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                   session.delete(user);

                   tx.commit();

                   session.close();}

更新 : session.update()

public void testUpdate(){

                   Configuration conf=new Configuration();

                   conf.configure();

                   SessionFactory factory=conf.buildSessionFactory();

                   Session session=factory.openSession();

                   Transaction tx=session.beginTransaction();

                   User user=(User) session.load(User.class, 2);

                   user.setEmail("77758521.@163.com");

                   session.update(user);

                   tx.commit();

                   session.close();

         }

findById查詢  session.load()

    findAll查詢 Query query = session.createQuery("from User");

                 List list = query.list();

public void testFindAll(){

                   Configuration congfig=new Configuration();

                   congfig.configure();

                   SessionFactory factory=congfig.buildSessionFactory();

                   Session session=factory.openSession();

                   Query query=session.createQuery("from User");

                   List list=query.list();

                   for(User user:list){

                   System.out.println(user.getId()+""+user.getEmail());}

                   session.close();}

   3)Hibernate提供的映射類(lèi)型

     在hbm.xml映射文件中,利用type="映射類(lèi)型"使用.

主要作用是指定屬性和字段之間的如何進(jìn)行類(lèi)型轉(zhuǎn)換

    *整數(shù):integer,long

    *浮點(diǎn)數(shù):double

    *字符串:string

    *日期時(shí)間:date(僅包含年月日),timestamp(包含年月日時(shí)分秒)

    *布爾:true_false 完成布爾屬性和T,F字符之間的轉(zhuǎn)換

          yes_no  完成布爾屬性和Y,N字符之間的轉(zhuǎn)換