package test;import java.util.Date;import java.util.List;import model.Account;import org.hibernate.Query;import org.hibernate.Session;import org.hibernate.SessionFactory;import org.hibernate.Transaction;import org.hibernate.cfg.Configuration;import org.hibernate.tool.hbm2ddl.SchemaExport;import org.junit.Test;import util.HibernateUtils;public class AccountTest {	@Test	public void createTable(){		//加载hibernate.cfg.xml文件并解析		Configuration cfg=new Configuration().configure();		SchemaExport se=new SchemaExport(cfg);		//对生成的DDL语句进行格式化		se.setFormat(true);		se.setDelimiter(" ");		se.setOutputFile("account.sql");		se.create(true, true);	}		@Test	public void add(){		Session session=HibernateUtils.getSession();		//开启事务		Transaction tr=session.beginTransaction();				Account account=new Account();				account.setName("wanger");		account.setAge(20);		account.setScore(20.24);		account.setBirthday(new Date());						session.save(account);						tr.commit();			HibernateUtils.close(session);				account.setId(11);		account.setScore(98);		account.setBirthday(new Date());		account.setAge(22);		account.setName("tianqi");		Session session2=HibernateUtils.getSession();		Transaction tr2=session2.beginTransaction();		session2.merge(account);				tr2.commit();				HibernateUtils.close(session2);	}			@Test	public void update(){		//加载并解析hibernate.cfg.xml文件		Configuration cfg=new Configuration().configure();		//创建SessionFactory对象		SessionFactory sessionFactory=cfg.buildSessionFactory();		//创建Session接口负责CRUD		Session session=sessionFactory.openSession();		//开启事务		Transaction tr=session.beginTransaction();		try{			Account acc=(Account)session.get(Account.class, 1);			System.out.println(acc.toString());			acc.setAge(21);			acc.setScore(87);			session.update(acc);			tr.commit();		}catch(Exception ex){			tr.rollback();		}finally{			session.close();		}			}		@Test	public void update2(){		Session session=HibernateUtils.getSession();		//开启事务		Transaction tr=session.beginTransaction();		Account acc=(Account)session.get(Account.class, 1);		System.out.println(acc.toString());				tr.commit();		HibernateUtils.close(session);						acc.setName("zhangsan");		acc.setAge(23);		Session session2=HibernateUtils.getSession();		//开启事务		Transaction tr2=session2.beginTransaction();				session2.update(acc);		tr2.commit();				HibernateUtils.close(session2);					}		@Test	public void delete(){		Session session=HibernateUtils.getSession();		//开启事务		Transaction tr=session.beginTransaction();		Account acc=(Account)session.get(Account.class, 1);		System.out.println(acc.getId());						session.delete(acc);		tr.commit();		HibernateUtils.close(session);			}		@Test	public void get(){		Session session=HibernateUtils.getSession();		//开启事务		Transaction tr=session.beginTransaction();		Account acc=(Account)session.get(Account.class, 1);		System.out.println(acc.getId());				tr.commit();		HibernateUtils.close(session);	}		@Test	public void load(){		Session session=HibernateUtils.getSession();		//开启事务		Transaction tr=session.beginTransaction();		Account acc=(Account)session.load(Account.class, 1);		System.out.println(acc.getId());				tr.commit();		HibernateUtils.close(session);	}		@Test	public void findAll(){		Session session=HibernateUtils.getSession();		//开启事务		Transaction tr=session.beginTransaction();				String sql="from Account";		Query query=session.createQuery(sql);		List
    
      list=(List
     
      )query.list();		for(Account a:list){			System.out.println(a);		}					tr.commit();		HibernateUtils.close(session);				}}
     
    

package util;import org.hibernate.Session;import org.hibernate.SessionFactory;import org.hibernate.cfg.Configuration;public class HibernateUtils {	private static SessionFactory factory;	static{		factory=new Configuration().configure().buildSessionFactory();	}	public static SessionFactory getFactory(){		return factory;	}		public static Session getSession(){		return factory.openSession();	}		public static void close(Session session){		if(session!=null){			session.close();		}			}	}