第十章_Spring_-_ORM

1、Spring ORMSpring ORM是啥？Spring ORM的优点Spring ORM的优点Spring与Hibernate整合n整合目的：在Spring中接管Hibernate的SessionFactory在Spring接管Hibernate的Session和TransactionSpring与Hibernate整合n开发环境搭建将Spring的包，它依赖的包和Hibernate的包添加到当前项目的环境变量中来将数据的驱动也添加进来Spring与Hibernate整合n需求：一张表，有用户名和年龄。要求用Spring整合Hibernate，插入数据。POJOnpublic class

2、User private String userId;private String userName;public String getUserId() nreturn userId;public void setUserId(String userId) nthis.userId = userId;public String getUserName() nreturn userName;public void setUserName(String userName) nthis.userName = userName;n持久层npublic class UserDao private Hib

3、ernateTemplate hibernateTemplate;public HibernateTemplate getHibernateTemplate() nreturn hibernateTemplate;public void setHibernateTemplate(HibernateTemplate hibernateTemplate) nthis.hibernateTemplate = hibernateTemplate;public void insert(User user) throws Exception nthis.hibernateTemplate.save(use

4、r);n逻辑层npublic class UserService private UserDao userDao;public UserDao getUserDao() nreturn userDao;public void setUserDao(UserDao userDao) nthis.userDao = userDao;public void register( User user ) throws Exception nthis.userDao.insert( user );nSpring配置文件nHibernate数据库连接配置：数据库连接配置：nncom.mysql.jdbc.D

5、rivernjdbc:mysql:/localhost:3306/xue_xinrootnnSpring配置文件nHibernate的的SessionFactory配置：配置：nnn./mappings/User.hbm.xmlnnhibernate.dialect=org.hibernate.dialect.MySQLDialectnnSpring配置文件nSpring的事务管理配置的事务管理配置：nnnSpring配置文件nHibernate的操作接口配置：nnnSpring配置文件nnnnnnnnSpring配置文件n逻辑层的申明式事务代理配置：逻辑层的申明式事务代理配置：nnnnPRO

6、PAGATION_REQUIREDnn效果测试npublic static void main(String args) throws Exception User user = new User();user.setUserName(Momo);ApplicationContext ctx = new FileSystemXmlApplicationContext(./config/spring-config.xml);UserService run = ( UserService )ctx.getBean( userServiceProxy );run.register(user);nHi

7、bernateTemplate的分页npublic List query(final String hql, int startIndex, int pageSize) throws Exception nfinal int firstResult = startIndex;nfinal int maxResults = pageSize;n/ 鍒嗛鏌nList list = getHibernateTemplate().executeFind(new HibernateCallback() npublic Object doInHibernate(Session session)nthrows HibernateException, SQLException nQuery query = session.createQuery( hql );nquery.setFirstResult( firstResult );nquery.setMaxResults( maxResults );nList list = query.list();nreturn list;nn);nreturn list;n人有了知识，就会具备各种分析能力，明辨是非的能力。所以我们要勤恳读书，广泛阅读，古人说