js-cookie js删除cookie失败 js清除全部cookie js清除所有cookie js设置cookie Js 清除 cookie js-cookie删除cookie jquery删除cookie

Js删除指定cookie

作为一个格式化过的字符串，cookie 的值有时很难被自然地处理。下面的库的目的是通过定义一个和document.cookie = "name=oeschger"; document.cookie = "favorite_food=tripe"; alert(document.cookie); // 显示：name=oeschger;favorite_food=tripe 2 (en-US)部分document.cookie = "name=oeschger"; document.cookie = "favorite_food=tripe"; alert(document.cookie); // 显示：name=oeschger;favorite_food=tripe 3对象（docCookies），简化document.cookie = "name=oeschger"; document.cookie = "favorite_food=tripe"; alert(document.cookie); // 显示：name=oeschger;favorite_food=tripe 4 的获取方法。它提供完全的 Unicode 支持。

/*\ |*| |*| :: cookies.js :: |*| |*| A complete cookies reader/writer framework with full unicode support. |*| |*| //developer.mozilla.org/en-US/docs/DOM/document.cookie |*| |*| This framework is released under the GNU Public License, version 3 or later. |*| //www.gnu.org/licenses/gpl-3.0-standalone.html |*| |*| Syntaxes: |*| |*| * docCookies.setItem(name, value[, end[, path[, domain[, secure]]]]) |*| * docCookies.getItem(name) |*| * docCookies.removeItem(name[, path], domain) |*| * docCookies.hasItem(name) |*| * docCookies.keys() |*| \*/ var docCookies = { getItem: function (sKey) { return decodeURIComponent(document.cookie.replace(new RegExp("(?:(?:^|.*;)\\s*" + encodeURIComponent(sKey).replace(/[-.+*]/g, "\\$&") + "\\s*\\=\\s*([^;]*).*$)|^.*$"), "$1")) || null; }, setItem: function (sKey, sValue, vEnd, sPath, sDomain, bSecure) { if (!sKey || /^(?:expires|max\-age|path|domain|secure)$/i.test(sKey)) { return false; } var sExpires = ""; if (vEnd) { switch (vEnd.constructor) { case Number: sExpires = vEnd === Infinity ? "; expires=Fri, 31 Dec 9999 23:59:59 GMT" : "; max-age=" + vEnd; break; case String: sExpires = "; expires=" + vEnd; break; case Date: sExpires = "; expires=" + vEnd.toUTCString(); break; } } document.cookie = encodeURIComponent(sKey) + "=" + encodeURIComponent(sValue) + sExpires + (sDomain ? "; domain=" + sDomain : "") + (sPath ? "; path=" + sPath : "") + (bSecure ? "; secure" : ""); return true; }, removeItem: function (sKey, sPath, sDomain) { if (!sKey || !this.hasItem(sKey)) { return false; } document.cookie = encodeURIComponent(sKey) + "=; expires=Thu, 01 Jan 1970 00:00:00 GMT" + ( sDomain ? "; domain=" + sDomain : "") + ( sPath ? "; path=" + sPath : ""); return true; }, hasItem: function (sKey) { return (new RegExp("(?:^|;\\s*)" + encodeURIComponent(sKey).replace(/[-.+*]/g, "\\$&") + "\\s*\\=")).test(document.cookie); }, keys: /* optional method: you can safely remove it! */ function () { var aKeys = document.cookie.replace(/((?:^|\s*;)[^\=]+)(?=;|$)|^\s*|\s*(?:\=[^;]*)?(?:\1|$)/g, "").split(/\s*(?:\=[^;]*)?;\s*/); for (var nIdx = 0; nIdx < aKeys.length; nIdx++) { aKeys[nIdx] = decodeURIComponent(aKeys[nIdx]); } return aKeys; } };

备注： 对于永久 cookie 我们用了document.cookie = "name=oeschger"; document.cookie = "favorite_food=tripe"; alert(document.cookie); // 显示：name=oeschger;favorite_food=tripe 5作为过期日。如果你不想使用这个日期，可使用*世界末日*document.cookie = "name=oeschger"; document.cookie = "favorite_food=tripe"; alert(document.cookie); // 显示：name=oeschger;favorite_food=tripe 6它是 32 位带符号整数能表示从 1 January 1970 00:00:00 UTC 开始的最大秒长 (即document.cookie = "name=oeschger"; document.cookie = "favorite_food=tripe"; alert(document.cookie); // 显示：name=oeschger;favorite_food=tripe 7, 是 document.cookie = "name=oeschger"; document.cookie = "favorite_food=tripe"; alert(document.cookie); // 显示：name=oeschger;favorite_food=tripe 8).

写入 cookie

语法docCookies.setItem(name, value[, end[, path[, domain[, secure]]]]) 描述

创建或覆盖一个 cookie

参数document.cookie = "name=oeschger"; document.cookie = "favorite_food=tripe"; alert(document.cookie); // 显示：name=oeschger;favorite_food=tripe 9 (必要)

要创建或覆盖的 cookie 的名字 (document.cookie = "test1=Hello"; document.cookie = "test2=World"; var myCookie = document.cookie.replace(/(?:(?:^|.*;\s*)test2\s*\=\s*([^;]*).*$)|^.*$/, "$1"); alert(myCookie); // 显示：World 0)。

document.cookie = "test1=Hello"; document.cookie = "test2=World"; var myCookie = document.cookie.replace(/(?:(?:^|.*;\s*)test2\s*\=\s*([^;]*).*$)|^.*$/, "$1"); alert(myCookie); // 显示：World 1 (必要)

cookie 的值 (document.cookie = "test1=Hello"; document.cookie = "test2=World"; var myCookie = document.cookie.replace(/(?:(?:^|.*;\s*)test2\s*\=\s*([^;]*).*$)|^.*$/, "$1"); alert(myCookie); // 显示：World 0)。

document.cookie = "test1=Hello"; document.cookie = "test2=World"; var myCookie = document.cookie.replace(/(?:(?:^|.*;\s*)test2\s*\=\s*([^;]*).*$)|^.*$/, "$1"); alert(myCookie); // 显示：World 3 (可选)

document.cookie = "test1=Hello"; document.cookie = "test2=World"; var myCookie = document.cookie.replace(/(?:(?:^|.*;\s*)test2\s*\=\s*([^;]*).*$)|^.*$/, "$1"); alert(myCookie); // 显示：World 4的秒数 (一年为 31536e3，永不过期的 cookie 为document.cookie = "test1=Hello"; document.cookie = "test2=World"; var myCookie = document.cookie.replace(/(?:(?:^|.*;\s*)test2\s*\=\s*([^;]*).*$)|^.*$/, "$1"); alert(myCookie); // 显示：World 5 (en-US)) ，或者过期时间的 document.cookie = "test1=Hello"; document.cookie = "test2=World"; var myCookie = document.cookie.replace(/(?:(?:^|.*;\s*)test2\s*\=\s*([^;]*).*$)|^.*$/, "$1"); alert(myCookie); // 显示：World 6 格式或document.cookie = "test1=Hello"; document.cookie = "test2=World"; var myCookie = document.cookie.replace(/(?:(?:^|.*;\s*)test2\s*\=\s*([^;]*).*$)|^.*$/, "$1"); alert(myCookie); // 显示：World 7; 如果没有定义则会在会话结束时过期 (document.cookie = "test1=Hello"; document.cookie = "test2=World"; var myCookie = document.cookie.replace(/(?:(?:^|.*;\s*)test2\s*\=\s*([^;]*).*$)|^.*$/, "$1"); alert(myCookie); // 显示：World 8 – 有限的或 document.cookie = "test1=Hello"; document.cookie = "test2=World"; var myCookie = document.cookie.replace(/(?:(?:^|.*;\s*)test2\s*\=\s*([^;]*).*$)|^.*$/, "$1"); alert(myCookie); // 显示：World 5 (en-US) – document.cookie = "test1=Hello"; document.cookie = "test2=World"; var myCookie = document.cookie.replace(/(?:(?:^|.*;\s*)test2\s*\=\s*([^;]*).*$)|^.*$/, "$1"); alert(myCookie); // 显示：World 0, if (document.cookie.replace(/(?:(?:^|.*;\s*)someCookieName\s*\=\s*([^;]*).*$)|^.*$/, "$1") !== "true") { alert("Do something here!"); document.cookie = "someCookieName=true; expires=Fri, 31 Dec 9999 23:59:59 GMT; path=/"; } } 1 object or if (document.cookie.replace(/(?:(?:^|.*;\s*)someCookieName\s*\=\s*([^;]*).*$)|^.*$/, "$1") !== "true") { alert("Do something here!"); document.cookie = "someCookieName=true; expires=Fri, 31 Dec 9999 23:59:59 GMT; path=/"; } } 2)。

if (document.cookie.replace(/(?:(?:^|.*;\s*)someCookieName\s*\=\s*([^;]*).*$)|^.*$/, "$1") !== "true") { alert("Do something here!"); document.cookie = "someCookieName=true; expires=Fri, 31 Dec 9999 23:59:59 GMT; path=/"; } } 3 (可选)

例如 '/', '/mydir'。如果没有定义，默认为当前文档位置的路径。(document.cookie = "test1=Hello"; document.cookie = "test2=World"; var myCookie = document.cookie.replace(/(?:(?:^|.*;\s*)test2\s*\=\s*([^;]*).*$)|^.*$/, "$1"); alert(myCookie); // 显示：World 0 or if (document.cookie.replace(/(?:(?:^|.*;\s*)someCookieName\s*\=\s*([^;]*).*$)|^.*$/, "$1") !== "true") { alert("Do something here!"); document.cookie = "someCookieName=true; expires=Fri, 31 Dec 9999 23:59:59 GMT; path=/"; } } 2)。路径必须为绝对路径（参见 RFC 2965）。关于如何在这个参数使用相对路径的方法请参见这段。

if (document.cookie.replace(/(?:(?:^|.*;\s*)someCookieName\s*\=\s*([^;]*).*$)|^.*$/, "$1") !== "true") { alert("Do something here!"); document.cookie = "someCookieName=true; expires=Fri, 31 Dec 9999 23:59:59 GMT; path=/"; } } 6 (可选)

例如 'example.com'，'.example.com' (包括所有子域名), 'subdomain.example.com'。如果没有定义，默认为当前文档位置的路径的域名部分 (document.cookie = "test1=Hello"; document.cookie = "test2=World"; var myCookie = document.cookie.replace(/(?:(?:^|.*;\s*)test2\s*\=\s*([^;]*).*$)|^.*$/, "$1"); alert(myCookie); // 显示：World 0 或 if (document.cookie.replace(/(?:(?:^|.*;\s*)someCookieName\s*\=\s*([^;]*).*$)|^.*$/, "$1") !== "true") { alert("Do something here!"); document.cookie = "someCookieName=true; expires=Fri, 31 Dec 9999 23:59:59 GMT; path=/"; } } 2)。

if (document.cookie.replace(/(?:(?:^|.*;\s*)someCookieName\s*\=\s*([^;]*).*$)|^.*$/, "$1") !== "true") { alert("Do something here!"); document.cookie = "someCookieName=true; expires=Fri, 31 Dec 9999 23:59:59 GMT; path=/"; } } 9 (可选)

cookie 只会被 https 传输 (/*\ |*| |*| :: cookies.js :: |*| |*| A complete cookies reader/writer framework with full unicode support. |*| |*| //developer.mozilla.org/en-US/docs/DOM/document.cookie |*| |*| This framework is released under the GNU Public License, version 3 or later. |*| //www.gnu.org/licenses/gpl-3.0-standalone.html |*| |*| Syntaxes: |*| |*| * docCookies.setItem(name, value[, end[, path[, domain[, secure]]]]) |*| * docCookies.getItem(name) |*| * docCookies.removeItem(name[, path], domain) |*| * docCookies.hasItem(name) |*| * docCookies.keys() |*| \*/ var docCookies = { getItem: function (sKey) { return decodeURIComponent(document.cookie.replace(new RegExp("(?:(?:^|.*;)\\s*" + encodeURIComponent(sKey).replace(/[-.+*]/g, "\\$&") + "\\s*\\=\\s*([^;]*).*$)|^.*$"), "$1")) || null; }, setItem: function (sKey, sValue, vEnd, sPath, sDomain, bSecure) { if (!sKey || /^(?:expires|max\-age|path|domain|secure)$/i.test(sKey)) { return false; } var sExpires = ""; if (vEnd) { switch (vEnd.constructor) { case Number: sExpires = vEnd === Infinity ? "; expires=Fri, 31 Dec 9999 23:59:59 GMT" : "; max-age=" + vEnd; break; case String: sExpires = "; expires=" + vEnd; break; case Date: sExpires = "; expires=" + vEnd.toUTCString(); break; } } document.cookie = encodeURIComponent(sKey) + "=" + encodeURIComponent(sValue) + sExpires + (sDomain ? "; domain=" + sDomain : "") + (sPath ? "; path=" + sPath : "") + (bSecure ? "; secure" : ""); return true; }, removeItem: function (sKey, sPath, sDomain) { if (!sKey || !this.hasItem(sKey)) { return false; } document.cookie = encodeURIComponent(sKey) + "=; expires=Thu, 01 Jan 1970 00:00:00 GMT" + ( sDomain ? "; domain=" + sDomain : "") + ( sPath ? "; path=" + sPath : ""); return true; }, hasItem: function (sKey) { return (new RegExp("(?:^|;\\s*)" + encodeURIComponent(sKey).replace(/[-.+*]/g, "\\$&") + "\\s*\\=")).test(document.cookie); }, keys: /* optional method: you can safely remove it! */ function () { var aKeys = document.cookie.replace(/((?:^|\s*;)[^\=]+)(?=;|$)|^\s*|\s*(?:\=[^;]*)?(?:\1|$)/g, "").split(/\s*(?:\=[^;]*)?;\s*/); for (var nIdx = 0; nIdx < aKeys.length; nIdx++) { aKeys[nIdx] = decodeURIComponent(aKeys[nIdx]); } return aKeys; } }; 0或if (document.cookie.replace(/(?:(?:^|.*;\s*)someCookieName\s*\=\s*([^;]*).*$)|^.*$/, "$1") !== "true") { alert("Do something here!"); document.cookie = "someCookieName=true; expires=Fri, 31 Dec 9999 23:59:59 GMT; path=/"; } } 2)。

得到 cookie

语法docCookies.getItem(name) 描述

读取一个 cookie。如果 cookie 不存在返回if (document.cookie.replace(/(?:(?:^|.*;\s*)someCookieName\s*\=\s*([^;]*).*$)|^.*$/, "$1") !== "true") { alert("Do something here!"); document.cookie = "someCookieName=true; expires=Fri, 31 Dec 9999 23:59:59 GMT; path=/"; } } 2。

参数document.cookie = "name=oeschger"; document.cookie = "favorite_food=tripe"; alert(document.cookie); // 显示：name=oeschger;favorite_food=tripe 9

读取的 cookie 名 (document.cookie = "test1=Hello"; document.cookie = "test2=World"; var myCookie = document.cookie.replace(/(?:(?:^|.*;\s*)test2\s*\=\s*([^;]*).*$)|^.*$/, "$1"); alert(myCookie); // 显示：World 0).

移除 cookie

SyntaxdocCookies.removeItem(name[, path],domain) 描述

删除一个 cookie。

参数document.cookie = "name=oeschger"; document.cookie = "favorite_food=tripe"; alert(document.cookie); // 显示：name=oeschger;favorite_food=tripe 9

要移除的 cookie 名 (document.cookie = "test1=Hello"; document.cookie = "test2=World"; var myCookie = document.cookie.replace(/(?:(?:^|.*;\s*)test2\s*\=\s*([^;]*).*$)|^.*$/, "$1"); alert(myCookie); // 显示：World 0).

if (document.cookie.replace(/(?:(?:^|.*;\s*)someCookieName\s*\=\s*([^;]*).*$)|^.*$/, "$1") !== "true") { alert("Do something here!"); document.cookie = "someCookieName=true; expires=Fri, 31 Dec 9999 23:59:59 GMT; path=/"; } } 3 (可选)

例如 '/', '/mydir'。如果没有定义，默认为当前文档位置的路径。(document.cookie = "test1=Hello"; document.cookie = "test2=World"; var myCookie = document.cookie.replace(/(?:(?:^|.*;\s*)test2\s*\=\s*([^;]*).*$)|^.*$/, "$1"); alert(myCookie); // 显示：World 0 or if (document.cookie.replace(/(?:(?:^|.*;\s*)someCookieName\s*\=\s*([^;]*).*$)|^.*$/, "$1") !== "true") { alert("Do something here!"); document.cookie = "someCookieName=true; expires=Fri, 31 Dec 9999 23:59:59 GMT; path=/"; } } 2)。路径必须为绝对路径（参见 RFC 2965）。关于如何在这个参数使用相对路径的方法请参见这段。

if (document.cookie.replace(/(?:(?:^|.*;\s*)someCookieName\s*\=\s*([^;]*).*$)|^.*$/, "$1") !== "true") { alert("Do something here!"); document.cookie = "someCookieName=true; expires=Fri, 31 Dec 9999 23:59:59 GMT; path=/"; } } 6 (可选)

例如 'example.com'， '.example.com' (包括所有子域名), 'subdomain.example.com'。如果没有定义，默认为当前文档位置的路径的域名部分 (document.cookie = "test1=Hello"; document.cookie = "test2=World"; var myCookie = document.cookie.replace(/(?:(?:^|.*;\s*)test2\s*\=\s*([^;]*).*$)|^.*$/, "$1"); alert(myCookie); // 显示：World 0 或 if (document.cookie.replace(/(?:(?:^|.*;\s*)someCookieName\s*\=\s*([^;]*).*$)|^.*$/, "$1") !== "true") { alert("Do something here!"); document.cookie = "someCookieName=true; expires=Fri, 31 Dec 9999 23:59:59 GMT; path=/"; } } 2)。

检测 cookie

语法docCookies.hasItem(name) 描述

检查一个 cookie 是否存在

参数document.cookie = "name=oeschger"; document.cookie = "favorite_food=tripe"; alert(document.cookie); // 显示：name=oeschger;favorite_food=tripe 9

要检查的 cookie 名 (document.cookie = "test1=Hello"; document.cookie = "test2=World"; var myCookie = document.cookie.replace(/(?:(?:^|.*;\s*)test2\s*\=\s*([^;]*).*$)|^.*$/, "$1"); alert(myCookie); // 显示：World 0).

得到所有 cookie 的列表

语法document.cookie = newCookie; 0描述

返回一个这个路径所有可读的 cookie 的数组。

示例用法：

document.cookie = newCookie; 1

安全

路径限制并不能阻止从其他路径访问 cookie. 使用简单的 DOM 即可轻易地绕过限制 (比如创建一个指向限制路径的，隐藏的iframe, 然后访问其 docCookies.setItem(name, value[, end[, path[, domain[, secure]]]]) 5 属性). 保护 cookie 不被非法访问的唯一方法是将它放在另一个域名/子域名之下，利用同源策略保护其不被读取。

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