Three ways solving Spring Boot Cannot determine embedded database driver class for database type NONE

If you don’t have a DataSource configured for your spring boot application, when you run spring boot application, it tries to configure the DataSource and throws this error message when there is no configuration provided.

We have three ways to slove this:

1) If you don't need any data source, just exclude it as below:

@SpringBootApplication
@EnableAutoConfiguration(exclude={DataSourceAutoConfiguration.class})
public class SpringBootDemoApplication { }

2) If you need ds just for test purpose, say using an embedded DB like HSqldb, just add the dependency in your pom or yml file:

<dependency>

 <groupId>org.hsqldb</groupId>

 <artifactId>hsqldb</artifactId>

 <scope>runtime</scope>

</dependency>

3) Or you want to have your own external DB configuration, you need to provided DS information in spring boot configuration file, generally add below into application.properties is fine:

spring.datasource.url=xxx

spring.datasource.* is the default prefix for spring boot data source configuration, if you use other prefix, you may need add your own ds configuration file.