- Collections.sort(list, new Comparator<TreeDto>() {
- @Override
- public int compare(TreeDto a2, TreeDto b2) {
- return a2.getId().compareTo(b2.getId());
- }
- });
- Collections.binarySearch(list,new TreeDto(null,null,Integer.valueOf(paramId),null,null,null,null,null), new Comparator<TreeDto>() {
- @Override
- public int compare(TreeDto o1, TreeDto o2) {
- // TODO Auto-generated method stub
- if (o1.getPid() != null && o2.getPid() != null) {
- return o1.getPid().compareTo(o2.getPid());
- }else if (o1.getPid() == null && o2.getPid() == null) {
- return 0;
- }
- return -1;
- }
- });
来源: http://www.bubuko.com/infodetail-2291474.html