Spring Boot项目启动时报错：Cannot determine embedded database driver class for database type NONE
报错原因这是因为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。因为工程中没有关于dataSource相关的配置信息，所以当spring创建dataSource bean因缺少相关的信息就会报错
解决办法解决办法有两种：一种是修改启动类注解，另一种是配置数据源
修改注解在启动类中修改注解@SpringBootApplication为：
@SpringBootApplication(exclude = {DataSourceAutoConfiguration.class, HibernateJpaAutoConfiguration.class})
配置数据源
在application.yml中配置：
# 数据源配置
spring:
application:
name: microservice-student
datasource:
type: com.alibaba.druid.pool.DruidDataSource
driver-class-name: com.mysql.jdbc.Driver
url: jdbc:mysql://localhost:3306/db_springcloud?useUnicode=true&characterEncoding=UTF-8&serverTimezone=UTC
username: root
password: 123456
jpa:
hibernate:
ddl-auto: update
show-sql: true
PS.
来源：[springboot常见问题之启动报错Cannot determine embedded database](
