ASP中文件如何读写???????

abcdefg3305 2004-11-24 10:07:21
有哪位老鸟给我讲解一下用ASP程序处理文件的读写及一些通常的处理的方法及代码,就好代码上能有注解此句代码的意思,我给一百分,如果分不够我可以再给,希望老鸟们别说我黑,谁叫我是一个菜鸟呢!!
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iuhxq 2004-11-24
http://blog.csdn.net/iuhxq/archive/2004/06/03/20194.aspx
回复
cuixiping 2004-11-24


''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
'
' CreateLyrics
'
' 目的:
'
' 在文件夹中创建两个文本文件。
'
'
' 示范下面的内容
'
' - FileSystemObject.CreateTextFile
' - TextStream.WriteLine
' - TextStream.Write
' - TextStream.WriteBlankLines
' - TextStream.Close
'
''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''

Sub CreateLyrics(Folder)

Dim TextStream

Set TextStream = Folder.CreateTextFile("OctopusGarden.txt")

TextStream.Write("Octopus' Garden ") ' 请注意,该语句不添加换行到文件中。
TextStream.WriteLine("(by Ringo Starr)")
TextStream.WriteBlankLines(1)
TextStream.WriteLine("I'd like to be under the sea in an octopus' garden in the shade,")
TextStream.WriteLine("He'd let us in, knows where we've been -- in his octopus' garden in the shade.")
TextStream.WriteBlankLines(2)

TextStream.Close

Set TextStream = Folder.CreateTextFile("BathroomWindow.txt")
TextStream.WriteLine("She Came In Through The Bathroom Window (by Lennon/McCartney)")
TextStream.WriteLine("")
TextStream.WriteLine("She came in through the bathroom window protected by a silver spoon")
TextStream.WriteLine("But now she sucks her thumb and wanders by the banks of her own lagoon")
TextStream.WriteBlankLines(2)
TextStream.Close

End Sub

''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
'
' GetLyrics
'
' 目的:
'
' 显示 lyrics 文件的内容。
'
'
' 示范下面的内容
'
' - FileSystemObject.OpenTextFile
' - FileSystemObject.GetFile
' - TextStream.ReadAll
' - TextStream.Close
' - File.OpenAsTextStream
' - TextStream.AtEndOfStream
' - TextStream.ReadLine
'
''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''

Function GetLyrics(FSO)

Dim TextStream
Dim S
Dim File

' 有多种方法可用来打开一个文本文件,和多种方法来从文件读取数据。
' 这儿用了两种方法来打开文件和读取文件:

Set TextStream = FSO.OpenTextFile(TestFilePath & "\Beatles\OctopusGarden.txt", OpenFileForReading)

S = TextStream.ReadAll & NewLine & NewLine
TextStream.Close

Set File = FSO.GetFile(TestFilePath & "\Beatles\BathroomWindow.txt")
Set TextStream = File.OpenAsTextStream(OpenFileForReading)
Do While Not TextStream.AtEndOfStream
S = S & TextStream.ReadLine & NewLine
Loop
TextStream.Close

GetLyrics = S

End Function


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'
' BuildTestDirectory
'
' 目的:
'
' 创建一个目录分层结构来示范 FileSystemObject。
'
' 以这样的次序来创建分层结构:
'
' C:\Test
' C:\Test\ReadMe.txt
' C:\Test\Beatles
' C:\Test\Beatles\OctopusGarden.txt
' C:\Test\Beatles\BathroomWindow.txt
'
'
' 示范下面的内容
'
' - FileSystemObject.DriveExists
' - FileSystemObject.FolderExists
' - FileSystemObject.CreateFolder
' - FileSystemObject.CreateTextFile
' - Folders.Add
' - Folder.CreateTextFile
' - TextStream.WriteLine
' - TextStream.Close
'
''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''

Function BuildTestDirectory(FSO)

Dim TestFolder
Dim SubFolders
Dim SubFolder
Dim TextStream

' 排除(a)驱动器不存在,或(b)要创建的目录已经存在的情况。

If Not FSO.DriveExists(TestDrive) Then
BuildTestDirectory = False
Exit Function
End If

If FSO.FolderExists(TestFilePath) Then
BuildTestDirectory = False
Exit Function
End If

Set TestFolder = FSO.CreateFolder(TestFilePath)

Set TextStream = FSO.CreateTextFile(TestFilePath & "\ReadMe.txt")
TextStream.WriteLine("My song lyrics collection")
TextStream.Close

Set SubFolders = TestFolder.SubFolders

Set SubFolder = SubFolders.Add("Beatles")

CreateLyrics SubFolder

BuildTestDirectory = True

End Function



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'
' 主程序
'
' 首先,它创建一个 test 目录,以及一些子文件夹和文件。
' 然后,它转储有关可用磁盘驱动器和 test 目录的某些信息,
' 最后,清除 test 目录及其所有内容。
'
''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''

Sub Main

Dim FSO

' 设立全局变量。
TabStop = Chr(9)
NewLine = Chr(10)

Set FSO = CreateObject("Scripting.FileSystemObject")

If Not BuildTestDirectory(FSO) Then
Print "Test directory already exists or cannot be created. Cannot continue."
Exit Sub
End If

Print GenerateDriveInformation(FSO) & NewLine & NewLine

Print GenerateTestInformation(FSO) & NewLine & NewLine

Print GetLyrics(FSO) & NewLine & NewLine

DeleteTestDirectory(FSO)

End Sub
回复
cuixiping 2004-11-24
Function GenerateDriveInformation(FSO)

Dim Drives
Dim Drive
Dim S

Set Drives = FSO.Drives

S = "Number of drives:" & TabStop & Drives.Count & NewLine & NewLine

' 构造报告的第一行。
S = S & String(2, TabStop) & "Drive"
S = S & String(3, TabStop) & "File"
S = S & TabStop & "Total"
S = S & TabStop & "Free"
S = S & TabStop & "Available"
S = S & TabStop & "Serial" & NewLine

' 构造报告的第二行。
S = S & "Letter"
S = S & TabStop & "Path"
S = S & TabStop & "Type"
S = S & TabStop & "Ready?"
S = S & TabStop & "Name"
S = S & TabStop & "System"
S = S & TabStop & "Space"
S = S & TabStop & "Space"
S = S & TabStop & "Space"
S = S & TabStop & "Number" & NewLine

' 分隔行。
S = S & String(105, "-") & NewLine

For Each Drive In Drives

S = S & Drive.DriveLetter
S = S & TabStop & Drive.Path
S = S & TabStop & ShowDriveType(Drive)
S = S & TabStop & Drive.IsReady

If Drive.IsReady Then
If DriveTypeNetwork = Drive.DriveType Then
S = S & TabStop & Drive.ShareName
Else
S = S & TabStop & Drive.VolumeName
End If

S = S & TabStop & Drive.FileSystem
S = S & TabStop & Drive.TotalSize
S = S & TabStop & Drive.FreeSpace
S = S & TabStop & Drive.AvailableSpace
S = S & TabStop & Hex(Drive.SerialNumber)

End If

S = S & NewLine

Next

GenerateDriveInformation = S

End Function

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'
' GenerateFileInformation
'
' 目的:
'
' 生成一个字符串,来描述文件的当前状态。
'
' 示范下面的内容
'
' - File.Path
' - File.Name
' - File.Type
' - File.DateCreated
' - File.DateLastAccessed
' - File.DateLastModified
' - File.Size
'
''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''

Function GenerateFileInformation(File)

Dim S

S = NewLine & "Path:" & TabStop & File.Path
S = S & NewLine & "Name:" & TabStop & File.Name
S = S & NewLine & "Type:" & TabStop & File.Type
S = S & NewLine & "Attribs:" & TabStop & ShowFileAttr(File)
S = S & NewLine & "Created:" & TabStop & File.DateCreated
S = S & NewLine & "Accessed:" & TabStop & File.DateLastAccessed
S = S & NewLine & "Modified:" & TabStop & File.DateLastModified
S = S & NewLine & "Size" & TabStop & File.Size & NewLine

GenerateFileInformation = S

End Function


''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
'
' GenerateFolderInformation
'
' 目的:
'
' 生成一个字符串,来描述文件夹的当前状态。
'
' 示范下面的内容
'
' - Folder.Path
' - Folder.Name
' - Folder.DateCreated
' - Folder.DateLastAccessed
' - Folder.DateLastModified
' - Folder.Size
'
''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''

Function GenerateFolderInformation(Folder)

Dim S

S = "Path:" & TabStop & Folder.Path
S = S & NewLine & "Name:" & TabStop & Folder.Name
S = S & NewLine & "Attribs:" & TabStop & ShowFileAttr(Folder)
S = S & NewLine & "Created:" & TabStop & Folder.DateCreated
S = S & NewLine & "Accessed:" & TabStop & Folder.DateLastAccessed
S = S & NewLine & "Modified:" & TabStop & Folder.DateLastModified
S = S & NewLine & "Size:" & TabStop & Folder.Size & NewLine

GenerateFolderInformation = S

End Function

''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
'
' GenerateAllFolderInformation
'
' 目的:
'
' 生成一个字符串,来描述一个文件夹和所有文件及子文件夹的当前状态。
'
' 示范下面的内容
'
' - Folder.Path
' - Folder.SubFolders
' - Folders.Count
'
''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''

Function GenerateAllFolderInformation(Folder)

Dim S
Dim SubFolders
Dim SubFolder
Dim Files
Dim File

S = "Folder:" & TabStop & Folder.Path & NewLine & NewLine

Set Files = Folder.Files

If 1 = Files.Count Then
S = S & "There is 1 file" & NewLine
Else
S = S & "There are " & Files.Count & " files" & NewLine
End If

If Files.Count <> 0 Then

For Each File In Files
S = S & GenerateFileInformation(File)
Next

End If

Set SubFolders = Folder.SubFolders

If 1 = SubFolders.Count Then
S = S & NewLine & "There is 1 sub folder" & NewLine & NewLine
Else
S = S & NewLine & "There are " & SubFolders.Count & " sub folders" & NewLine & NewLine
End If

If SubFolders.Count <> 0 Then

For Each SubFolder In SubFolders
S = S & GenerateFolderInformation(SubFolder)
Next

S = S & NewLine

For Each SubFolder In SubFolders
S = S & GenerateAllFolderInformation(SubFolder)
Next

End If

GenerateAllFolderInformation = S

End Function

''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
'
' GenerateTestInformation
'
' 目的:
'
' 生成一个字符串,来描述 C:\Test 文件夹和所有文件及子文件夹的当前状态。
'
' 示范下面的内容
'
' - FileSystemObject.DriveExists
' - FileSystemObject.FolderExists
' - FileSystemObject.GetFolder
'
''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''

Function GenerateTestInformation(FSO)

Dim TestFolder
Dim S

If Not FSO.DriveExists(TestDrive) Then Exit Function
If Not FSO.FolderExists(TestFilePath) Then Exit Function

Set TestFolder = FSO.GetFolder(TestFilePath)

GenerateTestInformation = GenerateAllFolderInformation(TestFolder)

End Function


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'
' DeleteTestDirectory
'
' 目的:
'
' 清理 test 目录。
'
' 示范下面的内容
'
' - FileSystemObject.GetFolder
' - FileSystemObject.DeleteFile
' - FileSystemObject.DeleteFolder
' - Folder.Delete
' - File.Delete
'
''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''

Sub DeleteTestDirectory(FSO)

Dim TestFolder
Dim SubFolder
Dim File

' 有两种方法可用来删除文件:

FSO.DeleteFile(TestFilePath & "\Beatles\OctopusGarden.txt")

Set File = FSO.GetFile(TestFilePath & "\Beatles\BathroomWindow.txt")
File.Delete



' 有两种方法可用来删除文件夹:

FSO.DeleteFolder(TestFilePath & "\Beatles")

FSO.DeleteFile(TestFilePath & "\ReadMe.txt")

Set TestFolder = FSO.GetFolder(TestFilePath)
TestFolder.Delete

End Sub
回复
cuixiping 2004-11-24
Microsoft(R) Scripting 库 - FileSystemObject
FileSystemObject
示例代码
上一页





--------------------------------------------------------------------------------

在本节描述的示例代码,提供真实的例子来示范在 FileSystemObject 对象模式中可用的许多功能。该代码显示了如何一起使用对象模式的所有功能,以及如何在您自己的代码中有效地使用这些功能。
请注意,由于该代码是极一般的,所以要使该代码能够真正在您的机器上运行,可能需要一些其他代码和小小的变更。这些改变之所以必要,是因为在 Active Server Pages 和 Windows Scripting Host 之间,为输入和输出给用户采用了不同的方法。

要在 Active Server Pages 上运行该代码,则采取以下步骤:


创建一个标准的 Web 页,后缀名为 .asp。
把下面的示例代码复制到 <BODY>...</BODY> 标记之间的文件中。
把所有代码封装到 <%...%> 标记内。
把 Option Explicit 语句从当前位置移动到 HTML 页的最顶部,甚至在 <HTML> 开始标记前。
把 <%...%> 标记放置在 Option Explicit 语句周围,以保证它在服务器端运行。
把下面的代码添加到示例代码末尾:
Sub Print(x)
Response.Write "<PRE><FONT face="宋体"" SIZE=""1"">"
Response.Write x
Response.Write "</FONT></PRE>"
End Sub
Main

前面的代码增加一个将在服务器端运行,但在客户端显示结果的打印过程。要在 Windows Scripting Host 上运行该代码,则把下面的代码添加到示例代码的末尾:
Sub Print(x)
WScript.Echo x
End Sub
Main

下面就是示例代码:


--------------------------------------------------------------------------------

''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
'
' FileSystemObject 示例代码
'
'Copyright 1998 Microsoft Corporation。保留所有权利。
'
''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''

Option Explicit

''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
'
' 对于代码质量:
'
' 1) 下面的代码有许多字符串操作,用"&"运算符来把短字符串连接在一起。由于
' 字符串连接是费时的,所以这是一种低效率的写代码方法。无论如何,它是
' 一种非常好维护的写代码方法,并且在这儿使用了这种方法,因为该程序执行
' 大量的磁盘操作,而磁盘操作比连接字符串所需的内存操作要慢得多。
' 记住这是示范代码,而不是产品代码。
'
' 2) 使用了 "Option Explicit",因为访问声明过的变量,比访问未声明的变量要
' 稍微快一些。它还能阻止在代码中发生错误,例如,把 DriveTypeCDROM 误拼
' 成了 DriveTypeCDORM 。
'
' 3) 为了使代码更可读,该代码中没有错误处理。虽然采取了防范措施,来保证代码
' 在普通情况下没有错误,但文件系统是不可预知的。在产品代码中,使用
' On Error Resume Next 和 Err 对象来捕获可能发生的错误。
'
''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''

''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
'
' 一些容易取得的全局变量
'
''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''

Dim TabStop
Dim NewLine

Const TestDrive = "C"
Const TestFilePath = "C:\Test"

''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
'
' 由 Drive.DriveType 返回的常数
'
''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''

Const DriveTypeRemovable = 1
Const DriveTypeFixed = 2
Const DriveTypeNetwork = 3
Const DriveTypeCDROM = 4
Const DriveTypeRAMDisk = 5

''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
'
' 由 File.Attributes 返回的常数
'
''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''

Const FileAttrNormal = 0
Const FileAttrReadOnly = 1
Const FileAttrHidden = 2
Const FileAttrSystem = 4
Const FileAttrVolume = 8
Const FileAttrDirectory = 16
Const FileAttrArchive = 32
Const FileAttrAlias = 64
Const FileAttrCompressed = 128

''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
'
' 用来打开文件的常数
'
''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''

Const OpenFileForReading = 1
Const OpenFileForWriting = 2
Const OpenFileForAppending = 8


''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
'
' ShowDriveType
'
' 目的:
'
' 生成一个字符串,来描述给定 Drive 对象的驱动器类型。
'
' 示范下面的内容
'
' - Drive.DriveType
'
''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''

Function ShowDriveType(Drive)

Dim S

Select Case Drive.DriveType
Case DriveTypeRemovable
S = "Removable"
Case DriveTypeFixed
S = "Fixed"
Case DriveTypeNetwork
S = "Network"
Case DriveTypeCDROM
S = "CD-ROM"
Case DriveTypeRAMDisk
S = "RAM Disk"
Case Else
S = "Unknown"
End Select

ShowDriveType = S

End Function

''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
'
' ShowFileAttr
'
' 目的:
'
' 生成一个字符串,来描述文件或文件夹的属性。
'
' 示范下面的内容
'
' - File.Attributes
' - Folder.Attributes
'
''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''

Function ShowFileAttr(File) ' File 可以是文件或文件夹

Dim S
Dim Attr

Attr = File.Attributes

If Attr = 0 Then
ShowFileAttr = "Normal"
Exit Function
End If

If Attr And FileAttrDirectory Then S = S & "Directory "
If Attr And FileAttrReadOnly Then S = S & "Read-Only "
If Attr And FileAttrHidden Then S = S & "Hidden "
If Attr And FileAttrSystem Then S = S & "System "
If Attr And FileAttrVolume Then S = S & "Volume "
If Attr And FileAttrArchive Then S = S & "Archive "
If Attr And FileAttrAlias Then S = S & "Alias "
If Attr And FileAttrCompressed Then S = S & "Compressed "

ShowFileAttr = S

End Function


''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
'
' GenerateDriveInformation
'
' 目的:
'
' 生成一个字符串,来描述可用驱动器的当前状态。
'
' 示范下面的内容
'
' - FileSystemObject.Drives
' - Iterating the Drives collection
' - Drives.Count
' - Drive.AvailableSpace
' - Drive.DriveLetter
' - Drive.DriveType
' - Drive.FileSystem
' - Drive.FreeSpace
' - Drive.IsReady
' - Drive.Path
' - Drive.SerialNumber
' - Drive.ShareName
' - Drive.TotalSize
' - Drive.VolumeName
'
''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''

回复
dongua 2004-11-24
很多书上就有处理文件的示例呀。应该不难的吧。
回复
cuixiping 2004-11-24
就是用fso啦。可以参考微软的文档。msdn或者vbscript参考(VBSCRIP5.CHM)或者jscript参考(JSCRIPT5.CHM)
回复
xczhouyang 2004-11-24
这是我自己写的几个函数你可以看看,其它fso操作很简单的
回复
xczhouyang 2004-11-24
function delfolder(foldername,folderurl)
'本函数是用于删除文件夹与其子文件
'filename 删除文件夹的名称
'fileurl 删除文件夹所在
path=folderurl&foldername
set fso=server.CreateObject("scripting.filesystemobject")
if Fso.FolderExists(server.mappath(path)) then
set objFolder=fso.GetFolder(server.mappath(path))
set objFiles=objFolder.Files
for each objFile in objFiles
fso.DeleteFile(server.mappath(path&"/"&objFile.name))
next
set objSubFolders=objFolder.Subfolders
for each objSubFolder in objSubFolders
set objFiles=objSubFolder.Files
for each objFile in objFiles
fso.DeleteFile(server.mappath(path&"/"&objSubFolder.name&"/"&objFile.name))
next
delfiles(path&"/"&objSubFolder.name) '递归

next
fso.DeleteFolder(server.mappath(path))
end if
set objFolder=nothing
set objSubFolders=nothing
set fso=nothing
end function
function createfile(filename,fileurl)
'本函数是用于创建文件
'filename 创建文件的名称
'fileurl 创建文件所在目录
fpath=fileurl&"\"&filename
on Error Resume Next
Set fso = CreateObject("Scripting.FileSystemObject")
if err=0 then
if not Fso.fileExists(server.mappath(fpath)) then
Set fldr = fso.GetFile(server.mappath(fpath))
else
createfile="文件已经存在创建失败!"
end if
else
createfile="fso组件没有启动,不能操作文件!"
end if
end function

function delfile(filename,fileurl)
'本函数是用于删除文件
'filename 删除文件的名称
'fileurl 删除文件所在目录
fpath=fileurl&"\"&filename
on Error Resume Next
Set fso = CreateObject("Scripting.FileSystemObject")
if err=0 then
if Fso.fileExists(server.mappath(fpath)) then
Set fldr = fso.DeleteFile(server.mappath(fpath))
else
delfile="文件已经不存在删除失败!"
end if
else
delfile="fso组件没有启动,不能操作文件!"
end if
end function
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lstup 2004-11-24
查找一下FSO的相关教程吧,多的是!
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xczhouyang 2004-11-24
function createfolder(foldername,folderurl)
'本函数是用于创建文件夹
'filename 创建文件夹的名称
'fileurl 创建文件夹所在目录与文件名
fpath=folderurl&"\"&foldername
on Error Resume Next
Set fso = CreateObject("Scripting.FileSystemObject")
if err=0 then
if not Fso.FolderExists(server.mappath(fpath)) then
Set fldr = fso.CreateFolder(server.mappath(fpath))
else
createfolder="文件夹已经存在创建失败!"
end if
else
createfolder="fso组件没有启动,不能操作文件夹!"
end if
end function
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xczhouyang 2004-11-24
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ASP即Active Server Pages,是Microsoft公司开发的服务器端脚本环境。
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