rabbitmq入门(二)

1.引入依赖

    compile group: 'com.rabbitmq', name: 'amqp-client', version: '5.6.0'

2.生产者


/**
 * @program: rabbitmq
 * @description:
 * @author: Jhon_Li
 * @create: 2019-04-12 16:47
 **/
public class RabbitProducer {

    private final static String EXCHANGE_NAME = "exchange demo";
    private final static String ROUTING_KEY = "routingkey demo";
    private final static String QUEUE_NAME = "queue demo";
    private final static String IP_ADDRESS = "127.0.0.1";
    private final static int PORT = 5672;//RabbitMQ 服务端默认端口号为 5672

    public static void main(String[] args) throws IOException, TimeoutException, InterruptedException {
        ConnectionFactory factory = new ConnectionFactory();
        factory.setHost(IP_ADDRESS);
        factory.setPort(PORT);
        factory.setUsername("guest");
        factory.setPassword("guest");
        Connection connection = factory.newConnection();//创建连接
        Channel channel = connection.createChannel();//创建信道
        //创建一个 type="direct"、持久化的、非自动删除的交换器
        channel.exchangeDeclare(EXCHANGE_NAME, "direct", 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);
        //将交换器与队列通过路由键绑定
        channel.queueBind(QUEUE_NAME, EXCHANGE_NAME, ROUTING_KEY);
        //发送一条持久化的消息: 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();
    }

}

3.消费者


/**
 * @program: rabbitmq
 * @description:
 * @author: Jhon_Li
 * @create: 2019-04-12 17:00
 **/
public class RabbitmqConsumer {
    private static final String QUEUE_NAME = "queue demo";
    private static final String IP_ADDRESS = "127.0.0.1";
    private static final int PORT = 5672;

    public static void main(String[] args) throws Exception {
        Address[] addresses = new Address[]{new Address(IP_ADDRESS, PORT)};
        ConnectionFactory factory = new ConnectionFactory();
        factory.setUsername("guest");
        factory.setPassword("guest");
//这里的连接方式与生产者的 demo 略有不同 , 注意辨别区别
        Connection connection = factory.newConnection(addresses);
        //创建连接
        final Channel channel = connection.createChannel();//创建信道
        channel.basicQos(64); //设置客户端最多接收未被 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);
        //等待回调函数执行完毕之后 , 关闭资源
        TimeUnit.SECONDS . sleep(5);
        channel . close();
        connection .close();
    }
}

 

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