用XML+FSO+JS实现服务器端文件的选择
首先在服务器端先创建一个程序可以生成xml(标准化越来越近了)文件，以返回客户端，（getfolder.）
<%
written by linzhang chen ,2003-4-20
转载请注明出处和保留此版权信息
response.write "<?xml(标准化越来越近了) version=""1.0"" encoding=""gb2312""?>"&chr(13)
response.write "<mediafile>"&chr(13)
folders=request("folder")
if folders="/" then
folders=""
end if
dim count
count=0
folders=replace(folders,"..","")
basefolder="../media/"基准的文件夹路径
newfolder=basefolder&folders
set fso =server.createobject("scripting.filesystemobject")
set f=fso.getfolder(server.mappath(newfolder))
set sf=f.subfolders
for each fd in sf返回指定路径下面的文件夹列表
response.write "<file>"&chr(13)
response.write "<ftype>folder</ftype>"&chr(13)
response.write "<fname>"&fd.name&"</fname>"&chr(13)
response.write "</file>"&chr(13)
count=count+1
next
set sf=nothing
set ff=f.files
for each fi in ff
fname=fi.name
if instr("asf,wma,wmv",lcase(mid(fname,instrrev(fname,".")+1)))>0 then设定允许返回的文件类型，防止泄露
response.write "<file>"&chr(13)
response.write "<ftype>file</ftype>"&chr(13)
response.write "<fname>"&fname&"</fname>"&chr(13)
response.write "</file>"&chr(13)
count=count+1
end if
next
如果该目录下没有文件，就发一个空元素
if count=0 then
response.write "<file>"&chr(13)
response.write "<ftype>empty</ftype>"&chr(13)
response.write "<fname>0</fname>"&chr(13)
response.write "</file>"&chr(13)
end if
response.write "</mediafile>"
set ff=nothing
set f=nothing
set fso=nothing
%>
下面就是客户端的js的功夫了(selectfile.asp)
<!doctype html public "-//w3c//dtd html 4.0 transitional//en">
<html>
<head>
<title> 选择视频文件 </title>
<style>
td{font-size:9pt}
select{width:210}
.s2{width:250}
</style>
<script language="javascript">
<!--
/*written by linzhang chen ,2003-4-20
转载请注明出处和保留此版权信息 */
//预装载图片
var imgback = new image();
imgback.src = "images/arrow.gif";
var imgbackgray = new image();
imgbackgray.src = "images/grayarrow.gif";
var imgfolder = new image();
imgfolder.src = "images/folder.gif";
var imggrayfolder = new image();
imggrayfolder.src = "images/grayfolder.gif";
//历史记录数组栈
var arrhistory=new array();
var hisi=0;
//用来确定要返回文件名
function check()
{
if (document.all.filename.value=="")
{
alert("请先选择文件");
return false;
}
else
{
window.returnvalue =document.f1.folder.value+document.all.filename.value;
window.close();
}
}
//取得xml(标准化越来越近了)文件的内容
function getuserlist(url)
{ var oxml(标准化越来越近了)doc = new activexobject(msxml(标准化越来越近了));
oxml(标准化越来越近了)doc.url = url;
var ooroot=oxml(标准化越来越近了)doc.root;
return ooroot;
}
//当选中一个文件时，把这个值返回给文本框
function addfile(txt)
{
document.all.filename.value=txt;
}
var first=1;//定义一个全局变量
function userlist(folders,ti)//列出所选框
{document.f1.folder.value=folders;
filebox.document.body.innerhtml="正在加载文件，请稍侯...";
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