如何使用Spring Boot JpaRepository及其MySQL腳本保存多個表

Question

//餐廳實體類

public class Restaurant {

    @GeneratedValue
    @Id
    private Long id;

    @NotBlank
    @Size(min = 3, max = 50)
    private String name;

    @OneToMany(mappedBy = "restaurant", cascade = CascadeType.ALL, fetch = FetchType.EAGER, orphanRemoval = true)
    private List<Menu> menus;
}

//菜單實體類

public class Menu {

    @Id
    private Long id;

    @NotBlank
    @Size(min = 3, max = 50)
    private String type;

    @NotBlank
    private String info;

    @ManyToOne
    @JoinColumn(name = "restaurant_id")
    private Restaurant restaurant;
}

我有兩個實體：一個是餐廳，另一個是帶有終點的菜單

/餐廳

GET - get all restaurants
POST - upload restaurant
PUT - Update restaurant
DELETE - delete all restaurant

/餐廳/ {id}

GET - get a restaurant by id
DELETE - delete a restaurant by id

/ restaurants / {id} / menus /

GET - get all menus in the restaurant specified by id
POST - add new menus in the restaurant specified by id
DELETE - delete all menus in the restaurant specified by id

現在，您能否檢查一下實體類是否正確，並向我提供上述實體的MySQL腳本

Answer 1

您應該從文檔開始： https : //docs.spring.io/spring-data/jpa/docs/1.5.0.RELEASE/reference/html/jpa.repositories.html

之后，您可以在此處或此處查看其他示例