springcloud中RabbitMQ死信队列与延迟交换机实现方法

@Configuration
public class RabbitMqConfig {

    private static final String TEST_EXCHANGE = "test.exchange";
    private static final String TEST_QUEUE = "test.queue";
    private static final String TEST_ROUTING_KEY = "test.routing.key";
    private static final String DEAD_EXCHANGE = "dead.exchange";
    private static final String DEAD_QUEUE = "dead.queue";
    private static final String DEAD_ROUTING_KEY = "dead.routing.key";
    
    @Bean
    public Queue deadQueue(){
        return new Queue(DEAD_QUEUE);
    }
    public DirectExchange deadExchange(){
    // 设置演示，使用了直接交换机Direct，大家可以根据自己的业务情况声明为其他类型的交换机
        return new DirectExchange(DEAD_EXCHANGE);
    public Binding deadBinding(Queue deadQueue,Exchange deadExchange){
        return BindingBuilder.bind(deadQueue).to(deadExchange).with(DEAD_ROUTING_KEY).noargs();
    public Queue testQueue(){
        return QueueBuilder.durable(TEST_QUEUE).deadLetterExchange(DEAD_EXCHANGE).deadLetterRoutingKey(DEAD_ROUTING_KEY).build();
    public DirectExchange testExchange(){
        return new DirectExchange(TEST_EXCHANGE);
    public Binding testQueueBing(Queue testQueue, DirectExchange testExchange){
        return BindingBuilder.bind(testQueue).to(testExchange).with(TEST_ROUTING_KEY);
}

@Component
public class QueueListener {
    @RabbitListener(queues = RabbitMqConfig.TEST_QUEUE)
    public void handler(MyMessage messageInfo, Message message, Channel channel) {
        try{
            System.out.println("接收的消息：" messageInfo.toString());
            // requeue参数设置为false 设置死信消息
            channel.basicReject(message.getMessageProperties().getDeliveryTag(),false);
            // multiple和requeue设置为false 设置死信消息
            channel.basicNack(message.getMessageProperties().getDeliveryTag(),false,false);
            // 返回ack 确认接收到消息
//            channel.basicAck(message.getMessageProperties().getDeliveryTag(),false);
        }catch (IOException e){
            try {
                channel.basicRecover();
            } catch (IOException ex) {
                ex.printStackTrace();
                log.error("消息处理失败：{}",e.getMessage());
            }
        }
    }
}

    @GetMapping("sendTestQueueWithExpiration")
    public String sendTestQueueWithExpiration(){
        MyMessage message = new MyMessage(1L,"物流提醒","到达装货区域，注意上传凭证",new Date());
        rabbitTemplate.convertAndSend(RabbitMqConfig.TEST_EXCHANGE,RabbitMqConfig.TEST_ROUTING_KEY, message,msg -> {
            msg.getMessageProperties().setExpiration("5000");
            return msg;
        });
        return "发送成功";
    }

    @Bean
    public Queue testQueue(){
        return QueueBuilder.durable(TEST_QUEUE)
                .deadLetterExchange(DEAD_EXCHANGE)
                .deadLetterRoutingKey(DEAD_ROUTING_KEY)
                // 10s 过期
                .ttl(10000)
                .build();
    }

    @Bean
    public Queue testQueue(){
        return QueueBuilder.durable(TEST_QUEUE)
                .deadLetterExchange(DEAD_EXCHANGE)
                .deadLetterRoutingKey(DEAD_ROUTING_KEY)
                // 容量最大100条
                .maxLength(100)
                .build();
    }

@Configuration
public class RabbitMqDelayConfig {
    public static final String DELAY_EXCHANGE = "delay.exchange";
    public static final String DELAY_QUEUE = "delay.queue";
    public static final String DELAY_ROUTING_KEY = "delay.routing.key";
    @Bean
    public Exchange delayExchange(){
        Map<String, Object> arguments = new HashMap<>(1);
        arguments.put("x-delayed-type","direct");
        return new CustomExchange(DELAY_EXCHANGE,"x-delayed-message",true,false,arguments);
    }
    @Bean
    public Queue delayQueue(){
        return new Queue(DELAY_QUEUE);
    }
    @Bean
    public Binding delayBinding(Queue delayQueue, Exchange delayExchange){
        return BindingBuilder.bind(delayQueue).to(delayExchange).with(DELAY_ROUTING_KEY).noargs();
    }

}

rabbitTemplate.convertAndSend(DelayedConfig.DELAYED_EXCHANGE, "delayed.abc", "xxxx", new MessagePostProcessor() {
            @Override
            public Message postProcessMessage(Message message) throws AmqpException {
                message.getMessageProperties().setDelay(30000);
                return message;
            }
        });

/**
	 * 发送 延迟队列
	 * @param exchange 交换机
	 * @param routeKey 路由
	 * @param message 消息
	 * @param delaySecond 延迟秒数
	 */
	public void send(String exchange, String routeKey, Object message, int delaySecond){  
		rabbitTemplate.convertAndSend(exchange,routeKey,message,msg -> {
			// 消息持久化 
			msg.getMessageProperties().setDelay(delaySecond * 1000);
			return msg;
		});
	}