java 获取文件路径的相对路径？
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Get relative path of a File path?
提问by stefan.at.wpf
I need to get the relative file path (relative to the program executable path) from a Fileobject.
我需要从File对象中获取相对文件路径（相对于程序可执行路径）。
What's the best way to do this? Fileoffers only methods for the absolute path. Maybe getting execution path manually and then cut this path off from the absolute path to get a relative path?
做到这一点的最佳方法是什么？File仅提供绝对路径的方法。也许手动获取执行路径，然后从绝对路径中切断这条路径以获得相对路径？
I am on Java 7, just in case java.nio has some helping method for that.
我在 Java 7 上，以防万一 java.nio 有一些帮助方法。
Tahnks for any hint!
感谢您的任何提示！
回答by Sean Landsman
As you're using Java 7 you can make use of the new Path class, which has a number of really cool methods, including Path.relativize.
当您使用 Java 7 时，您可以使用新的 Path 类，它有许多非常酷的方法，包括Path.relativize。
回答by Carlo Pellegrini
You need the method:
你需要的方法：
Path relativize(Path other)
of java.nio.file.Path.
的java.nio.file.Path。
To obtain a Path from a file you could use its Path toPath()method.
要从文件中获取路径，您可以使用它的Path toPath()方法。
