File based h2 persisted but not loaded in Spring Boot

I made a small application based on Spring Boot:

• spring-boot-starter-web
• spring-boot-starter-data-jpa

The application has simply one domain class Post.java. Accordingly there is a RestController and a DAO. The data is supposed to be persisted in a file based hsql db.

When the application is running everything seems fine. Data is stored. The h2 file is created and contains insert statements.

However, when I kill the application and start it a second time. No data is loaded. (As if a brand new db file was created, which overwrote the old one).

application.properties

spring.datasource.url = jdbc:h2:file:~/testdb spring.datasource.username = sa spring.datasource.password = sa spring.datasource.driverClassName = org.h2.Driver 

pom.xml

<!-- Spring Boot Web --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <!-- Spring Boot Data JPA --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-jpa</artifactId> </dependency> <!-- H2 DB --> <dependency> <groupId>com.h2database</groupId> <artifactId>h2</artifactId> <version>1.4.179</version> </dependency> 

PostDAO.java

public interface PostDAO extends JpaRepository<Post, Integer>{ public Post findByMessage(String message); } 

Post.java

@Entity public class Post { @Id @GeneratedValue(strategy=GenerationType.IDENTITY) private Long id; private String message; public Post(){ } public Post(String message) { super(); this.message = message; } public Long getId() { return id; } public void setId(Long id) { this.id = id; } public String getMessage() { return message; } public void setMessage(String message) { this.message = message; } }