MyBatis-Plus 實現數據庫字段更新為 NULL

feeMapper.update(Wrappers.<FeePO>lambdaUpdate()
    .eq(FeePO::getId, feeDO.getId())
    .set(ObjectUtils.isNotEmpty(feeDO.getMoney()), FeePO::getMoney, feeDO.getMoney())
    .set(ObjectUtils.isEmpty(feeDO.getMoney()), FeePO::getMoney, null)
);