MySQL数据库连接报错

数据库版本8.x和其他版本配置有区别:

1. 驱动依赖和连接

报错: Could not create connection to database server - java mysql connector

8.x

        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>8.0.11</version>
        </dependency>

com.mysql.cj.jdbc.Driver

其他版本

        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.25</version>
        </dependency>

com.mysql.jdbc.Driver

2. 数据库连接配置

报错: The Server time zone value 'XXXXX' 乱码

8.x有时区问题,加后缀:?useUnicode=true&characterEncoding=utf8

其他有字符编码问题,加后缀:?serverTimezone=UTC

参考:

• https://blog.csdn.net/zhouzhiwengang/article/details/81024967
• https://blog.csdn.net/Wei_NiZi/article/details/81509822