The server time zone value '???ú±ê×??±??' is unrecognized or represents more than one time zone.错误解决办法以及原因

### Error querying database.  Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is org.apache.commons.dbcp.SQLNestedException: Cannot create PoolableConnectionFactory (The server time zone value '???ú±ê×??±??' 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.)
### The error may exist in file [E:\Software Istall\Eclipse Project\Tomcat\Tomcat_9.0\apache-tomcat-9.0.21\wtpwebapps\chuan_zang_help\WEB-INF\classes\cn\ydyfc\chuan_zang_help\mapper\AdminMapper.xml]
### The error may involve cn.ydyfc.chuan_zang_help.dao.AdminMapper.selectAllAdmins
### The error occurred while executing a query
### Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is org.apache.commons.dbcp.SQLNestedException: Cannot create PoolableConnectionFactory (The server time zone value '???ú±ê×??±??' 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.)] with root cause
com.mysql.cj.exceptions.InvalidConnectionAttributeException: The server time zone value '???ú±ê×??±??' 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.
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)

错误提示：The server time zone value '???ú±ê×??±??' is unrecognized or represents more than one time zone.

错误原因：多方查询发现是mysql得时区问题，比实际时间要早，所以需要在JDBC得连接URL后面加上serverTimezone=GMT即可解决问题，低版本得5.xxx没有存在这个时区问题，8.0这些才存在这个问题