05-RabbitMQ控制台入门及其Java简单操作

MQ控制台简单操作

建立Exchange

新建Exchange成功

新建Queue

新建Queue成功

建立Exchange与Queue的关系

建立关系成功

路由键: 就是指发送到Exchange的消息, 通过路由键的匹配规则, 分发到指定的Queue

样例: test.*

说明: 代表该消息的发送时的路由Key必须是以test.开头, 才会被分发到queue-test这个队列

*: 代表任意

发送消息

发送成功

获取消息

获取消息成功, 获取不代表消费~

Java简单操作MQ

添加依赖

<!-- https://mvnrepository.com/artifact/com.rabbitmq/amqp-client -->
<dependency>
    <groupId>com.rabbitmq</groupId>
    <artifactId>amqp-client</artifactId>
    <version>5.15.0</version>
</dependency>

生产者

package com.dance.redis.mq.rabbit;

import com.rabbitmq.client.Channel;
import com.rabbitmq.client.Connection;
import com.rabbitmq.client.ConnectionFactory;
import com.rabbitmq.client.MessageProperties;
 
import java.io.IOException;
import java.util.concurrent.TimeoutException;
 
public class RabbitProducer {
    private static final String EXCHANGE_NAME = "exchange-test";
    private static final String ROUTING_KEY = "text.*";
    private static final String QUEUE_NAME = "queue-test";
    private static final String IP_ADDRESS = "192.168.247.142";
    private static final int PORT = 5672; //RabbitMQ服务默认端口为5672
 
    public static void main(String[] args) throws IOException,
            TimeoutException, InterruptedException {
        ConnectionFactory factory = new ConnectionFactory();
        factory.setHost(IP_ADDRESS);
        factory.setPort(PORT);
        factory.setUsername("root");
        factory.setPassword("123456");
        Connection connection = factory.newConnection();//创建连接
        Channel channel = connection.createChannel();//创建信道
        //创建一个type="topic"、持久化的、非自动删除的交换器。
        channel.exchangeDeclare(EXCHANGE_NAME, "topic", true, false, null);
        //创建一个持久化、非排他的、非自动删除的队列
        channel.queueDeclare(QUEUE_NAME, true, false, false, null);
        //将交换机与队列通过路由键绑定
        channel.queueBind(QUEUE_NAME, EXCHANGE_NAME, ROUTING_KEY);
        //发送一条持久化消息:Hello World!
        String message = "Hello World!";
        channel.basicPublish(EXCHANGE_NAME, ROUTING_KEY,
                MessageProperties.PERSISTENT_TEXT_PLAIN,
                message.getBytes());
        //关闭资源
        channel.close();
        connection.close();
    }
    
}

消费者

package com.dance.redis.mq.rabbit;

import com.rabbitmq.client.*;

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

public class Receiver {
    private static final String QUEUE_NAME = "queue-test";
    private static final String IP_ADDRESS = "192.168.247.142";
    private static final int PORT = 5672;

    public static void main(String[] args) throws IOException, TimeoutException,
            InterruptedException {
        Address[] address = new Address[]{
                new Address(IP_ADDRESS, PORT)
        };

        ConnectionFactory factory = new ConnectionFactory();
        factory.setUsername("root");
        factory.setPassword("123456");
        // 这里的连接方式与生产者的demo略有不同，注意区别。
        Connection connection = factory.newConnection(address); //创建连接
        final Channel channel = connection.createChannel();//创建信道
        channel.basicQos(64);//设置客户端最多接收未被ack的消息个数
        Consumer consumer = new DefaultConsumer(channel) {
            @Override
            public void handleDelivery(String consumerTag,
                                       Envelope envelope,
                                       AMQP.BasicProperties properties,
                                       byte[] body)
                    throws IOException {
                System.out.println("recvive message:" + new String(body));
                try {
                    TimeUnit.SECONDS.sleep(1);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
                channel.basicAck(envelope.getDeliveryTag(), false);
            }
        };
        channel.basicConsume(QUEUE_NAME, consumer);
        //等待回调函数执行完毕之后，关闭资源。
        TimeUnit.SECONDS.sleep(5);
        channel.close();
        connection.close();
    }
}