rabbitmq之消息分发策略

九转成圣

发布于 2024-04-10 18:21:45

590

发布于 2024-04-10 18:21:45

文章被收录于专栏：csdncsdn

rabbitmq之消息分发策略

默认为轮训

公平分发

公平分发也就是能者多劳

配置

# spring.rabbitmq.listener.simple.acknowledge-mode=manual
spring.rabbitmq.listener.simple.prefetch=1

spring.rabbitmq.listener.simple.acknowledge-mode=manual应该是全局手动ack,可以改成方法级别的

@RabbitListener(queues = Constant.ACK_ACK_QUEUE, ackMode = "MANUAL")

消费者1

@RabbitListener(queues = Constant.ACK_ACK_QUEUE, ackMode = "MANUAL")
@RabbitHandler
public void ackAckReceiver(@NotNull Message message, Channel channel) {
    try {
        byte[] body = message.getBody();
        log.info("basicAck 收到的消息为: " + new String(body));
        int time = 1 * 1000;
        log.info("开始消费消息:{},耗时{}秒,", DateUtil.Date2LongtString(new Date()), time/1000);
        Thread.sleep(time);
        long deliveryTag = message.getMessageProperties().getDeliveryTag();
        // channel.basicAck 如果不ack 下次重启的时候就会重新受到消息
        channel.basicAck(deliveryTag, false);
        log.info("basicAck ack完毕 deliveryTag:{},时间:{}:", deliveryTag, DateUtil.Date2LongtString(new Date()));
    } catch (Exception e) {
        log.info("消息签收失败", e);
    }
}

消费者2

@RabbitListener(queues = Constant.ACK_ACK_QUEUE, ackMode = "MANUAL")
@RabbitHandler
public void ackAckReceiver(@NotNull Message message, Channel channel) {
    try {
        byte[] body = message.getBody();
        log.info("basicAck 收到的消息为: " + new String(body));
        int time = 10 * 1000;
        log.info("开始消费消息:{},耗时{}秒,", DateUtil.Date2LongtString(new Date()), time/1000);
        Thread.sleep(time);
        long deliveryTag = message.getMessageProperties().getDeliveryTag();
        // channel.basicAck 如果不ack 下次重启的时候就会重新受到消息
        channel.basicAck(deliveryTag, false);
        log.info("basicAck ack完毕 deliveryTag:{},时间:{}:", deliveryTag, DateUtil.Date2LongtString(new Date()));
    } catch (Exception e) {
        log.info("消息签收失败", e);
    }
}

ps:spring.rabbitmq.listener.simple.prefetch=1应该也可以改成方法级别,不知道怎么设置

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原始发表：2024-03-19，如有侵权请联系 cloudcommunity@tencent.com 删除

配置