在java工程里导入Hibernate架包:

在添加数据库架包如:

Hibernate开发步骤：

1、Eclipse下创建Hibernate配置文件(需要tools插件)

new---->other---->Hibernate Configuration File(cfg.xml)  点击next----finish  创建下图文件,然后配置dtd文件

然后通过下图的properties文件，编写我们的hibernate.cfg.xml文件

常用的配置如下(至此第一步完成)

1 <?xml version="1.0" encoding="UTF-8"?>

2 "-//Hibernate/Hibernate Configuration DTD 3.0//EN"4 "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">

5

6

7

8 root

9 root

10 com.mysql.jdbc.Driver

11 jdbc:mysql:///hibernate5

12

13

14

15 org.hibernate.dialect.MySQLInnoDBDialect

16

17

18 true

19

20

21 true

22

23

24 update

25

26

27

28

hibernate.cfg.xml

2、创建持久化类

1 packagecom.tzy.hibernate;2

3 importjava.util.Date;4

5 public classNews {6 privateInteger id;7 privateString title;8 privateString author;9 privateDate date;10 publicInteger getId() {11 returnid;12 }13 public voidsetId(Integer id) {14 this.id =id;15 }16 publicString getTitle() {17 returntitle;18 }19 public voidsetTitle(String title) {20 this.title =title;21 }22 publicString getAuthor() {23 returnauthor;24 }25 public voidsetAuthor(String author) {26 this.author =author;27 }28 publicDate getDate() {29 returndate;30 }31 public voidsetDate(Date date) {32 this.date =date;33 }34

35 publicNews(String title, String author, Date date) {36 super();37 this.title =title;38 this.author =author;39 this.date =date;40 }41 publicNews() {42 super();43 }44 @Override45 publicString toString() {46 return "News [id=" + id + ", title=" + title + ", author=" + author + "]";47 }48

49 }

News

3、创建对象-关系-映射文件

new---->other---->Hibernate XML Mapping file(hbm.xml)  点击next-next-next----finish  创建下图文件

1 <?xml version="1.0"?>

2 /p>

3 "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

News.hbm.xml

然后在hibernate.cfg.xml里面建立映射关系

4、通过Hibernate API编写访问数据库的代码

1 packagecom.tzy.hibernate;2

3 importjava.util.Date;4

5 importorg.hibernate.Session;6 importorg.hibernate.SessionFactory;7 importorg.hibernate.Transaction;8 importorg.hibernate.boot.MetadataSources;9 importorg.hibernate.boot.registry.StandardServiceRegistry;10 importorg.hibernate.boot.registry.StandardServiceRegistryBuilder;11 importorg.junit.Test;12

13 public classHibernateTest {14

15 @Test16 public voidtest() {17 //1.创建一个SessionFactory对象

18 SessionFactory sessionFactory = null;19

20 //hibernate4获取sessionFactory办法21 //1).创建Configuration对象：对应hibernate的基本配置信息和关系映射信息22 //Configuration configuration = new Configuration().configure();23 //4.0之前这样创建24 //sessionFactory = configuration.buildSessionFactory();25 //2).创建一个ServiceRegistry对象：hibernate 4.x新添加的对象26 //hibernate的任何配置和服务都需要在该对象中注册后才能有效。27 //ServiceRegistry serviceRegistry = new ServiceRegistryBuilder().applySettings(configuration.getProperties())28 //.buildServiceRegistry();29 //3).30 //sessionFactory = configuration.buildSessionFactory(serviceRegistry);31

32 //4).33 //hibernate5获取sessionFactory办法34 //创建StandardServiceRegistry对象(标准服务注册)

35 StandardServiceRegistry standardServiceRegistry = newStandardServiceRegistryBuilder().configure().build();36

37 sessionFactory = newMetadataSources(standardServiceRegistry).buildMetadata().buildSessionFactory();38 //2.创建一个Session对象

39 Session session =sessionFactory.openSession();40

41 //3.开启事物

42 Transaction transaction =session.beginTransaction();43

44 //4.执行保存操作

45 News news = new News("Java", "Tzy", newDate());46 session.save(news);47

48 //5.提交事物

49 transaction.commit();50

51 //6.关闭Session

52 session.close();53

54 //7.关闭SessionFactory对象

55 sessionFactory.close();56 }57

58 }

HibernateTest

1.创建一个SessionFactory对象2.创建一个Session对象3.开启事物4.执行保存操作5.提交事物6.关闭Session7.关闭SessionFactory对象

操作执行完毕(表自动创建---cfg.xml里的生成数据表策略)