微信公众号搜"智元新知"关注
微信扫一扫可直接关注哦!

Kafka回调函数

Controller

    /**
     * 回调方法中监控消息是否发送成功 或 失败时做补偿处理
     */
    @GetMapping("/callback/{message}")
    public String sendMessageCallback(@PathVariable("message") String callbackMessage) {
        kafkaProducer.sendMessageCallback(callbackMessage);
        return "niu bi a";
    }

Service :kafka producer

    /**
     * callback
     */
    public void sendMessageCallback(String callbackMessage) {
        kafkaTemplate.send("topic1", callbackMessage).addCallback(new ListenableFutureCallback<SendResult<String, Object>>() {
            @Override
            public void onFailure(Throwable ex) {
                System.out.println("发送消息失败:" + ex.getMessage());
            }
            @Override
            public void onSuccess(SendResult<String, Object> result) {
                System.out.println("发送消息成功:" + result.getRecordMetadata().topic() + "-"
                        + result.getRecordMetadata().partition() + "-" + result.getRecordMetadata().offset());
            }
        });
    }
}

消费者:

@Service
public class KafkaConsumer3 {
    @KafkaListener(topics = "topic1", groupId = KafkaConstants.KAFKA_GROUP_ID_THREE)
    public void receivetopicmessage(String message) {
        System.out.println("KafkaConsumer3 ---> receivetopicmessage:接收消息,内容为:" + message);
    }
}

结果:

image

=====

image

版权声明:本文内容由互联网用户自发贡献,该文观点与技术仅代表作者本人。本站仅提供信息存储空间服务,不拥有所有权,不承担相关法律责任。如发现本站有涉嫌侵权/违法违规的内容, 请发送邮件至 dio@foxmail.com 举报,一经查实,本站将立刻删除。

相关推荐