jQuery操作Cookie

操作:

$.cookie(‘the_cookie’); // 读取 cookie
$.cookie(‘the_cookie’, 'the_value’); // 存储 cookie
$.cookie(‘the_cookie’, 'the_value’, { expires: 7 }); // 存储一个带7天期限的 cookie
$.cookie(‘the_cookie’, '', { expires: -1 }); // 删除 cookie
 1 jQuery.cookie = function(name, value, options) {
 2     if (typeof value != 'undefined') { // name and value given, set cookie
 3         options = options || {};
 4         if (value === null) {
 5             value = '';
 6             options.expires = -1;
 7         }
 8         var expires = '';
 9         if (options.expires && (typeof options.expires == 'number' || options.expires.toUTCString)) {
10             var date;
11             if (typeof options.expires == 'number') {
12                 date = new Date();
13                 date.setTime(date.getTime() + (options.expires * 24 * 60 * 60 * 1000));
14             } else {
15                 date = options.expires;
16             }
17             expires = '; expires=' + date.toUTCString(); // use expires attribute, max-age is not supported by IE
18         }
19         var path = options.path ? '; path=' + options.path : '';
20         var domain = options.domain ? '; domain=' + options.domain : '';
21         var secure = options.secure ? '; secure' : '';
22         document.cookie = [name, '=', encodeURIComponent(value), expires, path, domain, secure].join('');
23     } else { // only name given, get cookie
24         var cookieValue = null;
25         if (document.cookie && document.cookie != '') {
26             var cookies = document.cookie.split(';');
27             for (var i = 0; i < cookies.length; i++) {
28                 var cookie = jQuery.trim(cookies[i]);
29                 // Does this cookie string begin with the name we want?
30                 if (cookie.substring(0, name.length + 1) == (name + '=')) {
31                     cookieValue = decodeURIComponent(cookie.substring(name.length + 1));
32                     break;
33                 }
34             }
35         }
36         return cookieValue;
37     }
38 };
39 
40  
posted on 2012-11-28 09:04  浩瀚孤鸿  阅读(194)  评论(0编辑  收藏  举报