/*
顶级分类默认值:100一级分类:101100(自然数增加)
二级分类:101100100(前6位是父类ID,后3位取当前分类下的最大值加1,从100--999)
顶级分类:100
一级分类:101101(自然数增加)
二级分类:101101100(前6位是父类ID,后3位取当前分类下的最大值加1,从100--999)
每个二级分类下可添加900个子类。
*/
1 //新增分类
2 public String addCategory(Category cate) {
3 try {
4 //1.取模块代码
5 String parentid=cate.getParentid();
6 int begin=parentid.length()+1;
7 String sql1="";
8 int flag = 0;
9 //顶级节点为100,一级节点
10 if(parentid.equals("100")){
11 sql1="SELECT (CASE WHEN MAX(TO_NUMBER(CATID)) IS NULL THEN 100 ELSE MAX(TO_NUMBER(CATID)) END)+1 FROM MALL_CATEGORY WHERE PARENTID=‘100‘";
12 log.info("==addCategory:===="+sql1+"========");
13 Long maxcatid=this.getJdbcTemplate().queryForLong(sql1);
14 cate.setCatid(maxcatid.toString());
15 cate.setParentid("100");
16 flag = 3;
17 }
18 //非一级节点
19 else{
20 sql1 = "select min(catid) from mall_category where parentid=‘"+parentid+"‘ and status=2";
21 Long mincatid=this.getJdbcTemplate().queryForLong(sql1);
22 if(mincatid != 0L){
23 //使用删除的子分类ID作为新的ID,跟新数据
24 cate.setCatid(mincatid.toString());
25 flag = 1;
26 }else{
27 //获取所有分类ID
28 List<Category> listCatid = findAllCatid(parentid);
29 HashSet<String> set = new HashSet<String>();
30 Category item = null;
31 if(!StringUtils.isEmpty(listCatid)){
32 //该父分类下已有子分类,使用未使用过的子分类ID
33 for(int a = 0 ;a<listCatid.size();a++){
34 item = listCatid.get(a);
35 set.add(item.getCatid());
36 }
37 for(int a = 101;a <= 1000;a++){
38 if(a==1000){
39 flag = 2;
40 break;
41 }
42 if(!set.contains(a+"")){
43 cate.setCatid(parentid+a);
44 flag = 3;
45 break;
46 }
47 }
48 }else{
49 //该父分类下首次增加子分类
50 cate.setCatid(parentid+100);
51 flag = 3;
52 }
53 }
54 }
55 //2.取模块顺序
56 String sql2="SELECT (CASE WHEN MAX(TO_NUMBER(LISTORDER)) IS NULL THEN 0 ELSE MAX(TO_NUMBER(LISTORDER)) END)+1 FROM MALL_CATEGORY WHERE parentid=‘"+cate.getParentid()+"‘";
57 log.info("==addCategory:===="+sql2+"========");
58 Integer listorder=this.getJdbcTemplate().queryForInt(sql2);
59 cate.setListorder(listorder);
60 cate.setStatus(1);
61 String sql = "",catid = "";
62 if(flag != 2){
63 if(flag == 3){
64 //新增
65 sql = "INSERT INTO MALL_CATEGORY(CATID,CATNAME,PARENTID,LISTORDER,THUMB,STATUS,CATNAME2) VALUES(‘"+cate.getCatid()+"‘,‘"+cate.getCatname()+"‘,‘"+cate.getParentid()+"‘,"+cate.getListorder()+",‘"+cate.getThumb()+"‘,"+cate.getStatus()+",‘"+cate.getCatname2()+"‘)";
66 }else if(flag == 1){
67 //修改
68 sql = "update MALL_CATEGORY set CATNAME=‘"+cate.getCatname()+"‘,LISTORDER="+cate.getListorder()+",THUMB=‘"+cate.getThumb()+"‘,STATUS="+cate.getStatus()+",CATNAME2=‘"+cate.getCatname2()+"‘ where catid =‘"+cate.getCatid()+"‘";
69 }
70 log.info("sql:"+sql);
71 this.getJdbcTemplate().execute(sql);
72 catid = cate.getCatid();
73 }else{
74 catid = "";
75 }
76 return catid;
77 } catch (Exception e) {
78 log.info("==CategoryDao：addCategory==异常=====msg:"+e.getMessage());
79 return "";
80 }
81 }
分类的生成规则
时间： 2024-10-13 02:17:37