jdba访问mysql_mysql连接出现问题记录

解决：Caused by: com.mysql.cj.exceptions.InvalidConnectionAttributeException: The server time zone valu

//报错信息

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:61)

at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:85)

at com.mysql.cj.util.TimeUtil.getCanonicalTimezone(TimeUtil.java:132)

at com.mysql.cj.protocol.a.NativeProtocol.configureTimezone(NativeProtocol.java:2241)

at com.mysql.cj.protocol.a.NativeProtocol.initServerSession(NativeProtocol.java:2265)

at com.mysql.cj.jdbc.ConnectionImpl.initializePropsFromServer(ConnectionImpl.java:1319)

at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:966)

at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:825)

... 6 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：

解决：Loading class `com.mysql.jdbc.Driver‘. This is deprecated. The new driver class is `com.mysql.cj.jdb

措施：现在按照最新官方提示支持将com.mysql.jdbc.Driver  改为  com.mysql.cj.jdbc.Driver

提示：并不是修改maven中对于数据库加载驱动的以来名称

driver = "com.mysql.jdbc.Driver";//更改为

driver = "com.mysql.cj.jdbc.Driver";//报错即可消失

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