js中的cookie操作

一、js cookie   使用时把此段代码引入页面

(function (factory) {
    if (typeof define === 'function' && define.amd) {
        define(factory);
    } else if (typeof exports === 'object') {
        module.exports = factory();
    } else {
        var _OldCookies = window.Cookies;
        var api = window.Cookies = factory(window.jQuery);
        api.noConflict = function () {
            window.Cookies = _OldCookies;
            return api;
        };
    }
}(function () {
    function extend () {
        var i = 0;
        var result = {};
        for (; i < arguments.length; i++) {
            var attributes = arguments[ i ];
            for (var key in attributes) {
                result[key] = attributes[key];
            }
        }
        return result;
    }

    function init (converter) {
        function api (key, value, attributes) {
            var result;

            // Write

            if (arguments.length > 1) {
                attributes = extend({
                    path: '/'
                }, api.defaults, attributes);

                if (typeof attributes.expires === 'number') {
                    var expires = new Date();
                    expires.setMilliseconds(expires.getMilliseconds() + attributes.expires * 864e+5);
                    attributes.expires = expires;
                }

                try {
                    result = JSON.stringify(value);
                    if (/^[\{\[]/.test(result)) {
                        value = result;
                    }
                } catch (e) {}

                value = encodeURIComponent(String(value));
                value = value.replace(/%(23|24|26|2B|3A|3C|3E|3D|2F|3F|40|5B|5D|5E|60|7B|7D|7C)/g, decodeURIComponent);

                key = encodeURIComponent(String(key));
                key = key.replace(/%(23|24|26|2B|5E|60|7C)/g, decodeURIComponent);
                key = key.replace(/[\(\)]/g, escape);

                return (document.cookie = [
                    key, '=', value,
                    attributes.expires && '; expires=' + attributes.expires.toUTCString(), // use expires attribute, max-age is not supported by IE
                    attributes.path    && '; path=' + attributes.path,
                    attributes.domain  && '; domain=' + attributes.domain,
                    attributes.secure ? '; secure' : ''
                ].join(''));
            }

            // Read

            if (!key) {
                result = {};
            }

            // 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 "get()"
            var cookies = document.cookie ? document.cookie.split('; ') : [];
            var rdecode = /(%[0-9A-Z]{2})+/g;
            var i = 0;

            for (; i < cookies.length; i++) {
                var parts = cookies[i].split('=');
                var name = parts[0].replace(rdecode, decodeURIComponent);
                var cookie = parts.slice(1).join('=');

                if (cookie.charAt(0) === '"') {
                    cookie = cookie.slice(1, -1);
                }

                try {
                    cookie = converter && converter(cookie, name) || cookie.replace(rdecode, decodeURIComponent);

                    if (this.json) {
                        try {
                            cookie = JSON.parse(cookie);
                        } catch (e) {}
                    }

                    if (key === name) {
                        result = cookie;
                        break;
                    }

                    if (!key) {
                        result[name] = cookie;
                    }
                } catch (e) {}
            }

            return result;
        }

        api.get = api.set = api;
        api.getJSON = function () {
            return api.apply({
                json: true
            }, [].slice.call(arguments));
        };
        api.defaults = {};

        api.remove = function (key, attributes) {
            api(key, '', extend(attributes, {
                expires: -1
            }));
        };

        api.withConverter = init;

        return api;
    }

    return init();
}));

设置cookie

Cookies(name, value); || Cookies.set(name, value);  //name：所存cookie的名称；value：名称对应的值

Cookies(name1, value1); || Cookies.set(name1, value1);

Cookies(name,value, { expires: 7 }); || Cookies.set(name,value, { expires: 7 });  // 设置cookie失效时间，单位：天

Cookies(name,value, { expires: 7,path:"/路径",domain: "域名"}); || Cookies.set(name,value, { expires: 7,path:"/路径",domain: "域名"});// 设置cookie,包括有效期 路径 域名等

读取cookie

Cookies(); || Cookies.get();  //读取所有cookie,输出的是对象==>{name:value, name1:value1}

Cookies(name); || Cookies.get(name);  //读取对应名称的cookie==>value

删除cookie

Cookies(name:""); //将cookie清空

Cookie.remove(name:""); //删除cookie 对应的cookie名称也删除