从jar包中读资源文件，如配置文件等。第一种方法读Jar包中的资源信息，首先读取资源的URL，再读取URL对应的文件信息。第二种方法读Jar包中的资源信息。-Reading package from jar resource file, such as configuration files. The first method Reading Jar package of information resources, first of all read the resource URL, and