引用jars中的数据文件 [英] referencing data files in jars

问题描述

我的Java程序引用了很多数据文件。我将它们与src /和bin /一起放在名为data /的顶级目录中。在Eclipse中，对data /和../data/的引用似乎都起作用。当我从命令行运行它时，只有../data/有效。

My Java program references a lot of data files. I put them in a top level directory called data/, along with src/ and bin/. In Eclipse, references to data/ and ../data/ both seem to work. When I run it from the command line, only ../data/ works.

当我将bin /和data /目录放在一个jar中并正确设置入口点时，似乎并不知道我要它访问数据/目录里面 jar。我要使其正常工作的唯一方法是将引用设置为../data/，然后将jar放在bin目录中。这显然对我没有任何好处，因为它不是独立的。

When I put the bin/ and data/ directories in a jar and correctly set the entry point, it doesn't seem to know that I want it to access the data/ directory inside the jar. The only way I've been able to get it to work is by setting the references to ../data/ and placing the jar in the bin directory. This obviously doesn't do me any good, because it's not self-contained.

我需要对引用进行哪些​​操作才能使其正常工作？

What do I need to do to the references to make them work?

谢谢

推荐答案

我建议您以相对于类路径的方式访问文件，无论是在Eclipse中还是在已编译的JAR中。

I'd recommend you access the files in a classpath-relative way, whether in Eclipse or in a compiled JAR.

您可以通过几种方法来解决，但仅JDK的基本方法是使用Class的 getResourceAsStream（）方法，使您可以访问可以读取的InputStream对象。

There are a few ways you might go about it, but a basic JDK-only approach would be to use Class's getResourceAsStream() method, giving you access to an InputStream object that you can read in.

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