Hibernate集合的配置

Hibernate集合的配置

package org.fkjava.bean;

import java.util.Date;
import java.util.List;
import java.util.Map;
import java.util.Set;

/**
 * Hibernate 中 集合和数组类型数据操作
 * 
 * @author hanfeili www.fkjava.org
 */
public class Person {
    private Integer id;

    private String name;
    private int password;
    private Date birthday;

    //定义数组和其他常用集合，并提供get/set方法
    private String[] my_array;
    private List my_list;
    private Map my_map;
    private Set my_set;

    public Person() {
    }

    @Override
    public String toString() {
        return "Person [id=" + id + ", name=" + name + ", password=" + password
                + ", birthday=" + birthday + "]";
    }

    public String[] getMy_array() {
        return my_array;
    }

    public void setMy_array(String[] my_array) {
        this.my_array = my_array;
    }

    public List getMy_list() {
        return my_list;
    }

    public void setMy_list(List my_list) {
        this.my_list = my_list;
    }

    public Map getMy_map() {
        return my_map;
    }

    public void setMy_map(Map my_map) {
        this.my_map = my_map;
    }

    public Set getMy_set() {
        return my_set;
    }

    public void setMy_set(Set my_set) {
        this.my_set = my_set;
    }

    public Integer getId() {
        return id;
    }

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

    public String getName() {
        return name;
    }

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

    public int getPassword() {
        return password;
    }

    public void setPassword(int password) {
        this.password = password;
    }

    public Date getBirthday() {
        return birthday;
    }

    public void setBirthday(Date birthday) {
        this.birthday = birthday;
    }

}

<?xml version="1.0"?>

<!DOCTYPE hibernate-mapping SYSTEM "http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">

<!-- default-access="field" 属性的访问策略 field 表示持久化类属性通过反射方式进行操作 property 表示持久化类属性通过getting/setting方法进行操作 (默认值) -->

-<hibernate-mapping package="bean">


-<class table="t_person" name="Person">


-<id name="id">

<generator class="identity"/>

</id>

<property name="name" column="t_name"/>

<property name="password" column="t_pass"/>

<property name="birthday" type="timestamp"/>

<!-- 效率底下，通常不建议使用 -->



-<array table="t_array" name="my_array">

<key column="id"/>

<!-- 指定t_array表的数据与与t_person表的数据的关系 -->


<list-index column="indexs"/>

<!-- 因为array是顺序的，使用需要保存数据的顺序值 -->


<element column="value" type="java.lang.String"/>

<!-- 指定数组中的元素类型和存储在什么列中 -->


</array>


-<list name="my_list">

<key column="id"/>

<list-index column="indexs"/>

<element column="value" type="java.lang.String"/>

</list>


-<map name="my_map">

<key column="id"/>

<!-- 指定什么列存储map的key数据 -->


<map-key column="key_id" type="java.lang.String"/>

<element column="value" type="java.lang.String"/>

</map>

<!-- 因为set是没有顺序的所以不需要list—index属性 -->



-<set name="my_set">

<key column="id"/>

<element column="value" type="java.lang.String"/>

</set>

</class>

</hibernate-mapping>

 测试：

package org.fkjava.test;


import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;

import org.fkjava.bean.Person;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.cfg.Configuration;
import org.hibernate.service.ServiceRegistry;
import org.hibernate.service.ServiceRegistryBuilder;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
/**
 * 使用Junit4 进行Hibernate 操作
 *
 * @author hanfeili
 *  www.fkjava.org
 */
public class HibernateTest {
    SessionFactory  sessionFactory =null;
    Session session =null;
    Transaction tx = null;
    /**
     * 初始化测试数据 
     * @throws Exception
     */
    @Before
    public void setUp() throws Exception {
        System.out.println("------setUp---初始化测试资源-----");
        Configuration config = new Configuration().configure();
        ServiceRegistry sr = new ServiceRegistryBuilder().applySettings(config.getProperties()).buildServiceRegistry();
        sessionFactory = config.buildSessionFactory(sr);
        session = sessionFactory.openSession();
    }
    
    @Test
    public void testAdd(){
        Person p = new Person();
        p.setName("tom0");
        p.setPassword(123456);
        p.setBirthday(new java.util.Date());
        
         String[] array = {"A","B","C","D"};
         p.setMy_array(array);
         
         ArrayList<String> list = new ArrayList();
         list.add("广东");
         list.add("湖南");
         list.add("北京");
         list.add("上海");
        
         p.setMy_list(list);
         
         
         HashMap<String,String> map = new HashMap<String,String>();
         map.put("fkjava","www.fkjava.org");
         map.put("facejava","www.facejava.org");
         p.setMy_map(map);
         
         HashSet<String> set = new HashSet<String>();
         set.add("帅哥");
         set.add("大帅哥");
         set.add("帅哥2");
         set.add("美女");
         p.setMy_set(set);
         
    
        tx = session.beginTransaction();
        session.persist(p);
        tx.commit();
    
    }
    
    

    @Test
    public void testGet() {
        Person p = (Person)session.get(Person.class, 1);
        System.out.println(p);

    }
    
    
    /**
     * 释放测试数据 
     * @throws Exception
     */
    @After
    public void tearDown() throws Exception {
        System.out.println("------tearDown---释放测试数据---");
        session.close();
        sessionFactory.close();
    }

}