mysql8的连接properties
prop.driverClassName=com.mysql.cj.jdbc.Driver
prop.url=jdbc:mysql:///数据库名?useUnicode=true&characterEncodign=UTF-8&serverTimezone=UTC
prop.driverClassName=com.mysql.cj.jdbc.Driver
prop.url=jdbc:mysql:///数据库名?useUnicode=true&characterEncodign=UTF-8&serverTimezone=UTC