RabbitMQ Topics

消息生产者

package com.gch.rabbit.topic;

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

public class TopicSend {

    private static final String EXCHANGE_NAME = "topic_logs";

    public static void main(String[] argv) {
        Connection connection = null;
        Channel channel = null;
        try {
            ConnectionFactory factory = new ConnectionFactory();
            factory.setHost("localhost");

            connection = factory.newConnection();
            channel = connection.createChannel();
            //声明一个匹配模式的交换器
            channel.exchangeDeclare(EXCHANGE_NAME, "topic");

            // 待发送的消息
            String[] routingKeys = new String[]{"quick.orange.rabbit",
                "lazy.orange.elephant","quick.orange.fox","lazy.brown.fox",
                "quick.brown.fox","quick.orange.male.rabbit","lazy.orange.male.rabbit"};
            //发送消息
            for(String severity : routingKeys){
                String message = "发送路由字段："+severity;
                channel.basicPublish(EXCHANGE_NAME, severity, null, message.getBytes());
                System.out.println("匹配交换器发送" + severity + "，" + message);
            }

        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            if (connection != null) {
                try {
                    connection.close();
                } catch (Exception ignore) {
                }
            }
        }
    }

}

1号消息消费者

package com.gch.rabbit.topic;

import com.rabbitmq.client.AMQP;
import com.rabbitmq.client.Channel;
import com.rabbitmq.client.Connection;
import com.rabbitmq.client.ConnectionFactory;
import com.rabbitmq.client.Consumer;
import com.rabbitmq.client.DefaultConsumer;
import com.rabbitmq.client.Envelope;
import java.io.IOException;

public class ReceiveLogsTopic1 {

    private static final String EXCHANGE_NAME = "topic_logs";

    public static void main(String[] argv) throws Exception {
        ConnectionFactory factory = new ConnectionFactory();
        factory.setHost("localhost");
        Connection connection = factory.newConnection();
        Channel channel = connection.createChannel();
        //声明一个匹配模式的交换器
        channel.exchangeDeclare(EXCHANGE_NAME, "topic");
        String queueName = channel.queueDeclare().getQueue();
        //路由关键字
        String[] routingKeys = new String[]{"*.orange.*"};
        //绑定路由关键字
        for (String bindingKey : routingKeys) {
            channel.queueBind(queueName, EXCHANGE_NAME, bindingKey);
            System.out.println("1号匹配交换器接："+EXCHANGE_NAME+", 队列："+queueName+", 绑定路由：" + bindingKey);
        }

        System.out.println("1号匹配交换器接正在等待消息...");

        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("1号匹配交换器收到消息：" + envelope.getRoutingKey() + "，" + message);
            }
        };
        channel.basicConsume(queueName, true, consumer);
    }

}

2号消息消费者

package com.gch.rabbit.topic;

import com.rabbitmq.client.AMQP;
import com.rabbitmq.client.Channel;
import com.rabbitmq.client.Connection;
import com.rabbitmq.client.ConnectionFactory;
import com.rabbitmq.client.Consumer;
import com.rabbitmq.client.DefaultConsumer;
import com.rabbitmq.client.Envelope;
import java.io.IOException;

public class ReceiveLogsTopic2 {

    private static final String EXCHANGE_NAME = "topic_logs";

    public static void main(String[] argv) throws Exception {
        ConnectionFactory factory = new ConnectionFactory();
        factory.setHost("localhost");
        Connection connection = factory.newConnection();
        Channel channel = connection.createChannel();
        //声明一个匹配模式的交换器
        channel.exchangeDeclare(EXCHANGE_NAME, "topic");
        String queueName = channel.queueDeclare().getQueue();
        //路由关键字
        String[] routingKeys = new String[]{"*.*.rabbit", "lazy.#"};
        //绑定路由关键字
        for (String bindingKey : routingKeys) {
            channel.queueBind(queueName, EXCHANGE_NAME, bindingKey);
            System.out.println("2号匹配交换器接："+EXCHANGE_NAME+", 队列："+queueName+", 绑定路由：" + bindingKey);
        }

        System.out.println("2号匹配交换器接正在等待消息...");

        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("1号匹配交换器收到消息：" + envelope.getRoutingKey() + "，" + message);
            }
        };
        channel.basicConsume(queueName, true, consumer);
    }

}