contoller단 질문입니다.

첫번째코드는 jpa1탄 이고, 두번째코드는 jpa2탄 입니다. 2개 다 contoller단인데 1탄은 html에서만 동작하고 2탄은 postman에 같은곳에서 동작하는건가요? 근데jpa2탄 api만 놔두어도 정상작동은 되는데 원래 이런건가요?

@PostMapping("/api/v2/members")
public CreateMemberResponse saveMemberV2(@RequestBody @Valid CreateMemberRequest request) {

    Member member = new Member();
    member.setName(request.getName());

    Long id = memberService.join(member);
    return new CreateMemberResponse(id);
}

@PostMapping("/members/new")
public String create(@Valid MemberForm form, BindingResult result) {

    if (result.hasErrors()) {
        return "members/createMemberForm";
    }

    Address address = new Address(form.getCity(), form.getStreet(), form.getZipcode());

    Member member = new Member();
    member.setName(form.getName());
    member.setAddress(address);

    memberService.join(member);
    return "redirect:/";
}