cookie记住账户密码

 //cookie保存路径
 String autologin=request.getParameter("autologin");
 String path = request.getContextPath()+"/";
 if(autologin!=null&&autologin.equals("on")){
        Cookie cookie = new Cookie("user",username+"-"+password);
        cookie.setMaxAge( *  *  * );
        cookie.setPath(path);
        response.addCookie(cookie);
  }else{//清空cookie
        Cookie[] cookies = request.getCookies();
        for(int i=;i<cookies.length;i++){
            if(cookies[i].getName().equals("user")){
                 //System.out.println(cookies[i].getName() + ":" + cookies[i].getValue());
                 Cookie cookie = new Cookie(cookies[i].getName(), null);
                 cookie.setMaxAge();
                 cookie.setPath(path);//根据你创建cookie的路径进行填写
                 response.addCookie(cookie);
             }
       }
  }   

 //页面取cookie
 <%
 String name="";
 String passward="";
 Cookie[] cookies=request.getCookies();
 if(cookies!=null){
     for(int i=;i<cookies.length;i++){
         if(cookies[i].getName().equals("user")){
             name=cookies[i].getValue().split("-")[];
             passward=cookies[i].getValue().split("-")[];
             request.setAttribute("username",name);
             request.setAttribute("password",passward);
         }
     }
 }
 %>