Hibernate Session中get()跟load()方法的区别

Hibernate Session中get()和load()方法的区别

具体示例见如下代码：

package com.oracle.entities;

import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.Test;


/**
 * @author Wentasy
 *
 */
public class HBTest {
	private static SessionFactory sf = null;
	private static Session session = null;
	
	@BeforeClass
	public static void before(){
		//加载配置文档，读取相关配置，创建连接工厂
		sf = new Configuration().configure().buildSessionFactory();
		//从工厂获得一个连接
		session = sf.openSession();
		//开启一个事务
		session.beginTransaction();
	}

	@Test
	public void testGet(){
		User user = new User();
		user = (User)session.get(User.class, 4);
		System.out.println(user.getName());
	}
	
	@Test
	public void testLoad(){
		User user = new User();
		user = (User)session.load(User.class, 4);
		System.out.println(user.getName());
	}
	
	@AfterClass
	public static void after(){
		//提交一个事务
		session.getTransaction().commit();
		//关闭连接
		session.close();
	}
}

首先testGet和testLoad方法均不输出属性，观察输出结果：

testGet方法：

Hibernate Session中get()跟load()方法的区别