Java进阶：The driver is automatically registered via the SPI and manual loading of the driver class is

问题

原因：

升级后的mysql驱动类，Driver位置由com.mysql.jdbc.Driver 变为com.mysql.cj.jdbc.Driver

解决方式：

将数据配置文件里driver-class-name: com.mysql.jdbc.Driver修改为如下driver-class-name: com.mysql.cj.jdbc.Driver