<?xml version="1.0" encoding="GBK"?>
<project name="hibernate" basedir="." default="">
<property name="src" value="src"/>
<property name="dest" value="classes"/>
<path >
<fileset dir="../../lib">
<include name="**/*.jar"/>
</fileset>
<pathelement path="${dest}"/>
</path>
<target name="compile" description="Compile all source code">
<delete dir="${dest}"/>
<mkdir dir="${dest}"/>
<copy todir="${dest}">
<fileset dir="${src}">
<exclude name="**/*.java"/>
</fileset>
</copy>
<javac destdir="${dest}" debug="true" includeantruntime="yes"
deprecation="false" optimize="false" failonerror="true">
<src path="${src}"/>
<classpath ref/>
</javac>
</target>
<target name="run" description="Run the main class" depends="compile">
<java classname="lee.PersonManager" fork="yes" failonerror="true">
<classpath ref/>
</java>
</target>
</project>
<?xml version="1.0" encoding="GBK"?>
<!-- 指定Hibernate配置文件的DTD信息 -->
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
<!-- hibernate-configuration是配置文件的根元素 -->
<hibernate-configuration>
<session-factory>
<!-- 指定连接数据库所用的驱动 -->
<property name="connection.driver_class">com.mysql.jdbc.Driver</property>
<!-- 指定连接数据库的url，其中hibernate是本应用连接的数据库名 -->
<property name="connection.url">jdbc:mysql://localhost/hibernate</property>
<!-- 指定连接数据库的用户名 -->
<property name="connection.username">root</property>
<!-- 指定连接数据库的密码 -->
<property name="connection.password">32147</property>
<!-- 指定连接池里最大连接数 -->
<property name="hibernate.c3p0.max_size">20</property>
<!-- 指定连接池里最小连接数 -->
<property name="hibernate.c3p0.min_size">1</property>
<!-- 指定连接池里连接的超时时长 -->
<property name="hibernate.c3p0.timeout">5000</property>
<!-- 指定连接池里最大缓存多少个Statement对象 -->
<property name="hibernate.c3p0.max_statements">100</property>
<property name="hibernate.c3p0.idle_test_period">3000</property>
<property name="hibernate.c3p0.acquire_increment">2</property>
<property name="hibernate.c3p0.validate">true</property>
<!-- 指定数据库方言 -->
<property name="dialect">org.hibernate.dialect.MySQL5InnoDBDialect</property>
<!-- 根据需要自动创建数据库 -->
<property name="hbm2ddl.auto">update</property>
<!-- 显示Hibernate持久化操作所生成的SQL -->
<property name="show_sql">true</property>
<!-- 将SQL脚本进行格式化后再输出 -->
<property name="hibernate.format_sql">true</property>
<!-- 罗列所有持久化类的映射文件 -->
<mapping resource="org/crazyit/app/domain/Person.hbm.xml"/>
</session-factory>
</hibernate-configuration>
package org.crazyit.app.domain;
/**
* Description:
* <br/>网站: <a href="http://www.crazyit.org">疯狂Java联盟</a>
* <br/>Copyright (C), 2001-2016, Yeeku.H.Lee
* <br/>This program is protected by copyright laws.
* <br/>Program Name:
* <br/>Date:
* @author Yeeku.H.Lee kongyeeku@163.com
* @version 1.0
*/
public class Name
implements java.io.Serializable
{
private String first;
private String last;
// 无参数的构造器
public Name()
{
}
// 初始化全部成员变量的构造器
public Name(String first , String last)
{
this.first = first;
this.last = last;
}
// first的setter和getter方法
public void setFirst(String first)
{
this.first = first;
}
public String getFirst()
{
return this.first;
}
// last的setter和getter方法
public void setLast(String last)
{
this.last = last;
}
public String getLast()
{
return this.last;
}
// 重写equals()方法，根据first、last进行判断
public boolean equals(Object obj)
{
if (this == obj)
{
return true;
}
if (obj != null && obj.getClass() == Name.class)
{
Name target = (Name)obj;
return target.getFirst().equals(first)
&& target.getLast().equals(last);
}
return false;
}
// 重写hashCode()方法，根据first、last计算hashCode值
public int hashCode()
{
return first.hashCode() + last.hashCode() * 31;
}
}
<?xml version="1.0" encoding="GBK"?>
<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">
<!-- hibernate-mapping是映射文件的根元素 -->
<hibernate-mapping package="org.crazyit.app.domain">
<class name="Person" table="person_inf">
<!-- 映射组件类型的标识属性 -->
<composite-id name="name" class="Name">
<!-- 映射复合主键里的各个属性 -->
<key-property name="first" type="string"/>
<key-property name="last" type="string"/>
</composite-id>
<!-- 映射普通属性 -->
<property name="email" type="string"/>
<!-- 映射组件属性cat，组件属性的类型为Cat -->
<component name="pet" class="Cat" >
<!-- 指定owner属性代表容器实体 -->
<parent name="owner"/>
<!-- 映射组件属性的first属性 -->
<property name="name" column="cat_name"/>
<!-- 映射组件属性的last属性 -->
<property name="color" column="cat_color"/>
</component>
</class>
</hibernate-mapping>
package org.crazyit.app.domain;
/**
* Description:
* <br/>网站: <a href="http://www.crazyit.org">疯狂Java联盟</a>
* <br/>Copyright (C), 2001-2016, Yeeku.H.Lee
* <br/>This program is protected by copyright laws.
* <br/>Program Name:
* <br/>Date:
* @author Yeeku.H.Lee kongyeeku@163.com
* @version 1.0
*/
public class Person
{
// 使用Name组件作为复合主键
private Name name;
// 普通属性
private String email;
// 组件属性，代表此人拥有的宠物
private Cat pet;
// 无参数的构造器
public Person()
{
}
// 初始化全部成员变量的构造器
public Person(Name name , String email , Cat pet)
{
this.name = name;
this.email = email;
this.pet = pet;
}
// name的setter和getter方法
public void setName(Name name)
{
this.name = name;
}
public Name getName()
{
return this.name;
}
// email的setter和getter方法
public void setEmail(String email)
{
this.email = email;
}
public String getEmail()
{
return this.email;
}
// pet的setter和getter方法
public void setPet(Cat pet)
{
this.pet = pet;
}
public Cat getPet()
{
return this.pet;
}
}
package org.crazyit.app.domain;
/**
* Description:
* <br/>网站: <a href="http://www.crazyit.org">疯狂Java联盟</a>
* <br/>Copyright (C), 2001-2016, Yeeku.H.Lee
* <br/>This program is protected by copyright laws.
* <br/>Program Name:
* <br/>Date:
* @author Yeeku.H.Lee kongyeeku@163.com
* @version 1.0
*/
public class Cat
{
private String name;
private String color;
private Person owner;
// 无参数的构造器
public Cat()
{
}
// 初始化全部成员变量的构造器
public Cat(String name , String color)
{
this.name = name;
this.color = color;
}
// name的setter和getter方法
public void setName(String name)
{
this.name = name;
}
public String getName()
{
return this.name;
}
// color的setter和getter方法
public void setColor(String color)
{
this.color = color;
}
public String getColor()
{
return this.color;
}
// owner的setter和getter方法
public void setOwner(Person owner)
{
this.owner = owner;
}
public Person getOwner()
{
return this.owner;
}
}
package lee;
import org.hibernate.*;
import org.hibernate.cfg.*;
import org.hibernate.service.*;
import org.hibernate.boot.registry.*;
/**
* Description:
* <br/>网站: <a href="http://www.crazyit.org">疯狂Java联盟</a>
* <br/>Copyright (C), 2001-2016, Yeeku.H.Lee
* <br/>This program is protected by copyright laws.
* <br/>Program Name:
* <br/>Date:
* @author Yeeku.H.Lee kongyeeku@163.com
* @version 1.0
*/
public class HibernateUtil
{
public static final SessionFactory sessionFactory;
static
{
try
{
// 使用默认的hibernate.cfg.xml配置文件创建Configuration实例
Configuration cfg = new Configuration()
.configure();
// 以Configuration实例来创建SessionFactory实例
ServiceRegistry serviceRegistry = new StandardServiceRegistryBuilder()
.applySettings(cfg.getProperties()).build();
sessionFactory = cfg.buildSessionFactory(serviceRegistry);
}
catch (Throwable ex)
{
System.err.println("Initial SessionFactory creation failed." + ex);
throw new ExceptionInInitializerError(ex);
}
}
// ThreadLocal可以隔离多个线程的数据共享，因此不再需要对线程同步
public static final ThreadLocal<Session> session
= new ThreadLocal<Session>();
public static Session currentSession()
throws HibernateException
{
Session s = session.get();
// 如果该线程还没有Session,则创建一个新的Session
if (s == null)
{
s = sessionFactory.openSession();
// 将获得的Session变量存储在ThreadLocal变量session里
session.set(s);
}
return s;
}
public static void closeSession()
throws HibernateException
{
Session s = session.get();
if (s != null)
s.close();
session.set(null);
}
}
package lee;
import org.hibernate.Transaction;
import org.hibernate.Session;
import java.util.*;
import org.crazyit.app.domain.*;
/**
* Description:
* <br/>网站: <a href="http://www.crazyit.org">疯狂Java联盟</a>
* <br/>Copyright (C), 2001-2016, Yeeku.H.Lee
* <br/>This program is protected by copyright laws.
* <br/>Program Name:
* <br/>Date:
* @author Yeeku.H.Lee kongyeeku@163.com
* @version 1.0
*/
public class PersonManager
{
public static void main(String[] args)
{
PersonManager mgr = new PersonManager();
mgr.createAndStorePerson();
HibernateUtil.sessionFactory.close();
}
private void createAndStorePerson()
{
Session session = HibernateUtil.currentSession();
Transaction tx = session.beginTransaction();
// 创建Person对象
Person person = new Person();
person.setName(new Name("crazyit.org", "疯狂Java联盟"));
person.setEmail("test@crazyit.org");
person.setPet(new Cat("Garfield", "黄色"));
session.save(person);
tx.commit();
HibernateUtil.closeSession();
}
}
