一个简单的Hibernate应用程序

---

 

（１）.创建数据表

/*
MySQL Data Transfer
Source Host: localhost
Source Database: hibernate
Target Host: localhost
Target Database: hibernate
Date: 2008-9-17 12:07:45
*/

SET FOREIGN_KEY_CHECKS=0;
-- ----------------------------
-- Table structure for person
-- ----------------------------
DROP TABLE IF EXISTS `person`;
CREATE TABLE `person` (
  `id` int(11) NOT NULL auto_increment,
  `name` varchar(20) NOT NULL,
  `sex` char(1) default NULL,
  `address` varchar(200) default NULL,
  PRIMARY KEY  (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=gb2312;

-- ----------------------------
-- Records
-- ----------------------------
INSERT INTO `person` VALUES ('1', 'anzey', 'm', '广西南宁');

 

（２）POJO代码

package hibernateTest;

public class Person {

    public Person() {
        // TODO Auto-generated constructor stub
    }
    int id;
    String name;
    String address;
    String sex;
    public String getAddress() {
        return address;
    }
    public void setAddress(String address) {
        this.address = address;
    }
    public int getId() {
        return id;
    }
    public void setId(int id) {
        this.id = id;
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }

}

（３）配置文件

Hibenate.cfg.xml

<?xml version='1.0' encoding='UTF-8'?>
<!DOCTYPE hibernate-configuration PUBLIC
          "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
          "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">

<!-- Generated by MyEclipse Hibernate Tools.                   -->
<hibernate-configuration>

<session-factory>
    <property name="dialect">
        org.hibernate.dialect.MySQLDialect
    </property>
    <property name="connection.url">
        jdbc:mysql://localhost:3306/hibernate
    </property>
    <property name="connection.username">root</property>
    <property name="connection.password">anzey</property>
    <property name="connection.driver_class">
        com.mysql.jdbc.Driver
    </property>
    <mapping resource="hibernateTest/Person.hbm.xml" />

</session-factory>

</hibernate-configuration>

 

Person.hbm.xml配置文件

<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
    "-//Hibernate/Hibernate Mapping DTD//EN"
    "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd" >

<hibernate-mapping package="hibernateTest">
    <class
        name="Person"
        table="person"
    >
        <meta attribute="sync-DAO">false</meta>
        <id
            name="Id"
            type="integer"
            column="id"
        >
            <generator class="increment"/>
        </id>

        <property
            name="Name"
            column="name"
            type="string"
            not-null="true"
            length="20"
        />
        <property
            name="Sex"
            column="sex"
            type="string"
            not-null="false"
            length="1"
        />
        <property
            name="Address"
            column="address"
            type="string"
            not-null="false"
            length="200"
        />

    </class>   
</hibernate-mapping>

 

（４）测试程序

package hibernateTest;
import org.hibernate.*;
import org.hibernate.cfg.*;
import java.io.*;

public class PersonTest {

    public static void main(String[] args) {
        Configuration cfg;
        SessionFactory sf;
        Session session;
        Transaction tx;
        Person person=new Person();
        person.setId(3);
        person.setName("anzey");
        person.setAddress("广西南宁");
        person.setSex("m");
        try
        {
            File file=new File("C:\\Documents and Settings\\Administrator\\workspace\\hibernate_Proj\\hibernateTest\\hibernate.cfg.xml");
            cfg= new Configuration().configure(file);
            sf=cfg.buildSessionFactory();
            session=sf.openSession();
            tx=session.beginTransaction();
            session.save(person);
            tx.commit();
            session.close();
            System.out.print("Data have been saved into database");
        }catch(HibernateException e)
        {
            e.printStackTrace();
        }

    }

}