Access denied for user ''@'localhost' (using password: NO)之idea坑~

idea啟動sql連接遠程數據庫時發生錯誤：

發現是sql連接配置問題：

spring:
  datasource:
    data-username: root
    data-password: 123456
    url: jdbc:mysql://localhost:3307/jdbc?useSSL=false
    driver-class-name: com.mysql.jdbc.Driver

改成：

spring:
  datasource:
    username: root
    password: 123456
    url: jdbc:mysql://locaohost:3307/jdbc?useSSL=false
    driver-class-name: com.mysql.jdbc.Driver

坑點在於這是idea自己提示的：