Rabbitmq confirm 异步模式

Posted 2021-02-16 mm163

//存储未确认的消息标识tag
final SortedSet<Long> confirmSet = Collections.synchronizedNavigableSet(new TreeSet<Long>());

增加监听器
channel.addConfirmListener(new ConfirmListener() {

    /*
     * 消息确认返回成功
     * l:如果是多条，这个就是最后一条消息的tag
     * b:是否多条
     * */
    @Override
    public void handleAck(long l, boolean b) throws IOException {
        System.out.println("消息发送成功"+l+"是否多条"+b);
        if(b){
            confirmSet.headSet(l+1).clear();
        }else{
            confirmSet.remove(l);
        }
    }

    /*消息确认返回失败*/
    @Override
    public void handleNack(long l, boolean b) throws IOException {
        System.out.println("消息发送失败"+l+"是否多条"+b);
        if(b){
            confirmSet.headSet(l+1).clear();
        }else{
            confirmSet.remove(l);
        }
    }
});

String routingKey ="goods.delete";
for (int i = 0; i <10; i++) {
    String message = "hello ps"+i;
    long tag = channel.getNextPublishSeqNo();
    channel.basicPublish(Exchange_NAME,routingKey,null,message.getBytes("utf-8"));
    System.out.println(tag);
    confirmSet.add(tag);
}

发送者

package com.aynu.bootamqp.service;

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


import java.io.IOException;
import java.util.Collections;
import java.util.SortedSet;
import java.util.TreeSet;
import java.util.concurrent.TimeoutException;

public class Send {

    private final static String Exchange_NAME ="hello";
    public static void main(String[] args) throws IOException, TimeoutException, InterruptedException {
            Connection connection = Amqp.getConnection();
            Channel channel = connection.createChannel();
            //声明交换机
            channel.exchangeDeclare(Exchange_NAME,"topic");
            //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);
            //将通道设置为comfirm模式
            channel.confirmSelect();

        //存储未确认的消息标识tag
        final SortedSet<Long> confirmSet = Collections.synchronizedNavigableSet(new TreeSet<Long>());

        channel.addConfirmListener(new ConfirmListener() {

            /*
             * 消息确认返回成功
             * l:如果是多条，这个就是最后一条消息的tag
             * b:是否多条
             * */
            @Override
            public void handleAck(long l, boolean b) throws IOException {
                System.out.println("消息发送成功"+l+"是否多条"+b);
                if(b){
                    confirmSet.headSet(l+1).clear();
                }else{
                    confirmSet.remove(l);
                }
            }

            /*消息确认返回失败*/
            @Override
            public void handleNack(long l, boolean b) throws IOException {
                System.out.println("消息发送失败"+l+"是否多条"+b);
                if(b){
                    confirmSet.headSet(l+1).clear();
                }else{
                    confirmSet.remove(l);
                }
            }
        });


            String routingKey ="goods.delete";
            for (int i = 0; i <10; i++) {
                String message = "hello ps"+i;
                long tag = channel.getNextPublishSeqNo();
                channel.basicPublish(Exchange_NAME,routingKey,null,message.getBytes("utf-8"));
                System.out.println(tag);
                confirmSet.add(tag);
            }


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

接受者

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 ="hello1";
    private final static String Exchange_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.queueBind(QUEUE_NAME,Exchange_NAME,"goods.#");
        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(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);
    }
}