关于这个问题,是在使用Activiti的时候遇到的,如下图:
具体内容如下:
Caused by: org.apache.ibatis.exceptions.PersistenceException:
### Error getting a new connection. Cause: java.sql.SQLException: 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. ### Cause: java.sql.SQLException: 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 org.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:30) at org.apache.ibatis.session.defaults.DefaultSqlSession.getConnection(DefaultSqlSession.java:300) at org.activiti.engine.impl.db.DbSqlSession.isTablePresent(DbSqlSession.java:1011) … 38 more Caused by: java.sql.SQLException: 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 com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:127) at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:95) at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:87) at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:61) at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:71) at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:76) at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:862) at com.mysql.cj.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:444) at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:230) at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:226) at java.sql.DriverManager.getConnection(Unknown Source) at java.sql.DriverManager.getConnection(Unknown Source) at org.apache.ibatis.datasource.unpooled.UnpooledDataSource.doGetConnection(UnpooledDataSource.java:201) at org.apache.ibatis.datasource.unpooled.UnpooledDataSource.doGetConnection(UnpooledDataSource.java:196) at org.apache.ibatis.datasource.unpooled.UnpooledDataSource.getConnection(UnpooledDataSource.java:93) at org.apache.ibatis.datasource.pooled.PooledDataSource.popConnection(PooledDataSource.java:385) at org.apache.ibatis.datasource.pooled.PooledDataSource.getConnection(PooledDataSource.java:89) at org.apache.ibatis.transaction.jdbc.JdbcTransaction.openConnection(JdbcTransaction.java:138) at org.apache.ibatis.transaction.jdbc.JdbcTransaction.getConnection(JdbcTransaction.java:60) at org.apache.ibatis.session.defaults.DefaultSqlSession.getConnection(DefaultSqlSession.java:298) … 39 more 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(Unknown Source) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source) at java.lang.reflect.Constructor.newInstance(Unknown Source) 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)
… 52 more
问题分析:
由错误信息可知:无法检查表是否已经使用元数据显示,在创建表的时候,不能正常连接,在往下看,The server time zone value ,关于这个版本,在Mysql服务的新版中种最为常见,因为我使用的环境为最新的MySLQ社区版8.0.11,在新版的数据库使用的时区与本地时区有区别,标准时区使用的是Unix元年的时间为起始点到当前时间中间所做的动作。国际标准失去与本地相差 8 个小时。
解决办法:
经过上面的问题分析后,该问题的解决办法有两种;
一种:通过修改数据库变量实现,如下图:
二种:在连接MySQL服务时,直接指定时区为UTC,即可,将原来的连接
jdbc:mysql://000.000.000.000:3306/etc?useUnicode=true&characterEncoding=utf8
改为现在的:
jdbc:mysql://000.000.000.000:3306/etc?serverTimezone=UTC
更改后如下图:
注意:UTC一定要大写,否则无效!!!
解决完成后,再次连接MySQL数据库服务器,成功连接了,如下图:
好了,关于 java.sql.SQLException: The server time zone value 。。。 就写到这儿了,如果还有什么疑问或遇到什么问题欢迎扫码提问,可以给我留言。 歇后语:“ 共同学习,共同进步 ”,也希望大家多多关注CSND的IT社区。
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