获取文件的元数据 [英] Get the metadata of a file
本文介绍了获取文件的元数据的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
可以在java中知道文件的元数据吗?如果是,如何在java中获取文件的元数据?
It is possible to know the metadata of a file in java? and if it is, How to get the metadata of a file in java?
推荐答案
你有一组基本的元数据可以从文件中获取。
There is a basic set of metadata that you can get from a file.
Path file = ...;
BasicFileAttributes attr = Files.readAttributes(file, BasicFileAttributes.class);
System.out.println("creationTime: " + attr.creationTime());
System.out.println("lastAccessTime: " + attr.lastAccessTime());
System.out.println("lastModifiedTime: " + attr.lastModifiedTime());
System.out.println("isDirectory: " + attr.isDirectory());
System.out.println("isOther: " + attr.isOther());
System.out.println("isRegularFile: " + attr.isRegularFile());
System.out.println("isSymbolicLink: " + attr.isSymbolicLink());
System.out.println("size: " + attr.size());
有些东西是平台相关的,我的抛出异常或返回意外结果。
Some things are platform dependent and my throw exceptions or return unexpected results.
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