### 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.
Error reason: many inquiries found to be a problem area, earlier than the actual time when mysql too, so it is necessary to obtain the connection URL followed by the JDBC serverTimezone = GMT to solve the problem, the low version was 5.xxx not have this time zone problem, these 8.0 only the existence of this problem