借助netbeans5.5的EntityClass生成功能开发hibernate3

步骤如下。

需要安装netbeans5.5或以上版本。

1.使用 netbeans5.5生成EntityClass
2.给EntityClass的id字段注明生成方式，如：@GeneratedValue
3.使用AnnotationConfiguration
注）推荐proxool-0.9.0RC3

import  org.hibernate.Session;
import  org.hibernate.SessionFactory;
import  org.hibernate.Transaction;
import  org.hibernate.cfg.AnnotationConfiguration;
import  org.hibernate.cfg.Environment;

import  com.hb.pack_01.model.P01_Customer;


public   class  BusinessService  ... {

    public static SessionFactory sessionFactory;

    static ...{
        try ...{
            AnnotationConfiguration cfg = new AnnotationConfiguration();
            cfg.configure("hibernate.cfg.xml");
            cfg.setProperty(Environment.HBM2DDL_AUTO, "create-drop");
            cfg.addPackage("com.hb.pack_01.model");
            cfg.addAnnotatedClass(P01_Customer.class );
            sessionFactory = cfg.buildSessionFactory();
        } catch (Exception e) ...{
            e.printStackTrace();
        }
    }
    
    public void saveCustomer(P01_Customer customer) throws Exception ...{
        Session session = sessionFactory.openSession();
        Transaction tx = null;
        try ...{
            tx = session.beginTransaction();
            session.save(customer);
            tx.commit();
        } catch (Exception e) ...{
            if (tx != null) ...{
                tx.rollback();
            }
            throw e;
        } finally ...{
            session.close();
        }
    }
    
    public void test() throws Exception ...{

        P01_Customer customer = new P01_Customer();
        customer.setName("Laosan Zhang");
        customer.setSex('M');
        customer.setCustomerDescription("A good citizen!");
        saveCustomer(customer);
    }
    
    public static void main(String[] args) throws Exception ...{
        
        new BusinessService().test();
        sessionFactory.close();
    }
}

 Hibernate配置文件：

<? 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 >
         <!--  Database connection settings  -->
         < property  name ="hibernate.connection.provider_class" >
            org.hibernate.connection.ProxoolConnectionProvider
         </ property >
         < property  name ="hibernate.proxool.pool_alias" > MSSQL2000POOL </ property >
         < property  name ="hibernate.proxool.xml" > Proxool.xml </ property >
         <!--  SQL dialect  -->
         < property  name ="dialect" >
            org.hibernate.dialect.SQLServerDialect
         </ property >
         <!--  Echo all executed SQL to stdout  -->
         < property  name ="show_sql" > false </ property >
         <!--  Drop and re-create the database schema on startup  -->
         < property  name ="hbm2ddl.auto" > create </ property >

     </ session-factory >
</ hibernate-configuration >

 连接池配置文件：

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

< something-else-entirely >
     < proxool >
         < alias > MSSQL2000POOL </ alias >
         < driver-url > jdbc:jtds:sqlserver://localhost:1433/hibernate3 </ driver-url >
         < driver-class > net.sourceforge.jtds.jdbc.Driver </ driver-class >
         < driver-properties >
             < property  name ="user"  value ="sa"   />
             < property  name ="password"  value ="sa"   />
         </ driver-properties >
         < maximum-connection-count > 10 </ maximum-connection-count >
         < house-keeping-test-sql >
            select CURRENT_DATE
         </ house-keeping-test-sql >
     </ proxool >
</ something-else-entirely >