报错信息：

Cannot load connection class because of underlying exception: com.mysql.cj.exceptions.WrongArgumentE

错误原因：

mysql驱动版本为8.0，数据库连接串的驱动和url要改成如下：

<property name="javax.persistence.jdbc.driver" value="com.mysql.cj.jdbc.Driver"/>

<property name="javax.persistence.jdbc.url" value="jdbc:mysql://127.0.0.1:3306/bili_jpa?useUnicode=true&amp;characterEncoding=UTF-8&amp;serverTimezone=Asia/Shanghai"/>