第一个hibernate例子

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package com.hibernate.zhang;

import java.sql.Date;

public class News {
	private Integer id;
	private String title;
	private String author;
	
	private Date date;

	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 News(String title, String author, Date date) {
		super();
		this.title = title;
		this.author = author;
		this.date = date;
	}
	public News() {
		// TODO Auto-generated constructor stub
	}

	@Override
	public String toString() {
		return "News [id=" + id + ", title=" + title + ", author=" + author + ", date=" + date + "]";
	}
	
}

package com.hibernate.zhang;

import static org.junit.Assert.*;

import java.sql.Date;

import javax.imageio.spi.ServiceRegistry;
import javax.sql.rowset.spi.TransactionalWriter;

import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.boot.registry.StandardServiceRegistryBuilder;
import org.hibernate.cfg.Configuration;
import org.junit.Test;

public class HibernateTest {

	@Test
	public void test() {
		//1.创建一个SessionFactory
		SessionFactory sessionFactory=null;
		//1)创建Configuration对象，对应hibernate的基本信息和对象关系映射信息
		Configuration configuration=new Configuration().configure();
		
		//4.0之前这样创建
//		sessionFactory=new configuration.buildSessionFactory();
		
		//2)创建一个ServiceRegistry对象；hibernate4.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 ServiceRegistry().applySettings(configuration.getProperties()).build();
		
		
		//3)
		sessionFactory=configuration.buildSessionFactory(serviceRegistry);
		
		//2.创建一个Session对象
		sessionFactory session=sessionFactory.openSession();
		
		//3.开启事务
		Transaction transaction=new Transaction();
		
		//4.执行保存操作
		News news=new News("java","ATGUIGU",new Date(new java.util.Date().getTime()));
		session.save(news);
		
		//5.提交事务
		transaction.commit();
		
		//6.关闭Session
		session.close();
		
		//7.关闭SessionFactory对象
		sessionFactory.close();
		
	}

}

News.hbm.xml：

<?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 2017-1-8 15:40:30 by Hibernate Tools 3.5.0.Final -->
<hibernate-mapping>
    <class name="com.hibernate.zhang.News" table="NEWS">
    
        <id name="id" type="java.lang.Integer">
            <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" />    
        </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>

hibernate.cfg.xml：

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-configuration PUBLIC
		"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
		"http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
    <session-factory>
    <!-- 配置连接数据库的基本信息 -->
    <property name="connection.username">root</property>
    <property name="connection.password">123</property>
    <property name="connection.driver_class">com.mysql.jdbc.Driver</property>
    <property name="connection.url">jdbc:mysql:///hibernate5</property>
    
    <!-- 配置hibernate的基本信息 -->
      <!-- hibernate所使用的数据库方言 -->
      <property name="dialect">org.hibernate.dialect.MysSQLInnoDBialect</property>
      
      <!-- 执行时是否在控制台打印 -->
      <property name="show_sql">true</property>
      
      <!-- 是否对SQL进行格式化 -->
      <property name="format_sql">true</property>
      
      <!-- 指定生成数据表的策略 -->
      <property name="hbm2ddl.auto">update</property>
      
      <!-- 指定关联的.hbm.xml文件(目录结构) -->
      <mapping resource="com/hibernate/zhang/News.hbm.xml"/>
      
    </session-factory>
</hibernate-configuration>

所需要导入的相关包：