personoperate.java

内容： 讲解Hibernate的实体映射技术

package org.lxh.hibernate;

import java.util.List;

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

public class PersonOperate {
	private Session session ;
	
	public PersonOperate()
	{
		Configuration config = new Configuration().configure() ;
		SessionFactory factory = config.buildSessionFactory() ;
		this.session = factory.openSession() ;
	}
	// 测试增加操作
	public void insert(Person p)
	{
		// 将数据存放到数据库之中
		this.session.save(p) ;
		// 事务提交
		this.session.beginTransaction().commit() ;
	}
	// 取得全部数据
	public List queryAll()
	{
		String hql = "FROM Person as p" ;
		Query q = this.session.createQuery(hql) ;
		List l = q.list() ;
		return l ;
	}
}