问题解决：Loading class `com.mysql.jdbc.Driver‘. This is deprecated.

问题描述：

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.

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问题原因：

  这是最新版MySQL的jdbc驱动包名（路径）引发的问题。

解决方法：

  将数据配置文件里的

jdbc.driver=com.mysql.jdbc.Driver

  修改为

jdbc.driver=com.mysql.cj.jdbc.Driver