记住我功能实现

一、登陆时记住我功能实现。

1. 首先在前端界面添加一个单选框，当表单提交的时候会一起提交过来。同时单选框发送的属性值分为ture和false。

<input type="submit" id="btnLogin" value="登录" class="login-btn" /><span id="errorMsg" style="font-size:14px;color:red;display:none"></span>
                                        <input type="checkbox" value="1" name="checkbox" />记住我

2. 如果选中，也就是返回为ture，执行如下

 //如果选中记住我，那么将值存进cookie中
                if (!string.IsNullOrEmpty(Request["checkbox"]))
                {
                    HttpCookie cookie1 = new HttpCookie("cp1", userInfo.UName);
                    HttpCookie cookie2 = new HttpCookie("cp2", Common.WebCommon.GetMd5String(userInfo.UPwd));
                    cookie1.Expires = DateTime.Now.AddDays(2);
                    cookie2.Expires = DateTime.Now.AddDays(2);
                    Response.Cookies.Add(cookie1);
                    Response.Cookies.Add(cookie2);
                }

3. 当退出登陆时，清空cookie中的值

  //退出登陆
        #region 退出登陆
        [HttpPost]
        public ActionResult Quit()
        {
            Response.Cookies["cp1"].Expires = DateTime.Now.AddDays(-1);
            Response.Cookies["cp2"].Expires = DateTime.Now.AddDays(-1);

            if (Request.Cookies["sessionId"] != null)
            {
                //首先获取到Memcache对应的cookies值。
                string sessionId = Request.Cookies["sessionId"].Value;
                object obj = Common.MemcacheHelper.Get(sessionId);
                if (obj != null)
                {
                    //Response.Cookies["sessionId"].Expires = DateTime.Now.AddDays(-1);
                    //UserInfo userinfo = obj as UserInfo;
                    UserInfo userinfo = Common.SerializeHelper.DeserializeToObject<UserInfo>(obj.ToString());
                    Loginuser = userinfo;
                    Common.MemcacheHelper.Set(sessionId, obj, DateTime.Now.AddDays(-1));//模拟滑动过期时间
                    Common.MemcacheHelper.Delete(sessionId);

                }
            }
            //string str=Request.Cookies["sessionId"].Value;
            //Common.MemcacheHelper.Set(sessionId, obj, DateTime.Now.AddMinutes(20))
            //Common.MemcacheHelper.Delete(str);
            //Response.Cookies["sessionId"].Expires = DateTime.Now.AddDays(-1);
            //Request.Cookies.Clear();
            return Content("1");
            //return RedirectToAction("/Login/Index");    
        }
        #endregion