类中包含EXCEL的操作整合,你可以将类文件拷贝到你的JAVA 项目中，使用类中提供的通用方法操作EXCEL，比如可以直接调用方法把EXCEL数据转换为LIST<Map>简单方便。(Contains the EXCEL operation of the integrated class, you can copy files to your JAVA project, the general method used in class EXCEL operation, for example, you can directly call the EXCEL data into LIST<Map> simple and convenient.)