Caused by: com.mysql.cj.exceptions.InvalidConnectionAttributeException: The server time zone value '...-优快云博客

本文链接：https://blog.youkuaiyun.com/maxchenBug/article/details/102849644

在进行秒杀项目开发过程中，遇到因服务器时区配置不当导致的数据库连接异常。通过调整JDBC连接字符串中的时区参数及更新MySQL驱动版本，最终解决了问题。

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今天自己做那个秒杀项目时候，开始是好的，一会就出现如上错误

Caused by: com.mysql.cj.exceptions.InvalidConnectionAttributeException: The server time zone value '�й��׼ʱ��' 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.GeneratedConstructorAccessor38.newInstance(Unknown Source) ~[na:na]
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[na:1.8.0_144]
at java.lang.reflect.Constructor.newInstance(Constructor.java:423) ~[na:1.8.0_144]

开始是这样的，

jdbc:mysql://127.0.0.1:3306/miaosha?useUnicode=true&characterEncoding=utf-8&allowMultiQueries=true&useSSL=false

然后后修改下连接：

jdbc:mysql://127.0.0.1:3306/miaosha?characterEncoding=utf-8&useSSL=false&serverTimezone=UTC

后来还是报错，不过错误不一样了，

2019-10-11 11:02:45.268 ERROR 14300 --- [Create-15070576] com.alibaba.druid.pool.DruidDataSource   : create connection error

java.sql.SQLException: validateConnection false
    at com.alibaba.druid.pool.DruidAbstractDataSource.validateConnection(DruidAbstractDataSource.java:1199) ~[druid-1.0.5.jar:1.0.5]
    at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1422) ~[druid-1.0.5.jar:1.0.5]
    at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:1649) ~[druid-1.0.5.jar:1.0.5]

然后就修改了连接的版本：

 <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.0.2</version>

        </dependency>

就正常了