RsData 클래스 생성해서 직접 returnex. RsData@JsonInclude(JsonInclude.Include.NON_NULL)@AllArgsConstructor@Getterpublic class RsData { private String resultCode; private String msg; private T data; public RsData(String resultCode, String msg) { this(resultCode, msg, null); }} ex. Controller@PutMapping("/{id}") @Transactional public RsData modifyItem( @PathVariable lo..