initdata.java

实现一些hibernate底层的东西

package com.bjsxt.hibernate;

import junit.framework.TestCase;

import org.hibernate.Session;
import java.util.Date;

public class InitData extends TestCase {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Session session = null;
		try{
			session = HibernateUtils.getSession();
			session.beginTransaction();
			
			for( int i = 0 ; i < 10 ; i++ ){
				Classes classes = new Classes();
				classes.setName( "clab" + i );
				session.save( classes );
				for( int j = 0 ; j < 10 ; j++ ){
					Student student = new Student();
					student.setName( "clab" + i + "的球员" + j );
					student.setCreateTime( randomDate( "2008-01-01" , "2008-03-01" ) );
					
					student.setClasses(classes);
					session.save( student );
				}
			}
			
			session.getTransaction().commit();
			
		}catch( Exception e ){
			e.printStackTrace();
			session.getTransaction().rollback();
		}finally{
			HibernateUtils.closeSession(session);
		}
	}

}