Java_解析字符串为树结构目录

数据示例:
system/test
system/admin
user/wxl/admin
user/wxl/trst
user/admin/wxl
admin/fundate

结果图片示例:

		//巧妙使用set集合去重,我之前使用的是递归

		//从数据库获取String集合
   		List<String> dbAllDirectory = mapper.getAllDirectory();
        Set<String> allDirectory = new HashSet<>();
        //将所有数据添加至set中(此处作为最后级目录)
        allDirectory.addAll(dbAllDirectory);
        //解析dbAllDirectory ,使用split截取数组,并放入allDirectory集合中(示例数据:user  ,  user/wxl  )
        //其实就是拆分一级目录,二级目录,三级目录...,最后级目录已在上面放入
        for (String directory : dbAllDirectory) {
            String[] split = directory.split("/");
            for (int i = 1; i < split.length; i++) {
                allDirectory.add(StringUtil.join("/", ArrayUtil.sub(split, 0, i)));
            }
        }
        //循环所有目录
        for (String directory : allDirectory) {
        	//目录中没有"/"分隔符,视为一级目录
            if (directory.indexOf("/") == -1) {
                TreeNodeModel treeNodeModel = new TreeNodeModel();
                treeNodeModel.setId(directory);
                treeNodeModel.setText(directory);
                treeNodeModel.setIconCls("colorHome-svg");
                result.addNode(treeNodeModel, null);
            } else {
                TreeNodeModel treeNodeModel = new TreeNodeModel();
                treeNodeModel.setId(directory);//当前目录及父目录为ID
                treeNodeModel.setText(directory.substring(directory.lastIndexOf("/") + 1));//截取当前目录名称
                treeNodeModel.setIconCls("colorFolder-svg");//放入放弃目录图标
                result.addNode(treeNodeModel, directory.substring(0, directory.lastIndexOf("/")));
            }
        }

//别人已经写好模型
package fd.tool.data;

import fd.exception.FdDebugException;
import fd.util.StringUtil;

import java.