testdemo.java

Hibernate中的映射例子

package test.otm.demo;

import java.util.Iterator;

import org.hibernate.Session;
import org.hibernate.Transaction;

import test.otm.pojo.Jd;
import test.otm.pojo.Qx;
import test.otm.sf.HibernateSessionFactory;

public class TestDemo<T> {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		/*Qx qx=new Qx();
		qx.setQxid(2);
		qx.setQx("山南区");
		//new TestDemo().add(qx);
		
		Jd jd1=new Jd();
		jd1.setJdid(7);
		jd1.setJd("和平路");
		jd1.setQx(qx);
		Jd jd2=new Jd();
		jd2.setJdid(8);
		jd2.setJd("八一路");
		jd2.setQx(qx);
		Jd jd3=new Jd();
		jd3.setJdid(9);
		jd3.setQx(qx);
		jd3.setJd("五四大道");
		TestDemo test=new TestDemo();
		test.add(jd1);
		test.add(jd2);
		test.add(jd3);*/
		Session session=HibernateSessionFactory.getSession();
		Transaction tx=session.beginTransaction();
		Qx qx=(Qx)session.get(Qx.class, 1);
		System.out.println(qx.getQx());
		Iterator it=qx.getJds().iterator();
		while(it.hasNext()){
			Jd jd=(Jd)it.next();
			System.out.print(jd.getJd()+"  ");
		}
		tx.commit();
		session.close();
	}
	public void add(T t){
		Session session;
		Transaction tx;
		session=HibernateSessionFactory.getSession();
		tx=session.beginTransaction();
		try{
			session.save(t);
			tx.commit();
		}catch(Exception e){
			tx.rollback();
			e.printStackTrace();
		}finally{
			session.close();
		}
	}

}