<?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"><hibernate-configuration>    <session-factory>                <!-- 配置连接数据的基本信息 -->        <property name="connection.username">root</property>        <property name="connection.password">lxn123</property>        <property name="connection.driver_class">com.mysql.jdbc.Driver</property>        <property name="connection.url">jdbc:mysql:///hibernate</property>                <!-- 配置hibernate的基本信息 -->                <!-- hibernate使用的数据库方言 ,这个是mysql支持事物的方法，在包：        hibernate-release-4.2.4.Final\hibernate-release-4.2.4.Final\project\etc\hibernate.properties.template,文件中找-->        <property name="dialect">org.hibernate.dialect.MySQLInnoDBDialect</property>                <!-- 执行操作是否在控制台打印，在eclipse中显示实现操作的sql语句 -->        <property name="show_sql">true</property>                <!-- 是否对SQL格式化 ，显示一行还是多行，便于阅读-->        <property name="format_sql">true</property>                <!-- 指定自动生成数据表的策略，一共可以去四个值 -->        <property name="hbm2ddl.auto">update</property>                <!-- 指定关系的 .hbm.xml文件 ,包名和在该包下的hbm.xml文件名，是一个目录结构-->        <mapping resource="com/atguigu/hibernate/hello/News.hbm.xml"/>            </session-factory></hibernate-configuration>

package com.atguigu.hibernate.hello;import java.sql.Date;public class News {    private Integer id;    private String title;    private String author;    private Date date;    public News(String title, String author, Date date) {        super();        this.title = title;        this.author = author;        this.date = date;    }    public News() {        super();        // TODO Auto-generated constructor stub    }    public Integer getId() {        return id;    }    public void setId(Integer id) {        this.id = id;    }    public String getTitle() {        return title;    }    public void setTitle(String title) {        this.title = title;    }    public String getAuthor() {        return author;    }    public void setAuthor(String author) {        this.author = author;    }    public Date getDate() {        return date;    }    public void setDate(Date date) {        this.date = date;    }    public String toString() {        return "News [id=" + id + ", title=" + title + ", author=" + author                + ", date=" + date + "]";    }        }

<?xml version="1.0"?><!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN""http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd"><!-- Generated 2016-9-15 15:51:47 by Hibernate Tools 3.4.0.CR1 --><!-- 对象关系映射文件 --><hibernate-mapping>    <class name="com.atguigu.hibernate.hello.News" table="NEWS">        <!-- 属性名，类型 -->        <id name="id" type="java.lang.Integer">                        <!-- 列名 -->            <column name="ID" />                         <!-- 指定主键的生成方式, native: 使用数据库本地方式 -->            <generator class="native" />        </id>                <property name="title" type="java.lang.String">            <column name="TITLE"></column>        </property>                <property name="author" type="java.lang.String">            <column name="AUTHOR" />        </property>                <property name="date" type="java.sql.Date">            <column name="DATE" />        </property>            </class></hibernate-mapping>

package com.atguigu.hibernate.hello;import java.sql.Date;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 junit.framework.TestCase;public class HeibernateTT extends TestCase {        public static void main(String[] args) {        //1. 创建一个 SessionFactory 对象,一般在一个项目中建立以，比较消耗资源        SessionFactory sessionFactory=null;                //1). 创建 Configuration 对象: 对应 hibernate 的基本配置信息和 对象关系映射信息        Configuration configuration=new Configuration().configure();                //2). 创建一个 ServiceRegistry 对象: hibernate 4.x 新添加的对象        //hibernate 的任何配置和服务都需要在该对象中注册后才能有效.        ServiceRegistry serviceRegistry=                new ServiceRegistryBuilder()                    .applySettings(configuration                    .getProperties()).buildServiceRegistry();                sessionFactory=configuration.buildSessionFactory(serviceRegistry);                //2. 创建一个 Session 对象，是用户和数据库之间进行交互操作的单线程对象，        Session session=sessionFactory.openSession();                //3. 开启事务，Transaction事物        Transaction transaction=session.beginTransaction();                //4. 执行保存操作        News news=new News("java", "panpan", new Date(new java.util.Date().getTime()));        //插入数据        session.save(news);                //5. 提交事务         transaction.commit();                //6. 关闭 Session        session.close();                //7. 关闭 SessionFactory 对象        sessionFactory.close();            }}