RabbitMQ|RabbitMQ 创建生产者与消费者 RabbitMQ|rabbitmq

创建生产者步骤

创建工厂 connectionFactory
获取连接
通过connection创建一个channel
发布消息
4.1. 指定 exchange（交换机）
4.2. 指定 routing key（路由规则，路由到哪一个queue）

import com.rabbitmq.client.Channel; import com.rabbitmq.client.Connection; import com.rabbitmq.client.ConnectionFactory; import java.io.IOException; import java.util.concurrent.TimeoutException; /** * @author wx * @date 2021-01-10 */ public class producer {public static void main(String[] args) throws IOException, TimeoutException {//1.创建工厂 ConnectionFactory connectionFactory = new ConnectionFactory(); connectionFactory.setHost("localhost"); connectionFactory.setPort(5672); connectionFactory.setUsername("guest"); connectionFactory.setPassword("guest"); //2.获取连接 Connection connection = connectionFactory.newConnection(); //3.通过connection创建一个channel Channel chennel = connection.createChannel(); //4.发布消息 for(int i = 0; i < 5; i++){String msg = "hello rabbitmq"; //1.exchange2.routing key //默认交换器隐式绑定到每个队列，其路由键等于队列名. 如果没有队列名,则会被删除 chennel.basicPublish("", "test001", null, msg.getBytes()); } chennel.close(); connection.close(); } }

创建消费者步骤

创建工厂 connectionFactory
获取连接
通过connection创建一个channel
声明一个队列（queue）
创建消费者
设置channel
获取消息

import com.rabbitmq.client.*; import javax.security.auth.callback.Callback; import java.io.IOException; import java.util.concurrent.TimeoutException; /** * @author wx * @date 2021-01-10 */ public class Consumer {public static void main(String[] args) throws IOException, TimeoutException, InterruptedException {//1,创建工厂 ConnectionFactory connectionFactory = new ConnectionFactory(); connectionFactory.setHost("localhost"); connectionFactory.setPort(5672); connectionFactory.setUsername("guest"); connectionFactory.setPassword("guest"); //2,获取连接 Connection connection = connectionFactory.newConnection(); //3,通过connection创建一个channel Channel channel = connection.createChannel(); //4,声明一个队列 String queueName = "test001"; channel.queueDeclare(queueName, true, false, false, null); //5,创建消费者// QueueingConsumer queueingConsumer = new QueueingConsumer(channel); //6,设置channel channel.basicConsume(queueName, true, queueingConsumer); //7,获取消息 while (true){QueueingConsumer.Delivery delivery = queueingConsumer.nextDelivery(); String msg = new String(delivery.getBody()); System.out.println(msg); } } }