设置和获取文件元数据--basic

• 设置

  /**
   * 设置文件的最后修改时间/创建时间/最后访问时间
  * @param path
   */
  private static void set(Path path) {
  	long time = System.currentTimeMillis();
  		
  	FileTime fileTime = FileTime.fromMillis(time);
  		
  	try {
  		Files.setAttribute(path, "basic:lastModifiedTime", fileTime, LinkOption.NOFOLLOW_LINKS);
  		Files.setAttribute(path, "basic:creationTime", fileTime, LinkOption.NOFOLLOW_LINKS);
  		Files.setAttribute(path, "basic:lastAccessTime", fileTime, LinkOption.NOFOLLOW_LINKS);
  	} catch (Exception e) {
  		e.printStackTrace();
  	}
  		
  }

  
  
• 获取文件最后修改时间/创建时间/最后访问时间

  /**
  * 获取文件的最后修改时间/创建时间/访问时间
  * @param path
  */
  private static void get(Path path) {
  	try {
  		FileTime lastModifiedTime = (FileTime) Files.getAttribute(path, "basic:lastModifiedTime", LinkOption.NOFOLLOW_LINKS);
  		FileTime creationTime = (FileTime) Files.getAttribute(path, "basic:creationTime", LinkOption.NOFOLLOW_LINKS);
  		FileTime lastAccessTime = (FileTime) Files.getAttribute(path, "basic:lastAccessTime", LinkOption.NOFOLLOW_LINKS);
  		
  		System.out.println("New last modified time: " + lastModifiedTime);
  		System.out.println("New creation time: " + creationTime);
  		System.out.println("New last access time: " + lastAccessTime);
  	} catch (IOException e) {
  			
  		e.printStackTrace();
  	}
  }

  
  
• 获取文件最后修改时间

  /**
  * 获取文件最后修改时间
  * @param path
  */
  private static void get_lastModifiedTime(Path path) {
  	try {
  		FileTime lastModifiedTime = Files.getLastModifiedTime(path, LinkOption.NOFOLLOW_LINKS);
  			
  		System.out.println("New last modified time: " + lastModifiedTime);
         } catch (IOException e) {
  	   e.printStackTrace();
         }
  }

  
  
• 测试

  public static void main(String[] args) {
  	Path path = Paths.get("F:/cn/icer/ws/client/Business.java");
  		
  	//设置
  	set(path);
  		
  	//获取
  	get(path);
  		
  	//获取最后修改时间
  	get_lastModifiedTime(path);
  }