整合spring boot项目过程中出现的，用了最新的mysql 连接驱动，用的是8.0.13。

具体的报错如下

Loading class `com.mysql.jdbc.Driver'. This is deprecated. The new driver class is `com.mysql.cj.jdbc.Driver'. The driver is automatically registered via the SPI and manual loading of the driver class is generally unnecessary.

根据提示其实只需要将配置文件的com.mysql.jdbc.Driver改成com.mysql.cj.jdbc.Driver即可。