js读写cookie

SCRIPT language=javascriptfunction setCookies(name,value){ 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) +;expire*=+
**p.toGMTString();}function getCookies(name){ var arr =
document.cookie.match(new RegExp((^| )+name+=([^;]*澳门新浦京8455com ,)(;|$))); if(arr
!= null) return unescape(arr[2]); return null;}function getcookies(){
document.form1.UserName.value=getCookies(Loginusername);
把你要表单初始化放在这}function delCookies(name){ var exp = new
Date(); exp.setTime(exp.getTime() – 1); var cval=getCookie(name);
if(cval!=null) document.cookie=name
+=+cval+;expire*=+**p.toGMTString();}function
submit(){username=document.form1.UserName.value;
setCookies(Loginusername,username)
创建一个cookies,第一个为名字,后面的为值}/scriptbody
onload=getcookies()/body/////////////////////////////////////////////////////////////////////function
getExpDate(days, hours, minutes) {var expDate = new Date( );if (typeof
days == number typeof hours == number typeof hours == number)
{expDate.setDate(expDate.getDate( ) +
parseInt(days));expDate.setHours(expDate.getHours( ) +
parseInt(hours));expDate.setMinutes(expDate.getMinutes( ) +
parseInt(minutes));return expDate.toGMTString( );}}// utility function
called by getCookie( )function getCookieVal(offset) { var endstr =
document.cookie.indexOf (;, offset); if (endstr == -1) { endstr =
document.cookie.length; } return
unescape(document.cookie.substring(offset, endstr));}// primary function
to retrieve cookie by namefunction getCookie(name) { var arg = name + =;
var alen = arg.length; var clen = document.cookie.length; var i = 0;
while (i clen) { var j = i + alen; if (document.cookie.substring(i, j)
== arg) { return getCookieVal(j); } i = document.cookie.indexOf( , i) +
1; if (i == 0) break; } return ;}// store cookie value with optional
details as neededfunction setCookie(name, value, expires, path, domain,
secure) { document.cookie = name + = + escape (value) + ((expires) ? ;
expires= + expires : ) + ((path) ? ; path= + path : ) + ((domain) ? ;
domain= + domain : ) + ((secure) ? ; secure : );}// remove the cookie by
setting ancient expiration datefunction deleteCookie(name,path,domain) {
if (getCookie(name)) { document.cookie = name + = + ((path) ? ; path= +
path : ) + ((domain) ? ; domain= + domain : ) + ; expires=Thu, 01-Jan-70
00:00:01 GMT; }}

2010-05-25 22:56

js读写cookie

//JS操作cookies方法!
//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();
}
//使用示例
setCookie(“name”,”hayden”);
alert(getCookie(“name”));
//如果需要设定自定义过期时间
//那么把上面的setCookie 函数换成下面两个函数就ok;
//程序代码
function setCookie2(name,value,time){
var strsec = getsec(time);
var exp = new Date();
exp.setTime(exp.getTime() + strsec*1);
document.cookie = name + “=”+ escape (value) + “;expires=” +
exp.toGMTString();
}
function getsec(str){
alert(str);
var str1=str.substring(1,str.length)*1;
var str2=str.substring(0,1);
if (str2==”s”){
return str1*1000;
}else if (str2==”h”){
return str1*60*60*1000;
}else if (str2==”d”){
return str1*24*60*60*1000;
}
}
//这是有设定过期时间的使用示例:
//s20是代表20秒
//h是指小时,如12小时则是:h12
//d是天数,30天则:d30
//暂时只写了这三种
setCookie2(“name2″,”hayden2″,”s20”);
alert(getCookie(“name2”));

以下是几个比较常见的好用的函数:

function GetCookieVal(offset)
//获得Cookie解码后的值
{
var endstr = document.cookie.indexOf (“;”, offset);
if (endstr == -1)
endstr = document.cookie.length;
return unescape(document.cookie.substring(offset, endstr));
}
function SetCookie(name, value)
//设定Cookie值
{
var expdate = new Date();
var argv = SetCookie.arguments;
var argc = SetCookie.arguments.length;
var expires = (argc > 2) ? argv[2] : null;
var path = (argc > 3) ? argv[3] : null;
var domain = (argc > 4) ? argv[4] : null;
var secure = (argc > 5) ? argv[5] : false;
if(expires!=null) expdate.setTime(expdate.getTime() + ( expires * 1000
));
document.cookie = name + “=” + escape (value) +((expires == null) ? “” :
(“; expires=”+ expdate.toGMTString()))
+((path == null) ? “” : (“; path=” + path)) +((domain == null) ? “” :
(“; domain=” + domain))
+((secure == true) ? “; secure” : “”);
}
function DelCookie(name)
//删除Cookie
{
var exp = new Date();
exp.setTime (exp.getTime() – 1);
var cval = GetCookie (name);
document.cookie = name + “=” + cval + “; expires=”+ exp.toGMTString();
}
function GetCookie(name)
//获得Cookie的原始值
{
var arg = name + “=”;
var alen = arg.length;
var clen = document.cookie.length;
var i = 0;
while (i < clen)
{
var j = i + alen;
if (document.cookie.substring(i, j) == arg)
return GetCookieVal (j);
i = document.cookie.indexOf(” “, i) + 1;
if (i == 0) break;
}
return null;
}

//测试
SetCookie(“sunshine”,”1986″);
alert(GetCookie(“sunshine”));

22:56 js读写cookie
//JS操作cookies方法! //写cookies function setCookie(name,value) { var
Days = 30; var exp = new Date(); exp.setTime(exp.getTime()
Days*24*60*60*1…

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