hibernate3 eclipse3.2配置

例子是<精通hibernate3.0>的例子,权当给初学者一个教程吧.

需要自己下载hibernate3.3和mysql的jdbc驱动包.eclipse3.2

1：新建一个Java项目

 

2：在项目下面新建2个包:BasicCar和bean如图所示:

3：导入需要导入的包:

4：在MysqL数据库中建立一个数据库car,然后新建一个表basiccar;

SQL语句为:

create database car;
create table basiccar(id bigint not null primary key,name varchar(20),factory varchar(20),date date);
select * from basiccar;

5:在BasicCar包底下建立一个配置文件hibernate.cfg.xml

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

 2:  <!DOCTYPE hibernate-configuration PUBLIC

 3:  "-//Hibernate/Hibernate Configuration DTD 3.0//EN"

 4:  "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">

 5:  

 6:  <hibernate-configuration>

 7:  

 8:  <session-factory>

 9:      <property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>

10:      <property name="hibernate.connection.url">jdbc:mysql://localhost:3306/car</property>

11:      <property name="hibernate.connection.username">root</property>

12:      <property name="hibernate.connection.password">0</property>

13:      <property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>

14:  <mapping resource ="basicCar/bean/BasicCar.hbm.xml"/>

15:  </session-factory>

16:  </hibernate-configuration>

 

6：在bean包底下新建一个java文件BasicCar.java,内容为:

 1:  package BasicCar.bean;

 2:  import java.util.*;

 3:  public class BasicCar implements java.io.Serializable  {

 4:   

 5:          private String name;

 6:   

 7:          private long id;

 8:   

 9:          private String factory;

10:   

11:          private Date date;

12:   

13:   

14:   

15:   

16:  public BasicCar()

17:  {

18:  }

19:      public BasicCar(String name,  String factory, Date date) {

20:   

21:          this.name = name;

22:          this.factory = factory;

23:          this.date = date;

24:      }

25:      public String getName() {

26:          return name;

27:      }

28:      public void setName(String name) {

29:          this.name = name;

30:      }

31:      public long getId() {

32:          return id;

33:      }

34:      public void setId(long id) {

35:          this.id = id;

36:      }

37:      public String getFactory() {

38:          return factory;

39:      }

40:      public void setFactory(String factory) {

41:          this.factory = factory;

42:      }

43:      public Date getDate() {

44:          return date;

45:      }

46:      public void setDate(Date date) {

47:          this.date = date;

48:      }

49:   

50:   

51:  }

52:   

7：在bean包底下建立映射文件,BasicCar.hbm.xml数据表映射文件.

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

 2:  <!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"

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

 4:  

 5:  <hibernate-mapping>

 6:      <class name="BasicCar.bean.BasicCar" table="basiccar" >

 7:          <id name="id" type="long">

 8:              <column name="id" />

 9:              <generator class="increment" ></generator>

10:          </id>

11:          <property name="name" type="java.lang.String">

12:              <column name="name" />

13:          </property>

14:           <property name="factory" type="string">

15:              <column name="factory" />

16:          </property>

17:           <property name="date" type="date">

18:              <column name="date" />

19:          </property>

20:      </class>

21:  </hibernate-mapping>

22:  

 

8：在BasicCar包底下,建立一个java文件Test.java来测试hibernate的情况:里面的内容供调试用.

  1:  package BasicCar;

  2:   

  3:  import java.sql.Date;

  4:   

  5:   

  6:  import org.hibernate.Query;

  7:  import org.hibernate.Session;

  8:  import org.hibernate.SessionFactory;

  9:  import org.hibernate.Transaction;

 10:  import org.hibernate.transaction.*;

 11:  import org.hibernate.cfg.Configuration;

 12:   

 13:  import BasicCar.bean.*;

 14:  public class Test {

 15:      Configuration cfg;

 16:   

 17:      SessionFactory sf;

 18:   

 19:      Session session;

 20:   

 21:      public static void main(String []args)

 22:      {

 23:          Test test = new Test();

 24:          test.doConfiguration();

 25:          test.openSession();    

 26:          test.saveEntity();

 27:          test.updateEntity();

 28:      //    test.deleteEntity();

 29:  

 30:  test.closeSession();

 31:          System.out.print("end");

 32:   

 33:      }

 34:   

 35:      void doConfiguration() {

 36:          cfg = new Configuration();

 37:          cfg.configure("/BasicCar/hibernate.cfg.xml");

 38:          sf = cfg.buildSessionFactory();

 39:   

 40:      }

 41:   

 42:      void openSession()

 43:      {

 44:          session = sf.openSession();

 45:   

 46:      }

 47:   

 48:      void closeSession()

 49:      {

 50:          session.close();

 51:   

 52:      }

 53:      void saveEntity()

 54:      {

 55:          Transaction tx1 =session.beginTransaction();

 56:          BasicCar bc1 = new BasicCar();

 57:          bc1.setFactory("BEIJING");

 58:          bc1.setName("sunliming");

 59:          bc1.setDate(new Date(1));

 60:          session.save(bc1);

 61:          tx1.commit();

 62:      }

 63:   

 64:      /*void deleteEntity()

 65:      {

 66:          Transaction tx3 = session.beginTransaction();

 67:  

 68:  

 69:          try{

 70:              BasicCar bc4 =(BasicCar)session.load(BasicCar.class, new Long(1));

 71:              session.delete(bc4);

 72:  

 73:  

 74:          }catch(Exception e){

 75:              System.out.print("id= 1 car are not existed , cannot be deleted;");

 76:  

 77:          }

 78:          tx3.commit();

 79:      }*/

 80:  void updateEntity()

 81:      {

 82:          Transaction tx2 =session.beginTransaction();

 83:          BasicCar bc2 = (BasicCar)session.load(BasicCar.class, new Long(1));

 84:          bc2.setFactory("LuoYang");

 85:          bc2.setName("liulu");

 86:          session.update(bc2);

 87:          tx2.commit();

 88:   

 89:   

 90:   

 91:      }

 92:   

 93:      void queryEntity()

 94:      {

 95:          try{

 96:              Query query = session.createQuery("from BasicCar");

 97:   

 98:              BasicCar bc3 =(BasicCar)query.list().get(0);

 99:              System.out.println("name for the first selected car is:" + bc3.getName());

100:          }catch(Exception e){

101:              System.out.println("no car in database");

102:   

103:          }

104:   

105:      }

106:  }

107:   

 

完成了 ,这样一个简单的hibernate就完成了,你可以在mysql数据库里面检查一下运行 情况,结果如下: