一、设置cookies的方法很简单
1.过期时间,在Cookies文件中无法查看,也不能调用)
Response.Cookies["userName"] = "Tom";
Response.Cookies["userName"].Expires = DateTime.Now.AddDays(1);
2.用以上任一方法都可以生成一个有“userName”项的文件, 在你的Internet临时文件夹中你可以查看它。
HttpCookie cookie=new HttpCookie("userName");
cookie.Value = "Tom";
cookie.Expires = DateTime.Now.AddDays(1) ;
Response.Cookies.Add(aCookie);
二 也可以创建和添加有子键的Cookies
Response.Cookies["userInfo"]["userName"] = "Tom";
或
HttpCookie cookie=new HttpCookie("userInfo");
cookie.Values["userName"] = "Tom";
aCookie.Expires = DateTime.Now.AddDays(1);
Response.Cookies.Add(aCookie);
三、检索Cookies
Cookies某一键的值为:
Server.HtmlEncode(Request.Cookies["userInfo"]["userName"])
你可以用Response.Write()方法输出它到页面,如:
Response.Write(Server.HtmlEncode(Request.Cookies["userInfo"]["userName"]));
或赋值给其它变量:
string strCookie1=Server.HtmlEncode(Request.Cookies["userInfo"]["userName"]);
用Cookies[i]数组可以检索所有项和子键,如:
string[] cooName = new string[Request.Cookies.Count];
string[] cooValue = new string[Request.Cookies.Count];
HttpCookie aCookie;
for(int i=0;i<Request.Cookies.Count;i++){
aCookie = Request.Cookies[i];
cooName[i] = Server.HtmlEncode(aCookie.Name);
if(!aCookie.HasKeys){
cooValue[i] = Server.HtmlEncode(aCookie.Value);
}else{
string[] subcooName = new string[aCookie.Values.Count];
string[] subcooValue = new string[aCookie.Values.Count];
for(int j=0;j<aCookie.Values.Count;j++){
subcooName[j] = Server.HtmlEncode(aCookie.Values.AllKeys[j]);
subcooValue[j] = Server.HtmlEncode(aCookie.Values[j]);
}
}
}
要删除则设为:
cookie.Expires = DateTime.Now.AddDays(-1) ;
删除子键:
HttpCookie cookie;
cookie = Request.Cookies["userInfo"];
aCookie.Values.Remove("userName");
aCookie.Expires = DateTime.Now.AddDays(1);
Response.Cookies.Add(aCookie);