RabbitMQ的HelloWorld模型之消费消息

public class Customer {

    public static void main(String[] args) throws IOException, TimeoutException {

        //创建链接mq的连接工厂对象
        ConnectionFactory connectionFactory = new ConnectionFactory();
        //设置连接rabbitmq主机
        connectionFactory.setHost("192.168.121.200");
        //设置端口号
        connectionFactory.setPort(5672);
        //设置连接哪个虚拟主机
        connectionFactory.setVirtualHost("/zhbj");
        //设置访问虚拟主机的用户名和密码
        connectionFactory.setUsername("guest");
        connectionFactory.setPassword("guest");
        //获取连接对象
        Connection connection = connectionFactory.newConnection();
        //获取连接中通道
        final Channel channel = connection.createChannel();
        //通道绑定对应消息队列
        //参数1:队列名称,如果队列不存在自动创建
        //参数2:用来定义队列特性是否需要持久化,true为持久化,false为不持久化
        //参数3:exclusive,是否独占队列,true为独占队列,false为不独占
        //参数4:autoDelete:是否在消费完成后自动删除队列,true为自动删除,false为不自动删除
        //参数5:额外附加参数
        channel.queueDeclare("hello",false,false,false,null);
        //消费消息
        //参数1:交换机名称,参数2:队列名称,参数3:传递消息额外设置,参数4:消息的具体内容
        channel.basicConsume("hello",false,new DefaultConsumer(channel){
            /**
             * No-op implementation of {@link Consumer#handleDelivery}.
             *
             * @param consumerTag
             * @param envelope
             * @param properties
             * @param body
             */
            @Override
            public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties, byte[] body) throws IOException {
                try {
                    TimeUnit.SECONDS.sleep(5);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
                System.out.println("new String(body)="+new String(body));
                channel.basicAck(envelope.getDeliveryTag(),false);

            }
        });
        //channel.close();
        //connection.close();
    }
}
posted @ 2020-11-21 09:11  xl4ng  阅读(92)  评论(0编辑  收藏  举报