How do you handle with bulk deleting by an array of IDs in Spring Data JPA?

Question

Now I have a class User, I get a request data of an array from the jsp or html.

list this Integer[] arr=[5,6,9,10,62,52,21]

Answer 1

Suppose you have a UserRepository like:

public interface UserRepository extends JpaRepository {}

Then you can add a modifying query method like following into your UserRepository:

/**
 * Delete all user with ids specified in {@code ids} parameter
 * 
 * @param ids List of user ids
 */
@Modifying
@Query("delete from User u where u.id in ?1")
void deleteUsersWithIds(List ids);

Finally you can change your bulk deletion service like following:

@Transactional
@Override
public void deleteSomeUser(Integer[] ids) {
    oneRepository.deleteUsersWithIds(Arrays.asList(ids));
}

This will generate a delete query like:

Hibernate: delete from users where id in (? , ? , ?)

Also be aware of Self Invocation issues when you calling one public advised method from another one.