我知道在JPA中可以将列表传递给命名查询,但是如何在NamedNativeQuery中传递呢?我尝试了许多方法,但仍然无法将列表直接传递给NamedNativeQuery。有人知道如何将列表传递给NamedNativeQuery的in子句吗?非常感谢!
以下是NamedNativeQuery:
@NamedNativeQuery(
name="User.findByUserIdList",
query="select u.user_id, u.dob, u.name, u.sex, u.address from user u "+
"where u.user_id in (?userIdList)"
)
并且它是这样调用的:
List<Object[]> userList = em.createNamedQuery("User.findByUserIdList").setParameter("userIdList", list).getResultList();
然而结果并不如我所期望。
System.out.println(userList.size()); //output 1
Object[] user = userList.get(0);
System.out.println(user.length); //expected 5 but result is 3
System.out.println(user[0]); //output MDAVERSION which is not a user_id
System.out.println(user[1]); //output 5
System.out.println(user[2]); //output 7