环境：windows
安装erlang和rabbitmq的过程这里不多说，记得两个的版本要对应。

1.启动rabbitmq：

进入sbin目录：

其中可能报错：

则需要终止已经开始的进程（可能是之前启动过）

tasklist|find /i “erl”

erlsrv.exe 4676 Services 0 716 K

erl.exe 5916 Services 0 21,328 K

erl.exe 29252 Console 1 23,428 K

C:\Users\14172>taskkill /pid “4676” -f
SUCCESS: The process with PID 4676 has been terminated.

C:\Users\14172>taskkill /pid “29252” -f
SUCCESS: The process with PID 29252 has been terminated.

C:\Users\14172>taskkill /pid “5916” -f
SUCCESS: The process with PID 5916 has been terminated.

再次输入

rabbitmq-server.bat start

2.在springboot中使用

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

配置：

spring:

  rabbitmq:
    addresses: 127.0.0.1
    port: 5672
    username: guest
    password: guest

代码：

public interface IOrderService {

  ResponseVo<OrderVo> create(Integer uid, Integer shippingId);

  ResponseVo<PageInfo> list(Integer uid, Integer pageNum, Integer pageSize);

  ResponseVo<OrderVo> detail(Integer uid, Long orderNo);

  ResponseVo cancel(Integer uid, Long orderNo);

  void paid(Long orderNo);
}

@Component
@RabbitListener(queues = "payNotify")
@Slf4j
public class PayMsgListener {

  @Autowired
  private IOrderService orderService;

  @RabbitHandler
  public void process(String msg) {
    log.info("【接收到消息】=> {}", msg);

    PayInfo payInfo = new Gson().fromJson(msg, PayInfo.class);
    if (payInfo.getPlatformStatus().equals("SUCCESS")) {
      //修改订单里的状态
      orderService.paid(payInfo.getOrderNo());
    }
  }
}