java.sql.SQLException: Access denied for user ''@'localhost' (using password: NO)

在yml的配置文件里，原本是这样的 

spring:
  datasource:
    data-username: root
    data-password: 123456
    url: jdbc:mysql:///jdbc
    driver-class-name: com.mysql.jdbc.Driver

 

犯了一个和低级的错误

连按enter是真的不好

 

正确的写法是

spring:
  datasource:
    username: root
    password: 123456
    url: jdbc:mysql:///jdbc
    driver-class-name: com.mysql.jdbc.Driver