mongodbRepository findAll查询结果Page对象处理某些字段不展示

情况

通过mongodbRepository.findAll 进行分页处理查询后想要设置某些字段不展示

代码

giftCardRepository.findAll(Example.of(giftCard), PageRequest.of(PageUtils.getCurrent(params) - 1,
				PageUtils.getSize(params), Sort.by(Sort.Direction.DESC, "id"))).map(giftCard1 -> giftCard1.setCdKey(null));
 

repository

@Repository
public interface GiftCardRepository extends MongoRepository<GiftCard, String> {

相关工具类 老大写的

public class PageUtils {

	private static final String PAGE = "page";

	private static final String LIMIT = "limit";

	private static final String ORDER_BY_FIELD = "orderByField";

	private static final String IS_ASC = "isAsc";

	public static int getSize(Map<String, Object> params) {
		return Integer.parseInt(params.getOrDefault(LIMIT, 10).toString());
	}

	public static int getCurrent(Map<String, Object> params) {
		return Integer.parseInt(params.getOrD