[转载]jquery cookie的用法

原文地址:http://www.cnblogs.com/qiantuwuliang/archive/2009/07/19/1526663.html

jQuery cookie是个很好的cookie插件，大概的使用方法如下 example $.cookie(’name’, ‘value’); 设置cookie的值，把name变量的值设为value example $.cookie(’name’, ‘value’, {expires: 7, path: ‘/’, domain: ‘jquery.com’, secure: true}); 新建一个cookie 包括有效期 路径 域名等 example $.cookie(’name’, ‘value’); 新建cookie example $.cookie(’name’, null); 删除一个cookie

var account= $.cookie('name'); 取一个cookie(name)值给myvar

代码如下

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!中对cookie的操作方法 如下,发现少了个遍历用;分割的数组的处理

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' : ''); }