Spring Cloud Stream

最新推荐文章于 2024-12-13 22:45:11 发布

菜鸟先飞123

最新推荐文章于 2024-12-13 22:45:11 发布

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分类专栏： springcloud 文章标签： cloud

本文链接：https://blog.youkuaiyun.com/qq_38224607/article/details/107598135

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1.导入依赖

<dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-starter-stream-rabbit</artifactId>
</dependency>

2.配置yml

spring:
  rabbitmq:
    host: 192.168.0.133
    port: 5672
    password: guest
    username: guest

3.新建接口

public interface StreamClient {
    String INPUT="input";
    String OUTPUT="output";
    @Input(StreamClient.INPUT)
    SubscribableChannel input();
    @Output(StreamClient.OUTPUT)
    MessageChannel output();
}

4.消费者

@Component
@EnableBinding(StreamClient.class)
@Slf4j
public class StreamReceiver {
    @StreamListener(StreamClient.INPUT)
    @SendTo(StreamClient.OUTPUT)
    public Object process(Object message){
      log.info("StreamReceiver1: {}",message);
      return message;
    }
    @StreamListener(StreamClient.OUTPUT)
    public void processOutput(Object message){
      log.info("StreamReceiver2: {}",message);
    }
}

5.生产者

@RestController
public class SendMessageController {
    @Autowired
    private StreamClient streamClient;
    @GetMapping("/sendMessage")
    public void process(){
        OrderDTO orderDTO=new OrderDTO();
        orderDTO.setOrderId("1111111111");
        streamClient.output().send(MessageBuilder.withPayload("now "+orderDTO).build());
    }
}

6.注意消息分组

spring:
  cloud:
    stream:
      bindings:
        input:
          group: order #消息分组
            content-type: application/json  #消息存储格式