RabbitMQ消费端自定义监听器DefaultConsumer

Posted 2022-02-25 lflying

消费者

package com.flying.rabbitmq.api.consumer;

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

/**
 * 自定义消费者类型
 */
public class Consumer 

    
    public static void main(String[] args) throws Exception 
        
        
        ConnectionFactory connectionFactory = new ConnectionFactory();
        connectionFactory.setHost("127.0.0.1");
        connectionFactory.setPort(5672);
        connectionFactory.setVirtualHost("/");
        
        Connection connection = connectionFactory.newConnection();
        Channel channel = connection.createChannel();
        
        
        String exchangeName = "test_consumer_exchange";
        String routingKey = "consumer.#";
        String queueName = "test_consumer_queue";
        
        channel.exchangeDeclare(exchangeName, "topic", true, false, null);
        channel.queueDeclare(queueName, true, false, false, null);
        channel.queueBind(queueName, exchangeName, routingKey);
        
        channel.basicConsume(queueName, true, new MyConsumer(channel));

    

自定义消费者

package com.flying.rabbitmq.api.consumer;

import com.rabbitmq.client.AMQP;
import com.rabbitmq.client.Channel;
import com.rabbitmq.client.DefaultConsumer;
import com.rabbitmq.client.Envelope;

import java.io.IOException;

/**
 * 实现自己的Consumer
 */
public class MyConsumer extends DefaultConsumer 
    public MyConsumer(Channel channel)
        super(channel);
    
    @Override
    public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties, byte[] body) throws IOException 
        System.err.println("-----------consume message----------");
        System.err.println("consumerTag: " + consumerTag);
        System.err.println("envelope: " + envelope);
        System.err.println("properties: " + properties);
        System.err.println("body: " + new String(body));
    

生产者

package com.flying.rabbitmq.api.consumer;

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

public class Producer 

    
    public static void main(String[] args) throws Exception 
        
        ConnectionFactory connectionFactory = new ConnectionFactory();
        connectionFactory.setHost("127.0.0.1");
        connectionFactory.setPort(5672);
        connectionFactory.setVirtualHost("/");
        
        Connection connection = connectionFactory.newConnection();
        Channel channel = connection.createChannel();
        
        String exchange = "test_consumer_exchange";
        String routingKey = "consumer.save";
        
        String msg = "Hello RabbitMQ Consumer Message";
        
        for(int i =0; i<5; i ++)
            channel.basicPublish(exchange, routingKey, true, null, msg.getBytes());