How to configure spring-boot to use file based H2 database

Question

I have successfully created a spring boot application that uses the H2 embedded database in-memory. I would now like to change this to a file based version that will persist

Answer 1

I am adding this answer to avoid confusion and further research.

Actually I have the same problem and none of the answer worked for me completely rather than the mix for some answers worked.

Here is the minimal configuration which is required to persist H2 db in spring boot.

application.properties

# H2
spring.h2.console.enabled=true
spring.h2.console.path=/h2
# Datasource
spring.datasource.url=jdbc:h2:file:~/spring-boot-h2-db
spring.datasource.username=sa
spring.datasource.password=
spring.datasource.driver-class-name=org.h2.Driver
spring.jpa.hibernate.ddl-auto=update

Here spring.jpa.hibernate.ddl-auto=update does the trick. Nothing else is required.

No need to add spring-boot-starter-jdbc in pom.xml

No need to add any parameter in jdbc url.