老师您好，我的出现如下错误：
Description:

Failed to bind properties under ‘’ to com.zaxxer.hikari.HikariDataSource:

Property: driverclassname
Value: com.mysql.cj.jdbc.Driver
Origin: "driverClassName" from property source "source"
Reason: Failed to load driver class com.mysql.cj.jdbc.Driver in either of HikariConfig class loader or Thread context classloader

Action:

Update your application’s configuration
而且我再Terminal中运行 mysql.server start 提示：F:\Chrome\merchants>mysql.server start
’mysql.server’ 不是内部或外部命令，也不是可运行的程序
或批处理文件。