Rabbitmq(3) work queues

轮询分发：每个消费者处理的消息是一样的

公平分发：能者多劳

*****公平分发

生产者

package com.aynu.bootamqp.service;

import com.aynu.bootamqp.commons.utils.Amqp;
import com.rabbitmq.client.Channel;
import com.rabbitmq.client.Connection;

import java.io.IOException;
import java.util.concurrent.TimeoutException;

public class Send {

    private final static String QUEUE_NAME ="hello";
    public static void main(String[] args) throws IOException, TimeoutException {
            Connection connection = Amqp.getConnection();
            Channel channel = connection.createChannel();
            channel.queueDeclare(QUEUE_NAME,false,false,false,null);

            //在手动确认机制之前
            //一次只发送一条消息，给不同的消费者
            channel.basicQos(1);

            for (int i=0;i<50;i++){
                String message = "hello mm"+i;
                System.out.println(message);
                channel.basicPublish("",QUEUE_NAME,null,message.getBytes("utf-8"));
            }

            channel.close();
            connection.close();
    }
}

消费者1

package com.aynu.bootamqp.service;

import com.aynu.bootamqp.commons.utils.Amqp;
import com.rabbitmq.client.*;

import java.io.IOException;
import java.util.concurrent.TimeoutException;

@SuppressWarnings("all")
public class Receive {

    private final static String QUEUE_NAME ="hello";
    public static void main(String[] args) throws IOException, TimeoutException {
        Connection connection = Amqp.getConnection();
        Channel channel = connection.createChannel();
        channel.queueDeclare(QUEUE_NAME,false,false,false,null);
       // 一次只处理一个消息
        channel.basicQos(1);
        DefaultConsumer consumer = new DefaultConsumer(channel) {

            @Override
            public void handleDelivery(String consumerTag, Envelope envelope,
                                       AMQP.BasicProperties properties, byte[] body) throws IOException {
                super.handleDelivery(consumerTag, envelope, properties, body);
                String msg = new String(body,"utf-8");
                System.out.println("receive"+msg);
                try {
                    Thread.sleep(1000*2);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }finally {
                    // 手动发送消息确认机制
                    channel.basicAck(envelope.getDeliveryTag(),false);
                }
            }
        };
        // 自动应答
        boolean autoAck = false;
        channel.basicConsume(QUEUE_NAME,autoAck,consumer);
    }
}

消费者2

package com.aynu.bootamqp.service;

import com.aynu.bootamqp.commons.utils.Amqp;
import com.rabbitmq.client.*;

import java.io.IOException;
import java.util.concurrent.TimeoutException;
@SuppressWarnings("all")
public class Receive2 {

    private final static String QUEUE_NAME ="hello";
    public static void main(String[] args) throws IOException, TimeoutException {
        Connection connection = Amqp.getConnection();
        Channel channel = connection.createChannel();
        channel.queueDeclare(QUEUE_NAME,false,false,false,null);

        channel.basicQos(1);
        DefaultConsumer consumer = new DefaultConsumer(channel) {

            @Override
            public void handleDelivery(String consumerTag, Envelope envelope,
                                       AMQP.BasicProperties properties, byte[] body) throws IOException {
                super.handleDelivery(consumerTag, envelope, properties, body);
                String msg = new String(body,"utf-8");
                System.out.println("receive2222"+msg);
                try {
                    Thread.sleep(1000);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }finally {
                    // 手动发送消息确认机制
                    channel.basicAck(envelope.getDeliveryTag(),false);
                }
            }
        };
        boolean autoAck = false;
        channel.basicConsume(QUEUE_NAME,autoAck,consumer);
    }
}