代码为设置Cookie和获取Cookie方法的例子

复制代码 代码如下:

function SetUserCookie() {

//取用户名

var usr = document.getElementById('user').value;

var expdate = new Date();

//当前时间加上两周的时间

expdate.setTime(expdate.getTime() + 14 * (24 * 60 * 60 * 1000));

//将最后一个用户信息写入到Cookie

SetCookie("49BA-C005-7D-OADOC-5B-USER",usr,expdate);

}

function GetUserCookie() {

var id = "49BA-C005-7D-OADOC-5B-USER";//GUID标识符

var usr = GetCookie(id);

if (usr != null) {

document.getElementById('userid').value = usr;

}

}

//写入到Cookie

function SetCookie(name, value, expires) {

var argv = SetCookie.arguments;

//本例中length = 3

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;

document.cookie = name + "=" + escape(value) + ((expires == null) ? "" : ("; expires=" + expires.toGMTString())) + ((path == null) ? "" : ("; path=" + path)) + ((domain == null) ? "" : ("; domain=" + domain)) + ((secure == true) ? "; secure" : "");

}

//取Cookie的值

function GetCookie(name) {

var arg = name + "=";

var alen = arg.length;

var clen = document.cookie.length;

var i = 0;

while (i < clen) {

var j = i + alen;

//alert(j);

if (document.cookie.substring(i, j) == arg) return getCookieVal(j);

i = document.cookie.indexOf(" ", i) + 1;

if (i == 0) break;

}

return null;

}

function getCookieVal(offset) {

var endstr = document.cookie.indexOf(";", offset);

if (endstr == -1) endstr = document.cookie.length;

return unescape(document.cookie.substring(offset, endstr));

}