Hibernate:如何将表与非外键的列连接起来

@Entity
@Table(name = "orders")
public class Order {
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;

    @Column(name = "order_number")
    private String orderNumber;

    // 其他属性...

    @ManyToOne
    @JoinColumn(name = "customer_id")
    private Customer customer;

    // getter和setter方法...
}

@Entity
@Table(name = "customers")
public class Customer {
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;

    @Column(name = "name")
    private String name;

    // 其他属性...

    @OneToMany(mappedBy = "customer")
    private List<Order> orders;

    // getter和setter方法...
}