永远对利益保持谨慎，事前充分了解机制

public record emailDto(Long id, String email){}; @PostMapping(“email/request”) public BasicApiResponseEntity updateemail(@RequestBody emailDto dto) { if (dto.id == null || dto.email == null) { throw new BadRequestException(); } userService.updateUseremail(dto.id, dto.email); return BasicApiResponseEntity.ok(“succeed!”); }