指定jar的类路径 [英] Specifying classpath for a jar

问题描述

我正在尝试配置JAR的类路径，以便我的ResourceBundle可以从中获取属性文件。

I am trying to configure the classpath of a JAR so that my ResourceBundle can pick up property files from it.

如果我从.class文件中运行它指定 -cp 标志它工作正常， System.err.println（System.getProperty（java.class.path））; 将打印 -cp 标志中指定的路径。

If I run it from the .class files and specify the -cp flag it works fine, and System.err.println(System.getProperty("java.class.path")); will print the path specified in the -cp flag.

如果我尝试创建一个jar文件， System.err.println（System.getProperty（java.class.path））; 总是打印jar文件的路径，并且属性文件没有被提取。

If I try and create a jar file for it, System.err.println(System.getProperty("java.class.path")); always prints the path of the jar file, and the property files aren't picked up.

看来如果你将它作为jar文件运行，你不能指定 -cp flag（这是我所希望的，因为切换正在使用的属性文件是很常见的）。我已经尝试在jar清单中指定它，但它仍然不起作用。

It seems if you are running it as a jar file you can't specify the -cp flag (which was what I was hoping, as it's common to switch which property files are being used). I've tried specifying it in the jar manifest instead, but it's still not working.

这是来自测试jar的代码和清单似乎不起作用：

Here is the code and manifest from a test jar that doesn't seem to work:

public final class Test {
    public static void main(final String[] args) {
        System.err.println(System.getProperty("java.class.path"));
    }
}

 

Manifest-Version: 1.0
Created-By: 1.6.0_20 (Sun Microsystems Inc.)
Main-Class: Test
Class-Path: /home/ajanuary/Projects/test/

edit
原始路径没有意义，所以我改变了它。我想指向一个ResourceBundle可以找到属性文件的目录。

edit The original path was rather meaningless so I changed it. I want to point to a directory which the ResourceBundle can find the property files in.

推荐答案

问题是我也有一个索引文件。如果您有索引文件，则将忽略Class-Path。

The problem was that I also had an index file. If you have an index file, the Class-Path will be ignored.

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