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Flink 处理好数据后，需要 Sink 到 MySQL 保存，连接的时候报错。

1. 错误描述

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)	... 21 more

2. 解决办法

在 jdbc 连接后面指定 serverTimezone=UTC 就可以了。

'url' = 'jdbc:mysql://localhost:3306/wxc_auto?useUnicode=true&characterEncoding=UTF-8&serverTimezone=UTC'

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