填坑：Access denied for user ‘‘@‘localhost‘ (using password: NO)

Spring启动项目时出现此问题：

问题竟然在于IDEA的自动填充!!!

----------------正确--------------
spring:
  datasource:
    driver-class-name: com.mysql.cj.jdbc.Driver
    url: jdbc:mysql://localhost:3306/db01?useUnicode=true&characterEncoding=utf-8
    username: root
    password: 123456

---------------错误-------------------
spring:
  datasource:
    driver-class-name: com.mysql.cj.jdbc.Driver
    url: jdbc:mysql://localhost:3306/db01?useUnicode=true&characterEncoding=utf-8
    username: root
    data-password: 123456   #自动填充的是 data-password  然后就报错using password: NO