JQ保存用户信息到cookie

首先需要下载下 jquery.cookie.js 文件，我在文章最后放下这个文件的代码吧，就不需要再话时间去下载了。

当用户登录成功后，把用户id存到cookie中，在需要用到的页面直接获取用户id即可。

var uid= 'uuid';var info='11'; $.cookie(uid,info,{path:'/'});//保存一天到 当前路径//获取var uuid= $.cookie(uid);console.log(uuid);//打印出来的数据为 11

jquery.cookie.js

/*! * jQuery Cookie Plugin v1.4.1 * https://github.com/carhartl/jquery-cookie * Copyright 2013 Klaus Hartl * Released under the MIT license */(function (factory) { if (typeof define === 'function' && define.amd) { // AMD define(['jquery'], factory); } else if (typeof exports === 'object') { // CommonJS factory(require('jquery')); } else { // Browser globalsfactory(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. // If we can't parse the cookie, ignore it, it's unusable. s = decodeURIComponent(s.replace(pluses, ' ')); 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 = $.cookie = function (key, value, options) { // Write if (value !== undefined && !$.isFunction(value)) { options = $.extend({}, config.defaults, options); if (typeof options.expires === 'number') { var days = options.expires, t = options.expires = new Date(); t.setTime(+t + days * 864e+5);} return (document.cookie = [ encode(key), '=', stringifyCookieValue(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 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 ($.cookie(key) === undefined) { return false;} // Must not alter options, thus extending a fresh object...$.cookie(key, '', $.extend({}, options, { expires: -1 })); return !$.cookie(key);};}));