RabbitMQ---Direct模型

Provice

public class Provider {
    public static void main(String[] args) throws IOException {
        //获取连接对象
        Connection connection = RabbitMQUtil.getConnection();
        //获取通道对象
        Channel channel = connection.createChannel();
        //通过通道声明交换机  参数1：交换机名称 参数2：交换机类型 direct 路由模式
        channel.exchangeDeclare("logs_direct","direct");
        //发送消息
        String routingKey = "error";
        channel.basicPublish("logs_direct",routingKey,null,"发布的消息".getBytes(StandardCharsets.UTF_8));
        RabbitMQUtil.closeAll(channel,connection);
    }
}

设计了一个日志的情景，info、warning、error三个日志等级都需要被打印，但是仅仅将error作磁盘持久化

Consumer1（持久化）

public class Consumer1 {
    public static void main(String[] args) throws IOException {
        String exchangeName = "logs_direct";
        Connection connection = RabbitMQUtil.getConnection();
        Channel channel = connection.createChannel();
        //通道绑定交换机
        channel.exchangeDeclare(exchangeName,"direct");
        //临时队列
        String queue = channel.queueDeclare().getQueue();
        //绑定交换机和队列
        channel.queueBind(queue,exchangeName,"error");
        //消费消息
        channel.basicConsume(queue,true,new DefaultConsumer(channel){
            @Override
            public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties, byte[] body) throws IOException {
                System.out.println("存储到磁盘："+ new String(body));
            }
        });
    }
}

Consumer2(打印输出)

public class Consumer2 {
    public static void main(String[] args) throws IOException {
        String exchangeName = "logs_direct";
        Connection connection = RabbitMQUtil.getConnection();
        Channel channel = connection.createChannel();
        channel.exchangeDeclare(exchangeName,"direct");
        String queue = channel.queueDeclare().getQueue();
        //临时队列和交换机绑定
        channel.queueBind(queue,exchangeName,"info");
        channel.queueBind(queue,exchangeName,"error");
        channel.queueBind(queue,exchangeName,"warning");
        channel.basicConsume(queue,true,new DefaultConsumer(channel){
            @Override
            public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties, byte[] body) throws IOException {
                System.out.println("打印："+new String(body));
            }
        });
    }
}