Jar package how to read resource files within the package

purpose

Jar read in the resource file

principle

Class loader encapsulated to obtain resources (the Jar as a whole, can not be used to locate the URI package file)

algorithm

1. Get the class loader
2. Obtain specific resource file input stream

Algorithms practice

类名.class.getClassLoader().getResourceAsStream("资源文件在包内的相对位置");