从@Query批注中获取具有nativeQuery true J​​PARepository的两列

Question

I have a entity user

@Entity
@Table(name="user")
public class User{

@Id
@Column(name="id")
private int id;
@Column(name="reward")
private double reward;

@Column(name="reward_id")
private double rewardId;

//Getter & Setters
}

Now what i need is to get reward and rewardId from @Query annotation from other table in DB at once.

I have tried using

@Query(value="SELECT reward,reward_id from Table_name")
 public List getRewards();

but when run it says no property associated with bean. And when i Select only single column it give in my query it runs perfectly

Please help as i am new to JPA and Hibernate Thanks in advance!!

Answer 1

Just use Projection :

public interface RewardProjection {
    Double getReward();
    Double getRewardId();
}

@Query(value = "select t.reward as reward, t.reward_id as rewardId from table_name t", nativeQuery = true)
public List<RewardProjection> getRewards();