无论输入什么帐号密码都没有通过action成功转跳
提交表单后控制台输出语句
WARN: [DEPRECATION] Encountered positional parameter near line 1, column 34 in HQL: [from entity.Users where username=? and password=? ]. Positional parameter are considered deprecated; use named parameters or JPA-style positional parameters instead.
三月 01, 2018 6:34:23 下午 org.hibernate.hql.internal.ast.HqlSqlWalker generatePositionalParameter
WARN: [DEPRECATION] Encountered positional parameter near line 1, column 49 in HQL: [from entity.Users where username=? and password=? ]. Positional parameter are considered deprecated; use named parameters or JPA-style positional parameters instead.
Hibernate:
select
users0_.uid as uid1_1_,
users0_.username as username2_1_,
users0_.password as password3_1_
from
USERS users0_
where
users0_.username=?
and users0_.password=?
public class UserDAOImpl implements UsersDAO{ @Override public boolean usersLogin(Users u) { // TODO Auto-generated method stub //创建事物对象 //事务(Transaction)是访问并可能更新数据库中各种数据项的一个程序执行单元(unit) Transaction ts = null; String hql = ""; try { Session session = MyHibernateSessionFactory.getSessionFactory().getCurrentSession(); //开启事物 ts =session.beginTransaction(); //hql查询语句 hql = "from Users where username=? and password=? "; //Query是Hibernate的查询接口，用于从数据存储源查询对象及控制执行查询的过程，Query包装了一个HQL查询语句 org.hibernate.Query query =session.createQuery(hql); //传递参数 query.setParameter(0, u.getUsername()); query.setParameter(1, u.getPassword()); //调用其中的方法得到结果 List list =query.list(); ts.commit(); if (list.size()>0) { return true; } else { return false; } } catch (Exception ex) { // TODO: handle exception //打印异常对象 ex.printStackTrace(); return false; } finally{ //释放事物对象资源 if (ts!=null) { ts=null; } } } }public class UsersAction extends superAction implements ModelDriven{ /** * */ private static final long serialVersionUID = 1L; private Users user = new Users(); //用户登录动作 public String login() { UsersDAO udao =new UserDAOImpl(); if (udao.usersLogin(user)) { return "login_success"; } else { return "login_failure"; } } @Override public Users getModel() { // TODO Auto-generated method stub return this.user; }} |
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