com.mysql.cj.core.exceptions.InvalidConnectionAttributeException: The server time zone value ‘******‘ 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)

解決方法：

　jdbc:mysql://localhost:3306/mybatis?characterEncoding=utf-8

　　換成：

　　jdbc:mysql://localhost:3306/mybatis?serverTimezone=CTT&useUnicode=true&characterEncoding=utf-8&allowMultiQueries=true

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