代碼-遞歸方法彙總

1、根據父節點找所有的子節點

public List<TelecomBusinessSystem> getSubBusinessSystemByParentUuid(String parentUuid){
    List<TelecomBusinessSystem> allSubBusinessSystemList = new ArrayList<>();
    List<TelecomBusinessSystem> subBusinessSystemList = telecomBusinessSystemDao.getSubSystemByParentUuid(parentUuid);
    if(subBusinessSystemList!=null&&subBusinessSystemList.size()>0){
        allSubBusinessSystemList.addAll(subBusinessSystemList);
        for(TelecomBusinessSystem businessSystem:subBusinessSystemList){
            allSubBusinessSystemList.addAll(getSubBusinessSystemByParentUuid(businessSystem.getUuid()));
        }
    }
    return allSubBusinessSystemList;
}