Hibernate 一对一关联映射对象 级联增删改查示例

package com.sunline.entity;

/**
* Person entity. @author MyEclipse Persistence Tools
*/

public class Person  implements java.io.Serializable {

// Fields

private Integer PId;
private String name;
private Card Cards;

// Constructors

/** default constructor */
public Person() {
}

/** minimal constructor */
public Person(String name) {
this.name = name;
}

/** full constructor */
public Person(String name, Card Cards) {
this.name = name;
this.Cards = Cards;
}

// Property accessors

public Integer getPId() {
return this.PId;
}

public void setPId(Integer PId) {
this.PId = PId;
}

public String getName() {
return this.name;
}

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

public Card getCards() {
return this.Cards;
}

public void setCards(Card Cards) {
this.Cards = Cards;
}

}

<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<!--
Mapping file autogenerated by MyEclipse Persistence Tools
-->
<hibernate-mapping>
<class name="com.sunline.entity.Person" table="person" catalog="association">
<id name="PId" type="java.lang.Integer">
<column name="p_id" />
<generator class="increment"></generator>
</id>
<property name="name" type="java.lang.String">
<column name="name" length="50" not-null="true" />
</property>
<!-- 一对一映射： 没有外键方  -->
<one-to-one name="Cards" class="com.sunline.entity.Card" cascade="all" lazy="false" constrained="true"></one-to-one>
</class>
</hibernate-mapping>

package com.sunline.entity;

/**
* Card entity. @author MyEclipse Persistence Tools
*/

public class Card  implements java.io.Serializable {

// Fields

private Integer CId;
private String place;
private Person Persons;
private Integer PId;

// Constructors

/** default constructor */
public Card() {
}

/** minimal constructor */
public Card(String place, Integer PId) {
this.place = place;
this.PId = PId;
}

/** full constructor */
public Card(String place, Person Persons, Integer PId) {
this.place = place;
this.Persons = Persons;
this.PId = PId;
}

// Property accessors

public Integer getCId() {
return this.CId;
}

public void setCId(Integer CId) {
this.CId = CId;
}

public String getPlace() {
return this.place;
}

public void setPlace(String place) {
this.place = place;
}

public Person getPersons() {
return this.Persons;
}

public void setPersons(Person Persons) {
this.Persons = Persons;
}

public Integer getPId() {
return this.PId;
}

public void setPId(Integer PId) {
this.PId = PId;
}

}

<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<!--
Mapping file autogenerated by MyEclipse Persistence Tools
-->
<hibernate-mapping>
<class name="com.sunline.entity.Card" table="card" catalog="association">
<id name="CId" type="java.lang.Integer">
<column name="c_id" />
<generator class="increment"></generator>
</id>
<property name="place" type="java.lang.String">
<column name="place" length="80" not-null="true" />
</property>
<!--  一对一映射，有外键方  unique="true" 给外键字段添加唯一约束    -->
<!--  注：unique＝"ture" column="p_id"表示为engine表中的外健p_id加上唯一约束，使之一对多关系强制转化为一对一关系。 -->
<many-to-one name="Persons" class="com.sunline.entity.Person" unique="true" column="p_id"></many-to-one>
<property name="PId" type="java.lang.Integer" insert="false" update="false">
<column name="p_id" not-null="true"/>
</property>
</class>
</hibernate-mapping>

package com.sunline.dao;

import javax.annotation.Resource;

import org.hibernate.SessionFactory;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;
import org.springframework.stereotype.Repository;

import com.sunline.entity.Person;
@Repository(value="personDao")
public class PersonDao extends HibernateDaoSupport {
/*
* 使用注解必须添加以下方式
*/
@Resource
public void setSessionFacotry(SessionFactory sessionFacotry) {
super.setSessionFactory(sessionFacotry);
}

/*
* 添加人员
*/
public void AddPerson(Person person){
System.out.println("成功添加人员信息");
this.getHibernateTemplate().save(person);
}

/*
* 查询id为XX的所有人员和证件信息
*/
public Person findById(int id) {
Person person=(Person)this.getHibernateTemplate().get(Person.class,id);
return person;
}

/*
* 修改个人信息
*/
public void UpdatePerson(String name, int p_id){
System.out.println("成功修改数据!");
this.getHibernateTemplate().bulkUpdate("update Person set name = ? where PId = ?",new Object[]{name,p_id}) ;
}

/*
* 根据id级联删除个人信息和证件信息
*/
public void DeletePerson(int id){
System.out.println("成功删除数据!");
this.getHibernateTemplate().delete(findById(id));
}
}

package com.sunline.biz;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.stereotype.Service;

import com.sunline.dao.PersonDao;
import com.sunline.entity.Person;

@Service(value="personBiz")
public class PersonBiz {

/*
* 添加人员信息
*/
@Autowired
@Qualifier("personDao")            //使用@Qualifier注解来说明使用哪一个实现类
PersonDao personDao;
public void AddPerson(Person person){
personDao.AddPerson(person);
}

/*
* 查询id为XX的所有人员和证件信息
*/
public Person findById(int id) {
return personDao.findById(id);
}

/*
* 修改个人信息
*/
public void UpdatePerson(String name, int p_id){
personDao.UpdatePerson(name, p_id);
}

/*
* 根据id级联删除个人信息和证件信息
*/
public void DeletePerson(int id){
personDao.DeletePerson(id);
}
}

package com.sunline.test;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.transaction.annotation.Propagation;
import org.springframework.transaction.annotation.Transactional;

import com.sunline.biz.PersonBiz;
import com.sunline.entity.Card;
import com.sunline.entity.Person;

@Transactional(propagation=Propagation.REQUIRED)
public class Test {

/**
* @param args
*/
@SuppressWarnings("unchecked")
@Transactional(propagation=Propagation.REQUIRED)        //用事务管理做双重保障
public static void main(String[] args) {
// TODO Auto-generated method stub
ApplicationContext ctx = new ClassPathXmlApplicationContext("applicationContext.xml");
PersonBiz personBiz = (PersonBiz) ctx.getBean("personBiz");

Person person = new Person();
person.setName("海哥");

Card card = new Card();
card.setPlace("山东省烟台市");
card.setPersons(person);     //双向一对一

person.setCards(card);       //双向一对一
personBiz.AddPerson(person);
}

}

package com.sunline.test;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.transaction.annotation.Propagation;
import org.springframework.transaction.annotation.Transactional;

import com.sunline.biz.PersonBiz;

@Transactional(propagation=Propagation.REQUIRED)
public class DelteteTest {

/**
* @param args
*/
@SuppressWarnings("unchecked")
@Transactional(propagation=Propagation.REQUIRED)        //用事务管理做双重保障
public static void main(String[] args) {
// TODO Auto-generated method stub
ApplicationContext ctx = new ClassPathXmlApplicationContext("applicationContext.xml");
PersonBiz personBiz = (PersonBiz) ctx.getBean("personBiz");

personBiz.DeletePerson(1);     //级联删除该用户ID相关的所有个人信息和证件信息
}

}

package com.sunline.test;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.transaction.annotation.Propagation;
import org.springframework.transaction.annotation.Transactional;

import com.sunline.biz.PersonBiz;

@Transactional(propagation=Propagation.REQUIRED)
public class UpdateTest {

/**
* @param args
*/
@SuppressWarnings("unchecked")
@Transactional(propagation=Propagation.REQUIRED)        //用事务管理做双重保障
public static void main(String[] args) {
// TODO Auto-generated method stub
ApplicationContext ctx = new ClassPathXmlApplicationContext("applicationContext.xml");
PersonBiz personBiz = (PersonBiz) ctx.getBean("personBiz");

personBiz.UpdatePerson("杨旭", 1);
}

}

package com.sunline.test;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.transaction.annotation.Propagation;
import org.springframework.transaction.annotation.Transactional;

import com.sunline.biz.PersonBiz;
import com.sunline.entity.Card;
import com.sunline.entity.Person;

@Transactional(propagation=Propagation.REQUIRED)
public class QueryTest {

/**
* @param args
*/
@SuppressWarnings("unchecked")
@Transactional(propagation=Propagation.REQUIRED)        //用事务管理做双重保障
public static void main(String[] args) {
// TODO Auto-generated method stub
ApplicationContext ctx = new ClassPathXmlApplicationContext("applicationContext.xml");
PersonBiz personBiz = (PersonBiz) ctx.getBean("personBiz");

Person person = personBiz.findById(1);
Card card = person.getCards();
System.out.println("你的个人信息为: "+person.getPId()+" "+person.getName());
System.out.println("你的证件信息为: "+card.getCId()+" "+card.getPlace());
}

}