代码如下: <script type="text/javascript">
function CheckInfo() {
for(var i=0;i<document.getElementsByName("rdhowlong").length;i++)
{
var obj = document.getElementsByName("rdhowlong").item(i); if(obj.checked)
{
document.cookie="howlong="+obj.value;
//alert( document.cookie);
}
}
} 这个地方是设置cookie function getCookie(cookieName)
{
//获得Cookie文件中的信息
var cookieMesaage = document.cookie;
var cookieValue = "";
//获得Cookie值
if (cookieName=="howlong")
{
cookieValue = returnCookieValue(cookieMesaage, "rdhowlong");
alert("值为:"+cookieValue);
}
}
function returnCookieValue(cookieValue,cookieName)
{
var returnCookieValue = "";
var cookieNameIndex = cookieValue.indexOf(cookieName+"=");
if (cookieNameIndex!=-1)
{
var cookieValueBeginIndex = cookieNameIndex + cookieName.length + 1;
var cookieVlaueEndIndex = cookieValue.indexOf(";", cookieValueBeginIndex);
if (cookieVlaueEndIndex==-1)
{
cookieVlaueEndIndex = cookieValue.length;
}
returnCookieValue = cookieValue.substring(cookieValueBeginIndex,cookieVlaueEndIndex);
}
return returnCookieValue;
}
</script> 这个是读取cookie
<input type="radio" name="rdhowlong" id="rdganggand" value="1" />1<br />
<input type="radio" name="rdhowlong" id="rd2year" value="2" />2
<input id="Button1" type="button" value="button" onclick="CheckInfo()" /> //设置cookie
<input id="Button2" type="button" value="button" onclick= "getCookie('howlong')"> //读取cookie 问题: 1、关闭浏览器后就无法获取到之前设置的cookie了,cookie 应该是保证到电脑硬件上的吧,不像session 关闭浏览器后就失效了,而cookie 应该还会存在的啊,再次读取怎么会读取不到呢. 2、点击Button2 按钮后无法得到 cookie 值(我的操作是:先点击Button1设置一个cookie ,这时不关浏览器,然后再点击Button2 ,alert() 提示:值为:,这里并没有得到值). 就这两个问题,请大家帮帮忙,谢谢!
function CheckInfo() {
for(var i=0;i<document.getElementsByName("rdhowlong").length;i++)
{
var obj = document.getElementsByName("rdhowlong").item(i); if(obj.checked)
{
document.cookie="howlong="+obj.value;
//alert( document.cookie);
}
}
} 这个地方是设置cookie function getCookie(cookieName)
{
//获得Cookie文件中的信息
var cookieMesaage = document.cookie;
var cookieValue = "";
//获得Cookie值
if (cookieName=="howlong")
{
cookieValue = returnCookieValue(cookieMesaage, "rdhowlong");
alert("值为:"+cookieValue);
}
}
function returnCookieValue(cookieValue,cookieName)
{
var returnCookieValue = "";
var cookieNameIndex = cookieValue.indexOf(cookieName+"=");
if (cookieNameIndex!=-1)
{
var cookieValueBeginIndex = cookieNameIndex + cookieName.length + 1;
var cookieVlaueEndIndex = cookieValue.indexOf(";", cookieValueBeginIndex);
if (cookieVlaueEndIndex==-1)
{
cookieVlaueEndIndex = cookieValue.length;
}
returnCookieValue = cookieValue.substring(cookieValueBeginIndex,cookieVlaueEndIndex);
}
return returnCookieValue;
}
</script> 这个是读取cookie
<input type="radio" name="rdhowlong" id="rdganggand" value="1" />1<br />
<input type="radio" name="rdhowlong" id="rd2year" value="2" />2
<input id="Button1" type="button" value="button" onclick="CheckInfo()" /> //设置cookie
<input id="Button2" type="button" value="button" onclick= "getCookie('howlong')"> //读取cookie 问题: 1、关闭浏览器后就无法获取到之前设置的cookie了,cookie 应该是保证到电脑硬件上的吧,不像session 关闭浏览器后就失效了,而cookie 应该还会存在的啊,再次读取怎么会读取不到呢. 2、点击Button2 按钮后无法得到 cookie 值(我的操作是:先点击Button1设置一个cookie ,这时不关浏览器,然后再点击Button2 ,alert() 提示:值为:,这里并没有得到值). 就这两个问题,请大家帮帮忙,谢谢!
{
var Days = 30;
var exp = new Date();
exp.setTime(exp.getTime() + Days*24*60*60*1000);
document.cookie = name + "="+ escape (value) + ";expires=" + exp.toGMTString();
}
function getCookie(name)
{
var arr = document.cookie.match(new RegExp("(^| )"+name+"=([^;]*)(;|$)"));
if(arr != null) return unescape(arr[2]); return null;
}
或
指定过期时间:var myDate = new Date();
myDate.setFullYear(2010, 7, 10);
$.cookie("singleKey", "", "singleKey-value", { expires: myDate, secure: false }) 1天后过期:
var time = Date();$.cookie("singleKey", "", "singleKey-value", { expires: 1, path: "/", secure: false })
{
var Days = 60; //此 cookie 将被保存 60 天
var exp = new Date();
exp.setTime(exp.getTime() + Days * 86400000);
document.cookie = name + "="+ escape(value) +";expires="+ exp.toGMTString();
}
function SetCookie(name,value)//两个参数,一个是cookie的名子,一个是值
{
var Days = 30; //此 cookie 将被保存 30 天
var exp = new Date(); //new Date("December 31, 9998");
exp.setTime(exp.getTime() + Days*24*60*60*1000);
document.cookie = name + "="+ escape (value) + ";expires=" + exp.toGMTString();
}
function getCookie(name)//读取cookies函数
{
var arr = document.cookie.match(new RegExp("(^| )"+name+"=([^;]*)(;|$)"));
if(arr != null) return unescape(arr[2]); return null;}
function delCookie(name)//删除cookie
{
var exp = new Date();
exp.setTime(exp.getTime() - 1);
var cval=getCookie(name);
if(cval!=null) document.cookie= name + "="+cval+";expires="+exp.toGMTString();
}