使用该方法，可以用打包程序把指定的文件夹打包到一个update.xml文件中；把这个update.xml文件文件和解包文件放在一起后，运行解包文件就可以把原来的文件释放出来。
这样我们就可以把网站本地打包上传到虚拟主机，再运行解包文件就可以实现在线解压缩；
我们也可以把打包程序上传到虚拟主机，运行该文件，然后下载生成的update.xml文件，本地再用解包程序，就可以实现在线压缩功能。
在本地测试中选择了少部分文件执行成功，不知在文件很多的情况执行效率如何，当然可能仍然存在超时问题等。
其实实现的思路也很简单，主要就是利用的是xml文件可以存放二进制数据的原理。
两个主要文件如下：
pack.asp 打包文件
<%@LANGUAGE="VBSCRIPT" CODEPAGE="65001"%>
<% Option Explicit %>
<% On Error Resume Next %>
<% Response.Charset="UTF-8" %>
<% Server.ScriptTimeout=99999999 %>
<%
Dim ZipPathDir,ZipPathFile
Dim startime,endtime
'方式一：打包指定路径文件夹内文件。在此更改要打包文件夹的路径
'ZipPathDir = "D:PersonalDesktopTEM_EDIT"
'方式二：打包当前文件夹内文件。
'获取当前所在文件夹
ZipPathDir=Left(Request.ServerVariables("PATH_TRANSLATED"),InStrRev(Request.ServerVariables("PATH_TRANSLATED"),""))
ZipPathFile = "update.xml"
if right(ZipPathDir,1)<>"" then ZipPathDir=ZipPathDir&""
'开始打包
CreateXml(ZipPathFile)
'遍历目录内的所有文件以及文件夹
sub LoadData(DirPath)
dim XmlDoc
dim fso 'fso对象
dim objFolder '文件夹对象
dim objSubFolders '子文件夹集合
dim objSubFolder '子文件夹对象
dim objFiles '文件集合
dim objFile '文件对象
dim objStream
dim pathname,TextStream,pp,Xfolder,Xfpath,Xfile,Xpath,Xstream
dim PathNameStr
response.Write("打包子文件夹【 "&DirPath&" 】下的文件：
")
set fso=server.CreateObject("scripting.filesystemobject")
set objFolder=fso.GetFolder(DirPath)'创建文件夹对象
Response.Write DirPath
Response.flush
Set XmlDoc = Server.CreateObject("Microsoft.XMLDOM")
XmlDoc.load Server.MapPath(ZipPathFile)
XmlDoc.async=false
'写入每个文件夹路径
set Xfolder = XmlDoc.SelectSingleNode("//root").AppendChild(XmlDoc.CreateElement("folder"))
Set Xfpath = Xfolder.AppendChild(XmlDoc.CreateElement("path"))
Xfpath.text = replace(DirPath,ZipPathDir,"")
set objFiles=objFolder.Files
for each objFile in objFiles
if lcase(DirPath & objFile.name) <> lcase(Request.ServerVariables("PATH_TRANSLATED")) then
Response.Write " ...
"
PathNameStr = DirPath & "" & objFile.name
Response.Write PathNameStr & ""
Response.flush
'================================================
'写入文件的路径及文件内容
set Xfile = XmlDoc.SelectSingleNode("//root").AppendChild(XmlDoc.CreateElement("file"))
Set Xpath = Xfile.AppendChild(XmlDoc.CreateElement("path"))
Xpath.text = replace(PathNameStr,ZipPathDir,"")
'创建文件流读入文件内容，并写入XML文件中
Set objStream = Server.CreateObject("ADODB.Stream")
objStream.Type = 1
objStream.Open()
objStream.LoadFromFile(PathNameStr)
objStream.position = 0
Set Xstream = Xfile.AppendChild(XmlDoc.CreateElement("stream"))
Xstream.SetAttribute "xmlns:dt","urn:schemas-microsoft-com:datatypes"
'文件内容采用二制方式存放
Xstream.dataType = "bin.base64"
Xstream.nodeTypedValue = objStream.Read()
set objStream=nothing
set Xpath = nothing
set Xstream = nothing
set Xfile = nothing
'================================================
end if
next
Response.Write "
"
XmlDoc.Save(Server.Mappath(ZipPathFile))
set Xfpath = nothing
set Xfolder = nothing
set XmlDoc = nothing
'创建的子文件夹对象
set objSubFolders=objFolder.Subfolders
'调用递归遍历子文件夹
for each objSubFolder in objSubFolders
pathname = DirPath & objSubFolder.name & ""
LoadData(pathname)
next
set objFolder=nothing
set objSubFolders=nothing
set fso=nothing
end sub
'创建一个空的XML文件，为写入文件作准备
sub CreateXml(FilePath)
'程序开始执行时间
startime=timer()
dim XmlDoc,Root
Set XmlDoc = Server.CreateObject("Microsoft.XMLDOM")
XmlDoc.async = False
Set Root = XmlDoc.createProcessingInstruction("xml","version='1.0' encoding='UTF-8'")
XmlDoc.appendChild(Root)
XmlDoc.appendChild(XmlDoc.CreateElement("root"))
XmlDoc.Save(Server.MapPath(FilePath))
Set Root = Nothing
Set XmlDoc = Nothing
LoadData(ZipPathDir)
'程序结束时间
endtime=timer()
response.write "
所有文件解包完毕！
"
response.Write("页面执行时间：" & FormatNumber((endtime-startime),3) & "秒")
end sub
%>
解包程序如下：
<%@LANGUAGE="VBSCRIPT" CODEPAGE="65001"%>
<% Option Explicit %>
<% On Error Resume Next %>
<% Response.Charset="UTF-8" %>
<% Server.ScriptTimeout=99999999 %>
<%
Dim strLocalPath
'得到当前文件夹的物理路径
strLocalPath=Left(Request.ServerVariables("PATH_TRANSLATED"),InStrRev(Request.ServerVariables("PATH_TRANSLATED"),""))
Dim objXmlFile
Dim objNodeList
Dim objFSO
Dim objStream
Dim i,j
Set objXmlFile = Server.CreateObject("Microsoft.XMLDOM")
objXmlFile.load(Server.MapPath("update.xml"))
If objXmlFile.readyState=4 Then
If objXmlFile.parseError.errorCode = 0 Then
Set objNodeList = objXmlFile.documentElement.selectNodes("//folder/path")
Set objFSO = CreateObject("Scripting.FileSystemObject")
j=objNodeList.length-1
For i=0 To j
If objFSO.FolderExists(strLocalPath & objNodeList(i).text)=False Then
objFSO.CreateFolder(strLocalPath & objNodeList(i).text)
Response.Write "成功创建目录:" & objNodeList(i).text & "
"
Response.Flush
End If
Next
Set objFSO = nothing
Set objNodeList = nothing
Set objNodeList = objXmlFile.documentElement.selectNodes("//file/path")
j=objNodeList.length-1
For i=0 To j
Set objStream = CreateObject("ADODB.Stream")
With objStream
.Type = 1
.Open
.Write objNodeList(i).nextSibling.nodeTypedvalue
.SaveToFile strLocalPath & objNodeList(i).text,2
Response.Write "成功释放文件:" & objNodeList(i).text & "
"
Response.Flush
.Close
End With
Set objStream = Nothing
Next
Set objNodeList = nothing
End If
End If
Set objXmlFile = Nothing
response.write "
所有文件解包完毕"
%>
缺少语句
/pack.asp，行 9
Option Explicit
^
呵呵，我把PJBLOG那个自动安装压缩程序进行了整理，加上了压缩功能。现在很过多美了！
自动解压更新，显示进度条，自动删了安装更新文件。祥情关注我的博客：www.iebe.cn
[reply=任侠,2009-09-28 09:17 PM]基本原理大致类似，看过了，做的不错！[/reply]