jQuery读写操作cookie的代码示范

jQuery读写操作cookie的代码演示，可以对cookie进行读写操作，可以设置域名和过期时间

插件代码

/*!
 * jQuery Cookie Plugin v1.3
 * https://github.com/carhartl/jquery-cookie
 *
 * Copyright 2011, Klaus Hartl
 * Dual licensed under the MIT or GPL Version 2 licenses.
 * http://www.opensource.org/licenses/mit-license.php
 * http://www.opensource.org/licenses/GPL-2.0
 */
(function ($, document, undefined) {
	var pluses = /\+/g;
	function raw(s) {
		return s;
	}
	function decoded(s) {
		return decodeURIComponent(s.replace(pluses, ' '));
	}
	var config = $.cookie = function (key, value, options) {
		// write
		if (value !== undefined) {
			options = $.extend({}, config.defaults, options);
			if (value === null) {
				options.expires = -1;
			}
			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 = [
				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('; ');
		for (var i = 0, l = cookies.length; i < l; i++) {
			var parts = cookies[i].split('=');
			if (decode(parts.shift()) === key) {
				var cookie = decode(parts.join('='));
				return config.json ? JSON.parse(cookie) : cookie;
			}
		}
		return null;
	};
	config.defaults = {};
	$.removeCookie = function (key, options) {
		if ($.cookie(key) !== null) {
			$.cookie(key, null, options);
			return true;
		}
		return false;
	};
})(jQuery, document);

使用方法：

提供方便方法操作cookie&nbsp:&nbsp

$.cookie('the_cookie'); // 获得cookie
$.cookie('the_cookie', 'the_value'); // 设置cookie
$.cookie('the_cookie', 'the_value', { expires: 7 }); //设置带时间的cookie  7天
$.cookie('the_cookie', '', { expires: -1 }); // 删除
$.cookie('the_cookie', null); // 删除 cookie
//设置cookie的名值对，有效期，路径，域，安全
$.cookie(’name’, ‘value’, {expires: 7, path: ‘/’, domain: ‘jquery.com’, secure: true});
 
如果在action中出现乱码，需URLDecoder.decode(cookievalue,"utf-8")