使用 Java 在 Windows 上隐藏文件/文件夹
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Make a File/Folder Hidden on Windows with Java
提问by Kryten
I need to make files and folders hidden on both Windows and Linux. I know that appending a '.' to the front of a file or folder will make it hidden on Linux. How do I make a file or folder hidden on Windows?
我需要在 Windows 和 Linux 上隐藏文件和文件夹。我知道附加一个“。” 到文件或文件夹的前面将使其在 Linux 上隐藏。如何在 Windows 上隐藏文件或文件夹？
采纳答案by Andrew
For Java 6 and below,
对于 Java 6 及以下版本，
You will need to use a native call, here is one way for windows
您将需要使用本机调用，这是 Windows 的一种方法
Runtime.getRuntime().exec("attrib +H myHiddenFile.java");
You should learn a bit about win32-api or Java Native.
您应该了解一些有关 win32-api 或 Java Native 的知识。
回答by Marian
The functionality that you desire is a feature of NIO.2 in the upcoming Java 7.
您想要的功能是即将推出的 Java 7 中 NIO.2 的一个特性。
Here's an article describing how will it be used for what you need: Managing Metadata (File and File Store Attributes). There's an example with DOS File Attributes:
这是一篇描述如何将其用于您需要的文章：管理元数据（文件和文件存储属性）。有一个DOS 文件属性的例子：
Path file = ...;
try {
DosFileAttributes attr = Attributes.readDosFileAttributes(file);
System.out.println("isReadOnly is " + attr.isReadOnly());
System.out.println("isHidden is " + attr.isHidden());
System.out.println("isArchive is " + attr.isArchive());
System.out.println("isSystem is " + attr.isSystem());
} catch (IOException x) {
System.err.println("DOS file attributes not supported:" + x);
}
Setting attributes can be done using DosFileAttributeView
可以使用DosFileAttributeView设置属性
Considering these facts, I doubt that there's a standard and elegant way to accomplish that in Java 6 or Java 5.
考虑到这些事实，我怀疑在 Java 6 或 Java 5 中是否有一种标准而优雅的方式来实现这一点。
回答by Marian
this is what I use:
这是我使用的：
void hide(File src) throws InterruptedException, IOException {
// win32 command line variant
Process p = Runtime.getRuntime().exec("attrib +h " + src.getPath());
p.waitFor(); // p.waitFor() important, so that the file really appears as hidden immediately after function exit.
}
回答by Steve Emmerson
Java 7 can hide a DOS file this way:
Java 7 可以通过以下方式隐藏 DOS 文件：
Path path = ...;
Boolean hidden = path.getAttribute("dos:hidden", LinkOption.NOFOLLOW_LINKS);
if (hidden != null && !hidden) {
path.setAttribute("dos:hidden", Boolean.TRUE, LinkOption.NOFOLLOW_LINKS);
}
Earlier Java-s can't.
早期的 Java-s 不能。
The above code will not throw an exception on non-DOS file-systems. If the name of the file starts with a period, then it will also be hidden on UNIX file-systems.
上面的代码不会在非 DOS 文件系统上抛出异常。如果文件名以句点开头，那么它也会在 UNIX 文件系统上隐藏。
回答by Vighanesh Gursale
String cmd1[] = {"attrib","+h",file/folder path};
Runtime.getRuntime().exec(cmd1);
Use this code it might solve you problem
使用此代码可能会解决您的问题
回答by redlasha
on windows, using java nio, Files
在 Windows 上，使用 java nio，文件
Path path = Paths.get(..); //< input target path
Files.write(path, data_byte, StandardOpenOption.CREATE_NEW); //< if file not exist, create
Files.setAttribute(path, "dos:hidden", Boolean.TRUE, LinkOption.NOFOLLOW_LINKS); //< set hidden attribute
回答by Mark Burleigh
Here is a fully compilable Java 7 code sample which hides an arbitrary file on Windows.
这是一个完全可编译的 Java 7 代码示例，它隐藏了 Windows 上的任意文件。
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.nio.file.attribute.DosFileAttributes;
class A {
public static void main(String[] args) throws Exception
{
//locate the full path to the file e.g. c:\a\b\Log.txt
Path p = Paths.get("c:\a\b\Log.txt");
//link file to DosFileAttributes
DosFileAttributes dos = Files.readAttributes(p, DosFileAttributes.class);
//hide the Log file
Files.setAttribute(p, "dos:hidden", true);
System.out.println(dos.isHidden());
}
}
To check the file is hidden. Right-click on the file in question and you will see after the execution of the court that the file in question is truly hidden.
检查文件是否隐藏。右键单击相关文件，您将在执行法院后看到相关文件确实被隐藏了。
