hibernate3学习笔记(四) 增删改查[Java编程]

测试代码:

package com.hb3.pack_01;

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

import com.hb3.pack_01.model.User;

public class BusinessService {

public static void main(String[] args) {

Configuration config = new Configuration().configure();
SessionFactory sessionFactory = config.buildSessionFactory();
Session session = sessionFactory.openSession();

//insert
User user = new User();
user.setName("chenyan");
//user.setAge(new Integer(23));
Transaction tx = session.beginTransaction();
session.save(user);
tx.commit();

//get
user = (User) session.get(User.class, user.getId());
System.out.println(user.getAge());

//update
user.setAge(new Integer(24));
tx= session.beginTransaction();
session.update(user);
tx.commit();

//load
user = (User) session.load(User.class, user.getId());
System.out.println(user.getAge());

//delete
tx = session.beginTransaction();
session.delete(user);
tx.commit();

session.close();
sessionFactory.close();
}
}
履行后果:

11:50:50,750 WARN ConfigurationFactory:127 - No configuration found. Configuring ehcache from ehcache-failsafe.xml found in the classpath: jar:file:/D:/Java/MyEclipse%206.0/workspace/hb3demo/ehcache-1.2.3.jar!/ehcache-failsafe.xml
11:50:51,156 WARN EhCacheProvider:93 - Could not find configuration [org.hibernate.cache.UpdateTimestampsCache]; using defaults.
11:50:51,171 WARN EhCacheProvider:93 - Could not find configuration [org.hibernate.cache.StandardQueryCache]; using defaults.
Hibernate: insert into user (name, age) values (?, ?)
null
Hibernate: update user set name=?, age=? where id=?
24

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