<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<script language="JavaScript" type="text/javascript">
function addCookie(objName, objValue, objHours) {//添加cookie
//escape() 函数可对字符串进行编码，
var str = objName + "=" + escape(objValue);
if (objHours > 0) {//为0时不设定过期时间，浏览器关闭时cookie自动消失
var date = new Date();
var ms = objHours * 3600 * 1000;
date.setTime(date.getTime() + ms);
//expires指定了coolie的生命期
str += "; expires=" + date.toGMTString();
}
document.cookie = str;
alert("添加cookie成功");
}
function getCookie(objName) {//获取指定名称的cookie的值
var arrStr = document.cookie.split("; ");
for (var i = 0; i < arrStr.length; i++) {
var temp = arrStr[i].split("=");
if (temp[0] == objName)
return unescape(temp[1]);
}
}
function delCookie(name) {//为了删除指定名称的cookie，可以将其过期时间设定为一个过去的时间
var date = new Date();
date.setTime(date.getTime() - 10000);
document.cookie = name + "=a; expires=" + date.toGMTString();
}
function allCookie() {//读取所有保存的cookie字符串
var str = document.cookie;
if (str == "") {
str = "没有保存任何cookie";
}
alert(str);
}
function add_() {
var cookie_name = document.getElementById("cookie_name").value;
var cookie_value = document.getElementById("cookie_value").value;
var cookie_expireHours = document.getElementById("cookie_expiresHours").value;
addCookie(cookie_name, cookie_value, cookie_expireHours);
}
function get_() {
var cookie_name = document.getElementById("cookie_name").value;
var cookie_value = getCookie(cookie_name);
alert(cookie_value);
}
function del_() {
var cookie_name = document.getElementById("cookie_name").value;
delCookie(cookie_name);
alert("删除成功");
}
</script>
</head>
<body>
<form name="myform" runat="server">
<div>
<label for="cookie_name">
名称
</label>
<input type="text" id="cookie_name" name="cookie_name" runat="server" />
</div>
<div>
<label for="cookie_value">
值 </lable>
<input type="text" id="cookie_value" name="cookie_value" />
</div>
<div>
<label for="cookie_expireHours">
多少个小时过期 </lable>
<input type="text" id="cookie_expiresHours" name="cookie_expiresHours" />
</div>
<div>
<input type="button" value="添加该cookie" onclick="add_()" /><input type="button" value="读取所有cookie"
onclick="allCookie()" /><input type="button" value="读取该名称cookie" onclick="get_()" /><input
type="button" value="删除该名称cookie" onclick="del_()" />
<asp:Button ID="Button1" runat="server" Text="后台读取前台cookie"
onclick="Button1_Click1" />
</div>
</form>
</body>
</html>
protected void Button1_Click1(object sender, EventArgs e)
{
//一般在web应用程序里,你的程序都是为了处理客户端过来的http请求而执行的,当前正在处理的这个请求的一些上下文信息就保存在一个HttpContext对象里,
//你通过HttpContext的静态属性Current得到当前这个上下文,然后去取你需要的信息,比如查询字符串等。
string UserID = HttpContext.Current.Request.Cookies["" + cookie_name.Value + ""].Value;
}
