mysql 时区问题：The server time zone value '???ú±ê×??±??' is unrecognized

org.apache.ibatis.exceptions.PersistenceException:
### Error querying database. Cause: java.sql.SQLException: The server time zone value '???ú±ê×??±??' is unrecognized or represents more than one time zone.

解决办法 指定时区：

jdbc:mysql://localhost:3306/web_sm?serverTimezone=CTT