springboot數據庫連接異常:java.sql.SQLException問題的解決

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

問題描述

• 問題：

org.springframework.transaction.CannotCreateTransactionException: Could not open JPA EntityManager for transaction; nested exception is org.hibernate.exception.GenericJDBCException: Unable to acquire JDBC Connection

• 找到原因

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

• 問題查找

application.yml文件

#2、數據庫連接池
datasource:
	drive-class-name: com.mysql.cj.jdbc.Driver
	url: jdbc:mysql://localhost:3328/moms?userUnicode=true&characterEncoding=utf8
	data-username: root
	data-password: 123

問題解決

application.yml配置文件中username和password前面不能加 data-

#2、數據庫連接池
datasource:
	drive-class-name: com.mysql.cj.jdbc.Driver
	url: jdbc:mysql://localhost:3328/moms?userUnicode=true&characterEncoding=utf8
	username: root
	password: 123

總結

具體緣由以后再說，任務要緊