JavaScript js cookie的添加、删除、修改和查询

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支持中文添加不会乱码，可以用unescape、escape或是encodeURI、decodeURI进行编码转换就可以解决乱码。

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <title>JS操作cookie.html</title> <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"> <meta http-equiv="description" content="this is my page"> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <script type="text/javascript" src="JSCookies.js"></script> ` <script type="text/javascript"> //用法： //一、设置cookie var cookie = new Cookies(); function set() { //普通设置 cookie.set("key1", "哈哈3"); //过期时间为一年 var d = new Date(); d.setFullYear(d.getFullYear() + 1); cookie.set("key2", "val2", d); //设置域及路径，带过期时间 cookie.set("key3", "val3", d, "casett", "/"); //设置带子键的cookie,子键分别是k1,k2,k3 cookie.set("key4", "k1=哈哈是&k2=2&k3=3"); }; //二、读取cookie //简单获取 function get() { alert(cookie.get("key1")); alert(cookie.get("key2")); alert(cookie.get("key3")); alert(cookie.get("key4")); //获取key4的子键k1值 alert(cookie.getChild("key4","k1")); alert(cookie.getChild("key4","k2")); } //三、删除 function remove() { cookie.remove("key1"); cookie.remove("key2"); cookie.remove("key3"); cookie.remove("key4"); } </script> </head> <body> <input type="button" value="set" onclick="set()"/> <input type="button" value="get" onclick="get()"/> <input type="button" value="clear" onclick="remove()"/> </body> </html>

JSCookies js

String.prototype.Trim = function() { return this.replace(/^/s+/g, "").replace(//s+$/g, ""); } function Cookies() { this.get = function(key) { var cookie = document.cookie; var cookieArray = cookie.split(';'); var val = ""; for (var i = 0; i < cookieArray.length; i++) { if (cookieArray[i].Trim().substr(0, key.length) == key) { val = cookieArray[i].Trim().substr(key.length + 1); break; } } return unescape(val); }; this.getChild = function(key, childKey) { var child = this.get(key); var childs = child.split('&'); var val = ""; for (var i = 0; i < childs.length; i++) { if (childs[i].Trim().substr(0, childKey.length) == childKey) { val = childs[i].Trim().substr(childKey.length + 1); break; } } return val; }; this.set = function(key, value) { var cookie = ""; if (!!key && !!value) cookie += key + "=" + escape(value) + ";"; if (!!arguments[2]) cookie += "expires=" + arguments[2].toGMTString() + ";"; if (!!arguments[3]) cookie += "domain=" + arguments[3] + ";"; if (!!arguments[4]) cookie += "path=" + arguments[4] + ";"; document.cookie = cookie; }; this.remove = function(key) { var date = new Date(); date.setFullYear(date.getFullYear() - 1); var cookie = " " + key + "=;expires=" + date + ";" document.cookie = cookie; } }

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