如何在kafka物化视图中访问头部信息？

import org.apache.kafka.clients.consumer.ConsumerRecord;
import org.springframework.kafka.annotation.KafkaListener;
import org.springframework.stereotype.Component;

@Component
public class KafkaConsumer {

    @KafkaListener(topics = "your_topic")
    public void consumeMessage(ConsumerRecord<String, String> record) {
        // 获取消息的头部信息
        record.headers().forEach(header -> {
            String key = header.key();
            byte[] value = header.value();
            // 处理头部信息
            // ...
        });

        // 处理消息的业务逻辑
        String message = record.value();
        // ...
    }
}