package com.controller; import java.util.List; import com.dao.UserDaodyh; import com.entity.Userdyh; public class UserActiondyh { public String login(String username, String passwd) { String result = null; try { List userList = UserDaodyh.query(); for (Userdyh user : userList) { if (user.getUserName().equals(username) && user.getPassword().equals(passwd)) { result = "1"; } else if(username.equals("") || passwd.equals("")) { result = "2"; } else result="3"; } } catch (Exception e) { e.printStackTrace(); } return result; } }