모델2 -연관관계

package com.example.model.entity;

public enum OrderStatus {
    ORDER,CANCEL
}

package com.example.model.entity;

import lombok.Getter;
import lombok.Setter;
import lombok.ToString;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;

@Getter
@Setter
@ToString
@Entity
public class Item {

    @Id
    @GeneratedValue
    @Column(name="ITEM_ID")
    private Long id;


    private String name;       //이름
    private int price;         //가격
    private int stockQuntity;  //재고수량


}

package com.example.model.entity;

import lombok.Getter;
import lombok.Setter;
import lombok.ToString;

import javax.persistence.*;
import java.util.ArrayList;
import java.util.List;

@Getter
@Setter
@ToString(exclude = {"orders"})
@Entity
public class Member {

    @Id
    @GeneratedValue
    @Column(name="MEMBER_ID")
    private Long id;

    private String name;

    private String city;
    private String street;
    private String zipcode;

    @OneToMany(mappedBy = "member")
    private List<Order> orders = new ArrayList<Order>();

}

package com.example.model.entity;

import lombok.Getter;
import lombok.Setter;
import lombok.ToString;

import javax.persistence.*;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;

@Getter
@Setter
@ToString(exclude = {"member","orderItems"})
@Entity
@Table(name="ORDERS")
public class Order {

    @Id
    @GeneratedValue
    @Column(name="ORDER_ID")
    private Long id;

    @ManyToOne
    @JoinColumn(name = "MEMBER_ID")
    private Member member;   //주문회원

    @OneToMany(mappedBy = "order")
    private List<OrderItem> orderItems = new ArrayList<OrderItem>();

    @Temporal(TemporalType.TIMESTAMP)
    private Date orderDate;   //주문시간

    @Enumerated(EnumType.STRING)
    private OrderStatus status; //주문상태

    // 연관관계 메서드
    public void setMember(Member member) {
        //기존 관계 제거
        if( this.member != null) {
            this.member.getOrders().remove(this);
        }
        this.member = member;
        member.getOrders().add(this);
    }

    public void addOrderItem(OrderItem orderItem) {
        orderItems.add(orderItem);
        orderItem.setOrder(this);

    }

}

package com.example.model.entity;

import lombok.Getter;
import lombok.Setter;
import lombok.ToString;

import javax.persistence.*;

@ToString(exclude = {"item","order"})
@Getter
@Setter
@Entity
@Table(name = "ORDER_ITEM")
public class OrderItem {

    @Id
    @GeneratedValue
    @Column(name="ORDER_ITEM_ID")
    private Long id;

    @ManyToOne
    @JoinColumn(name = "ITEM_ID")
    private Item item;  //주문상품

    @ManyToOne
    @JoinColumn(name="ORDER_ID")
    private Order order;  //주문

    private int orderPrice;   //주문가격
    private int count;        //주문수량


}