当前位置: 首页 > 图文教程 > 网络编程 > Javascript > 写入cookie的JavaScript代码库 cookieLibrary.js

Javascript
不是原型继承那么简单！！prototype的深度探索
JavaScript与函数式编程解释
转一个日期输入控件，支持FF
用 JSON 处理缓存
改版了网上的一个js操作userdata
仿服务器端脚本方式的JS模板实现方法
javascript函数库-集合框架
Javascript模板技术
javascript实现的listview效果
JavaScript 实现網頁打印處理
（推荐一个超好的JS函数库）S.Sams Lifexperience ScriptClassLib
实现div可编辑的常见方法总结
js奇偶数判断的代码
可以支持多中格式的JS键盘
javascript静态的url如何传递
JS实多级联动下拉菜单类，简单实现省市区联动菜单！
Packer 3.0 JS压缩及混淆工具 下载
学习jquery必备 api中英文对照的chm手册 下载
用js实现CSS圆角生成更新
用js实现的抽象CSS圆角效果!!

No. « 64 65 66 67 »

技术文章搜索

关键字

Javascript 中的 写入cookie的JavaScript代码库 cookieLibrary.js

出处:互联网   整理: 软晨网（RuanChen.com）   发布: 2010-01-10   浏览: 371 ::
收藏到网摘: n/a

cookieLibrary.js 写入cookie的JavaScript代码库,需要的朋友可以参考下。 /* Cookie Library -- "Night of the Living Cookie" Version (25-Jul-96)
2缔友计算机信息技术有限公司，涂聚文 [email protected] 互相交流
3 Written by: Bill Dortch, hIdaho Design <[email protected]>
4 The following functions are released to the public domain.
5http://www.dusystem.com/
6 This version takes a more aggressive approach to deleting
7 cookies. Previous versions set the expiration date to one
8 millisecond prior to the current time; however, this method
9 did not work in Netscape 2.02 (though it does in earlier and
later versions), resulting in "zombie" cookies that would not
die. DeleteCookie now sets the expiration date to the earliest
usable date (one second into 1970), and sets the cookie's value
to null for good measure.
Also, this version adds optional path and domain parameters to
the DeleteCookie function. If you specify a path and/or domain
when creating (setting) a cookie**, you must specify the same
path/domain when deleting it, or deletion will not occur.
The FixCookieDate function must now be called explicitly to
correct for the 2.x Mac date bug. This function should be
called *once* after a Date object is created and before it
is passed (as an expiration date) to SetCookie. Because the
Mac date bug affects all dates, not just those passed to
SetCookie, you might want to make it a habit to call
FixCookieDate any time you create a new Date object:
var theDate = new Date();
FixCookieDate (theDate);
Calling FixCookieDate has no effect on platforms other than
the Mac, so there is no need to determine the user's platform
prior to calling it.
This version also incorporates several minor coding improvements.
**Note that it is possible to set multiple cookies with the same
name but different (nested) paths. For example:
SetCookie ("color","red",null,"/outer");
SetCookie ("color","blue",null,"/outer/inner");
However, GetCookie cannot distinguish between these and will return
the first cookie that matches a given name. It is therefore
recommended that you *not* use the same name for cookies with
different paths. (Bear in mind that there is *always* a path
associated with a cookie; if you don't explicitly specify one,
the path of the setting document is used.)
Revision History:
"Toss Your Cookies" Version (22-Mar-96)
- Added FixCookieDate() function to correct for Mac date bug
"Second Helping" Version (21-Jan-96)
- Added path, domain and secure parameters to SetCookie
- Replaced home-rolled encode/decode functions with Netscape's
new (then) escape and unescape functions
"Free Cookies" Version (December 95)

For information on the significance of cookie parameters, and
and on cookies in general, please refer to the official cookie
spec, at:
http:www.netscape.com/newsref/std/cookie_spec.html
****************************************************************** */
/**//* "Internal" function to return the decoded value of a cookie */
复制代码 代码如下:

function getCookieVal (offset) {
var endstr = document.cookie.indexOf (";", offset);
if (endstr == -1) {
endstr = document.cookie.length;
}
return unescape(document.cookie.substring(offset, endstr));
}

/**//* Function to correct for 2.x Mac date bug. Call this function to
fix a date object prior to passing it to SetCookie.
IMPORTANT: This function should only be called *once* for
any given date object! See example at the end of this document. */
复制代码 代码如下:

function FixCookieDate (date) {
var base = new Date(0);
var skew = base.getTime(); // dawn of (Unix) time - should be 0
if (skew > 0) { // except on the Mac - ahead of its time
date.setTime(date.getTime() - skew);
}
}

/**//* Function to return the value of the cookie specified by "name".
name - String object containing the cookie name.
returns - String object containing the cookie value, or null if
the cookie does not exist. */
复制代码 代码如下:

function GetCookie (name) {
var temp = name + "=";
var tempLen = temp.length;
var cookieLen = document.cookie.length;
var i = 0;
while (i < cookieLen) {
var j = i + tempLen;
if (document.cookie.substring(i, j) == temp) {
return getCookieVal(j);
}
i = document.cookie.indexOf(" ", i) + 1;
if (i == 0) break;
}
return null;
}

/**//* Function to create or update a cookie.
name - String object containing the cookie name.
value - String object containing the cookie value. May contain
any valid string characters.
[expiresDate] - Date object containing the expiration data of the cookie. If
omitted or null, expires the cookie at the end of the current session.
[path] - String object indicating the path for which the cookie is valid.
If omitted or null, uses the path of the calling document.
[domain] - String object indicating the domain for which the cookie is
valid. If omitted or null, uses the domain of the calling document.
[secure] - Boolean (true/false) value indicating whether cookie transmission
requires a secure channel (HTTPS).
The first two parameters are required. The others, if supplied, must
be passed in the order listed above. To omit an unused optional field,
use null as a place holder. For example, to call SetCookie using name,
value and path, you would code:
SetCookie ("myCookieName", "myCookieValue", null, "/");
Note that trailing omitted parameters do not require a placeholder.
To set a secure cookie for path "/myPath", that expires after the
current session, you might code:
SetCookie (myCookieVar, cookieValueVar, null, "/myPath", null, true); */
复制代码 代码如下:

function SetCookie (name,value,expiresDate,path,domain,secure) {
document.cookie = name + "=" + escape (value) +
((expiresDate) ? "; expires=" + expiresDate.toGMTString() : "") +
((path) ? "; path=" + path : "") +
((domain) ? "; domain=" + domain : "") +
((secure) ? "; secure" : "");
}

/**//* Function to delete a cookie. (Sets expiration date to start of epoch)
name - String object containing the cookie name
path - String object containing the path of the cookie to delete. This MUST
be the same as the path used to create the cookie, or null/omitted if
no path was specified when creating the cookie.
domain - String object containing the domain of the cookie to delete. This MUST
be the same as the domain used to create the cookie, or null/omitted if
no domain was specified when creating the cookie. */
复制代码 代码如下:

function DeleteCookie (name,path,domain) {
if (GetCookie(name)) {
document.cookie = name + "=" +
((path) ? "; path=" + path : "") +
((domain) ? "; domain=" + domain : "") +
"; expires=Thu, 01-Jan-70 00:00:01 GMT";
}
}


// Calling examples:
// var expdate = new Date ();
// FixCookieDate (expdate); // Correct for Mac date bug - call only once for given Date object!
// expdate.setTime (expdate.getTime() + (24 * 60 * 60 * 1000)); // 24 hrs from now
// SetCookie ("ccpath", "http://www.dupcit.com/articles/", expdate);
// SetCookie ("ccname", "WebWoman", expdate);
// SetCookie ("tempvar", "This is a temporary cookie.");
// SetCookie ("ubiquitous", "This cookie will work anywhere in this domain",null,"/");
// SetCookie ("paranoid", "This cookie requires secure communications",expdate,"/",null,true);
// SetCookie ("goner", "This cookie must die!");
// document.write (document.cookie + "<br>");
// DeleteCookie ("goner");
// document.write (document.cookie + "<br>");
// document.write ("ccpath = " + GetCookie("ccpath") + "<br>");
// document.write ("ccname = " + GetCookie("ccname") + "<br>");
// document.write ("tempvar = " + GetCookie("tempvar") + "<br>");