springboot整合RabbitMQ 中的 TTL实例代码

package com.xbfinal.springbootrabbitmq.config;


import org.springframework.amqp.core.*;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import java.util.HashMap;

/**
 * ttl队列 配置文件类
 *
 */
@Configuration
public class TtlQueueConfig {

    //普通交换机名称
    public static final String X_EXCHANGE="X";
    //死信交换机名称
    public static final String Y_DEAD_LETTER_EXCHANGE="Y";
    //普通队列名称
    public static final String QUEUE_A="QA";
    public static final String QUEUE_B="QB";
    //死信队列名称
    public static final String DEAD_LETTER_QUEUE_D="QD";

    /**
     * 声明x交换机
     * @return
     */
    @Bean("xExchange")//别名和方法名取一样
    public DirectExchange xExchange(){
        return new DirectExchange(X_EXCHANGE);
    }

    /**
     * 声明y交换机
     * @return
     */
    @Bean("yExchange")//别名和方法名取一样
    public DirectExchange yExchange(){
        return new DirectExchange(Y_DEAD_LETTER_EXCHANGE);
    }

    //声明队列A
    @Bean("queueA")
    public Queue queueA(){
        final HashMap<String, Object> arguments
                = new HashMap<>();
        //设置死信交换机
        arguments.put("x-dead-letter-exchange",Y_DEAD_LETTER_EXCHANGE);
        //设置死信RoutingKey
        arguments.put("x-dead-letter-routing-key","YD");
        //设置TTL设置10秒过期
        arguments.put("x-message-ttl",10000);

        return QueueBuilder.durable(QUEUE_A)
                .withArguments(arguments)
                .build();
    }

    //声明队列B
    @Bean("queueB")
    public Queue queueB(){
         HashMap<String, Object> arguments
                = new HashMap<>();
        //设置死信交换机
        arguments.put("x-dead-letter-exchange",Y_DEAD_LETTER_EXCHANGE);
        //设置死信RoutingKey
        arguments.put("x-dead-letter-routing-key","YD");
        //设置TTL设置40秒过期
        arguments.put("x-message-ttl",40000);

        return QueueBuilder.durable(QUEUE_B)
                .withArguments(arguments)
                .build();
    }

    @Bean("queueD")
    public Queue queueD(){
        return QueueBuilder.durable(DEAD_LETTER_QUEUE_D)
                .build();
    }

    /**
     * A队列绑定X交换机
     * @param queueA
     * @return
     */
    @Bean
    public Binding queueABindingX(@Qualifier("queueA")Queue queueA,
                                  @Qualifier("xExchange") DirectExchange xExchange){
        return BindingBuilder.bind(queueA).to(xExchange).with("XA");
    }

    /**
     * B队列绑定X交换机
     * @param queueB
     * @param xExchange
     * @return
     */
    @Bean
    public Binding queueBBindingX(@Qualifier("queueB")Queue queueB,
                                  @Qualifier("xExchange") DirectExchange xExchange){
        return BindingBuilder.bind(queueB).to(xExchange).with("XB");
    }

    /**
     * D队列绑定死信y交换机
     * @param queueD
     * @param yExchange
     * @return
     */
    @Bean
    public Binding queueDBindingX(@Qualifier("queueD")Queue queueD,
                                  @Qualifier("yExchange") DirectExchange yExchange){
        return BindingBuilder.bind(queueD).to(yExchange).with("YD");
    }

}

package com.xbfinal.springbootrabbitmq.controller;

import lombok.extern.slf4j.Slf4j;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.Date;

/**
 * 生产者
 * 发送延迟消息
 */
@Slf4j
@RestController
@RequestMapping("/ttl")
public class SendMsgController {

    @Autowired
    private RabbitTemplate rabbitTemplate;

    @GetMapping("/sendMsg/{message}")
    public void sendMsg(@PathVariable String message){
        log.info("当前时间:{},发送了一条消息({})给两个队列", new Date().toString(),message);
        //发送消息
        rabbitTemplate.convertAndSend("X","XA","10秒"+message);
        rabbitTemplate.convertAndSend("X","XB","40秒"+message);
    }
}

package com.xbfinal.springbootrabbitmq.consumer;

import com.rabbitmq.client.Channel;
import lombok.extern.slf4j.Slf4j;
import org.springframework.amqp.core.Message;
import org.springframework.amqp.rabbit.annotation.RabbitListener;
import org.springframework.stereotype.Component;
import java.util.Date;

/**
 * 队列TTL的消费者
 */
@Slf4j
@Component
public class DeadLetterQueueConsumer {

    //接收消息
    @RabbitListener(queues = "QD")
    public void receivedD(Message message, Channel channel)throws Exception{
        String msg=new String(message.getBody());
        log.info("当前时间：{}，收到消息：{}",new Date().toString(),msg);
    }
}