Springboot使用RabbitMQ实现关闭超时订单(示例详解)

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

# rabbitmq空一格写，内嵌在spring里边
rabbitmq:
    host: 192.168.56.10
    port: 5672
    virtual-host: /
    #发送端确认机制 correlated：发布消息成功到交换器后会触发回调方法
    publisher-confirm-type: correlated
    template:
    # 只要抵达队列，以异步发送优先回调以异步发送优先回调我们这个returnconfirm
      mandatory: true
    # 开启发送消息抵达队列的确认
    publisher-returns: true

import com.atguigu.gulimall.order.entity.OrderEntity;
import com.rabbitmq.client.Channel;
import org.springframework.amqp.core.*;
import org.springframework.amqp.rabbit.annotation.RabbitListener;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
@Configuration
public class MyMQConfig {
    @Bean
    public Queue orderDelayQueue(){
        /* * 构造一个死信队列
         *  x-dead-letter-exchange: order-event-exchange
         *  x-dead-letter-routing-key: order.release.order
         *  x-message-ttl: 60000
         * @create 2025/1/1
         **/
        Map<String,Object>arguments=new HashMap<>();
        arguments.put("x-dead-letter-exchange","order-event-exchange");
        arguments.put("x-dead-letter-routing-key","order.release.order");
        arguments.put("x-message-ttl",60000);
        Queue queue = new Queue("order.delay.queue", true, false, false,arguments);
        return queue;
    }
    @Bean
    public Queue orderReleaseOrderQueue(){
        Queue queue = new Queue("order.release.order.queue", true, false, false);
        return queue;
    }
    @Bean
    public Exchange orderEventExchange(){
       return new TopicExchange("order-event-exchange",true,false);
    }
    @Bean
    public Binding orderCreateOrderBinding(){
       return new Binding("order.delay.queue", Binding.DestinationType.QUEUE,"order-event-exchange","order.create.order",null);
    }
    @Bean
    public Binding orderReleaseOrderBinding(){
        return new Binding("order.release.order.queue", Binding.DestinationType.QUEUE,"order-event-exchange","order.release.order",null);
    }
}
 

    @RabbitListener(queues = "order.release.order.queue")
    public void listener(OrderEntity order, Channel channel, Message message) throws IOException {
        System.out.println("收到过期的订单信息，准备关闭订单"+order.getOrderSn());
        channel.basicAck(message.getMessageProperties().getDeliveryTag(),false);
    }

    @Autowired
    private RabbitTemplate rabbitTemplate;
    @GetMapping("/test/createOrder")
    @ResponseBody
    public String creatOrder(){
        OrderEntity order=new OrderEntity();
        order.setOrderSn(UUID.randomUUID().toString());
        order.setCreateTime(new Date());
        rabbitTemplate.convertAndSend("order-event-exchange","order.create.order",order);
        return "ok";
    }