将外部jar中的orm xml加载到Spring Boot中

Question

I have a maven spring project called core-project jar which has orm and persistence xml files and defined entities both in Annotation and xml. Now I have another spring boot project which utilizes this core project to initialize persistence with. I am able to get the annotated entities(ie with @Entity ) scanned when defining @EntityScan(packages) in SpringBoot Main class but none of the entities are scanned which are defined in orm xml (ie <entity> ).

Getting error as Unable to locate persister for entity

But when I run the same project as mvn spring-boot:run , everything runs like charm. When I do a java -jar I end up in above issue.

I have tried setting up LocalContainerEntityManagerFactoryBean and setting packages to scan but no luck.

Let me know what needs to done for a spring boot to load orm xml based entities from external jar.

Note: orm and persistence xmls are part of core-project, we dont want it in spring boot project.

Answer 1

You could try to create a persistence.xml in the Spring Boot project to reference the jar file:

<jar-file>core.jar</jar-file> 

I never done that with spring boot but maybe this works as well as with "normal" Java EE apps.