JBuilderX+SQL Server开发hibernate

2008-01-05 10:35:42  作者
  环境

   开发的IDEJBuilderX
 
   使用的数据库MS SQL Server 2000
 
   使用的数据库驱动JSQL Driver(JDBC 3.0)

  说明


## MS SQL Server

hibernate.dialect net.sf.hibernate.dialect.SQLServerDialect
hibernate.connection.username sa
hibernate.connection.password sa

## JSQL Driver
hibernate.connection.driver_class com.jnetdirect.jsql.JSQLDriver
hibernate.connection.url jdbc:JSQLConnect://yuj/testhi
  7、创建一个类testhibernate.Person,这是个标准的JavaBean,只有3个属性和相应的get\set方法

package testhibernate;

public class Person
{
 private String id;
 private String name;
 private String address;

 public void setId(String value)
 {
  this.id = value;
 }

 public String getId()
 {
  return id;
 }

 public void setName(String value)
 {
  this.name = value;
 }

 public String getName()
 {
  return name;
 }

 public void setAddress(String value)
 {
  this.address = value;
 }

 public String getAddress()
 {
  return address;
 }
}
  8、创建一个对象-关系映射的xml文件Person.hbm.xml,放在和Person.java相同的目录下面

<?xml version="1.0" encoding="GB2312"?>
<!DOCTYPE hibernate-mapping SYSTEM "http://hibernate.sourceforge.net/hibernate-mapping-2.0.dtd" >
<hibernate-mapping>
 <class name="testhibernate.Person">
  <!--hibernate为我们生成主键id-->
  <id name = "id" unsaved-value = "null">
   <generator class="uuid.hex"/>
  </id>

  <!--默认把类的变量映射为相同名字的表列,当然我们可以修改其映射方式-->
  <property name="name"/>
  <property name="address"/>
 </class>
</hibernate-mapping>
  9、创建调用类Person的客户端程序Client1.java

package testhibernate;

import net.sf.hibernate.Session;
import net.sf.hibernate.Transaction;
import net.sf.hibernate.SessionFactory;
import net.sf.hibernate.cfg.Configuration;
import net.sf.hibernate.tool.hbm2ddl.SchemaEXPort;

/**
*本类只是用来创建表的,并不往表内部插入任何数据,并且只能使用一次,否则会删除已有的表的
*/
public class Client1
{
 private static SessionFactory sessionFactory;

 public static void main(String[] args) throws Exception
 {
  Configuration conf = new Configuration().addClass(Person.class);

  //第一次运行时用来在数据库中创建表
  //并且把sql语句输出到txt文件用的
  //以后的运行不能使用该段代码,否则每次都会先删除原表,再新建该表
  SchemaExport dbExport = new SchemaExport(conf);
  dbExport.setOutputFile("sql.txt");
  dbExport.create(true, true);
 }
}

package testhibernate;

import net.sf.hibernate.Session;
import net.sf.hibernate.Transaction;
import net.sf.hibernate.SessionFactory;
import net.sf.hibernate.cfg.Configuration;
import net.sf.hibernate.tool.hbm2ddl.SchemaExport;

public class Client2
{
 private static SessionFactory sessionFactory;

 public static void main(String[] args) throws Exception
 {
  Configuration conf = new Configuration().addClass(Person.class);
  sessionFactory = conf.buildSessionFactory();

  Session s = sessionFactory.openSession();

  Transaction t = s.beginTransaction();

  Person yuj = new Person();
  yuj.setName("john");
  yuj.setAddress("上海");

  Person x = new Person();
  x.setName("zhaoyh");
  x.setAddress("上海");

  //持久化
  s.save(yuj); //此时yuj已经可以在数据库中找到
  s.save(x); //此时x已经可以在数据库中找到

  t.commit();
  s.close();
 }
}
  查看数据库中,增加了2条记录,OK!初步使用成功了,剩下的慢慢研究吧……