FSO文件处理函数详解


ASP #fso #函数2012-05-09 10:14
<% 
'建立文件夹函数 
Function CreateFolder(strFolder)'参数为相对路径 
'首选判断要建立的文件夹是否已经存在 
Dim strTestFolder,objFSO 
strTestFolder = Server.Mappath(strFolder) 
Set objFSO = CreateObject("Scripting.FileSystemObject") 
'检查文件夹是否存在 
If not objFSO.FolderExists(strTestFolder) Then 
'如果不存在则建立文件夹 
objFSO.CreateFolder(strTestFolder) 
End If 
Set objFSO = Nothing 
End function 

'删除文件夹 
Function DelFolder(strFolder)'参数为相对路径 
strTestFolder = Server.Mappath(strFolder) 
Set objFSO = CreateObject("Scripting.FileSystemObject") 
'检查文件夹是否存在 
If objFSO.FolderExists(strTestFolder) Then 
objFSO.DeleteFolder(strTestFolder) 
end if 
Set objFSO = Nothing 
End function 

'创建文本文件 
Function Createtextfile(fileurl,filecontent)'参数为相对路径和要写入文件的内容 
Set objFSO = Server.CreateObject("Scripting.FileSystemObject") 
Set fout = objFSO.CreateTextFile(Server.MapPath(fileurl)) 
fout.WriteLine filecontent 
fout.close 
Set objFSO = Nothing 
End Function 

'删除文件(适合所有文件) 
Function Deltextfile(fileurl)'参数为相对路径 
Set objFSO = CreateObject("Scripting.FileSystemObject") 
fileurl = Server.MapPath(fileurl) 
if objFSO.FileExists(fileurl) then '检查文件是否存在 
objFSO.DeleteFile(Server.mappath(fileurl)) 
end if 
Set objFSO = nothing 
End Function 

'建立图片文件并保存图片数据流 
Function Createimage(fileurl,imagecontent)'参数为相对路径和文件内容 
Set objStream = Server.CreateObject("ADODB.Stream") '建立ADODB.Stream对象,必须要ADO 2.5以上版本 
objStream.Type =1 '以二进制模式打开 
objStream.Open 
objstream.write imagecontent '将字符串内容写入缓冲 
objstream.SaveToFile server.mappath(fileurl),2 '-将缓冲的内容写入文件 
objstream.Close()'关闭对象 
set objstream=nothing 
End Function 

'远程获取文件数据 
Function getHTTPPage(url) 
'On Error Resume Next 
dim http 
set http=Server.createobject("Microsoft.XMLHTTP") 
Http.open "GET",url,false 
Http.send() 
if Http.readystate<>4 then 
exit function 
end if 
getHTTPPage=bytesToBSTR(Http.responseBody,"GB2312") 
set http=nothing 
If Err.number<>0 then 
getHTTPPage = "服务器获取文件内容出错" 
Err.Clear 
End If 
End function 

Function BytesToBstr(body,Cset) 
dim objstream 
set objstream = Server.CreateObject("adodb.stream") 
objstream.Type = 1 
objstream.Mode =3 
objstream.Open 
objstream.Write body 
objstream.Position = 0 
objstream.Type = 2 
objstream.Charset = Cset 
BytesToBstr = objstream.ReadText 
objstream.Close 
set objstream = nothing 
End Function 

'获取图片数据流 
Function getpic(url) 
on error resume next 
dim http 
set http=server.createobject("MSXML2.XMLHTTP")'使用xmlhttp的方法来获得图片的内容 
Http.open "GET",url,false 
Http.send() 
if Http.readystate<>4 then 
exit function 
end if 
getpic=Http.responseBody 
set http=nothing 
if err.number<>0 then 
getpic = "服务器获取文件内容出错" 
err.Clear 
End if 
End Function 

'打开文件(文本形式) 
Function OpenFile(fileurl)'文件相对路径 
Dim Filename,fso,hndFile 
Filename = fileurl 
Filename = Server.MapPath(Filename) 
Set objfso = CreateObject("Scripting.FileSystemObject") 
If objfso.FileExists(Filename) Then 
set hndFile = objfso.OpenTextFile(Filename) 
OpenFile = hndFile.ReadAll 
Else 
OpenFile = "文件读取错误" 
End If 
Set hndFile = Nothing 
Set objfso = Nothing 
End Function 

'获得文件的后缀名 
function getFileExtName(fileName) 
dim pos 
pos=instrrev(filename,".") 
if pos>0 then 
getFileExtName=mid(fileName,pos+1) 
else 
getFileExtName="" 
end if 
end function 
%> 

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