使用Files类的setAttribute方法

import java.io.IOException;

import java.nio.file.Files;

import java.nio.file.Path;

import java.nio.file.Paths;/*来 自 时代Java - nowjava.com*/

import java.nio.file.attribute.PosixFilePermission;


public class Main {

  public static void main(String[] args) throws Exception {

    Path path = Paths.get("home/docs/users.txt");

    try {

      Files.setAttribute(path, "posix:permission",

          PosixFilePermission.OT