RabbitMQ之Helloworld

pom

前提是Maven工程，用idea建

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>org.example</groupId>
    <artifactId>RabbitmqDemo</artifactId>
    <version>1.0-SNAPSHOT</version>

    <!-- RabbitMQ -->
   <dependencies>
       <dependency>
           <groupId>com.rabbitmq</groupId>
           <artifactId>amqp-client</artifactId>
           <version>4.2.1</version>
       </dependency>
   </dependencies>

</project>

　　生产者class

package Producter;

import com.rabbitmq.client.*;

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

public class RabbitProducer {
    private static final String EXCHANGE_NAME = "exchange_demo";
    private static final String ROUNTING_KEY = "rountingkey_demo";
    private static final String QUEUE_NAME = "queue_demo";
    private static final String IP_ADDRESS = "虚拟机或者windows的ip";
    /**
     * Rabbitmq默认端口
     * */
    private static final int PORT = 5672;

    public static void main(String[] args) throws IOException, TimeoutException, InterruptedException {
        ConnectionFactory factory = new ConnectionFactory();
        factory.setHost(IP_ADDRESS);
        factory.setPort(PORT);
        factory.setUsername("admin");
        factory.setPassword("admin");
        // 创建连接
        Connection connection = factory.newConnection();
        // 创建信道
        Channel channel = connection.createChannel();
        // 创建 持久化 非自动删除的交换器
        channel.exchangeDeclare(EXCHANGE_NAME,
                "direct", true, false, null);
        // 创建持久化非排他，非自动删除的队列
        channel.queueDeclare(QUEUE_NAME, true, false, false, null);
        // 交换器与队列通过路由键绑定
        channel.queueBind(QUEUE_NAME, EXCHANGE_NAME, ROUNTING_KEY);
        // send 持久化消息 helloworld！
        String message = "Hello World!";
        channel.basicPublish(EXCHANGE_NAME, ROUNTING_KEY, MessageProperties.PERSISTENT_TEXT_PLAIN, message.getBytes());
        // 关闭资源
        channel.close();
        connection.close();

    }
}

　　消费者class

package Consumer;

import com.rabbitmq.client.*;

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

public class RabbitConsumer {
    private static final String QUEUE_NAME = "queue_demo";
    private static final String IP_ADDRESS = "和上面一样";

    /**
     * Rabbitmq默认端口
     * */
    private static final int PORT = 5672;

    public static void main(String[] args) throws IOException, TimeoutException, InterruptedException {
        Address[] addresses = new Address[]{
                new Address(IP_ADDRESS, PORT)
        };
        ConnectionFactory factory = new ConnectionFactory();
        factory.setUsername("admin");
        factory.setPassword("admin");
        // 连接方式略有不同
        // 创建连接
        Connection connection = factory.newConnection(addresses);
        // 创建信道
        final Channel channel = connection.createChannel();
        // 客户端最多接受未被ack的消息个数
        channel.basicQos(64);
        Consumer consumer = new DefaultConsumer(channel) {
            @Override
            public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties, byte[] body) throws IOException {
                System.out.println("recv message: " + new String(body));
                try {
                    TimeUnit.SECONDS.sleep(1);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
                channel.basicAck(envelope.getDeliveryTag(), false);
            }
        };
        channel.basicConsume(QUEUE_NAME, consumer);
        TimeUnit.SECONDS.sleep(5);
        channel.close();
        connection.close();

    }

}