loginaction.java

本系统是用NetBeans IDE 6.1所写

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

package com.online.actions;

import com.online.forms.LoginForm;
import com.online.pojo.User;
import com.online.service.*;
import java.util.ArrayList;
import java.util.List;
//import javax.ejb.ObjectNotFoundException;
import javax.servlet.ServletContext;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import javax.servlet.http.HttpSession;
import org.apache.struts.action.ActionErrors;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMessage;
import org.apache.struts.action.ActionMessages;

/**
 *
 * @author Administrator
 */
public class LoginAction extends org.apache.struts.action.Action {

    private final static String SUCCESS = "success";
 
    public ActionForward execute(ActionMapping mapping, ActionForm  form,
            HttpServletRequest request, HttpServletResponse response)
            throws Exception {
            List ErrorMessages=new ArrayList();
            ActionErrors errors = new ActionErrors();
            saveMessages(request, errors);           
            LoginForm myForm = (LoginForm) form;
            
            LoginService item=new LoginService();
            User us=item.getUser(myForm.getUsername());
            if(us==null){
                ErrorMessages.add("The user is not exist.");
                
            }
            else if((us!=null)&&(!us.getPassword().equalsIgnoreCase(myForm.getPassword()))){
                ErrorMessages.add("error password.");
            }
           
            HttpSession session=request.getSession();
            if(!ErrorMessages.isEmpty()){
                session.setAttribute("ErrorMessages",ErrorMessages);
               return mapping.findForward("error");
            }
           
            session.setAttribute("us", us);
        
            ExamQuestionService it=new ExamQuestionService();
            List tm=it.getQuestionCollection();
            System.out.println("Qustion Numbers : "+tm.size());
            session.setAttribute("tm",tm);
            return mapping.findForward("success");

        }
    }