1、解决方法：

报错信息为:

Caused by: com.mysql.cj.exceptions.InvalidConnectionAttributeException: The server time zone value 'Öйú±ê׼ʱ¼ä' 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)

    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)

    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)

    at java.lang.reflect.Constructor.newInstance(Constructor.java:423)

    at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:59)

    at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:83)

    at com.mysql.cj.util.TimeUtil.getCanonicalTimezone(TimeUtil.java:128)

    at com.mysql.cj.protocol.a.NativeProtocol.configureTimezone(NativeProtocol.java:2201)

    at com.mysql.cj.protocol.a.NativeProtocol.initServerSession(NativeProtocol.java:2225)

    at com.mysql.cj.jdbc.ConnectionImpl.initializePropsFromServer(ConnectionImpl.java:1391)

    at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:993)

    at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:852)

    ... 17 more

此问题为时区问题,在 JDBC 的连接 url 部分加上 serverTimezone=UTC 即可。
如图：

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