登录注册系统源码三层实现

package com.sfish.dao.hibernate; import java.util.List; import org.springframework.orm.hibernate3.support.HibernateDaoSupport; import com.sfish.dao.UserDao; import com.sfish.model.User; public class UserDaoHibernate extends HibernateDaoSupport implements UserDao { public void delete(int id) { getHibernateTemplate().delete(getHibernateTemplate().get(User.class , id)); } public void delete(User user) { getHibernateTemplate().delete(user); } @SuppressWarnings("unchecked") public List<User> findAll() { return (List<User>)getHibernateTemplate().find("from User"); } @SuppressWarnings("unchecked") public User findUserByName(String username) { List<User> u1 = getHibernateTemplate().find("from User u where u.username=?",username); if(u1 != null && u1.size() >= 1){ return (User)u1.get(0); } return null; } @SuppressWarnings("unchecked") public User findUserByNamePass(String username, String password) { List<User> u1 = getHibernateTemplate().find("from User u where u.username= ? and u.password = ?", new String[]{username , password}); if(u1 != null && u1.size()>=1){ return (User)u1.get(0); } return null; } public User get(int id) { return (User)getHibernateTemplate().get(User.class, id); } public void sava(User user) { getHibernateTemplate().save(user); } public void updata(User user) { getHibernateTemplate().update(user); } }