RabbitMQ。这个例子展示了如何使用Spring Cloud Stream与RabbitMQ进行消息的发送和接收。