i am trying to export a pacman game i made from eclipse to a .jar package. The problem is that while everything runs fine on eclipse, when the .jar is exported, the resources i use dont load properly. I have them in a separate /res folder , which is on the build path. I access them in the following ways:
ClassLoader classLoader = getClass().getClassLoader();
try{
image = ImageIO.read(new File(classLoader.getResource("images/PM0.gif").getFile()));
}
catch (IOException e1) {
e1.printStackTrace();
}
File file = new File(classLoader.getResource("levels/"+fileName).getFile());
What am i doing wrong? here is an example of the errors i get(only in the exported .jar on eclipse it runs fine)
In order to retrieve resources from placed inside a jar, you need to use getResourceAsStream()
.
It works on eclipse because the runtime environment is executed using the "unpacked" JAR ( or better put - prepacked ) using actual files.
When working with resources, you should always have them as streams and not as files (unless you're trying to do something really weird).
try the following:
ImageIO.read(classLoader.getResourceAsStream("images/PM0.gif"))
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