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一、前言

开发时经常与其它系统用rabbitmq对接，当需要自测时，还是自己写rabbitmq生产者、消费者自测方便些。

下面总结下不用框架、使用java编写简易rabbitmq的方法。

二、代码

1.导入jar包

(1)如果是maven，那就用

<dependency><groupId>com.rabbitmq</groupId><artifactId>amqp-client</artifactId><version>3.3.4</version></dependency>

(2)如果没用maven，那就找一个amqp-client-3.3.4.jar文件，然后引入项目

2.生产者代码

package RABBIT_MQ;import com.rabbitmq.client.*;import java.io.IOException;
import java.util.concurrent.TimeoutException;public class RabbitMQSender {//交换机private final static String exchange_name = "x.mySys.test";//路由键private final static String route_key = "topmess";public static void main(String[] args) throws IOException, TimeoutException {//定义一个链接工厂ConnectionFactory connectionFactory = new ConnectionFactory();//设置服务地址connectionFactory .setHost("10.123.123.123");//设定端口connectionFactory .setPort(5673);//设定用户名connectionFactory .setUsername("myuser");//设定密码connectionFactory .setPassword("mypass");//设定虚拟机connectionFactory .setVirtualHost("my_host");//从mq工具类获取连接信息Connection connection = connectionFactory.newConnection();//获取一个通道Channel channel = connection.createChannel();String message = "Hello World!";channel.basicPublish(exchange_name, route_key, null, message.getBytes());System.out.println("运行完毕，已发送消息【" + message + "】");channel.close();connection.close();}}

说明：
(1)其中的配置，按照自己的rabbitmq配置更改
(2)生产者配置了交换机名与路由键

3.消费者代码

package RABBIT_MQ;import java.io.IOException;
import java.util.concurrent.TimeoutException;import com.rabbitmq.client.AMQP;
import com.rabbitmq.client.Channel;
import com.rabbitmq.client.Connection;
import com.rabbitmq.client.ConnectionFactory;
import com.rabbitmq.client.DefaultConsumer;
import com.rabbitmq.client.Envelope;public class RabbitMQReceiver {private static String queue_name="q.mySys.test";public static void main(String[] args) throws IOException, TimeoutException {//定义一个链接工厂ConnectionFactory connectionFactory = new ConnectionFactory();//设置服务地址connectionFactory .setHost("10.123.123.123");//设定端口connectionFactory .setPort(5673);//设定用户名connectionFactory .setUsername("myuser");//设定密码connectionFactory .setPassword("mypass");//设定虚拟机connectionFactory .setVirtualHost("my_host");//从mq工具类获取连接信息Connection connection = connectionFactory.newConnection();//获取一个通道Channel channel = connection.createChannel();//监听该队列，false代表手动确认channel.basicConsume(queue_name,false,new DefaultConsumer(channel){public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties basicProperties, byte[] body) throws IOException{System.out.println("接收到的消息："+ new String(body,"UTF-8"));}});System.out.println("运行完毕，等待mq接收消息");}}

说明：
(1)其中的配置，按照自己的rabbitmq配置更改
(2)消费者配置了监听队列
(3)消费者启动后一直开启，除非手动关闭项目运行