时间: 2010-09-04 / 分类: WEB后端编程 - 开发与实践 / 浏览次数: / 0 个评论 发表评论
jQuery的cookie操作
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用jQuery操作cookie的代码如下:

. = function(name, value, options) {
if (typeof value != ‘undefined’) { // name and value given, set cookie
options = options || {};
if (value === null) {
value = ”;
options.expires = -1;
}
var expires = ”;
if (options.expires && (typeof options.expires == ‘number’ || options.expires.toUTCString)) {
var date;
if (typeof options.expires == ‘number’) {
date = new Date();
date.setTime(date.getTime() + (options.expires * 24 * 60 * 60 * 1000));
} else {
date = options.expires;
}
expires = ‘; expires=’ + date.toUTCString(); // use expires attribute, max-age is not supported by IE
}
var path = options.path ? ‘; path=’ + options.path : ”;
var domain = options.domain ? ‘; domain=’ + options.domain : ”;
var secure = options.secure ? ‘; secure’ : ”;
document.cookie = [name, ‘=’, encodeURIComponent(value), expires, path, domain, secure].join(”);
} else { // only name given, get cookie
var cookieValue = null;
if (document.cookie && document.cookie != ”) {
var cookies = document.cookie.split(‘;’);
for (var i = 0; i < cookies.length; i++) { var cookie = jQuery.trim(cookies[i]); // Does this cookie string begin with the name we want? if (cookie.substring(0, name.length + 1) == (name + ‘=’)) { cookieValue = decodeURIComponent(cookie.substring(name.length + 1)); break; } } } return cookieValue; } }; function getcookie(name) { var cookie_start = document.cookie.indexOf(name); var cookie_end = document.cookie.indexOf(“;”, cookie_start); return cookie_start == -1 ? ” : unescape(document.cookie.substring(cookie_start + name.length + 1, (cookie_end > cookie_start ? cookie_end : document.cookie.length)));
}

function setcookie(cookieName, cookieValue, seconds, path, domain, secure) {
var expires = new Date();
expires.setTime(expires.getTime() + seconds);
document.cookie = escape(cookieName) + ‘=’ + escape(cookieValue)
+ (expires ? ‘; expires=’ + expires.toGMTString() : ”)
+ (path ? ‘; path=’ + path : ‘/’)
+ (domain ? ‘; domain=’ + domain : ”)
+ (secure ? ‘; secure’ : ”);
}

 

 

使用方法:

提供方便方法操作cookie :
$.cookie(‘the_cookie’); // 获得cookie
$.cookie(‘the_cookie’, ‘the_value’); // 设置cookie
$.cookie(‘the_cookie’, ‘the_value’, { expires: 7 }); //设置带时间的cookie  7天
$.cookie(‘the_cookie’, ”, { expires: -1 }); // 删除
$.cookie(‘the_cookie’, null); // 删除 cookie

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