RabbitMQ HelloWorld 示例

Maven依赖

 <dependency>
       <groupId>com.rabbitmq</groupId>
       <artifactId>amqp-client</artifactId>
       <version>5.14.0</version>
</dependency>

生产端代码

package org.ysy.study.rabbitmq;

import com.rabbitmq.client.AMQP;
import com.rabbitmq.client.Channel;
import com.rabbitmq.client.Connection;
import com.rabbitmq.client.ConnectionFactory;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.util.Map;

/**
 * Desc: HelloWorldSender
 * Created ysy on 2021/12/29 15:30.
 */
public class HelloWorldSender {
    private static Logger logger = LoggerFactory.getLogger(HelloWorldSender.class);

    public static void main(String args[]) throws Exception {
        ConnectionFactory factory = new ConnectionFactory();
        factory.setHost("localhost");
        try (Connection connection = factory.newConnection();
             Channel channel = connection.createChannel()) {
            String queue = "HelloWorld";
            boolean durable = false;
            boolean exclusive = false;
            boolean autoDelete = false;
            Map<String, Object> arguments = null;
            channel.queueDeclare(queue, durable, exclusive, autoDelete, arguments);

            String message = "hello world " + System.currentTimeMillis();

            String exchange = "";
            String routingKey = queue;
            AMQP.BasicProperties props = null;
            byte[] body = message.getBytes();
            channel.basicPublish(exchange, routingKey, props, body);

            logger.info("发送消息 ： {}", message);
        }
    }
}

运行输出日志：

16:16:09.835 [main] INFO org.ysy.study.rabbitmq.HelloWorldSender - 发送消息 ： hello world 1640765769832

消费端代码

package org.ysy.study.rabbitmq;

import com.rabbitmq.client.Channel;
import com.rabbitmq.client.Connection;
import com.rabbitmq.client.ConnectionFactory;
import com.rabbitmq.client.DeliverCallback;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.util.Map;

/**
 * Desc: HelloWorldReceiver
 * Created ysy on 2021/12/29 15:49.
 */
public class HelloWorldReceiver {
    private static Logger logger = LoggerFactory.getLogger(HelloWorldReceiver.class);

    public static void main(String args[]) throws Exception {
        ConnectionFactory factory = new ConnectionFactory();
        factory.setHost("localhost");
        Connection connection = factory.newConnection();
        Channel channel = connection.createChannel();
        String queue = "HelloWorld";
        boolean durable = false;
        boolean exclusive = false;
        boolean autoDelete = false;
        Map<String, Object> arguments = null;
        channel.queueDeclare(queue, durable, exclusive, autoDelete, arguments);
        DeliverCallback deliverCallback = (consumerTag, delivery) -> {
            String message = new String(delivery.getBody(), "UTF-8");
            logger.info("收到消息 {}", message);
        };
        channel.basicConsume(queue, true, deliverCallback, consumerTag -> {
        });
        logger.info("开始监听消息。。。");


    }
}

输出日志

16:17:16.787 [main] INFO org.ysy.study.rabbitmq.HelloWorldReceiver - 开始监听消息。。。
16:17:16.796 [pool-1-thread-4] INFO org.ysy.study.rabbitmq.HelloWorldReceiver - 收到消息 hello world 1640765769832