ASP.NET中读写cookie数据示例代码

ASP.NET中的cookie：创建Cookie方法 (1)

Response.Cookies["userName"].Value = “admin";

Response.Cookies[“userName”].Expires = DateTime.Now.AddDays(1);

//如果不设置失效时间,Cookie信息不会写到用户硬盘,浏览器关闭将会丢弃。

ASP.NET中的cookie：创建Cookie方法 (2)

HttpCookie aCookie = new HttpCookie(“lastVisit”);

//上一次访问时间

aCookie.Value = DateTime.Now.ToString();

aCookie.Expires = DateTime.Now.AddDays(1);

Response.Cookies.Add(aCookie);

ASP.NET中的cookie：访问Cookie方法(1)

if(Request.Cookies["userName"] != null)

Label1.Text = Server.HtmlEncode(Request.Cookies["userName"].Value);

访问Cookie方法(2)

if(Request.Cookies["userName"] != null) {

HttpCookie aCookie = Request.Cookies["userName"];

Label1.Text = Server.HtmlEncode(aCookie.Value);

}

ASP.NET中的cookie：创建多值Cookie方法 (1)

Response.Cookies["userInfo"]["userName"] = “admin";

Response.Cookies["userInfo"]["lastVisit"] = DateTime.Now.ToString();

Response.Cookies["userInfo"].Expires = DateTime.Now.AddDays(1);

ASP.NET中的cookie：创建多值Cookie方法 (2)

HttpCookie aCookie = new HttpCookie("userInfo");

aCookie.Values["userName"] = “admin";

aCookie.Values["lastVisit"] = DateTime.Now.ToString();

aCookie.Expires = DateTime.Now.AddDays(1);

Response.Cookies.Add(aCookie);

ASP.NET中的cookie：读取多值Cookie

HttpCookie aCookie = Request.Cookies["userInfo"];

string userName=aCookie.Values[“userName”];

string lastVisit=aCookie.Values[“lastVisit”];

ASP.NET中的cookie：修改和删除Cookie

不能直接修改或删除Cookie，只能创建一个新的Cookie，发送到客户端以实现修改或删除Cookie。

JS操作cookies示例代码

最近项目中用到JS操作cookies的小功能，以下是简单的示例代码，希望对大家有帮助：

//写cookies

function setCookie(name,value)

{

var Days = 30;

var exp = new Date();

exp.setTime(exp.getTime() + Days*24*60*60*1000);

document.cookie = name + "="+ escape (value) + ";expires=" + exp.toGMTString();

}

//读取cookies

function getCookie(name)

{

var arr,reg=new RegExp("(^| )"+name+"=([^;]*)(;|$)");

if(arr=document.cookie.match(reg)) return unescape(arr[2]);

else return null;

}

//删除cookies

function delCookie(name)

{

var exp = new Date();

exp.setTime(exp.getTime() - 1);

var cval=getCookie(name);

if(cval!=null) document.cookie= name + "="+cval+";expires="+exp.toGMTString();

}