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.

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.

数据库驱动com.mysql.jdbc.Driver'已经被弃用了、应当使用新的驱动com.mysql.cj.jdbc.Driver'
MySQL5用的驱动url是com.mysql.jdbc.Driver，MySQL6以后用的是com.mysql.cj.jdbc.Driver。