《RabbitMQ系列教程-第四章-05-RabbitMQ工作模式之Topics主题模式》_rabbitmq新思维第四章第五节

green.green.green 3/4 green.red.green 3

red.#.green red.green.* #.green *.green.#

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> Topics模式官网介绍：https://www.rabbitmq.com/tutorials/tutorial-five-java.html

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> 

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#### 4.5.2 生产者

package com.lscl.rabbitmq;

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

public class Producer05_Topic {

public static void main(String[] args) throws Exception {
    // 创建连接工厂,用于获取频道channel
    ConnectionFactory factory = new ConnectionFactory();

    factory.setHost("192.168.40.132");
    factory.setPort(5672);
    factory.setUsername("lscl");
    factory.setPassword("admin");
    factory.setVirtualHost("/lscl");

    // 2.创建连接
    Connection connection = factory.newConnection();

    // 3.创建频道
    Channel channel = connection.createChannel();

    String exchangeName = "test\_topic";

    //5. 创建交换机
    channel.exchangeDeclare(exchangeName, BuiltinExchangeType.TOPIC,true,false,false,null);

    //6. 创建队列
    String queue1Name = "test\_topic\_queue1";
    String queue2Name = "test\_topic\_queue2";
    String queue3Name = "test\_topic\_queue3";
    String queue4Name = "test\_topic\_queue4";

    channel.queueDeclare(queue1Name,true,false,false,null);
    channel.queueDeclare(queue2Name,true,false,false,null);
    channel.queueDeclare(queue3Name,true,false,false,null);
    channel.queueDeclare(queue4Name,true,false,false,null);

    //7. 绑定队列和交换机
    channel.queueBind(queue1Name,exchangeName,"red.#.green");
    channel.queueBind(queue2Name,exchangeName,"red.green.\*");
    channel.queueBind(queue3Name,exchangeName,"#.green");
    channel.queueBind(queue4Name,exchangeName,"\*.green.#");

    String body = "topic....";
    //8. 发送消息
    /\*

red.green.green 1/2/3/4 green.green 3/4 green.red.blue green.green.green 3/4 green.red.green 3

red.#.green red.green.* #.green *.green.# */ // channel.basicPublish(exchangeName,"red.green.green",null,body.getBytes()); // channel.basicPublish(exchangeName,"green.green",null,body.getBytes()); // channel.basicPublish(exchangeName,"green.red.blue",null,body.getBytes()); // channel.basicPublish(exchangeName,"green.green.green",null,body.getBytes()); channel.basicPublish(exchangeName,"green.red.green",null,body.getBytes());

    //9. 释放资源
    channel.close();
    connection.close();
}

}

#### 4.5.3 消费者-1

package com.lscl.rabbitmq;

import com.rabbitmq.client.*;

import java.io.IOException;

public class Consumer07_Topic_01 {

public static void main(String[] args) throws Exception{
    // 创建连接工厂,用于获取频道channel
    ConnectionFactory factory=new ConnectionFactory();

    factory.setHost("192.168.40.132");
    factory.setPort(5672);
    factory.setUsername("lscl");
    factory.setPassword("admin");
    factory.setVirtualHost("/lscl");

    // 2.创建连接
    Connection connection = factory.newConnection();

    // 3.创建频道
    Channel channel = connection.createChannel();

    // 定义队列
    String queueName="test\_topic\_queue1";
    channel.queueDeclare(queueName,true,false,false,null);

    Consumer consumer = new DefaultConsumer(channel){

        @Override
        public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties, byte[] body) throws IOException {

            System.out.println("body："+new String(body));
        }
    };

    // 接受queue的消息
    channel.basicConsume(queueName,true,consumer);

    // 不释放资源,让rabbitmq一直监听
}

}

#### 4.5.4 消费者-2


和消费者-1代码一样，只是队列名换了

String queueName="test_topic_queue2";

#### 4.5.5 消费者-3


和消费者-1代码一样，只是队列名换了

String queueName="test_topic_queue3";

#### 4.5.6 消费者-4


和消费者-1代码一样，只是队列名换了

String queueName="test_topic_queue4";