.NET cookie 使用方法
创建 C# cookie,两种方法
Response.Cookies["userName"].Value = "patrick"; Response.Cookies["userName"].Expires = DateTime.Now.AddDays(1); HttpCookie aCookie = new HttpCookie("lastVisit"); aCookie.Value = DateTime.Now.ToString(); aCookie.Expires = DateTime.Now.AddDays(1); Response.Cookies.Add(aCookie);
二、读取代码 ,http://www.cnblogs.com/firstcsharp/archive/2013/06/08/3127209.html【详解】
if(Request.Cookies["userName"] != null) Label1.Text = Server.HtmlEncode(Request.Cookies["userName"].Value); if(Request.Cookies["userName"] != null) { HttpCookie aCookie = Request.Cookies["userName"]; Label1.Text = Server.HtmlEncode(aCookie.Value); }
三、写个MVC ACTION 关于删除 增加 cookie 的
public ActionResult Index() { if (Request.Cookies["userName"] != null) { HttpCookie f = Request.Cookies["userName"]; int limit = Request.Cookies.Count; //获取当前网站所有cookie名字 for (int i = 0; i < limit; i++) { Response.Write(Server.HtmlEncode(Request.Cookies[i].Name)); } Request.Cookies.Remove("userName"); //删除某个cookie名字 Response.Write(Request.Cookies["userName"] == null ? "userName被删除了":Request.Cookies["userName"].Value); } else { HttpCookie aCookie = new HttpCookie("userName"); aCookie.Value = DateTime.Now.ToString(); aCookie.Expires = DateTime.Now.AddDays(1); Response.Cookies.Add(aCookie); HttpCookie p = new HttpCookie("aaaaa"); p.Value = "123"; p.Expires = DateTime.Now.AddDays(1); Response.Cookies.Add(p); } return View(); }
四、c# 与 javascript 增加的cookie 可以相互使用
<script> var date = new Date(); date.setDate(date.getDate() + 7); document.cookie = ‘user=‘ + encodeURIComponent("cpuaaa") + ";path=" + "C:/Documents%20and%20Settings/Administrator/%E6%A1%8C%E9%9D%A2/cpu;expires=" + date; document.cookie = "url=cpu.com"; document.cookie = "gg=cpugege.com"; //以上为增加多个 cookie alert(document.cookie); //获取某个字段的COOKIE方法 function getCookie(name) { var cookieName = encodeURIComponent(name) + ‘=‘; var cookieStart = document.cookie.indexOf(cookieName);//indexOf(找到这个字符串的位置) if (cookieStart > -1) { var cookieEnd = document.cookie.indexOf(";", cookieStart);//indexOf(索引到某处,从某位置开始索引(数字)) if (cookieEnd == -1) { cookieEnd = document.cookie.length; } } return document.cookie.substring(cookieStart + cookieName.length, cookieEnd); } alert(getCookie(‘aaaaa‘));// 调用测试 alert(getCookie(‘url‘)); </script>
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