Java递归删除文件夹下所有内容

package com.heima.test;

import java.io.File;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.ArrayList;
import java.util.List;

public class DeleteFile {
    public static void main(String[] args) {
/*        String dir = "C:\\Users\\U100926\\Desktop\\delete\\me\\you\\";
        boolean success = (new File(dir)).delete();
        if (success) {
            System.out.println("Successfully deleted empty directory: " + dir);
        } else {
            System.out.println("Failed to delete empty directory: " + dir);
        }*/
       deleteDirectory("C:\\Users\\U100926\\Desktop\\delete\\me\\you\\");
    }

    public static boolean deleteDirectory(String directoryPathStr) {
        Path reportPath = Paths.get(directoryPathStr);
        //先遍历删除文件夹中文件，再删除文件夹
        if (Files.exists(reportPath)) {
            try {
                List<File> directoryList = new ArrayList<>();
                Files.walk(reportPath).map(Path::toFile).forEach(file -> {
                    if (file.isFile()) {
                        //文件直接删除
                        file.delete();
                    } else {
                        directoryList.add(file);
                    }
                });
                //设备最大循环次数，防止死循环
                int time = 0, maxTime = directoryList.size();
                while (directoryList.size() > 0 && time < maxTime) {
                    //遍历删除
                    directoryList.removeIf(file -> file.list().length == 0 && file.delete());
                    time++;
                }
            } catch (Exception e) {
                return false;
            }
        }
        return true;
    }
}

执行代码后