Rabbitmq 死信取消超时订单

本文使用的版本

• otp_win64_25.0
• rabbitmq-server-3.11.26
• rabbitmq插件 rabbitmq_delayed_message_exchange-3.11.1

pom.xml文件

<dependency>
	<groupId>org.springframework.bootgroupId>
	<artifactId>spring-boot-starter-amqpartifactId>
dependency>
<dependency>
	<groupId>com.rabbitmqgroupId>
	<artifactId>amqp-clientartifactId>
	<version>5.11.0version>
dependency>

OrderTimeOutCancelConfig.java

@Configuration
@Data
public class OrderTimeOutCancelConfig {
    /**
     * 正常订单队列，此队列不要绑定消费者，否自无法进入死信队列
     */
    @Bean
    public Queue orderQueue() {
        Map<String, Object> arguments = new HashMap<>();
        arguments.put("x-message-ttl", 10000);//超时关闭时间10s
        arguments.put("x-dead-letter-exchange", RabbitConstants.ORDER_DLX_EXCHANGE);
        arguments.put("x-dead-letter-routing-key", RabbitConstants.ORDER_DLX_ROUTING_KEY);
        Queue queue = new Queue(RabbitConstants.ORDER_QUEUE, true, false, false, arguments);
        return queue;
    }
	/**
     * 自定义交换机
     */
    @Bean
    public CustomExchange orderExchange() {
        Map<String, Object> arguments = new HashMap<>();
        arguments.put("x-delayed-type", ExchangeTypes.TOPIC);
        return new CustomExchange(RabbitConstants.ORDER_EXCHANGE, "x-delayed-message", true, false, arguments);
    }
	/**
     * 绑定交换机和队列
     */
    @Bean
    public Binding orderRouting() {
        return BindingBuilder
                .bind(orderQueue())
                .to(orderExchange())
                .with(RabbitConstants.ORDER_ROUTING_KEY)
                .noargs();
    }

    /**
     * 订单死信队列
     * @return {@link Queue}
     */
    @Bean
    public Queue orderDlxQueue() {
        Queue queue = new Queue(RabbitConstants.ORDER_DLX_QUEUE, true, false, false);
        return queue;
    }
	/**
     * 死信交换机
     */
    @Bean
    public Exchange orderDlxExchange() {
        return new DirectExchange(RabbitConstants.ORDER_DLX_EXCHANGE, true, false, null);
    }
	/**
     * 绑定
     */
    @Bean
    public Binding orderDlxRouting() {
        return BindingBuilder
                .bind(orderDlxQueue())
                .to(orderDlxExchange())
                .with(RabbitConstants.ORDER_DLX_ROUTING_KEY)
                .noargs();
    }
}

@Component
@Slf4j
public class OrderCancelHandler {

	/**
	*	监听订单死信队列，关闭订单
	*/
    @RabbitListener(queues = RabbitConstants.ORDER_DLX_QUEUE, ackMode = "MANUAL")
    public void onMessage(Message message, Channel channel) throws IOException {
       log.info("消息进入死信队列...");
        String thdTransFlow = new String(message.getBody());
        log.info(thdTransFlow + "订单取消");
        // 手动ack
        channel.basicAck(message.getMessageProperties().getDeliveryTag(), false);
    }
}

OrderService.java

@Resource

	private AmqpTemplate amqpTemplate;
	public R purchase(){
		//其它业务处理
           //放入队列
           try {
               amqpTemplate.convertAndSend(RabbitConstants.ORDER_EXCHANGE, RabbitConstants.ORDER_ROUTING_KEY, thdTransFlow.getBytes());   //使用上面默认时间
            // 放入死信队列    需要指定其它过期时间时，根据需求二选一即可
           //Integer delayTime = 10 * 1000;
           //amqpTemplate.convertAndSend(RabbitConstants.ORDER_EXCHANGE, RabbitConstants.ORDER_ROUTING_KEY, thdTransFlow, message -> {
               //message.getMessageProperties().setDelay(delayTime);
               //return message;
           //}); 
           } catch (AmqpException e) {
               log.error("放入取消队列出现异常{}",e.getMessage());
               //throw new RuntimeException(e);
           }          
           //其它业务处理
      }