javaweb连接mysql 版本区别 和 查询不到中文

mysql5.7

jdbc:mysql://localhost:3306/aaa?useUnicode=true&useSSL=false&serverTimezone=UTC&characterEncoding=UTF-8 设置utf-8

mysql8 和 5 的区别

https://blog.youkuaiyun.com/CSU174712009/article/details/113769835

jsp传参乱码

https://blog.youkuaiyun.com/qq_39504612/article/details/124529453?spm=1001.2014.3001.5502