one2manytest.java

实现一些hibernate底层的东西

package com.bjsxt.hibernate;

import java.util.HashSet;
import java.util.Set;

import junit.framework.TestCase;

import org.hibernate.Session;

public class One2ManyTest extends TestCase {
	public void testSave(){
		Session session = null;
		try{
			session = HibernateUtils.getSession();
			session.beginTransaction();
			
			Students student1 = new Students();
			student1.setName( "10" );
			session.save( student1 );
			
			System.out.println("---------1-----------");

			Students student2 = new Students();
			student2.setName( "20" );
			session.save( student2 );
			
			System.out.println("-----------2---------");
			
			
			Set students = new HashSet();
			students.add( student1 );
			students.add( student2 );
			
			Classes classes = new Classes();
			classes.setName( "shang" );
			classes.setStudents( students );			
			session.save( classes );
			
			System.out.println("------------3--------");
			
			session.getTransaction().commit();
		}catch( Exception e ){
			e.printStackTrace();
			session.getTransaction().rollback();
		}finally{
			HibernateUtils.closeSession(session);
		}
	}
}