1、         

List<BusinessTripApplyDetail> detailsToDelete = genericService.find(BusinessTripApplyDetail.class, cond, null);

List<String> deleteIds=detailsToDelete.stream().map(BusinessTripApplyDetail::getId).collect(Collectors.toList());

2、

// 获取当前用户有权限的组织树

Map<String, AdminOrg> orgTree = orgPowerService.queryUserPowererOrgMap(userId, IServceCodeConstant.ATTEND_SET, 3);

//获取id集合

List<String> orgIds = orgTree.keySet().stream().collect(Collectors.toList());

3、

List<String> shiftBeforeIds = Optional.ofNullable(shiftBeforeIds).orElse(new ArrayList<>());

4、

Optional.ofNullable(staff).orElseThrow(() -> new AdderBusinessException("获取用户信息失败！", "attend.process.i18n0002"));

5、

String year = StringUtils.defaultIfEmpty(year,"");

6、

List<OvertimeOriBillVO>

CollectionUtils.isNotEmpty(orgList)

7、

String[] ids

ArrayUtils.isNotEmpty(ids)

8、

String instanceid

StringUtils.isNotEmpty(instanceid)

9、

ArrayUtils.isEmpty(tripApplys)