Question

求助，Java递归遍历文件夹显示为树形菜单Jtree

Answer 1

把文件夹加载到Tree，输出全部文件夹中的文件全限定地址，代码如下

import java.util.List;
import java.util.Map;
public class TreeVo {
    private List<TreeVo> children;
    private String filename;
    public TreeVo(String filename){
        this.filename=filename;
    }
    public String getFilename() {
        return filename;
    }
    public void setFilename(String filename) {
        this.filename = filename;
    }
    public List<TreeVo> getChildren() {
        return children;
    }
    public void setChildren(List<TreeVo> children) {
        this.children = children;
    }
                                                                                                                                                                                                                                                                                                                                                       
    public void addchild(TreeVo vo){
        children.add(vo);
    }
    public boolean islast(){
        return children==null;
    }
}

package com.tomcat.one;
import java.io.File;
import java.util.ArrayList;
import java.util.List;
import com.tomcat.one.vo.TreeVo;
public class FileToTree {
                                                                                                                                                                                                                                                                                                                                                      
    public static void fileToTree(TreeVo root){
        File rootfile=new File(root.getFilename());
                                                                                                                                                                                                                                                                                                                                                          
        if(!rootfile.isDirectory()){
            return;
        }else{
            File[] children=rootfile.listFiles();
            for(File child:children){
                TreeVo childtree=new TreeVo(root.getFilename()+"\\"+child.getName());
                if(root.getChildren()==null){
                    root.setChildren(new ArrayList<TreeVo>());
                }
                root.addchild(childtree);
                fileToTree(childtree);
            }
        }
    }
                                                                                                                                                                                                                                                                                                                                                      
    public static void fillstrlist(TreeVo vo, List strlist, String str) {
        if (vo.islast()) {
            strlist.add(vo.getFilename());
        } else {
            List<TreeVo> list = vo.getChildren();
            for (TreeVo base : list) {
                fillstrlist(base, strlist, base.getFilename());
            }
        }
    }
                                                                                                                                                                                                                                                                                                                                                      
    public static void main(String[] args) {
        TreeVo root=new TreeVo("E:\\java");
        fileToTree(root);
        List<String> strlist=new ArrayList<String>();
        fillstrlist(root,strlist,"");
        for(String fileFullName:strlist){
            System.out.println(fileFullName);
        }
    }
}

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