java.sql.SQLException: The server time zone value '?й???????' is unrecognized..

mysql5.6.16使用jdbc连接时报错：

具体报错信息：
java.sql.SQLException: The server time zone value ‘?й???????’ is unrecognized or represents more than one time zone.
You must configure either the server or JDBC driver (via the serverTimezone configuration property) to use a more specifc time zone value if you want to utilize time zone support.

即，url里设置一下时区就行了

原：

spring.datasource.url=jdbc:mysql://localhost:3306/demo

改：

spring.datasource.url=jdbc:mysql://localhost:3306/demo?
useUnicode=true&characterEncoding=UTF-8&serverTimezone=Asia/Shanghai