其实没有题目写得那么复杂，就是用计划任务每隔一段时间调用VBS脚本，刷新生成一个文件列表文件用于WEB服务调用。

代码如下:

Option Explicit

On Error Resume Next

'生成列表的文件类型

Const sListFileType = "wmv,rm,wma"

'文件所在的相对路径

Const sShowPath="."

'排序类型的常量定义

Const iOrderFieldFileName = 0

Const iOrderFieldFileExt = 1

Const iOrderFieldFileSize = 2

Const iOrderFieldFileType = 3

Const iOrderFieldFileDate = 4

'排序顺逆的常量定义

const iOrderAsc = 0

const iOrderDesc = 1

'生成列表的文件数量

const iShowCount = 20

'显示的日期格式函数

Function Cndate2(date1,intDateStyle)

dim strdate,dDate1

strdate=cstr(date1)

If Isdate(strdate) Then

If Left(cstr(strdate),1)="0" Then

dDate1=Cdate("20"+cstr(strdate))

else

dDate1=Cdate(strdate)

End If

Else

dDate1=Now()

End If

Select case intDateStyle

Case 1:

Cndate2 = Cstr(Year(dDate1))+"-"+Cstr(Month(dDate1))+"-"+Cstr(Day(dDate1))

Case 2:

Cndate2 = Cstr(Month(dDate1))+"-"+Cstr(Day(dDate1))

Case 3:

Cndate2 = Cstr(Month(dDate1))+"月"+Cstr(Day(dDate1))+"日"

Case 4:

Cndate2 = Cstr(year(dDate1))+"年"+ Cstr(Month(dDate1))+"月"+Cstr(Day(dDate1))+"日"

End Select

End Function

Function ListFile(strFiletype,intCompare,intOrder,intShowCount)

Dim sListFile

Dim fso, f, f1, fc, s,ftype,fcount,i,j,k

Dim t1,t2,t3,t4,t5

Dim iMonth,iDay

sListFile = ""

Set fso = CreateObject("Scripting.FileSystemObject")

Set f = fso.GetFolder(sShowPath)

Set fc = f.Files

fcount = fc.count

redim arrFiles(fcount,5)

redim arrFiles2(fcount,5)

i=0

'排序

For Each f1 in fc

ftype = right(f1.name,len(f1.name)-instrrev(f1.name,"."))

arrFiles(i,0) = f1.name

arrFiles(i,1) = ftype

arrFiles(i,2) = f1.size

arrFiles(i,3) = f1.type

arrFiles(i,4) = f1.DateLastModified

i=i+1

Next

For i=0 to fcount-1

for j=i+1 to fcount-1

select Case intCompare

Case iOrderFieldFileName,iOrderFieldFileExt,iOrderFieldFileType:

If arrFiles(i,intCompare)>arrFiles(j,intCompare) then

t1 = arrFiles(i,0)

t2 = arrFiles(i,1)

t3 = arrFiles(i,2)

t4 = arrFiles(i,3)

t5 = arrFiles(i,4)

arrFiles(i,0) = arrFiles(j,0)

arrFiles(i,1) = arrFiles(j,1)

arrFiles(i,2) = arrFiles(j,2)

arrFiles(i,3) = arrFiles(j,3)

arrFiles(i,4) = arrFiles(j,4)

arrFiles(j,0) = t1

arrFiles(j,1) = t2

arrFiles(j,2) = t3

arrFiles(j,3) = t4

arrFiles(j,4) = t5

end if

Case iOrderFieldFileSize:

If cdbl(arrFiles(i,intCompare))>cdbl(arrFiles(j,intCompare)) then

t1 = arrFiles(i,0)

t2 = arrFiles(i,1)

t3 = arrFiles(i,2)

t4 = arrFiles(i,3)

t5 = arrFiles(i,4)

arrFiles(i,0) = arrFiles(j,0)

arrFiles(i,1) = arrFiles(j,1)

arrFiles(i,2) = arrFiles(j,2)

arrFiles(i,3) = arrFiles(j,3)

arrFiles(i,4) = arrFiles(j,4)

arrFiles(j,0) = t1

arrFiles(j,1) = t2

arrFiles(j,2) = t3

arrFiles(j,3) = t4

arrFiles(j,4) = t5

end if

Case iOrderFieldFileDate:

If Cdate(arrFiles(i,intCompare))>Cdate(arrFiles(j,intCompare)) then

t1 = arrFiles(i,0)

t2 = arrFiles(i,1)

t3 = arrFiles(i,2)

t4 = arrFiles(i,3)

t5 = arrFiles(i,4)

arrFiles(i,0) = arrFiles(j,0)

arrFiles(i,1) = arrFiles(j,1)

arrFiles(i,2) = arrFiles(j,2)

arrFiles(i,3) = arrFiles(j,3)

arrFiles(i,4) = arrFiles(j,4)

arrFiles(j,0) = t1

arrFiles(j,1) = t2

arrFiles(j,2) = t3

arrFiles(j,3) = t4

arrFiles(j,4) = t5

end if

End Select

next

next

'生成列表

sListFile = sListFile + ("<table cellpadding=0 cellspacing=0 width=100% align=center class=""PageListTable"" style=""BEHAVIOR: url(images/sort2.htc); "">")

sListFile = sListFile + ("<THEAD><Tr class=PageListTitleTr><Td class=PageListTitleTd>")

sListFile = sListFile + ("名称")

sListFile = sListFile + ("</td><Td class=PageListTitleTd>")

sListFile = sListFile + ("媒体")

sListFile = sListFile + ("</td><Td class=PageListTitleTd>")

sListFile = sListFile + ("大小")

sListFile = sListFile + ("</td><Td class=PageListTitleTd>")

sListFile = sListFile + ("类型")

sListFile = sListFile + ("</td><Td class=PageListTitleTd ID=updatetime>")

sListFile = sListFile + ("更新时间")

sListFile = sListFile + ("</td></Tr></THEAD>")

dim iLoopStart,iLoofEnd,iLoopStep

If intOrder = 0 then

iLoopStart = 0

iLoofEnd = fcount-1

iLoopStep = 1

Else

iLoopStart = fcount-1

iLoofEnd = 0

iLoopStep = -1

End if

dim iCount,sTDStyleClass

iCount = 1

For j=iLoopStart to iLoofEnd Step iLoopStep

If instr(strFiletype,arrFiles(j,1))>0 and iCount<=intShowCount then

sTDStyleClass = "PageListTd"+Cstr((iCount mod 2)+1)

sListFile = sListFile + ("<Tr class=PageListTr><Td class="+sTDStyleClass+">")

sListFile = sListFile + ("<img src=images/"+arrFiles(j,1)+".gif align=absbottom><img src=b.gif width=2 height=0><a href=" & sShowPath & "/" & CStr(arrFiles(j,0)) &">" & arrFiles(j,0) &"</a>")

If datediff("h",arrFiles(j,4),now)<=24 then

sListFile = sListFile + "<img src=images/new.gif align=absmiddle>"

end if

sListFile = sListFile + "</td><Td class="+sTDStyleClass+">"

sListFile = sListFile + ("<a href=" & sShowPath & "/" & CStr(arrFiles(j,0)) &">")

'根据文件名规则,生成中文提示

select case left(arrFiles(j,0),3)

case "sc2":

sListFile = sListFile + "<font color=#AA0000>四川卫视 "

case "sd2":

sListFile = sListFile + "<font color=#00AA00>山东卫视 "

case "gd2":

sListFile = sListFile + "<font color=#0000AA>广东卫视 "

case "gx2":

sListFile = sListFile + "<font color=#AAAA00>广西卫视 "

end select

'日期显示

If isnumeric(left(right(arrFiles(j,0),8),2)) then

iMonth = cint(left(right(arrFiles(j,0),8),2))

iDay = cint(left(right(arrFiles(j,0),6),2))

sListFile = sListFile + cstr(iMonth)+"月" + cstr(iDay)+"日"

sListFile = sListFile + ("</a></td><Td class="+sTDStyleClass+" align=right>")

Else

response.write arrFiles(j,0)

end if

If arrFiles(j,2)>1024*1024 then

sListFile = sListFile + cstr(round(arrFiles(j,2)/1024/1024))

sListFile = sListFile + ("MB")

else

sListFile = sListFile + cstr(round(arrFiles(j,2)/1024))

sListFile = sListFile + ("KB")

end if

sListFile = sListFile + (" </td>")

sListFile = sListFile + ("<Td class="+sTDStyleClass+">")

sListFile = sListFile + cstr(arrFiles(j,3))

sListFile = sListFile + ("</td>")

sListFile = sListFile + ("<Td class="+sTDStyleClass+">")

sListFile = sListFile + (Cndate2(arrFiles(j,4),4))

sListFile = sListFile + ("</td>")

sListFile = sListFile + ("</Tr>")

iCount = iCount+1

end if

next

sListFile = sListFile + "</table>"

ListFile = sListFile

End Function

'生成调用文件的过程

Sub ShowFileListContent()

Dim tUpdatetime,sUpdateContent

Dim fso,f,f_js,f_js_write

Set fso = CreateObject("Scripting.FileSystemObject")

Set f = fso.GetFolder(sShowPath)

Set f_js = fso.GetFile("list.js")

'比较调用文件与文件夹的最后修改时间

If f.DateLastModified<>f_js.DateLastModified then

sUpdateContent = ListFile(sListFileType,iOrderFieldFileDate,iOrderDesc,iShowCount)

Set f_js_write = fso.CreateTextFile("list.js", True)

'JS调用就加上下面这对document.write

' f_js_write.Write ("document.write('")

f_js_write.Write (sUpdateContent)

' f_js_write.Write ("')")

f_js_write.Close

End If

End Sub

Call ShowFileListContent()