RestMemberController.java

  @GetMapping("/api/members/{id}")
  public ResponseEntity<Object> member(@PathVariable Long id, HttpServletResponse response) {
    Member member = memberDao.selectById(id);
    if (member == null) {
      throw new MemberNotFoundException();
    }
    return ResponseEntity.status(HttpStatus.OK).body(member);
  }

  @ExceptionHandler(MemberNotFoundException.class)
  public ResponseEntity<Object> handleNoData() {
    return ResponseEntity.status(HttpStatus.NOT_FOUND).body(new ErrorResponse("no member"));
  }