春天带有休眠的多个SessionFactory

Question

I am trying to add two MySql database in spring project with hibernate. My question is that what should i use multiple SessionFactory or go ahead with spring boot and why?. If i use sessionfacotry then will be there any performance issue on project or is there any other alternative that i can use for adding multiple database?

Answer 1

you can add several persistence units, obviously each PersitenceContext must have its own properties (url, user, password, driver,...), for example:

@PersitenceContext("a")
private EntityManager emA;

@PersitenceContext("b")
private EntityManager emB;