RabbitMQ Fanout类型交换机

Fanout类型交换机忽略Routing Key，它将消息传递到所有与它绑定的队列上。

消息生产者

package com.test.fanout;

import com.rabbitmq.client.*;

import java.io.IOException;
import java.lang.String;
import java.lang.System;
import java.util.HashMap;
import java.util.Map;
import java.util.Scanner;

public class Producer {

	public static void main(String[] args) throws Exception {
		//使用默认端口连接MQ
		ConnectionFactory factory = new ConnectionFactory();
		factory.setUsername("admin");
		factory.setPassword("admin");
		factory.setHost("192.168.169.142"); //使用默认端口5672
		Connection conn = factory.newConnection(); //声明一个连接
		Channel channel = conn.createChannel(); //声明消息通道

		String message = "hello world!";
		String queueName1 = "queue_fanout1";
		String queueName2 = "queue_fanout2";
		String queueName3 = "queue_fanout3";
		String exchangeName = "test.fanout";
		//Routing Key
		channel.queueDeclare(queueName1, false, false, false, null);
		channel.queueDeclare(queueName2, false, false, false, null);
		channel.queueDeclare(queueName3, false, false, false, null);
		channel.exchangeDeclare(exchangeName, "fanout", false, false, null);

		channel.queueBind(queueName1, exchangeName, "");
		channel.queueBind(queueName2, exchangeName, "");
		channel.queueBind(queueName3, exchangeName, "");

		channel.basicPublish(exchangeName, "",
		MessageProperties.TEXT_PLAIN, message.getBytes());

		System.out.println("Message \"" + message + "\" sent successfully.");

		channel.close();
		conn.close();
	}

}

消息消费者

package com.test.fanout;
import com.rabbitmq.client.AMQP.BasicProperties;
import com.rabbitmq.client.Channel;
import com.rabbitmq.client.Connection;
import com.rabbitmq.client.ConnectionFactory;
import com.rabbitmq.client.Envelope;
import com.rabbitmq.client.QueueingConsumer;
import com.rabbitmq.client.ShutdownSignalException;

import java.io.IOException;
import java.util.HashMap;
import java.util.Map;

//通过channel.basicAck向服务器发送回执,删除服务上的消息
public class Consumer implements com.rabbitmq.client.Consumer{
	private Channel channel;

	public static void main(String[] args) throws Exception {
		//使用默认端口连接MQ
		ConnectionFactory factory = new ConnectionFactory();
		factory.setUsername("admin");
		factory.setPassword("admin");
		factory.setHost("192.168.169.142"); //使用默认端口5672
		Connection conn = factory.newConnection(); //声明一个连接
		Channel channel = conn.createChannel(); //声明消息通道

		String queueName = args[0];//"queue_fanout1";

		channel.queueDeclare(queueName, false, false, false, null);

		Consumer consumer = new Consumer();
		consumer.channel = channel;

		channel.basicConsume(queueName, false, consumer);
	}

	@Override
	public void handleConsumeOk(String consumerTag) {
		// TODO Auto-generated method stub
		System.out.println("Consumer \"" + consumerTag + "\" has subscribed.");
	}

	@Override
	public void handleCancelOk(String consumerTag) {
		// TODO Auto-generated method stub
	}

	@Override
	public void handleCancel(String consumerTag) throws IOException {
		// TODO Auto-generated method stub
	}

	@Override
	public void handleDelivery(String consumerTag, Envelope env,
	BasicProperties props, byte[] body) throws IOException {
		// TODO Auto-generated method stub
		System.out.println("Message \"" + new String(body) + "\" received.");
		channel.basicAck(env.getDeliveryTag(), false);
	}

	@Override
	public void handleShutdownSignal(String consumerTag, ShutdownSignalException sig) {
		// TODO Auto-generated method stub
	}

	@Override
	public void handleRecoverOk(String consumerTag) {
		// TODO Auto-generated method stub
	}
}