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参考阅读

Hibernate连接MYSQL失败提示时区错误该怎么解决？ - segmentfault
MySQL Connector/J 6.x jdbc.properties 配置, mysql-connector-java-6.0.4.jar 异常 - cnbolg
The server time zone value '�й���׼ʱ��' is unrecognized or represents more than one time zone. - csdn
【坑】The server time zone value '�й���׼ʱ��' is unrecognized or represents more than one time zone - cnbolg

问题现象

com.mysql.cj.core.exceptions.InvalidConnectionAttributeException: The server time zone value '�й���׼ʱ��' 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

方案1

在项目代码-数据库连接URL后，加上 （注意大小写必须一致）?serverTimezone=UTC

方案2

在mysql中设置时区，默认为SYSTEM set global time_zone='+8:00'

set global time_zone='+8:00';

问题原因

使用了Mysql Connector/J 6.x以上的版本，然后就报了时区的错误