Dependências Maven

<dependency>
	<groupId>org.springframework.boot</groupId>
	<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>

<dependency>
	<groupId>com.h2database</groupId>
	<artifactId>h2</artifactId>
	<scope>runtime</scope>
</dependency>

Configuração do Banco de Dados H2

# H2 Connection
spring.datasource.url=jdbc:h2:mem:testdb
spring.datasource.username=sa
spring.datasource.password=

# H2 Client
spring.h2.console.enabled=true
spring.h2.console.path=/h2-console

# Show SQL
spring.jpa.show-sql=true
spring.jpa.properties.hibernate.format_sql=true