asp.net 操作cookie

来源：互联网发布：下厨房可以在淘宝编辑：程序博客网时间：2024/06/10 02:17
 protected void Page_Load(object sender, EventArgs e)    {        if (!IsPostBack)        {            HttpCookie cookie = Request.Cookies["loginInfo"];            if (cookie != null)            {                cb_repwd.Checked = true;                tb_loginName.Text = UIHelper.Decrypt(cookie["loginName"]);                tb_pwd.Attributes.Add("value", UIHelper.Decrypt(cookie["pwd"]));            }            else            {                tb_pwd.Attributes.Add("value", "******");            }            }           }    protected void btn_login_Click(object sender, EventArgs e)    {        if (UIHelper.GetString(Session["Code"]).ToUpper()!=this.tb_code.Text.Trim().ToUpper())        {            oJavaScript.Alert("验证码输入不正确");            return;        }        NetUserService NerService = ContextFactory.GetObject<NetUserService>("NetUserService");        string sql = string.Format("from NetUser where LoginName='{0}'", tb_loginName.Text.Trim());        IList<NetUser> list = NerService.Find(sql);        if (list.Count > 0)        {            if (list[0].Status == 2)            {                oJavaScript.Alert("帐号已停用，请联系管理员");                return;            }        }        if (NerService.Login(tb_loginName.Text.Trim(), oSecurity.GetPwdEncrypt(tb_pwd.Text.Trim())))        {            HttpCookie cookie = Request.Cookies["loginInfo"];            if (cb_repwd.Checked)            {                if (cookie == null)                {                    HttpCookie cookielogin = new HttpCookie("loginInfo");                    setCookies(cookielogin,7);                }                else                {                    if (UIHelper.Decrypt(Request.Cookies["loginInfo"]["loginName"]) != tb_loginName.Text.Trim())                    {                        setCookies(cookie, 7);                    }                }            }            else            {                setCookieExpires(cookie);            }                                  oJavaScript.Redirect("/");        }        else        {            oJavaScript.Alert( "用户名或密码不正确");        }    }    #region cookie    /// <summary>    /// 设置cookie    /// </summary>    /// <param name="cookielogin">HttpCookie cookielogin</param>    /// <param name="Expires">有效期</param>    private void setCookies(HttpCookie cookielogin, int Expires)    {        cookielogin.Values["loginName"] = UIHelper.Encrypt(tb_loginName.Text.Trim());        cookielogin.Values["pwd"] = UIHelper.Encrypt(tb_pwd.Text.Trim());        cookielogin.Expires = DateTime.Now.AddDays(Expires);        Response.AppendCookie(cookielogin);    }    /// <summary>    /// 设置cookie失效    /// </summary>    /// <param name="cookielogin">HttpCookie cookielogin</param>    private void setCookieExpires(HttpCookie cookielogin)    {        if (cookielogin != null)        {            cookielogin.Expires = DateTime.Now.AddDays(-1); ;            Response.AppendCookie(cookielogin);        }    }    #endregion
设置cookie过期其实就是修改cookie，必须重新向客户端发送cookie
Request.Cookies取cookie, response，cookies添加cookie
虽然简单，但是不太了解的还是很容易出错
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