cookie 读写..

C_sdnElf 2008-12-20 10:19:38

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<TITLE> New Document </TITLE>
<script type = "text/javascript">
function setCookie(sName,sValue,oExpires,sPath,sDomain,bSecure)
{
var sCookie = sName + "=" + encodeURIComponent(sValue);
if(oExpires)
{
alert(oExpires);
sCookie += "; expires=" + oExpires.toGMTString();
}
if(sPath)
{
sCookie += "; path=" + sPath;
}
if(sDomain)
{
sCookie += "; domain=" + sDomain;
}
if(bSecure)
{
sCookie += "; secure";
}
document.cookie = sCookie;
}

function getCookie(sName)
{
var sRE = "(?:; )?" + sName + "=([^;]*);?";
var oRE = new RegExp(sRE);

if(oRE.test(document.cookie))
{
return decodeURIComponent(RegExp["$1"]);
}
else
{
return null;
}
}

function deleteCookie(sName,sPath,sDomain)
{
setCookie(sName,"",new Date(0),sPath,sDomain);
}

setCookie("name","Nicholas");
setCookie("mm","Professional JavaScript",new Date(Date.parse("Jan 1, 2008")));
setCookie("message","Hello World!","Jan 1, 2008","/books","http://www.wrox.com",true);

var sName = getCookie("name");
var sBook = getCookie("mm");
var sMessage = getCookie("message");

alert(sName);
alert(sBook);/*null读不出值*/
alert(sMessage);/*null读不出值*/
</script>
</HEAD>

<BODY>
</BODY>
</HTML>

在cookie里设置信息，再读出来，可是，我只是设置名字和值能正确读出来，可是其他的就读不出来。

不知道哪里出了问题

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tommir3 2008-12-20

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太帅了

mengxj85 2008-12-20

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[Quote=引用 2 楼 asdfgh_5982 的回复:]
测试了一下，传入的时间有问题。换一个Cookie的操作方式吧。你写的不怎么样

JScript code
//function to decode Cookie then get Cookie value
function GetCookieVal(offset)
{
var endstr = document.cookie.indexOf (":", offset);
if (endstr == -1)
endstr = document.cookie.length;
return unescape(document.cookie.substring(offset, endstr));
}
//set Cookie value
function SetCookie…
[/Quote]
楼上好强，顶

asdfgh_5982 2008-12-20

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测试了一下，传入的时间有问题。换一个Cookie的操作方式吧。你写的不怎么样



//function to decode Cookie then get Cookie value

function GetCookieVal(offset)

{

	var endstr = document.cookie.indexOf (":", offset);

	if (endstr == -1)

	endstr = document.cookie.length;

	return unescape(document.cookie.substring(offset, endstr));

}

//set Cookie value

function SetCookie(name, value)

{

	var expdate = new Date();

	var argv = SetCookie.arguments;

	var argc = SetCookie.arguments.length;

	var expires = (argc > 2) ? argv[2] : null;

	var path = (argc > 3) ? argv[3] : null;

	var domain = (argc > 4) ? argv[4] : null;

	var secure = (argc > 5) ? argv[5] : false;

	if(expires!=null) expdate.setTime(expdate.getTime() + ( expires * 1000 ));

	document.cookie = name + "=" + escape (value) +((expires == null) ? "" : ("; expires="+ expdate.toGMTString()))

	+((path == null) ? "" : ("; path=" + path)) +((domain == null) ? "" : ("; domain=" + domain))

	+((secure == true) ? "; secure" : "");

}

//function:delete Cookie

function DelCookie(name)

{

	var exp = new Date();

	exp.setTime (exp.getTime() - 1);

	var cval = GetMyCookie (name);

	document.cookie = name + "=" + cval + "; expires="+ exp.toGMTString();

}

//  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.

function GetNoEscapeCookie(name) {

	var dc = document.cookie;

	var prefix = name + "=";

	var begin = dc.indexOf("; " + prefix);

	if (begin == -1) 

	{

		begin = dc.indexOf(prefix);

		if (begin != 0) return null;

	} 

	else

		begin += 2;

		

	var end = document.cookie.indexOf(";", begin);

	if (end == -1) end = dc.length;

	return dc.substring(begin + prefix.length, end);

}