SpringDemo/src/main/java/com/example/springdemo/entities/Users.java

package com.example.springdemo.entities;

import com.example.springdemo.entities.RBAC.Roles;
import jakarta.persistence.*;
import lombok.AllArgsConstructor;
import lombok.Builder;
import lombok.Data;
import lombok.NoArgsConstructor;

import java.util.ArrayList;
import java.util.List;

//用户类
@Data
@Builder
@NoArgsConstructor
@AllArgsConstructor
@Entity
@Table(name = "Users")
public class Users {
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;//主键，用户ID
    private String name;//用户姓名
    private String sex;//用户性别
    @Column(name = "phoneNumber")
    private String phoneNumber;//用户联系方式
    private String address;//家庭住址

    //一个用户可能会有多个订单，关系是一对多
    @OneToMany(cascade = CascadeType.ALL, fetch = FetchType.LAZY)
    @JoinTable(name = "users_orders",
            joinColumns = {@JoinColumn(name = "usersID", referencedColumnName = "id")},
            inverseJoinColumns = {@JoinColumn(name = "ordersID", referencedColumnName = "id")})
    private List<Orders> orders = new ArrayList<>();//订单

    @ManyToOne(cascade = CascadeType.ALL, fetch = FetchType.LAZY)
    @JoinTable(name = "users_roles",
            joinColumns = {@JoinColumn(name = "usersID", referencedColumnName = "id")},
            inverseJoinColumns = {@JoinColumn(name = "rolesID", referencedColumnName = "id")})
    private Roles roles;//RBAC角色
}