asp.net 操作cookie的简单实例

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

以上就是asp.net 操作cookie的简单实例。没有翻但是的高山，没有走不出的沙漠，更没有超越不了的自我。更多关于asp.net 操作cookie的简单实例请关注haodaima.com其它相关文章！