[英]When reading a txt file with VBScript, why do we use Const conForReading?
[英]Why do we need generate a temporary file when remote uploading to FTP?
我对此感到很困惑,我试图通过VBS脚本将数据上传到FTP,并且它对于单个文件文件可以正常工作,但是当我在循环中添加脚本时不能上传多个文件。
另外,为什么远程上传到FTP时我们需要生成一个临时文件,
我是说这个
这是我正在使用的脚本,
Dim fso, folder, files, strPath
Set fso = CreateObject("Scripting.FileSystemObject")
strPath = "E:/Test"
Set folder = fso.GetFolder(strPath)
Set files = folder.Files
Const hostname = "ftp.domain.com"
Const port = 21
Const username = "username"
Const password = "password"
Const remoteDir = "/"
Const useDefaultsExclusively = True
Const skipConfirmation = True
For each item In files
If InStr(1, item.Name, "txt") <> 0 Then
defaultFile = item.Name
localFile = fso.getFileName(defaultFile)
localDir = fso.getParentFolderName(defaultFile)
Set shell = CreateObject("WScript.Shell")
tempDir = shell.ExpandEnvironmentStrings("%TEMP%")
' temporary script file supplied to Windows FTP client
scriptFile = tempDir & "\" & fso.GetTempName
' temporary file to store standard output from Windows FTP client
outputFile = tempDir & "\" & fso.GetTempName
'input script
script = script & "lcd " & """" & localDir & """" & vbCRLF
script = script & "open " & hostname & " " & port & vbCRLF
script = script & "user " & username & vbCRLF
script = script & password & vbCRLF
script = script & "cd " & """" & remoteDir & """" & vbCRLF
script = script & "binary" & vbCRLF
script = script & "prompt n" & vbCRLF
script = script & "put " & """" & localFile & """" & vbCRLF
script = script & "quit" & vbCRLF
Set textFile = fso.CreateTextFile(scriptFile, True)
textFile.WriteLine(script)
' bWaitOnReturn set to TRUE - indicating script should wait for the program
' to finish executing before continuing to the next statement
shell.Run "%comspec% /c FTP -n -s:" & scriptFile & " > " & outputFile, 0, TRUE
Wscript.Sleep 10
' open standard output temp file read only, failing if not present
Set textFile = fso.OpenTextFile(outputFile, 1, 0, -2)
results = textFile.ReadAll
textFile.Close
End If
Next
fso.DeleteFile(scriptFile)
fso.DeleteFile(outputFile)
为什么我们使用以下代码创建临时文件:S
Set shell = CreateObject("WScript.Shell")
tempDir = shell.ExpandEnvironmentStrings("%TEMP%")
' temporary script file supplied to Windows FTP client
scriptFile = tempDir & "\" & fso.GetTempName
' temporary file to store standard output from Windows FTP client
outputFile = tempDir & "\" & fso.GetTempName
Set textFile = fso.CreateTextFile(scriptFile, True)
textFile.WriteLine(script)
' bWaitOnReturn set to TRUE - indicating script should wait for the program
' to finish executing before continuing to the next statement
shell.Run "%comspec% /c FTP -n -s:" & scriptFile & " > " & outputFile, 0, TRUE
Wscript.Sleep 10
' open standard output temp file read only, failing if not present
Set textFile = fso.OpenTextFile(outputFile, 1, 0, -2)
results = textFile.ReadAll
textFile.Close
尽管我遍历该脚本,但它必须上载当前目录中的每个txt文件,但只上载第一个,为什么呢?
当我打印当前文件即
MsgBox defaultfile
它显示当前文件夹中每个txt文件的名称,但仅上传第一个文件。
没有用于FTP的实时自动化本机方法。 这实际上是脚本解决方法。 您的脚本正在使用FTP指令创建文本文件。 然后,它使用-s开关从命令行启动FTP。 使用-s开关,您可以提供一个包含会话命令的文本文件,以便FTP.exe在关闭前执行。 因此,尽管您的脚本实际上并未直接直接使FTP程序自动化,但它通过在“无人参与模式”下运行FTP来模拟自动化。 通过打开命令提示符并键入ftp /,可以更好地理解。 。
[编辑]对不起,我想念您的第二个问题。 您的脚本仅上传第一个文件,因为它在CreateTextFile方法周围循环。 第一次尝试后此方法失败,因为该文件已存在。 您真正应该做的是将文件添加到临时文件中,然后仅执行一次FTP。 您的Web服务器也将不胜感激。
Dim fso, folder, files, strPath
Set fso = CreateObject("Scripting.FileSystemObject")
strPath = "E:/Test"
Set folder = fso.GetFolder(strPath)
Set files = folder.Files
Const hostname = "ftp.domain.com"
Const port = 21
Const username = "username"
Const password = "password"
Const remoteDir = "/"
Const useDefaultsExclusively = True
Const skipConfirmation = True
tempDir = shell.ExpandEnvironmentStrings("%TEMP%")
' temporary script file supplied to Windows FTP client
scriptFile = tempDir & "\" & fso.GetTempName
' temporary file to store standard output from Windows FTP client
outputFile = tempDir & "\" & fso.GetTempName
Set textFile = fso.CreateTextFile(scriptFile, True)
'input script
textFile.WriteLine("open " & hostname & " " & port)
textFile.WriteLine("user " & username)
textFile.WriteLine(password)
textFile.WriteLine("cd " & Chr(34) & remoteDir & Chr(34))
textFile.WriteLine("binary")
textFile.WriteLine("prompt n")
For Each item In files
If InStr(1, item.Name, "txt") <> 0 Then
textFile.WriteLine("put " & Chr(34) & item.Path & "\" & item.Name & Chr(34))
End If
Next
textFile.WriteLine("quit")
textFile.Close
Set shell = CreateObject("WScript.Shell")
' bWaitOnReturn set to TRUE - indicating script should wait for the program
' to finish executing before continuing to the next statement
shell.Run "%comspec% /c FTP -n -s:" & scriptFile & " > " & outputFile, 0, True
WScript.Sleep 10
' open standard output temp file read only, failing if not present
Set textFile = fso.OpenTextFile(outputFile, 1, 0, -2)
results = textFile.ReadAll
textFile.Close
fso.DeleteFile(scriptFile)
fso.DeleteFile(outputFile)
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