rabbitMQ简单开发

 

 

maven引入依赖

<dependency>

    <groupId>com.rabbitmq</groupId>

    <artifactId>amqp-client</artifactId>

    <version>5.3.0</version>

</dependency>

 

 

 

创建生产者

 

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

import com.rabbitmq.client.Channel;
import com.rabbitmq.client.Connection;
import com.rabbitmq.client.ConnectionFactory;
import com.rabbitmq.client.MessageProperties;

public class RabbitProducer {
    private static final String EXCHANGE_NAME = "exchange1"; // 交换器名称
    private static final String ROUTING_KEY = "routingkey1"; // 路由key
    private static final String QUEUE_NAME = "queue1";      // 队列名称
    private static final String IP_ADDRESS = "192.168.2.10";
    private static final int PORT = 5672;                   // RabbitMQ服务端默认端口号为5672
   
    public static void main(String[] args) throws IOException, TimeoutException {
        ConnectionFactory factory = new ConnectionFactory(); // rabbitmq连接工厂
        factory.setHost(IP_ADDRESS);
        factory.setPort(PORT);
        factory.setUsername("root");
        factory.setPassword("888888");
        Connection connection = factory.newConnection();    // 建立连接
        Channel channel = connection.createChannel();       // 创建信道

        channel.exchangeDeclare(EXCHANGE_NAME, "direct", true, false, null);    // 创建一个type="direct"、持久化的、非自动删除的交换器
        channel.queueDeclare(QUEUE_NAME, true, false, false, null);             // 创建一个持久化、非排他的、非自动删除的队列
        channel.queueBind(QUEUE_NAME, EXCHANGE_NAME, ROUTING_KEY);              // 将交换器和队列通过路由绑定
        String message = "hello,world!";                                        // 发送一条持久化的消息：hello world!
        channel.basicPublish(EXCHANGE_NAME, ROUTING_KEY, MessageProperties.PERSISTENT_TEXT_PLAIN,  message.getBytes());
        channel.close();    // 关闭资源
        connection.close();
    }
}

运行之后：

 

 

消费者

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

import com.rabbitmq.client.AMQP;
import com.rabbitmq.client.Address;
import com.rabbitmq.client.Channel;
import com.rabbitmq.client.ConnectionFactory;
import com.rabbitmq.client.Consumer;
import com.rabbitmq.client.DefaultConsumer;
import com.rabbitmq.client.Envelope;
import com.rabbitmq.client.Connection;

public class RabbitConsumer {
    private static final String QUEUE_NAME = "queue1";
    private static final String IP_ADDRESS = "192.168.2.10";
    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("root");
        factory.setPassword("888888");

        // 这里的连接方式与生产者的demo略有不同，注意区分
        Connection connection = factory.newConnection(addresses);   // 创建连接
        final Channel channel = connection.createChannel();         // 创建信道
        channel.basicQos(64);                                       // 设置客户端最多接受未被ack的消息的个数
        Consumer consumer = new DefaultConsumer(channel) {
            @Override
            public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties, byte[] body) throws IOException {
                System.out.println("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);   // 等待回调函数执行完毕后，关闭资源
        channel.close();
        connection.close();
    }
}

 

运行后：