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基于jquery的cookie的用法

更新時(shí)間：2011年01月10日 22:10:55 作者：

jQuery.cookie.js是個(gè)很好的cookie插件，大概的使用方法如下，需要的朋友可以參考下。

example $.cookie('name', ‘value');
設(shè)置cookie的值，把name變量的值設(shè)為value
example $.cookie('name', ‘value', {expires: 7, path: ‘/', domain: ‘jquery.com', secure: true});
新建一個(gè)cookie 包括有效期路徑域名等
example $.cookie('name', ‘value');
新建cookie
example $.cookie('name', null);
刪除一個(gè)cookie

var account= $.cookie('name');
取一個(gè)cookie(name)值給myvar

代碼如下

復(fù)制代碼代碼如下:

 
jQuery.cookie = 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; 
} 
}; 

然后看了下Discuz!中對(duì)cookie的操作方法
如下,發(fā)現(xiàn)少了個(gè)遍歷用;分割的數(shù)組的處理

復(fù)制代碼代碼如下:

 
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' : ''); 
} 