RabbitMQ搭建（2）-Java简单实现

一、pom引入包

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<dependency>

            <groupId>com.rabbitmq</groupId>

            <artifactId>amqp-client</artifactId>

            <version>3.6.5</version>

</dependency>

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二、创建消息发送者

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import java.io.IOException;

import java.util.concurrent.TimeoutException;

import com.rabbitmq.client.Channel;

import com.rabbitmq.client.Connection;

import com.rabbitmq.client.ConnectionFactory;

/**

* 消息生成者

*/

public class Producer {

    public final static String QUEUE_NAME = "rabbitMQ.test";

    public static void main(String[] args) throws IOException, TimeoutException {

        // 创建连接工厂

        ConnectionFactory factory = new ConnectionFactory();

        // 设置RabbitMQ相关信息

        factory.setHost("localhost");

        // factory.setUsername("guest");

        // factory.setPassword("guest");

        // factory.setPort(5672);

        // 创建一个新的连接

        Connection connection = factory.newConnection();

        // 创建一个通道

        Channel channel = connection.createChannel();

        // 声明一个队列

        // 1.String queue表示队列名称

        // 2.boolean durable是否持久化

        // 3.exclusive是否是独占队列（创建者可以使用的私有队列，断开后自动删除）

        // 4.boolean autoDelete当所有消费者客户端连接断开时是否自动删除队列

        // 5.Map<String, Object> arguments队列的其他参数

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

        String message = "Hello RabbitMQ";

        // 发送消息到队列中

        // 1.String exchange交换机名称

        // 2.String routingKey队列映射的路由key

        // 3.BasicProperties props消息的其他属性

        // 4.byte[] body发送信息的主体

        channel.basicPublish("", QUEUE_NAME, null, message.getBytes("UTF-8"));

        System.out.println("Producer Send +'" + message + "'");

        // 关闭通道和连接

        channel.close();

        connection.close();

    }

}

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三、创建消息接收者

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import java.io.IOException;

import java.util.concurrent.TimeoutException;

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;

/**

* 消息接收者

*/

public class Customer {

private final static String QUEUE_NAME = "rabbitMQ.test";

public static void main(String[] args) throws IOException, TimeoutException {

        // 创建连接工厂

        ConnectionFactory factory = new ConnectionFactory();

        // 设置RabbitMQ地址

        factory.setHost("localhost");

        // 创建一个新的连接

        Connection connection = factory.newConnection();

        // 创建一个通道

        Channel channel = connection.createChannel();

        // 声明要关注的队列

        // channel.queueDeclare(QUEUE_NAME, false, false, true, null);

        System.out.println("Customer Waiting Received messages");

        // DefaultConsumer类实现了Consumer接口，通过传入一个频道，

        // 告诉服务器我们需要那个频道的消息，如果频道中有消息，就会执行回调函数handleDelivery

        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("Customer Received '" + message + "'");

            }

        };

        // 自动回复队列应答 -- RabbitMQ中的消息确认机制

        channel.basicConsume(QUEUE_NAME, true, consumer);

    }

}

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四、测试

    1.运行Customer消息接收者开启服务

    2.运行Producer消息发送者

    3.可以看到Customer打印出Customer Received 'Hello RabbitMQ'