在Java中查找所有驱动器号 [英] Find all drive letters in Java

问题描述

对于我正在进行的项目。我需要在文件系统上查找可执行文件。对于UNIX衍生产品，我假设用户在强大的$ PATH变量中有文件，但在Windows上没有这样的东西。

For a project I'm working on. I need to look for an executable on the filesystem. For UNIX derivatives, I assume the user has the file in the mighty $PATH variable, but there is no such thing on Windows.

我可以放心地假设文件位于最深入文件系统的2个级别，但我不知道它将是什么驱动器。我必须尝试所有驱动器，但我无法弄清楚如何列出所有可用的驱动器（分配了一个字母）。

I can safely assume the file is at most 2 levels deep into the filesystem, but I don't know on what drive it will be. I have to try all drives, but I can't figure out how to list all available drives (which have a letter assigned to it).

任何帮助？

编辑：我知道％PATH％变量，但它不像UNIX系统那样集成。例如，我正在寻找的应用程序是OpenOffice。此类软件通常不会在％PATH％中。

I know there is a %PATH% variable, but it is not as integrated as in UNIX systems. For instance, the application I'm looking for is OpenOffice. Such software would not be in %PATH%, typically.

推荐答案

http://docs.oracle.com/javase/7/docs/api/java/io/ File.html＃listRoots（）

File[] roots = File.listRoots();
for(int i = 0; i < roots.length ; i++)
    System.out.println("Root["+i+"]:" + roots[i]);

google：list drives java，first hit： - ）

google: list drives java, first hit:-)

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