博客

import java.io.File;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;

public class FileTest03 {
    static String sourcePath = "填入你的代码地址";

    public static void main(String[] args) {
        File file = new File(sourcePath);
        HashMap<String, String> map = new HashMap<>();
        Set<Map.Entry<String, String>> entries = map.entrySet();
        getFile(file.listFiles(), map);

    }

    public static void getFile(File[] files, HashMap<String, String> map) {
        for (File f : files) {
            if (f.isDirectory()) {
                //空格
                String whiteSpace = createWhiteSpace(f.getPath());
                //目录
                String name = f.getName();
                System.out.println(whiteSpace + name);
                getFile(f.listFiles(), map);
            } else {
                //输出空格和文件名
                System.out.println(createWhiteSpace(f.getPath()) + f.getName());
                map.put(f.getPath(), f.getName());
            }
        }
    }

    public static String createWhiteSpace(String tempPath) {
        String str = "";
        String[] split = sourcePath.split("\\\\");
        String[] temp = tempPath.split("\\\\");
        int whiteNum = temp.length - split.length;
        for (int i = 0; i < whiteNum; i++) {
            str += "    ";
        }
        return str;
    }
}

输出示例