How to Fix the "Cannot Determine Embedded Database Driver Class for Database Type NONE" Exception in Spring Boot

       I published my last blog post about a year ago. I apologize to my readers for the long gap in posting due to some personal reasons.

Today, we'll discuss a common issue that you may encounter when starting a Spring Boot application without configuring a database.

If you are a Spring Boot beginner and try to run your application without configuring a datasource, you may encounter the following exception:

*************************** APPLICATION FAILED TO START *************************** Description: 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 (no profiles are currently active). - [report:42] - [] - []

The above issue we can solve in two ways as follows,

1) Fixing with application.properties file

you can add the fallowing line in application.properties file,

spring.autoconfigure.exclude=org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration

2) Fixing with Configuration code

You can exclude DataSourceAutoConfiguration by using the @EnableAutoConfiguration annotation, as shown below:

@SpringBootApplication
@EnableAutoConfiguration (exclude = { DataSourceAutoConfiguration.class })
public class SpringbootApplication {
	SpringApplication.run(SpringbootApplication.class, args);
}

Or, you can also add the exclusion directly to the @SpringBootApplication annotation itself.

@SpringBootApplication (exclude = { DataSourceAutoConfiguration.class })

public class SpringbootApplication {
	SpringApplication.run(SpringbootApplication.class, args);
}

Thank you for visiting blog.