值得关注的持久化技术： hibernate

//WARNING: this file has been automatically generated by JAC
//DO NOT MODIFY unless you know what you are doing
//package h;
public class Person
{
String name;

/**
* Sets the value of field name.
*
* @param name
*            value of field name
*/
public void setName(String value)
{
this.name = value;
}

/**
* Gets the value of field name.
*
* @return value of field name
*/
public String getName()
{
return name;
}

String address;

/**
* Sets the value of field address.
*
* @param address
*            value of field address
*/
public void setAddress(String value)
{
this.address = value;
}

/**
* Gets the value of field address.
*
* @return value of field address
*/
public String getAddress()
{
return address;
}

String id;

/**
* Sets the value of field id.
*
* @param id
*            value of field id
*/
public void setId(String value)
{
this.id = value;
}

/**
* Gets the value of field id.
*
* @return value of field id
*/
public String getId()
{
return id;
}
}

<?xml version="1.0" encoding="GB2312"?>
<!DOCTYPE hibernate-mapping SYSTEM "http://hibernate.sourceforge.net/hibernate-mapping-2.0.dtd" >
<hibernate-mapping>

<class name="h.Person">
<!--hibernate为我们生成主键id-->
<id name = "id" unsaved-value = "null">
<generator class="uuid.hex"/>
</id>

<!--默认把类的变量映射为相同名字的表列，当然我们可以修改其映射方式-->
<property name="name"/>
<property name="address"/>
</class>
</hibernate-mapping>
[code]

package h;

import net.sf.hibernate.Session;
import net.sf.hibernate.Transaction;
import net.sf.hibernate.SessionFactory;
import net.sf.hibernate.cfg.Configuration;
import net.sf.hibernate.tool.hbm2ddl.SchemaExport;

class TestPerson
{

private static SessionFactory sessions;

public static void main(String[] args) throws Exception{
//配置环境，分析xml映射文件
Configuration conf= new Configuration()
.addClass(Person.class);

//生成并输出sql到文件（当前目录）和数据库
SchemaExport dbExport=new SchemaExport(conf);
dbExport.setOutputFile("build/sql.txt");
dbExport.create(true, true);

sessions = conf.buildSessionFactory();
//以上都是些固定格式的环境配置

//start......
Session s = sessions.openSession();
Transaction t =  s.beginTransaction();

//1.用普通使用方式建立对象，填充数据
Person p1=new Person();
p1.setName("陈鹏");
p1.setAddress("西安东郊黄陵");

//2.持久化
s.save(p1);
//此时p1已经可以在数据库中找到

t.commit();
s.close();
}}

## MySQL
## 前两行人家都给你填好了，只用填数据库连接和username,password
hibernate.dialect net.sf.hibernate.dialect.MySQLDialect
hibernate.connection.driver_class org.gjt.mm.mysql.Driver
hibernate.connection.url jdbc:mysql://localhost/test?useUnicode=true&characterEncoding=GBK
hibernate.connection.username root
hibernate.connection.password