IDEA打包jar包与jar读取外部文件

IDEA打包jar包详尽流程 https://blog.csdn.net/weixin_42089175/article/details/89113271

https://blog.csdn.net/T1DMzks/article/details/75099029

jar包中的类如何读取包内和包外的配置文件 https://www.cnblogs.com/onmyway20xx/p/4212903.html