RabbitMQ简单队列模式

简单队列模式

红色：队列
P：消息的生产者
C：消息的消费者
这里写图片描述
生产者，将消息发送到队列
消费者，从队列中获取消息

配置依赖

导入RabbitMQ客户端依赖

<dependency>
    <groupId>com.rabbitmq</groupId>
    <artifactId>amqp-client</artifactId>
    <version>3.4.1</version>
</dependency>

ConnectionUtil

获取连接

package cn.itcast.rabbitmq.util;

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

public class ConnectionUtil {

    public static Connection getConnection() throws Exception {
        // 定义连接工厂
        ConnectionFactory factory = new ConnectionFactory();
        // 设置服务地址
        factory.setHost("localhost");
        // 端口
        factory.setPort(5672);
        // 设置账号信息，用户名、密码、vhost
        factory.setVirtualHost("/taotao");
        factory.setUsername("taotao");
        factory.setPassword("taotao");
        // 通过工程获取连接
        Connection connection = factory.newConnection();
        return connection;
    }

}

Send

发送者

package cn.itcast.rabbitmq.simple;

import cn.itcast.rabbitmq.util.ConnectionUtil;

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

public class Send {

    private final static String QUEUE_NAME = "test_queue";

    public static void main(String[] argv) throws Exception {
        // 获取到连接以及mq通道
        Connection connection = ConnectionUtil.getConnection();
        // 从连接中创建通道
        Channel channel = connection.createChannel();

        // 声明（创建）队列
        channel.queueDeclare(QUEUE_NAME, false, false, false, null);

        // 消息内容
        String message = "Hello World!";
        channel.basicPublish("", QUEUE_NAME, null, message.getBytes());
        System.out.println(" [x] Sent '" + message + "'");

        //关闭通道和连接
        channel.close();
        connection.close();
    }
}

Recv

接收者

package cn.itcast.rabbitmq.simple;

import cn.itcast.rabbitmq.util.ConnectionUtil;

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

public class Recv {

    private final static String QUEUE_NAME = "test_queue";

    public static void main(String[] argv) throws Exception {

        // 获取到连接以及mq通道
        Connection connection = ConnectionUtil.getConnection();
        Channel channel = connection.createChannel();

        // 声明队列
        channel.queueDeclare(QUEUE_NAME, false, false, false, null);

        // 定义队列的消费者
        QueueingConsumer consumer = new QueueingConsumer(channel);
        // 监听队列
        channel.basicConsume(QUEUE_NAME, true, consumer);

        // 获取消息
        while (true) {
            QueueingConsumer.Delivery delivery = consumer.nextDelivery();
            String message = new String(delivery.getBody());
            System.out.println(" [x] Received '" + message + "'");
        }
    }
}