1. If the URL string database without serverTimezone = GMT% 2B8 and the database area is not set, an error will be reported as follows
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) ~[na:1.8.0_161]
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[na:1.8.0_161]
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[na:1.8.0_161]
at java.lang.reflect.Constructor.newInstance(Constructor.java:423) ~[na:1.8.0_161]
at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:59) ~[mysql-connector-java-8.0.11.jar:8.0.11]
at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:83) ~[mysql-connector-java-8.0.11.jar:8.0.11]
at com.mysql.cj.util.TimeUtil.getCanonicalTimezone(TimeUtil.java:128) ~[mysql-connector-java-8.0.11.jar:8.0.11]
at com.mysql.cj.protocol.a.NativeProtocol.configureTimezone(NativeProtocol.java:2201) ~[mysql-connector-java-8.0.11.jar:8.0.11]
at com.mysql.cj.protocol.a.NativeProtocol.initServerSession(NativeProtocol.java:2225) ~[mysql-connector-java-8.0.11.jar:8.0.11]
at com.mysql.cj.jdbc.ConnectionImpl.initializePropsFromServer(ConnectionImpl.java:1391) ~[mysql-connector-java-8.0.11.jar:8.0.11]
at com.mysql.cj.jdbc.ConnectionImpl.connectWithRetries(ConnectionImpl.java:895) ~[mysql-connector-java-8.0.11.jar:8.0.11]
... 77 common frames omitted
MySQL driver version 2.pom.xml device must be installed and the corresponding version of MySQL
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>6.0.6</version>
</dependency>
3.driver-class-name: com.cj.jdbc.Driver, MySQL driver version 6.x must be at least