hibernate3学习笔记(十九)｜关系映射：一对一(5)

User.hbm.xml

1.<?xml version="1.0" encoding="UTF-8"?>2.
3.<!DOCTYPE hibernate-mapping PUBLIC4.    "-//Hibernate/Hibernate Mapping DTD 3.0//EN"5.    "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
6.
7.<hibernate-mapping>8.
9.    <class name="com.hb3.pack_18.model.User" table="user">10.11.        <id name="id" column="id" type="java.lang.Integer">12.            <generator class="native"/>13.        </id>14.
15.        <property name="name" column="name" type="java.lang.String"/>16.17.        <one-to-one name="room"18.                    class="com.hb3.pack_18.model.Room"
19.                    cascade="all"/>
20.    </class>21.
22.</hibernate-mapping>

测试代码：

1.package com.hb3.pack_18;2.3.import java.io.IOException;4.import java.sql.SQLException;5.
6.import org.hibernate.Session;7.import org.hibernate.SessionFactory;8.import org.hibernate.Transaction;9.import org.hibernate.cfg.Configuration;10.
11.import com.hb3.pack_18.model.Room;12.import com.hb3.pack_18.model.User;13.
14.public class BusinessService {15.
16.    public static void main(String[] args) throws IOException, SQLException {17.18.        Configuration config = new Configuration().configure();19.        SessionFactory sessionFactory = config.buildSessionFactory();20.        Session session = sessionFactory.openSession();21.
22.23.        User user1 = new User();24.        user1.setName("chanyan");25.        Room room1 = new Room();26.        room1.setAddress("NTU-M8-419");27.        user1.setRoom(room1);28.        room1.setUser(user1);29.30.        User user2 = new User();31.        user2.setName("shenbin");32.        Room room2 = new Room();33.        room2.setAddress("NTU-M8-418");34.        user2.setRoom(room2);35.        room2.setUser(user2);36.37.        Transaction tx = session.beginTransaction();38.        session.save(user1);39.        session.save(user2);40.        tx.commit();41.
42.43.        session.close();44.        sessionFactory.close();45.    }46.}

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