package com.example.kafkanativeserialization; import java.util.function.Function; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.context.annotation.Bean; @SpringBootApplication public class KafkaNativeSerializationApplication { public static void main(String[] args) { SpringApplication.run(KafkaNativeSerializationApplication.class, args); } @Bean public Function process() { return str -> { Person item = new Person(str); return item; }; } }