标签:封装 String useLevel List private bodyList 树形 Java null
话不多说直接上菜
1,实体类
@Data public class SysTagConf implements java.io.Serializable{ private String rowGuid; //唯一标识 private String name; //标签名称 private String opType; //授权类型 0全部 1目录清单 2实施清单 3办理项 private String useLevel; //使用层级 0不限 2省级 3地市级 4区县级 private float sort; //排序 private String parentGuid; //父节点标识 private String bakNote; //备注 private String createUId; //创建人ID private String createUName; //创建人名称 private String createTime; //创建时间 private String updateUId; //更新人ID private String updateUName; //更新人名称 private String updateTime; //更新时间 private String parentName; //父节点名称 private List<SysTagConf> childList; }
2,业务模块serviceImpl
/**--------------------数据封装树结构代码---------------------------*/ @Override public List<SysTagConf> tagConfTreeList(String deptId, List<String> opType) { SysDepartment sysDepartment = departmentDao.selectDepartmentByUserId(deptId); String useLevel = null;//行使层级 if(sysDepartment != null){ if(sysDepartment.getUseLevel() != null && !"".equals(sysDepartment.getUseLevel())) { useLevel = sysDepartment.getUseLevel();//行使层级赋值 } } List<SysTagConf> sysTagConfList = sysTagConfDao.tagConfTreeList(useLevel,opType); //查询所有数据 List<SysTagConf> rootList = new ArrayList<>(); //根节点对象存放到这里 List<SysTagConf> bodyList = new ArrayList<>(); //其他节点存放到这里,可以包含根节点 for (SysTagConf sysTagConf: sysTagConfList) { if(sysTagConf != null) { if (sysTagConf.getParentGuid().equals("")) { rootList.add(sysTagConf);//所有父节点数据放进去 } else { bodyList.add(sysTagConf); //其他节点数据也放进去 } } } List<SysTagConf> stc = getTree(rootList,bodyList);//组装的树返给前端sb return stc; } public List<SysTagConf> getTree(List<SysTagConf> rootList,List<SysTagConf> bodyList){ if(bodyList != null && !bodyList.isEmpty()){ //声明一个map,用来过滤已操作过的数据 Map<String,String> map = Maps.newHashMapWithExpectedSize(bodyList.size()); rootList.forEach(beanTree -> getChild(beanTree,map,bodyList)); return rootList; } return null; } public void getChild(SysTagConf treeDto,Map<String,String> map,List<SysTagConf> bodyList){ List<SysTagConf> childList = Lists.newArrayList(); bodyList.stream() .filter(c -> !map.containsKey(c.getRowGuid())) .filter(c ->c.getParentGuid().equals(treeDto.getRowGuid())) .forEach(c ->{ map.put(c.getRowGuid(),c.getParentGuid()); getChild(c,map,bodyList); childList.add(c); }); treeDto.setChildList(childList);//子数据集 } /**--------------------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
}
标签:封装,String,useLevel,List,private,bodyList,树形,Java,null 来源: https://blog.csdn.net/chendu500qiang/article/details/91493147
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