工作队列又叫任务队列，避免立即执行资源密集型任务，而不得不等待它完成。把任务封装成消息并将其发送到队列，当有多个工作线程时，这些工作线程将一起处理这些任务。

多个工作线程也就是多个消费者，采用轮训分发。

工具类

java">package com.xkj.org.utils;

import com.rabbitmq.client.Channel;
import com.rabbitmq.client.Connection;
import com.rabbitmq.client.ConnectionFactory;

public class RabbitMQUtil {

    public static Channel getChannel() {
        try {
            //创建连接工厂
            ConnectionFactory connectionFactory = new ConnectionFactory();
            connectionFactory.setHost("192.168.171.128");
            connectionFactory.setUsername("admin");
            connectionFactory.setPassword("123");
            //创建连接
            Connection connection = connectionFactory.newConnection();
            //创建信道
            Channel channel = connection.createChannel();
            return channel;
        }catch (Exception e){
            e.printStackTrace();
        }
        return null;

    }
}

消费者工作线程（启动多个）

java">package com.xkj.org.mq.work;

import com.rabbitmq.client.CancelCallback;
import com.rabbitmq.client.Channel;
import com.rabbitmq.client.DeliverCallback;
import com.xkj.org.utils.RabbitMQUtil;

import java.io.IOException;

public class Work01 {

    private static final String QUEUE_NAME = "hello";

    public static void main(String[] args) throws IOException {
        Channel channel = RabbitMQUtil.getChannel();
        DeliverCallback deliverCallback = (consumerTag, message) -> {
            System.out.println("work1 接受到消息："+ new String(message.getBody()));
        };
        CancelCallback cancelCallback = consumerTag -> {
            System.out.println("work1 消息消费被中断");
        };
        System.out.println("work1等待接收......");
        channel.basicConsume(QUEUE_NAME, true, deliverCallback, cancelCallback);
    }
}

生产者

java">package com.xkj.org.mq.work;

import com.rabbitmq.client.Channel;
import com.xkj.org.utils.RabbitMQUtil;

import java.io.IOException;
import java.util.Scanner;

public class Task01 {

    private static final String QUEUE_NAME = "hello";

    public static void main(String[] args) throws IOException {
        Channel channel = RabbitMQUtil.getChannel();
        channel.queueDeclare(QUEUE_NAME, false, false, false, null);

        Scanner scanner = new Scanner(System.in);
        while (scanner.hasNext()) {
            String message = scanner.next();
            channel.basicPublish("", QUEUE_NAME, null, message.getBytes());
            System.out.println("发送消息完成，消息内容："+ message);
        }
    }
}