hibernate查询问题

[皮皮]

在DAO实现类中
public Login findLogin(String userName, String password) {
Object[] obj = { userName, password };
Login lg = new Login();
//List l = this.getHibernateTemplate().find("from Login l where l.userName='" + userName + "'and l.password='" + password + "'");

List l = this.getHibernateTemplate().find(LOAD_BY_PASSWORD,obj);
System.out.println("list size is " + l.size());
if (l == null || l.size() == 0 || l.isEmpty()) {
return null;
} else {
lg = (Login) l.get(0);
System.out.println(lg.getId());

return lg;
}
测试通过了，没有什么问题。可在struts中Action 中用
Login login2=AppContext.getInstance().getAppContext().getBean("loginService").findLogin(lf.getUserName(),lf.getPassword());
System.out.println(login2==null);
System.out.println(login2.getUserName());

程序走到期System.out.println(login2.getUserName());就出错了，NULL值错误。
后台打出这个了list size is 1. 帮帮忙

[皮皮]

高手帮帮忙。up!!!!