异常错误：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.
这个问题 是在我整合项目过程中出现的，用了最新的mysql 连接驱动
以前版本的jdbc.properties
jdbc.driverClass = com.mysql.dbc.Driver
jdbc.url = jdbc:mysql://127.0.0.1:3306/db?useUnicode=true&characterEncoding=utf8&serverTimezone=GMT
jdbc.username = root
jdbc.password = root123
现在按照最新官方提示支持将com.mysql.jdbc.Driver 改为 com.mysql.cj.jdbc.Driver
jdbc.driverClass = com.mysql.cj.jdbc.Driver
jdbc.url = jdbc:mysql://127.0.0.1:3306/db?useUnicode=true&characterEncoding=utf8&serverTimezone=GMT
jdbc.username = root
jdbc.password = root123