Hibernate 实现简单的数据库查询

package com.ustc.hibernate.model;import java.util.ArrayList;import java.util.Iterator;import java.util.List;import org.hibernate.Query;import org.hibernate.Session;import org.hibernate.SessionFactory;import org.hibernate.cfg.Configuration;public class PersonTest {public static void main(String[] args) {//Person p=new Person();List<Person> qlist=new ArrayList();//p.setAge(24);//p.setId(2);//p.setName("chris");Configuration cfg=new Configuration();//Configuration类的作用是对Hibernate进行配置，加载配置文件SessionFactory sf=cfg.configure().buildSessionFactory();//通过Configuration类的实例cfg来构建SessionFactorySession session=sf.openSession();//从SessionFactory获取sessionsession.beginTransaction();//session相当于JDBC里的ConnectionString hql="from Person p";Query q=session.createQuery(hql);qlist=q.list();for(Person p:qlist){System.out.println("ID："+p.getId());System.out.println("姓名："+p.getName());System.out.println("年龄："+p.getAge());}//session.save(p);session.getTransaction().commit();session.close();sf.close();}}

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