递归

使用递归实现删除

 1 //删除
 2     public String dictionaryDel(){
 3         try {
 4             if (ids != null && !"".equals(ids)) {
 5                 
 6                 String[] split = ids.split(",");
 7                 
 8                 for(String id:split){
 9                     utilService.updateAll("update Dictionary d set d.isDele=1 where d.id="+id);
10                     dictionarySet(id);
11                 }
12                 for(String id:split){
13                     Dictionary dictionaryOld = (Dictionary) this.utilService.getObjectById(Dictionary.class, Integer.parseInt(id));
14                     if(dictionaryOld.getFkDicId()!=0){
15                         int count=utilService.getHqlCount("from Dictionary d where d.isDele=0 and d.fkDicId="+dictionaryOld.getFkDicId());
16                         if(count==0){
17                             Dictionary dictionaryP = (Dictionary) this.utilService.getObjectById(Dictionary.class, dictionaryOld.getFkDicId());
18                             dictionaryP.setIsLeaf(1);
19                             utilService.update(dictionaryP);
20                         }
21                     }
22                 }
23             }
24             return dictionaryList();
25         } catch (Exception e) {
26             e.printStackTrace();
27         }
28         return ERROR;
29     }
30     private void dictionarySet(String id)throws Exception {
31         List<Dictionary> dictionaries=(List<Dictionary>) utilService.getHqlAll("from Dictionary d where d.isDele=0 and d.fkDicId="+id);
32         if(dictionaries!=null&&dictionaries.size()>0){
33             for(Dictionary dictionary:dictionaries){
34                 utilService.updateAll("update Dictionary d set d.isDele=1 where d.id="+dictionary.getId());
35                 dictionarySet(dictionary.getId().toString());
36             }
37         }
38     }

View Code

数据库

相关阅读:
互联网与局域网（四）
Socket介绍（五）
HttpClient（七）
TCP协议与HTTP协议区别
TCP连接的三次握手
context-param和init-param区别
【HPU】[1736]老王修马路(二)
【HPU】[1735]老王修马路(一)
【HPU】[1734]老王修公园
【HPU】[1733]神奇的数字9

原文地址：https://www.cnblogs.com/yang1018/p/7201494.html