jdbc连接MySQL报以下错误处理方案

连接MySQL数据库时报以下更改驱动包位置
Loading class `com.mysql.jdbc.Driver'. 
This is deprecated. The new driver class is `com.mysql.cj.jdbc.Driver'. 
The driver is automatically registered via the SPI and manual loading of the driver class is generally 
unnecessary.

com.mysql.jdbc.Driver改为com.mysql.cj.jdbc.Driver继续报下面的错误
连接MySQL数据库时报以下时区错误信息：
Exception in thread "main" 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.

 解决方案：
为URL添加参数serverTimezone=UTC即可，这里的时区可以根据自己数据库的设定来设置（GMT/UTC ）。
jdbc:mysql://localhost:3306/dbname?useUnicode=true&characterEncoding=UTF-8&useJDBCComp
liantTimezoneShift=true&useLegacyDatetimeCode=false&serverTimezone=UTC