首先确认在目录中的resourses文件夹下建立resources\db.properties
jdbc.driver=com.mysql.jdbc.Driverjdbc.url=jdbc:mysql://localhost:3306/mybatis?useUnicode=true&characterEncoding=UTF-8&useSSL=false&use&serverTimezone=Asia/Shanghaijdbc.username=rootjdbc.password=root
如果还没有解决问题，可能是依赖的版本过低，更新依赖的版本mysql，mybatis
eg：
<!-- /artifact/org.mybatis/mybatis --><!-- mybatis坐标 --><dependency><groupId>org.mybatis</groupId><artifactId>mybatis</artifactId><version>3.5.5</version></dependency><!-- /artifact/mysql/mysql-connector-java --><!-- mysql驱动坐标 --><dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId><version>8.0.21</version></dependency>
