如何选择jpa spring boot中作为对象的特定列

@Query("SELECT u.name, u.age FROM User u")
List<Object[]> findNameAndAge();

public interface UserNameAndAge {
    String getName();
    Integer getAge();
}

public interface UserRepository extends JpaRepository<User, Long> {
    List<UserNameAndAge> findByName(String name);
}

public class UserNameAndAgeDTO {
    private String name;
    private Integer age;

    public UserNameAndAgeDTO(String name, Integer age) {
        this.name = name;
        this.age = age;
    }

    // getters and setters
}

public interface UserRepository extends JpaRepository<User, Long> {
    @Query("SELECT new com.example.dto.UserNameAndAgeDTO(u.name, u.age) FROM User u")
    List<UserNameAndAgeDTO> findNameAndAge();
}