RabbitMQ初始代码

生产者

public class PublisherDemo {
    @Test
    public void testSendMessage() throws IOException, TimeoutException {
        //1.创建连接
        ConnectionFactory factory = new ConnectionFactory();
        factory.setHost("192.168.138.100");
        factory.setPort(5672);
        factory.setVirtualHost("/");
        factory.setUsername("itheima");
        factory.setPassword("itheima");
        Connection connection = factory.newConnection();
        //2.创建通道
        Channel channel = connection.createChannel();
        //3.声明交换机与队列
        /**
         * @param queue 队列名称
         * @param durable 是否持久化
         * @param exclusive 是否排它
         * @param autoDelete 是否自动删除
         * @param arguments 队列其他参数
         * @return a declaration-confirm method to indicate the queue was successfully declared
         * @throws IOException if an error is encountered
         */
        channel.queueDeclare("simple.queue", true, false, false, null);
        //4.发送消息
        /**
         * exchange 交换机，默认的交换机是""
         * routingKey 路由Key
         * props 消费其他参数
         * body 消息内容
         */
        channel.basicPublish("", "simple.queue", null, "Hello,RabbitMQ!! Two".getBytes());
        //5.释放资源
        channel.close();
        connection.close();
    }
}

消费者

 

public class ConsumerDemo {

    public static void main(String[] args) throws IOException, TimeoutException {
        //1.创建连接
        ConnectionFactory factory = new ConnectionFactory();
        factory.setHost("192.168.138.100");
        factory.setPort(5672);
        factory.setVirtualHost("/");
        factory.setUsername("itheima");
        factory.setPassword("itheima");
        Connection connection = factory.newConnection();
        //2.创建通道
        Channel channel = connection.createChannel();
        //3.声明交换机与队列
        /**
         * 如果队列已经存在，则不会重复创建
         */
        channel.queueDeclare("simple.queue", true, false, false, null);
        //4.消费消息
        channel.basicConsume("simple.queue", new DefaultConsumer(channel){
            @Override
            /**
             * consumerTag  消息标签
             * Envelope envelope  封装了消息的对象（没有内容）
             * AMQP.BasicProperties properties  其他数据
             * byte[] body  消息内容
             */
            public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties, byte[] body) throws IOException {
                System.out.println(consumerTag);
                System.out.println(envelope.getDeliveryTag());
                System.out.println(envelope.getExchange());
                System.out.println(envelope.getRoutingKey());
                System.out.println("消息内容:" + new String(body));
            }
        });
        //5.卡住
        System.in.read();
    }
}