如何在Spring Data Rest的GET/find中对实体进行计算？

@RepositoryRestResource(collectionResourceRel = "yourEntity", path = "yourEntity")
public interface YourEntityRepository extends JpaRepository<YourEntity, Long> {
    @Query("SELECT yourEntity, yourEntity.field1 + yourEntity.field2 AS calculatedField FROM YourEntity yourEntity")
    List<Object[]> findWithCalculation();
}

@Entity
public class Product {
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;
    
    private String name;
    
    private double price;
    
    private double discount;
    
    // getters and setters
}

@RepositoryRestResource(collectionResourceRel = "products", path = "products")
public interface ProductRepository extends JpaRepository<Product, Long> {
    @Query("SELECT product, product.price * (1 - product.discount) AS discountedPrice FROM Product product")
    List<Object[]> findWithDiscountedPrice();
}