Hibernate 编写测试类，进行增删改查 自动生成表

1.添加数据

package com.hlg.whd;

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



public class test {
	@Test
				public void sss(){
				Configuration  cig = new Configuration().configure();
				SessionFactory sessionFactory = cig.buildSessionFactory();
				Session session = sessionFactory.openSession();
				Transaction t = session.beginTransaction();
				Costmer c =new Costmer();	
				
				
				c.setUsername("王琛昱");
				c.setPassword("1888");
				session.save(c);
				t.commit();
				session.close();
				sessionFactory.close();


}
}

添加前添加后

2.修改数据

package com.hlg.whd;

import org.hibernat