Hibernate之一对多（多对一）

一、双向关联级联保存客户订单

1、搭建环境，项目结构如下

2、代码及配置如下(数据库里订单表不能用order，因为order是数据库关键字)（客户外键cid和订单表外键cid要在配置中写一致）

package com.hjp.onetomany;

import java.util.HashSet;
import java.util.Set;

/**
 * Created by JiaPeng on 2016/1/2.
 */
public class Customer {
    private int id;
    private String name;
    private Set<Order> orderSet=new HashSet<Order>() ;

    public Set<Order> getOrderSet() {
        return orderSet;
    }

    public void setOrderSet(Set<Order> orderSet) {
        this.orderSet = orderSet;
    }

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    @Override
    public String toString() {
        return "Customer{" +
                "id=" + id +
                ", name='" + name + '\'' +
                ", orderSet=" + orderSet +
                '}';
    }
}

Customer