Spring Data Spring Data Packt .pdf Checked Apr 2026

Example:

// In repo: List<UserSummary> findByLastName(String last); @DataJpaTest @AutoConfigureTestDatabase(replace = Replace.NONE) // use real DB if needed class UserRepoTest @Autowired private TestEntityManager entityManager; @Autowired private UserRepo repo; @Test void shouldFindByEmail() User user = new User("test@example.com"); entityManager.persist(user); Optional<User> found = repo.findByEmail("test@example.com"); assertThat(found).isPresent(); spring data spring data packt .pdf checked

@CreatedBy private String createdBy;

I notice you're asking for a "deep guide" related to a specific PDF: Spring Data (Packt) — but you've also added "spring data packt .pdf checked." Example: // In repo: List&lt

Example: