如何将 SessionFactory 查询转换为 JPA 查询？

Question

我正在使用 SpringBoot.

将普通 Spring 应用程序转换为 Spring

代码中有些地方使用 SessionFactory 进行查询：

public List<Enrollment> findByOrganizationAndYear(Organization organization, int year) {

    String queryString = "from Enrollment as enrollment where enrollment.organization.id = :organizationId AND YEAR(enrollment.event.fromDate) = :year";
    Query query = sessionFactory.getCurrentSession().createQuery(queryString);
    query.setParameter("organizationId", organization.getId());
    query.setParameter("year", year);

    return query.list();

}

如何将其转换为普通的 JPA 查询？或者我需要写一个自定义的 @Query 吗？

谢谢。

Answer 1

我认为@Query注解更加灵活。

public interface EnrollmentRepository extends Repository<Enrollment, Long> {

    // Spring Data query with field names 
    List<Enrollment> findByOrganizationAndEventFromDate(Organization organization, int year);

    // Or you can write your custom query 
    @Query("select e from Enrollment e where e.organization.id = :organizationId and e.event.fromDate = :year")
    List<Enrollment> findAll(@Param("organizationId") Long organizationId, @Param("year") int year);

}

如何将 SessionFactory 查询转换为 JPA 查询？

How to convert SessionFactory query to JPA query?

spring

sessionfactory

spring-data-jpa

spring-boot