定义用户属性

import java.io.IOException;

import java.nio.charset.Charset;
/* 
 来自 
*n o w    j a v a  . c o m*/

import java.nio.file.Files;

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 {

      int written = udfav.write("file.description", Charset.defaultCharset()

          .encode(