如何获取JPA保存的object的id？

Question

I want to get the ID of the object saved to the database by JPA. Consider an object person , I save this object using

personrepo.save(person)

How can I get the ID of this object?

Note: ID is the only unique column in this object.

Answer 1

If you work with Spring Data, method save returns persisted object with generated ID. So:

person = personrepo.save(person);
var id = person.getId();

For more details, see documentation .