RabbitMQ 3：原生Java客户端+Topic交换器+消息通信

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1.创建生产者TopicProducer

package com.rabbit.fisher.topic;

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

import java.io.IOException;
import java.util.concurrent.TimeoutException;
/**
 *Topic类型的生产者
 * 交换器 topic_logs，
 * 老师有cang,song,xiaoze，
 * 专题有mq,jvm,redis，
 * 章节有 A、B、C，
 * 路由键的规则为 老师+“.”+专题+“.”+章节，如：cang.mq.A。
 * 生产者--生产全部的消息3*3*3=27条消息
 */
public class TopicProducer {

    public final static String EXCHANGE_NAME="topic_logs";

    public static void main( String[] args ) throws IOException, TimeoutException {
        //创建链接、连接到MQ
        ConnectionFactory connectionFactory = new ConnectionFactory();
        //设置连接工厂的连接地址(默认端口5672)
        connectionFactory.setHost("192.168.42.111");
        //设置虚拟主机
        connectionFactory.setVirtualHost("fisher");
        //设置用户名
        connectionFactory.setUsername("fisher");
        //设置密码
        connectionFactory.setPassword("123456");
        //创建连接
        Connection connection = connectionFactory.newConnection();
        //创建信道
        Channel channel = connection.createChannel();
        //在信道中设置交换器
        channel.exchangeDeclare(EXCHANGE_NAME, BuiltinExchangeType.TOPIC);
        //在消费者中申明队列

        //申明路由键及消息体
        String[] teachers = {"cang", "song", "xiaoze"};
        for (int i = 0; i < 3; i++) {
            String[] modules = {"mq", "jvm", "redis"};
            for (int j = 0; j < 3; j++) {
                String[] chapters = {"A", "B", "C"};
                for (int k = 0; k < 3; k++) {
                    //发送的消息
                    String msg = "Hello World [" + i + "," + j + "," + k + "]";
                    String routeKey = teachers[i] + "." + modules[j] + "." + chapters[k];
                    channel.basicPublish(EXCHANGE_NAME, routeKey, null, msg.getBytes());
                    System.out.println("Send:" + routeKey + ";" + msg);
                }
            }
        }
        //关闭信道
        channel.close();
        //关闭连接
        connection.close();
    }
}

2.创建消费者AllConsumer，匹配规则#，消费所有消息

package com.rabbit.fisher.topic;

import com.rabbitmq.client.*;

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

/**
 *topic类型交换器的消费者，规则“#”消费所有消息
 */
public class AllConsumer
{

    public static void main( String[] args ) throws IOException, TimeoutException {
        //创建链接、连接到MQ
        ConnectionFactory connectionFactory = new ConnectionFactory();
        //设置连接工厂的连接地址(默认端口5672)
        connectionFactory.setHost("192.168.42.111");
        //设置虚拟主机
        connectionFactory.setVirtualHost("fisher");
        //设置用户名
        connectionFactory.setUsername("fisher");
        //设置密码
        connectionFactory.setPassword("123456");
        //创建连接
        Connection connection = connectionFactory.newConnection();
        //创建信道
        Channel channel = connection.createChannel();
        //在信道中设置交换器(这里选择直接交换器direct)
        channel.exchangeDeclare(TopicProducer.EXCHANGE_NAME, BuiltinExchangeType.TOPIC);
        //申明一个随机队列
        String queueName = channel.queueDeclare().getQueue();
        //绑定#
        channel.queueBind(queueName, TopicProducer.EXCHANGE_NAME, "#");
        System.out.println("waiting for message ......");

        //申明一个消费者
        final Consumer consumer = new DefaultConsumer(channel){
            @Override
            public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties, byte[] body) throws IOException {
                String message = new String(body, "UTF-8");
                System.out.println("Receive[" + envelope.getRoutingKey() + "]" + message);
            }
        };
        channel.basicConsume(queueName, true, consumer);
    }
}

3.先启动消费者

4.再启动生产者，总共生产27条消息

Send:cang.mq.A;Hello World [0,0,0]
Send:cang.mq.B;Hello World [0,0,1]
Send:cang.mq.C;Hello World [0,0,2]
Send:cang.jvm.A;Hello World [0,1,0]
Send:cang.jvm.B;Hello World [0,1,1]
Send:cang.jvm.C;Hello World [0,1,2]
Send:cang.redis.A;Hello World [0,2,0]
Send:cang.redis.B;Hello World [0,2,1]
Send:cang.redis.C;Hello World [0,2,2]
Send:song.mq.A;Hello World [1,0,0]
Send:song.mq.B;Hello World [1,0,1]
Send:song.mq.C;Hello World [1,0,2]
Send:song.jvm.A;Hello World [1,1,0]
Send:song.jvm.B;Hello World [1,1,1]
Send:song.jvm.C;Hello World [1,1,2]
Send:song.redis.A;Hello World [1,2,0]
Send:song.redis.B;Hello World [1,2,1]
Send:song.redis.C;Hello World [1,2,2]
Send:xiaoze.mq.A;Hello World [2,0,0]
Send:xiaoze.mq.B;Hello World [2,0,1]
Send:xiaoze.mq.C;Hello World [2,0,2]
Send:xiaoze.jvm.A;Hello World [2,1,0]
Send:xiaoze.jvm.B;Hello World [2,1,1]
Send:xiaoze.jvm.C;Hello World [2,1,2]
Send:xiaoze.redis.A;Hello World [2,2,0]
Send:xiaoze.redis.B;Hello World [2,2,1]
Send:xiaoze.redis.C;Hello World [2,2,2]

5.查看打印，消费者消费了所有消息

waiting for message ......
Receive[cang.mq.A]Hello World [0,0,0]
Receive[cang.mq.B]Hello World [0,0,1]
Receive[cang.mq.C]Hello World [0,0,2]
Receive[cang.jvm.A]Hello World [0,1,0]
Receive[cang.jvm.B]Hello World [0,1,1]
Receive[cang.jvm.C]Hello World [0,1,2]
Receive[cang.redis.A]Hello World [0,2,0]
Receive[cang.redis.B]Hello World [0,2,1]
Receive[cang.redis.C]Hello World [0,2,2]
Receive[song.mq.A]Hello World [1,0,0]
Receive[song.mq.B]Hello World [1,0,1]
Receive[song.mq.C]Hello World [1,0,2]
Receive[song.jvm.A]Hello World [1,1,0]
Receive[song.jvm.B]Hello World [1,1,1]
Receive[song.jvm.C]Hello World [1,1,2]
Receive[song.redis.A]Hello World [1,2,0]
Receive[song.redis.B]Hello World [1,2,1]
Receive[song.redis.C]Hello World [1,2,2]
Receive[xiaoze.mq.A]Hello World [2,0,0]
Receive[xiaoze.mq.B]Hello World [2,0,1]
Receive[xiaoze.mq.C]Hello World [2,0,2]
Receive[xiaoze.jvm.A]Hello World [2,1,0]
Receive[xiaoze.jvm.B]Hello World [2,1,1]
Receive[xiaoze.jvm.C]Hello World [2,1,2]
Receive[xiaoze.redis.A]Hello World [2,2,0]
Receive[xiaoze.redis.B]Hello World [2,2,1]
Receive[xiaoze.redis.C]Hello World [2,2,2]

6.创建消费者Cang_AllConsumer，匹配规则cang.#，消费cang开头的所有消息

package com.rabbit.fisher.topic;

import com.rabbitmq.client.*;

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

/**
 *消费所有cang老师的消息
 */
public class Cang_AllConsumer
{

    public static void main( String[] args ) throws IOException, TimeoutException {
        //创建链接、连接到MQ
        ConnectionFactory connectionFactory = new ConnectionFactory();
        //设置连接工厂的连接地址(默认端口5672)
        connectionFactory.setHost("192.168.42.111");
        //设置虚拟主机
        connectionFactory.setVirtualHost("fisher");
        //设置用户名
        connectionFactory.setUsername("fisher");
        //设置密码
        connectionFactory.setPassword("123456");
        //创建连接
        Connection connection = connectionFactory.newConnection();
        //创建信道
        Channel channel = connection.createChannel();
        //在信道中设置交换器(这里选择直接交换器direct)
        channel.exchangeDeclare(TopicProducer.EXCHANGE_NAME, BuiltinExchangeType.TOPIC);
        //申明一个随机队列
        String queueName = channel.queueDeclare().getQueue();
        //绑定cang.#
        channel.queueBind(queueName, TopicProducer.EXCHANGE_NAME, "cang.#");
        System.out.println("waiting for message ......");

        //申明一个消费者
        final Consumer consumer = new DefaultConsumer(channel){
            @Override
            public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties, byte[] body) throws IOException {
                String message = new String(body, "UTF-8");
                System.out.println("Receive[" + envelope.getRoutingKey() + "]" + message);
            }
        };
        channel.basicConsume(queueName, true, consumer);
    }
}

7.先启动消费者

8.再启动生产者

9.查看打印，消费所有cang开头的消息

waiting for message ......
Receive[cang.mq.A]Hello World [0,0,0]
Receive[cang.mq.B]Hello World [0,0,1]
Receive[cang.mq.C]Hello World [0,0,2]
Receive[cang.jvm.A]Hello World [0,1,0]
Receive[cang.jvm.B]Hello World [0,1,1]
Receive[cang.jvm.C]Hello World [0,1,2]
Receive[cang.redis.A]Hello World [0,2,0]
Receive[cang.redis.B]Hello World [0,2,1]
Receive[cang.redis.C]Hello World [0,2,2]