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.
以上错误是由于驱动版本写错了，原始的是：com.mysql.jdbc.Driver
需要改为：com.mysql.cj.jdbc.Driver
报错：
不报错