Asp.net 操作cookie大全
实例代码:
下面是写cookie
HttpCookie cookie = new HttpCookie("Info");//定义cookie对象以及名为Info的项 DateTime dt = DateTime.Now;//定义时间对象 TimeSpan ts=new TimeSpan(1,0,0,0);//cookie有效作用时间,具体查msdn cookie.Expires = dt.Add(ts);//添加作用时间 cookie.Values.Add("user","cxbkkk");//增加属性 cookie.Values.Add("userid","1203"); Response.AppendCookie(cookie);//确定写入cookie中
读取cookie
if(Request.Cookies["Info"]!=null) { string temp=Convert.ToString(Request.Cookies["Info"].Values["user"])+" "+Convert.ToString(Request.Cookies["Info"].Values["userid"]); //读全部就用Request.Cookies["Info"].Value if(temp=="") { Response.Write("空"); } else Response.Write(temp); } else { Response.Write("error"); }
修改cookie
Response.Cookies["Info"]["user"] = "2"; Response.Cookies["Info"].Expires = DateTime.Now.AddDays(1);
删除cookie下的属性
HttpCookie acookie=Request.Cookies["Info"]; acookie.Values.Remove("userid"); acookie.Expires = DateTime.Now.AddDays(1); Response.Cookies.Add(acookie);
删除所有cookie,就是设置过期时间为现在就行了
int limit=Request.Cookies.Count - 1; for(int i=0;i<limit;i++) { acookie = Request.Cookies(i) acookie.Expires = DateTime.Now.AddDays(-1) Response.Cookies.Add(acookie) }