获取用户的值

import java.io.IOException;

import java.nio.ByteBuffer;

import java.nio.charset.Charset;

import java.nio.file.Files;
/**来自 
 NowJava.com - 时代Java**/

import java.nio.file.Path;

import java.nio.file.Paths;

import java.nio.file.attribute.UserDefinedFileAttributeView;


public class Main {

  public static void main(String[] args) {

    Path path = Paths.get("C:/folder1/folder2/folder4", "test.txt");

    UserDefinedFileAttributeView udfav = Files.getFileAttributeView(path,

        UserDefinedFileAttributeView.class);


    try {/**from 时代Java公众号 - N o w J a  v a . c o m**/

      int size = udfav.size("file.description");

      ByteBuffer bb = ByteBuffer.allocateDirect(size);

      udfav.read(