ssh框架实现登录注册 数据库自己建

package com.Dao; import java.util.List; import org.springframework.orm.hibernate3.support.HibernateDaoSupport; import com.entity.User; public class UserDaoImpl extends HibernateDaoSupport implements UserDao{ @Override public void saveUser(User user) { // TODO Auto-generated method stub this.getHibernateTemplate().save(user); } @Override public User findUser(User user) { // TODO Auto-generated method stub User firstuser = new User(); //HQL查询语句 String hql = "from User user where user.username='" + user.getUsername() + "' and user.password= '" + user.getPassword() + "'"; //将查询出的结果放到List List<User> userlist=(List<User>) this.getHibernateTemplate().find(hql); //判断是否有查询结果，换句话说就是判断用户是否存在 if(userlist.size()>0){ //取出查询结果的第一个值，理论上数据库是没有重复的用户信息 firstuser = userlist.get(0); } return firstuser; } }