使用idea在Springboot项目启动时报错描述 Cannot determine embedded database driver class for database type NONE

Springboot项目启动时报错
Cannot determine embedded database driver class for database type NONE
提示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 (no profiles are currently active).

原因是pom中引入了mybatis-spring-boot-starter依赖 ，Spring boot默认会加载org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration类，DataSourceAutoConfiguration类使用了@Configuration注解向Spring注入了DataSource bean。因为工程中缺少关于DataSource相关的配置信息，当Spring创建DataSource bean因缺少相关的信息就会报错。
解决方法：
可以在主程序上加@EnableAutoConfiguration(exclude = {DataSourceAutoConfiguration.class})，如果加了这个注解之后又报错Attribute should be specified via @SpringBootApplication就删了上述标签，直接在@SpringBootApplication标签后加(exclude = {DataSourceAutoConfiguration.class})

搞定。
但要是你项目需要数据库，决不能配@SpringBootApplication(exclude = {DataSourceAutoConfiguration.class})，可以试试向pom依赖中添加依赖
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
<scope>runtime</scope>
</dependency>

借鉴：https://blog.youkuaiyun.com/Master_Shifu_/article/details/80420099