[SpringBoot] DTO 형식으로 반환해줄 때, NULL값은 숨긴 채로 되돌려주기

DTO에서 NULL값 숨기기

@Getter
@Builder
@NoArgsConstructor
@AllArgsConstructor
@JsonInclude(JsonInclude.Include.NON_NULL)
public class DictHistoryRecentResponseDto {
    private Long historyId;
    private Long revertFrom;
    private String writer;
    private LocalDate createdAt;
}

@JsonInclude(JsonInclude.Include.NON_NULL)

붙여주면 된다. 끝!