loginaction.java

java+strus+jdbc开发的一个网上书店系统,包括后台管理

package com.wang.action.reg;

import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.ActionForm;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.action.ActionForward;
import com.wang.form.reg.LoginActionForm;
import org.apache.struts.action.Action;
import com.wang.db.*;
import com.wang.bean.*;

public class LoginAction extends Action
{
    public ActionForward execute(ActionMapping mapping, ActionForm form,
                                 HttpServletRequest request,
                                 HttpServletResponse response)
    {
        LoginActionForm loginForm = (LoginActionForm) form;
        String userName=loginForm.getUserNmae();
        String userPwd=loginForm.getUserPwd();
        MyDb md=new MyDb();
        if(request.getParameter("action")==null)
        {
            if(userName.equals("")||userPwd.equals(""))
            {
                return mapping.findForward("index");
            }
            userBean useBean = md.checkUsersLogin(userName, userPwd);
            if (useBean != null)
            {
                md.Close();
                request.getSession().setAttribute("useBean", useBean);
                request.getSession().setAttribute("shangpin","0");
                request.getSession().setAttribute("zongshu","0");
                request.getSession().setAttribute("gongji","0");
                request.getSession().setAttribute("loginms",1);
                request.getSession().setAttribute("list", new java.util.ArrayList());
                return mapping.findForward("index");
            }else
            {
                 request.getSession().setAttribute("useBean", useBean);
                 request.setAttribute("loginms",0);
                 md.Close();
                 return mapping.findForward("index");
            }



        }
        if(request.getParameter("action").equals("out"))
        {
            request.getSession().removeAttribute("useBean");
            request.getSession().removeAttribute("list");
            request.getSession().removeAttribute("shangpin");
            request.getSession().removeAttribute("zongshu");
            request.getSession().removeAttribute("gongji");
             return mapping.findForward("index");
        }
           return mapping.findForward("login");
    }
}