mysql jdbc timezone
MySql的时区(serverTimezone)引发的血案
https://www.cnblogs.com/zhuitian/p/12436300.html
java 解决date 类型的时间插入mysql中差8小时
https://www.shangmayuan.com/a/d0aa20937e0f491091077ea1.html
spring.datasource.url=jdbc:mysql://localhost:3306/xxxdb?characterEncoding=utf8&useSSL=false&serverTimezone=CTT