话不多说直接上菜
1，实体类
/**
* @ClassName SysTagConf
* @Description TODO
* @Author shenWB
* @Date 2019/5/31 10:12
* @Version 1.0
**/-
@Data
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public class SysTagConf implements java.io.Serializable{
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private String rowGuid; //唯一标识
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private String name; //标签名称
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private String opType; //授权类型 0全部 1目录清单 2实施清单 3办理项
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private String useLevel; //使用层级 0不限 2省级 3地市级 4区县级
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private float sort; //排序
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private String parentGuid; //父节点标识
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private String bakNote; //备注
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private String createUId; //创建人ID
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private String createUName; //创建人名称
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private String createTime; //创建时间
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private String updateUId; //更新人ID
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private String updateUName; //更新人名称
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private String updateTime; //更新时间
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private String parentName; //父节点名称
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private List <SysTagConf> childList;
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}
2,业务模块serviceImpl
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/**--------------------数据封装树结构代码---------------------------*/
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@Override
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public List <SysTagConf> tagConfTreeList(String deptId, List <String> opType) {
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SysDepartment sysDepartment = departmentDao.selectDepartmentByUserId(deptId);
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String useLevel = null;//行使层级
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if(sysDepartment != null){
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if(sysDepartment.getUseLevel() != null && !"".equals(sysDepartment.getUseLevel())) {
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useLevel = sysDepartment.getUseLevel();//行使层级赋值
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}
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}
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List <SysTagConf> sysTagConfList = sysTagConfDao.tagConfTreeList(useLevel,opType); //查询所有数据
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List <SysTagConf> rootList = new ArrayList <>(); //根节点对象存放到这里
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List <SysTagConf> bodyList = new ArrayList <>(); //其他节点存放到这里，可以包含根节点
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for (SysTagConf sysTagConf: sysTagConfList) {
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if(sysTagConf != null) {
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if (sysTagConf.getParentGuid().equals("")) {
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rootList.add(sysTagConf);//所有父节点数据放进去
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} else {
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bodyList.add(sysTagConf); //其他节点数据也放进去
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}
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}
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}
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List <SysTagConf> stc = getTree(rootList,bodyList);//组装的树返给前端sb
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return stc;
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}
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public List <SysTagConf> getTree(List <SysTagConf> rootList,List <SysTagConf> bodyList){
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if(bodyList != null && !bodyList.isEmpty()){
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//声明一个map，用来过滤已操作过的数据
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Map <String,String> map = Maps.newHashMapWithExpectedSize(bodyList.size());
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rootList.forEach(beanTree -> getChild(beanTree,map,bodyList));
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return rootList;
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}
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return null;
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}
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public void getChild(SysTagConf treeDto,Map <String,String> map,List <SysTagConf> bodyList){
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List <SysTagConf> childList = Lists.newArrayList();
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bodyList.stream()
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.filter(c -> !map.containsKey(c.getRowGuid()))
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.filter(c ->c.getParentGuid().equals(treeDto.getRowGuid()))
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.forEach(c ->{
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map.put(c.getRowGuid(),c.getParentGuid());
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getChild(c,map,bodyList);
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childList.add(c);
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});
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treeDto.setChildList(childList);//子数据集
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}
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/**--------------------到此结束---------------------------*/
3返回效果
{
"code": 0,
"message": "操作成功",
"data": [
{
"rowGuid": "1",
"name": "1",
"opType": "1",
"useLevel": "1",
"sort": 1,
"parentGuid": "",
"bakNote": "1",
"createUId": "1",
"createUName": "1",
"createTime": "1",
"updateUId": "1",
"updateUName": "1",
"updateTime": "1",
"parentName": null,
"childList": [
{
"rowGuid": "2",
"name": "2",
"opType": "1",
"useLevel": "1",
"sort": 2,
"parentGuid": "1",
"bakNote": "2",
"createUId": "2",
"createUName": "2",
"createTime": "2",
"updateUId": "2",
"updateUName": "2",
"updateTime": "2",
"parentName": null,
"childList": [
{
"rowGuid": "3",
"name": "3",
"opType": "1",
"useLevel": "1",
"sort": 3,
"parentGuid": "2",
"bakNote": "3",
"createUId": "3",
"createUName": "3",
"createTime": "3",
"updateUId": "3",
"updateUName": "3",
"updateTime": "3",
"parentName": null,
"childList": []
}
]
}
]
}
],
"messageId": null
}
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话不多说直接上菜
