JQ设置cookie、读取cookie、删除cookie(2)
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之前有介绍过一片也是关于js的原生cookie的使用。
后来在工作和使用中发现了另外一个将常用的cookie的jq插件,下列本人将对其的使用方法进行简单的描述说明~
PS:
1.该jqueryCookie因是jq版本,切记使用时请先引入jq文件。
2.cookie的使用需要在服务器环境下测试方可查看到效果。
<script type="text/javascript" src="js/jquery-1.7.1.min.js"></script><script type="text/javascript" src="js/jquery.cookie.js"></script>
html:
<!doctype html><html lang="en"> <head> <meta charset="UTF-8"> <meta name="Generator" content="EditPlus®"> <meta name="Author" content=""> <meta name="Keywords" content=""> <meta name="Description" content=""><script type="text/javascript" src="js/jquery-1.7.1.min.js"></script><script type="text/javascript" src="js/jquery.cookie.js"></script> <title>Document</title> </head> <body> <button id="setCookie" >设置cookie</button> <button id="lookCookie" >获取cookie值</button> <button id="clearCookie" >清除cookie</button> <div ><span>cookie的值:</span><span id="cookieValue"></span></div> </body></html>
js:
<script> //设置cookie的值 $("#setCookie").click(function(){ $.cookie('the_cookie', 'the_value', { expires: 7 }); $("#cookieValue").text($.cookie('the_cookie')); }); //查看cookie的值 $("#lookCookie").click(function(){ $("#cookieValue").text($.cookie('the_cookie')); }); //清除cookie的值 $("#clearCookie").click(function(){ $.cookie('the_cookie',null); }); </script>
效果如下:
JQ Cookie 插件代码:
/*! * jQuery Cookie Plugin v1.4.0 * https://github.com/carhartl/jquery-cookie * * Copyright 2013 Klaus Hartl * Released under the MIT license */(function (factory) {if (typeof define === 'function' && define.amd) {// AMD. Register as anonymous module.define(['jquery'], factory);} else {// Browser globals.factory(jQuery);}}(function ($) {var pluses = /\+/g;function encode(s) {return config.raw ? s : encodeURIComponent(s);}function decode(s) {return config.raw ? s : decodeURIComponent(s);}function stringifyCookieValue(value) {return encode(config.json ? JSON.stringify(value) : String(value));}function parseCookieValue(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 {// Replace server-side written pluses with spaces.// If we can't decode the cookie, ignore it, it's unusable.s = decodeURIComponent(s.replace(pluses, ' '));} catch(e) {return;}try {// If we can't parse the cookie, ignore it, it's unusable.return config.json ? JSON.parse(s) : s;} catch(e) {}}function read(s, converter) {var value = config.raw ? s : parseCookieValue(s);return $.isFunction(converter) ? converter(value) : value;}var config = $.cookie = function (key, value, options) {// Writeif (value !== undefined && !$.isFunction(value)) {options = $.extend({}, config.defaults, options);if (typeof options.expires === 'number') {var days = options.expires, t = options.expires = new Date();t.setDate(t.getDate() + days);}return (document.cookie = [encode(key), '=', stringifyCookieValue(value),options.expires ? '; expires=' + options.expires.toUTCString() : '', // use expires attribute, max-age is not supported by IEoptions.path ? '; path=' + options.path : '',options.domain ? '; domain=' + options.domain : '',options.secure ? '; secure' : ''].join(''));}// Readvar result = key ? undefined : {};// To prevent the for loop in the first place assign an empty array// in case there are no cookies at all. Also prevents odd result when// calling $.cookie().var cookies = document.cookie ? document.cookie.split('; ') : [];for (var i = 0, l = cookies.length; i < l; i++) {var parts = cookies[i].split('=');var name = decode(parts.shift());var cookie = parts.join('=');if (key && key === name) {// If second argument (value) is a function it's a converter...result = read(cookie, value);break;}// Prevent storing a cookie that we couldn't decode.if (!key && (cookie = read(cookie)) !== undefined) {result[name] = cookie;}}return result;};config.defaults = {};$.removeCookie = function (key, options) {if ($.cookie(key) !== undefined) {// Must not alter options, thus extending a fresh object...$.cookie(key, '', $.extend({}, options, { expires: -1 }));return true;}return false;};}));
原生写法:
http://blog.csdn.net/qq_35515563/article/details/59503415
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