rabbitmq-topic-支持通配符的订阅模式

Posted 2021-06-10 gavin苗

生产者：

package com.gavin.mq.topic;

import com.gavin.utils.RabbitMQUtils;
import com.rabbitmq.client.Channel;
import com.rabbitmq.client.Connection;
import com.rabbitmq.client.MessageProperties;
import org.junit.Test;

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

/**
 * 路由订阅模型routing-topic模式：
 * 相比direct模式，topic模式下，routingKey可以使用通配符
 * # 匹配零个或多个词
 * * 匹配有且仅有一个词
 * audit.# 匹配audit.irs.properties 和audit.irs
 * audit.* 匹配audit.irs
 */
public class WorkProvider {
    @Test
    public void testSendMessage() throws IOException, TimeoutException {

        Connection connection = RabbitMQUtils.getConnection();
        Channel channel = connection.createChannel();
        //声明交换机 参数1：交换机名称
        channel.exchangeDeclare("logs_topic","topic");
        //routingKey为info
        channel.basicPublish("logs_topic","log.info", MessageProperties.PERSISTENT_BASIC,("hello topic").getBytes());
        RabbitMQUtils.close(channel,connection);
    }
}

　　消费者1：

package com.gavin.mq.topic;

import com.gavin.utils.RabbitMQUtils;
import com.rabbitmq.client.*;

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

public class WorkConsumer {
    public static void main(String[] args) throws IOException, TimeoutException {
        Connection connection = RabbitMQUtils.getConnection();
        Channel channel = connection.createChannel();
        channel.exchangeDeclare("logs_topic","topic");
        String tempQueue = channel.queueDeclare().getQueue();
        channel.queueBind(tempQueue,"logs_topic","log.*");
        channel.basicConsume(tempQueue,true,new DefaultConsumer(channel){
            @Override
            public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties, byte[] body) throws IOException {
                System.out.println(new String(body));
            }
        });
    }
}

　　消费者2：

package com.gavin.mq.topic;

import com.gavin.utils.RabbitMQUtils;
import com.rabbitmq.client.*;

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

public class WorkConsumer2 {
    public static void main(String[] args) throws IOException, TimeoutException {
        Connection connection = RabbitMQUtils.getConnection();
        Channel channel = connection.createChannel();
        channel.exchangeDeclare("logs_topic","topic");
        String tempQueue = channel.queueDeclare().getQueue();
        channel.queueBind(tempQueue,"logs_topic","log.#");
        channel.basicConsume(tempQueue,true,new DefaultConsumer(channel){
            @Override
            public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties, byte[] body) throws IOException {
                System.out.println("consumer2:"+new String(body));
            }
        });
    }
}