rabbitmq 订阅模型topic

Topic类型的交换机与direct相比，都是可以根据routingkey把消息路由到不同的队列，只不过Topic类型交换机可以让队列绑定的Routingkey的时候使用通配符，这种模型ROutingkey 一般都是由一个或者多个单词组成，多个单词之间以 "."分割

package com.baizhi.Topics;

import com.baizhi.Utils.rabbitmqUtils;
import com.rabbitmq.client.Channel;
import com.rabbitmq.client.Connection;

import java.io.IOException;

public class Provider {
    public static void main(String[] args) {
        Connection connection= rabbitmqUtils.getConnection();
        try {
            Channel channel=connection.createChannel();
            channel.exchangeDeclare("topics", "topic");
            String routeKey="user.save";
            channel.basicPublish("topics", routeKey, null, ("这是topic模型发布的消息，它的routingkey是"+routeKey).getBytes());
            rabbitmqUtils.closeChannlAndConnection(channel, connection);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

package com.baizhi.Topics;

import com.baizhi.Utils.rabbitmqUtils;
import com.rabbitmq.client.*;

import java.io.IOException;

public class Customer {
    public static void main(String[] args) {
        Connection connection= rabbitmqUtils.getConnection();
        try {
            Channel channel=connection.createChannel();
            //绑定交换机，创建队列，绑定交换机和队列
            channel.exchangeDeclare("topics", "topic");
            String queueName=channel.queueDeclare().getQueue();
            String routeKey="user.*";
            channel.queueBind(queueName, "topics", routeKey);
            channel.basicConsume(queueName, true, new DefaultConsumer(channel){
                @Override
                public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties, byte[] body) throws IOException {
                    System.out.println("消费者1"+new String(body));
                }
            });
        } catch (IOException e) {
            e.printStackTrace();
        }

    }
}

package com.baizhi.Topics;

import com.baizhi.Utils.rabbitmqUtils;
import com.rabbitmq.client.*;

import java.io.IOException;

public class Customer1 {
    public static void main(String[] args) {
        Connection connection= rabbitmqUtils.getConnection();
        try {
            Channel channel=connection.createChannel();
            //绑定交换机，创建队列，绑定交换机和队列
            channel.exchangeDeclare("topics", "topic");
            String queueName=channel.queueDeclare().getQueue();
            String routeKey="user.#";
            channel.queueBind(queueName, "topics", routeKey);
            channel.basicConsume(queueName, true, new DefaultConsumer(channel){
                @Override
                public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties, byte[] body) throws IOException {
                    System.out.println("消费者1"+new String(body));
                }
            });
        } catch (IOException e) {
            e.printStackTrace();
        }

    }
}

 测试代码，当routekey为user.save，消费者1,2 都能接受。

当routekey为user.save.delete，消费者1不能接受，消费者2可以接收

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