应用包名:cn.jobpi.studentapp (在manifest文件里面声明)
应用签名:使用签名工具apk输入应用包名,在手机上可以获取签名
签名生成工具介绍:
https://www.cnblogs.com/lhj-blog/p/14900909.html
https://blog.csdn.net/mr_lihuijie/article/details/118592872
https://developers.weixin.qq.com/community/develop/doc/000e285dad8ca027ce5ebc3305b400?highLine=%25E7%25AD%25BE%25E5%2590%258D%25E7%2594%259F%25E6%2588%2590%25E5%25B7%25A5%25E5%2585%25B7
签名生成工具下载
https://developers.weixin.qq.com/doc/oplatform/Downloads/Android_Resource.html
或者在微信帮助文档里搜索(签名生成工具)