Question

我有一个Order表

order_id | customer_id | submit_date | order_number | ....

目前，我使用customer_id

提取基于jpa named query的所有记录

public List<Order> readOrders(Long customerId){
 Query query = em.createNamedQuery("select order from com.mycompany.Order where order.customer.id = :customerId");
 query.setParameter("customerId", customerId);
 return query.getResultLis();
}

上面的查询工作正常，它从db获取所有记录，但我的任务是仅从过去的15 days获取记录，我知道sql query

select * from Oder where SUBMI_DATE between date_sub(sydate(), interval 15 day) and sydate() and customer_id = 101;

上面的sql query工作正常，但我的问题我不知道如何将sql query转换为jpa named query以上任何人都可以请求帮助

Answer 1

假设您的对象sql SUBMI_DATE等效于submitDate

public List<Order> readOrders(Long customerId){
  Query query = em.createNamedQuery("select order from com.mycompany.Order where order.customer.id = :customerId and order.submitDate > :specificDate");
  // I use Joda time you can use java.util.Date directly
  DateTime specificDate= new DateTime().minusDays(15);

  query.setParameter("customerId", customerId);
  query.setParameter("specificDate", specificDate.toDate(),TemporalType.DATE);

 return query.getResultLis();
}

如何将mysql查询转换为jpa命名查询

1 个答案: