打包成jar文件后Java应用程序无法正常工作
[英]Java Application not working after Packaging into jar file
问题描述
I had a java app working properly by Intellij IDEA but not working after packaging into jar file 
我有一个Java应用程序可以通过Intellij IDEA正常工作，但打包到jar文件后无法正常工作
what are the possible causes ? 可能的原因是什么？ and how can I find the mistake ? 以及如何找到错误？
the app is a gradle project ( libgdx ) and I packaged it by command line gradlew desktop:dist 该应用程序是gradle项目（ libgdx ），我通过命令行gradlew desktop:dist打包了它
it give me this 它给我这个
Exception in thread "LWJGL Application" com.badlogic.gdx.utils.GdxRun timeException: Error reading file: json\levels.json <Absolute>
at com.badlogic.gdx.files.FileHandle.read<FileHandle.java:144>
1 个解决方案
解决方案1
1 已采纳 2016-07-06 12:23:24
After packaging the application JAR file, is the JSON file part of the JAR? 打包应用程序JAR文件后，JSON文件是JAR的一部分吗？ Then you have to change the way of accessing the file. 然后，您必须更改访问文件的方式。 You can't access a file through an absolute file path, but instead you should use 您不能通过绝对文件路径访问文件，而应使用
InputStream in = ClassLoader.getSystemResourceAsStream("path/to/file/in/jar")
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