Play Framework: package play.db.jpa not found

问题:

I am trying to create a play 2.3.4 application with Spring Data JPA. This tutorial says it is good practice to let my model class inherit from play.db.jpa.Model. Therefore I added import play.db.jpa.* to my code and let my model class to extend from Model, However, when I reloaded the application, I got an error message, that Model is an unknown symbol. Anybody knows how to inherit from Model?

回答1:

play.db.jpa.Model does not exists in Play2 (there is only a Model class for Ebean ORM). So dont extend that class. In fact for what I can tell, even on Ebean, extending it does not bring any improvement.

Also check that you have in your libraryDependencies (build.sbt file) the following entries

javaJpa,
"org.hibernate" % "hibernate-entitymanager" % "4.3.6.Final"

(you can replace the second with a different implementation/version if you need). After that you can run activator update in the terminal.

Using Play1 instructions in Play2 will not work in many cases. Play1 and Play2 are two very different frameworks. The page you are looking for is probably this.