findAll

Controller

@GetMapping
public ResponseEntity<Page<UserDTO>> findAll(Pageable pageable) {
    Page<UserDTO> list = userService.findAll(pageable);
    return ResponseEntity.ok().body(list);
}

Service

public Page<UserDTO> findAll(Pageable pageable) {
    Page<User> users = userRepository.findAll(pageable);
    return users.map(UserDTO::new);
}