SpringBoot Access denied for user ''@'localhost' (using password: NO)

springboot做demo出現錯誤，java.sql.SQLException：對用戶''@ localhost'拒絕訪問（使用密碼：NO）
java.sql.SQLException: Access denied for user ''@'localhost' (using password: NO)
根據提示發現是“ ”用戶訪問而不是“root”用戶，估計是idea提示寫的代碼 data-username: root 格式不對於是嘗試更改，最終成功

更改前
spring:
 mvc:
 view:
 prefix: /WEB-INF/views/
 suffix: .jsp
 datasource:
 url: jdbc:mysql://127.0.0.1:3306/sqtest
 data-username: root
 data-password: 123456
 driver-class-name: com.mysql.jdbc.Driver

更改后

datasource:
 url: jdbc:mysql://127.0.0.1:3306/sqtest
 username: root
 password: 123456
 driver-class-name: com.mysql.jdbc.Driver