如何获取Java JAR文件中的资源路径 [英] How to get a path to a resource in a Java JAR file

问题描述

我正试图找到资源的路径，但我没有运气。

I am trying to get a path to a Resource but I have had no luck.

这适用于（在IDE和JAR中）但这样我无法获得文件的路径，只有文件内容：

This works (both in IDE and with the JAR) but this way I can't get a path to a file, only the file contents:

ClassLoader classLoader = getClass().getClassLoader();
PrintInputStream(classLoader.getResourceAsStream("config/netclient.p"));

如果我这样做：

ClassLoader classLoader = getClass().getClassLoader();
File file = new File(classLoader.getResource("config/netclient.p").getFile());

结果是：
java.io.FileNotFoundException：file ：/ path/to/jarfile/bot.jar！/config/netclient.p（没有这样的文件或目录）

有没有获取资源文件路径的方法？

Is there a way to get a path to a resource file?

推荐答案

这是故意的。 文件的内容可能无法作为文件提供。请记住，您正在处理可能属于JAR文件或其他类型资源的类和资源。类加载器不必为资源提供文件句柄，例如jar文件可能没有扩展到文件系统中的单个文件中。

This is deliberate. The contents of the "file" may not be available as a file. Remember you are dealing with classes and resources that may be part of a JAR file or other kind of resource. The classloader does not have to provide a file handle to the resource, for example the jar file may not have been expanded into individual files in the file system.

你能做什么如果绝对需要java.io.File，可以通过将流复制到临时文件并执行相同的操作来获取java.io.File。

Anything you can do by getting a java.io.File could be done by copying the stream out into a temporary file and doing the same, if a java.io.File is absolutely necessary.

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