jQuery操作cookie的插件,大概的使用方法如下
$.cookie(‘the_cookie’); //读取Cookie值
$.cookie(’the_cookie’, ‘the_value’); //设置cookie的值
$.cookie(’the_cookie’, ‘the_value’, {expires: 7, path: ‘/’, domain: ‘jquery.com’, secure: true});//新建一个cookie 包括有效期 路径 域名等
$.cookie(’the_cookie’, ‘the_value’); //新建cookie
$.cookie(’the_cookie’, null); //删除一个cookie
jquery.cookie.js源码
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/*! * jQuery Cookie Plugin v1.3.1 * * Copyright 2013 Klaus Hartl * Released under the MIT license */(function (factory) { if (typeof define === ‘function‘ && define.amd) { // AMD. Register as anonymous module. define([‘jquery‘], factory); } else { // Browser globals. factory(jQuery); }}(function ($) { var pluses = /\+/g; function raw(s) { return s; } function decoded(s) { return decodeURIComponent(s.replace(pluses, ‘ ‘)); } function converted(s) { if (s.indexOf(‘"‘) === 0) { // This is a quoted cookie as according to RFC2068, unescape s = s.slice(1, -1).replace(/\\"/g, ‘"‘).replace(/\\\\/g, ‘\\‘); } try { return config.json ? JSON.parse(s) : s; } catch(er) {} } var config = $.cookie = function (key, value, options) { // write if (value !== undefined) { options = $.extend({}, config.defaults, options); if (typeof options.expires === ‘number‘) { var days = options.expires, t = options.expires = new Date(); t.setDate(t.getDate() + days); } value = config.json ? JSON.stringify(value) : String(value); return (document.cookie = [ config.raw ? key : encodeURIComponent(key), ‘=‘, config.raw ? value : encodeURIComponent(value), options.expires ? ‘; expires=‘ + options.expires.toUTCString() : ‘‘, // use expires attribute, max-age is not supported by IE options.path ? ‘; path=‘ + options.path : ‘‘, options.domain ? ‘; domain=‘ + options.domain : ‘‘, options.secure ? ‘; secure‘ : ‘‘ ].join(‘‘)); } // read var decode = config.raw ? raw : decoded; var cookies = document.cookie.split(‘; ‘); var result = key ? undefined : {}; for (var i = 0, l = cookies.length; i < l; i++) { var parts = cookies[i].split(‘=‘); var name = decode(parts.shift()); var cookie = decode(parts.join(‘=‘)); if (key && key === name) { result = converted(cookie); break; } if (!key) { result[name] = converted(cookie); } } return result; }; config.defaults = {}; $.removeCookie = function (key, options) { if ($.cookie(key) !== undefined) { $.cookie(key, ‘‘, $.extend(options, { expires: -1 })); return true; } return false; };})); |