[英]getResource isn't working exported in a jar
So getResource does not work in a jar, or as I have it in my code it is returning the children of the file to null when I ask to list its files. 所以getResource在jar中不起作用,或者因为我在我的代码中有它,当我要求列出其文件时,它会将文件的子节点返回null。 In eclipse it works perfectly fine.
在日食中它完美无缺。 I need it as a file, to list its children which are more files.
我需要它作为一个文件,列出其子文件更多的文件。
The / is relating to the class folder I have added. /与我添加的类文件夹有关。
Here is the block of code: 这是代码块:
try {
mapFiles = (new File(LevelPickerScreen.class.getResource("/Maps").toURI())).listFiles();
} catch (URISyntaxException e) {
e.printStackTrace();
}
getResource
works perfectly well - but you're then calling the File
constructor, and the resource doesn't exist as a File
. getResource
运行得非常好 - 但是您正在调用File
构造函数,并且该资源不作为File
存在。 It's not a file - it's a resource within a jar file. 它不是文件 - 它是jar文件中的资源。
I suspect you'll find it hard to get it to list the resources within the jar file in this way, too - you could load the jar file separately, but it would probably be simpler just to automate listing all of the children as part of your build procedure, and then drop a file into the jar file as /Maps/maps.txt
which contains a list of the map names. 我怀疑你会发现很难让它以这种方式列出jar文件中的资源 - 你可以单独加载jar文件,但它可能更简单,只是自动列出所有的孩子作为一部分您的构建过程,然后将文件作为
/Maps/maps.txt
放入jar文件中,该文件包含地图名称列表。 You can then load each of them in turn using getResource
or getResourceAsStream
- but don't try to use the File
API with it. 然后,您可以使用
getResource
或getResourceAsStream
依次加载它们 - 但不要尝试使用File
API。
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