hibernate的增删改查

package com.endual.test;

 import java.util.ArrayList;
 import java.util.Date;
 import java.util.List;

 import org.hibernate.Query;
 import org.hibernate.Session;
 import org.hibernate.SessionFactory;
 import org.hibernate.Transaction;
 import org.hibernate.cfg.Configuration;

 import com.endual.model.Person;

 import junit.framework.TestCase;

 public class T extends TestCase {
   
     @Override
     protected void setUp() throws Exception {
         // TODO Auto-generated method stub
         super.setUp();
     }

     @Override
     protected void tearDown() throws Exception {
         // TODO Auto-generated method stub
         super.tearDown();
     }

     public void testSave(){
         
         Configuration cfg = new Configuration().configure();
         SessionFactory sf = cfg.buildSessionFactory();
         
          Session session = sf.openSession();
         
          Transaction tran = session.beginTransaction();
          //tran.begin();
         
          Person person = new Person();
             person.setId(1);
          person.setName("ch");
          person.setPassword("123");
          person.setCreateTime(new Date());
          person.setExpireTime(new Date());//事务层
          
          session.update(person);//持久层
          
          
          tran.commit();
          
          session.close();//游离层了
          
         
     }
     
 public void testfind(){
         
         Configuration cfg = new Configuration().configure();
         SessionFactory sf = cfg.buildSessionFactory();
         
          Session session = sf.openSession();
         
          Transaction tran = session.beginTransaction();
     
         //Person person =  (Person) session.get(Person.class, 5);
         
          Person person =  (Person)session.load(Person.class, 5);
          tran.commit();
          
          session.close();//游离层了
          
         //int a = person.getId();
         //System.out.println(a);
     }


 public void testDel(){
     
     Configuration cfg = new Configuration().configure();
     SessionFactory sf = cfg.buildSessionFactory();
     
      Session session = sf.openSession();
     
      Transaction tran = session.beginTransaction();

     // Person person =  (Person) session.get(Person.class, 1);
      
      Person person = new Person();
      person.setId(1);
      session.delete(person);
      tran.commit();
      
      session.close();//游离层了
     
 }


 public void testfindAll(){
     
     Configuration cfg = new Configuration().configure();
     SessionFactory sf = cfg.buildSessionFactory();
      Session session = sf.openSession();
      Transaction tran = session.beginTransaction();
     //Person person =  (Person) session.get(Person.class, 5);
      List<Person> list = new ArrayList<Person>();
      Query query = session.createQuery("from Person");
      list = query.list();
      System.out.print(list.size());
      tran.commit();
      session.close();//游离层了
      
     //int a = person.getId();
     //System.out.println(a);
 }
     
 }