[Springboot] Cannot determine embedded database driver class for database type NONE Act

Springboot 运行时出现:  Cannot determine embedded database driver class for database type NONE  Action:  If you want an embedded database please put a supported one on the classpath. If you have database settings to be loaded from a particular profile you may need to active it

两个解决办法， 1）在SpringApplication class上添加注释@EnableAutoConfiguration(exclude={DataSourceAutoConfiguration.class})。

2）在application.properties中添加spring.datasource.url=jdbc:mysql://localhost/my_database。