Spring MVC 컨트롤러

@RestController
@RequestMapping("/api/users")
@RequiredArgsConstructor // Lombok
public class UserController {
    private final UserService userService;

    // GET /api/users
    @GetMapping
    public List<UserDto> getAll() {
        return userService.findAll();
    }

    // GET /api/users/1
    @GetMapping("/{id}")
    public UserDto getOne(@PathVariable Long id) {
        return userService.findById(id);
    }

    // GET /api/users?page=0&size=10
    @GetMapping("/search")
    public Page<UserDto> search(
            @RequestParam(defaultValue = "0") int page,
            @RequestParam(defaultValue = "10") int size) {
        return userService.search(page, size);
    }

    // POST /api/users
    @PostMapping
    @ResponseStatus(HttpStatus.CREATED)
    public UserDto create(@RequestBody @Valid CreateUserDto dto) {
        return userService.create(dto);
    }

    // PUT /api/users/1
    @PutMapping("/{id}")
    public UserDto update(
            @PathVariable Long id,
            @RequestBody @Valid UpdateUserDto dto) {
        return userService.update(id, dto);
    }

    // DELETE /api/users/1
    @DeleteMapping("/{id}")
    @ResponseStatus(HttpStatus.NO_CONTENT)
    public void delete(@PathVariable Long id) {
        userService.delete(id);
    }
}