我有三个单独的实体：`dish（菜品）、kitchen（厨房）、restaurant（餐厅）` 和连接表 `many（多）`。
我的问题是，我如何在我的实体类中定义这种关系？
**厨房模型**
@Entity
@Table(name = "kitchen")
public class Kitchen {
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private long id;
    @Column(name = "kitchen_name")
    private String name;
    @Column(name = "kitchen_photo")
    private Blob photo;
}
**菜品模型**
@Entity
@Table(name = "dish")
public class Dish {
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private long id;
    @Column(name = "dish_name")
    private String dishName;
    @Column(name = "dish_photo")
    private Blob dishPhoto;
**餐厅模型**
@Entity
@Table(name = "restaurant")
public class Restaurant {
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private long id;
    @Column(name = "res_name")
    private String name;
    @Column(name = "res_rating")
    private double rating;
    @Column(name = "res_address")
    private String address;
    @Column(name = "res_number")
    private String number;
    @Column(name = "res_site")
    private String site;
    @Column(name = "res_price")
    private String price;
    @Column(name = "res_photo")
    private Blob photo;
连接表
**多对多模型**
@Entity
@Table(name = "many")
public class Many {
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private long id;
    @Column(name = "res_id")
    private long res_id;
    @Column(name = "kitchen_id")
    private long kitchen_id;
    @Column(name = "dish_id")
    private long dish_id;
    @Column(name = "many_name")
    private String name;
    @Column(name = "many_rating")
    private double rating;
    @Column(name = "many_address")
    private String address;
    @Column(name = "many_number")
    private String number;
    @Column(name = "many_site")
    private String site;
    @Column(name = "many_price")
    private String price;
    @Column(name = "many_photo")
    private Blob photo;
    @Column(name = "dish_name")
    private String dishName;
    @Column(name = "kitchen_name")
    private String kitchenName;
    @Column(name = "dish_photo")
    private Blob dishPhoto;
    @Column(name = "kitchen_photo")
    private Blob kitchenPhoto;
我知道如何在两个表之间定义这种关系，但对于超过两个表的情况，我不太确定。
我需要创建 `Many` 表吗？

根据一个 `Restaurant` 可能会有多个 **dishes** 和一个 `Kitchen` 的理解
您可以像下面这样定义关系
    @Entity
    public class Restaurant {
    // 所有其他字段
    @OneToMany
    private Set<Dish> dishes;
    
    @OneToOne
    private Kitchen kitchen;
    
    }
您可以从一侧进行映射，就像上面的示例一样，也可以从两侧进行定义，即从 `Dish` 和 `Kitchen` 两者都定义 - 从 `Dish` 到 `Restaurant` 是 `ManyToOne`，从 `Kitchen` 到 `Restaurant` 是 `OneToOne`
我没有看到使用 `Many` 模型的任何理由。