Spring-boot default EntityManager

Question

Does spring-boot have a default EntityManager. I am setting one up right now but I noticed when my project loads I see this:

LocalContainerEntityManagerFactoryBean : Building JPA container EntityManagerFactory for persistence unit 'default'

Is this a default EntityManager and if so, how do I access it?

Thank you in advance.

just `@Autowire` it in your class – pvpkiran Apr 11 '18 at 12:55 — pvpkiran, Apr 11 '18 at 12:55

score 3 · Answer 1 · answered Apr 11 '18 at 13:01

3

You can use the @PersistenceContext annotation to inject the entity manager into your spring beans:

@PersistenceContext
EntityManager em;

answered Apr 11 '18 at 13:01

David SN

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score 1 · Answer 2 · answered Apr 11 '18 at 13:06

When using spring-boot-starter-data-jpa, all you need to do is configure the data source using the spring.datasource.{url, username, password, driver-class-name} properties in application.properties.

If you want to use an in-memory database like H2 for development, not even that is necessary. Just include the database as a dependency.

Once you do that, you should be able to inject the EntityManager into your beans.

Spring-boot default EntityManager

2 Answers2