我想使用VBScript监视驱动器的文件更改。我有以下代码。它适用于InstanceCreationEvent
和InstanceDeletionEvent
。但InstanceModificationEvent
没有发生。通过Google搜索我知道我们需要使用CIM_DataFile
代替CIM_DirectoryContainsFile
来监控InstanceModificationEvent
。我不知道如何修改代码。任何人都可以提供帮助。
仅供参考:一个脚本应该监视驱动器中的所有文件夹和子文件夹。
PS:任何改进代码和性能或其他想法的建议也欢迎。
我的代码:
Dim arrFolders
Dim strComputer
Dim objWMIService
Dim strFolder
Dim strCommand
Dim i
Dim strQuery
strChangeFile = "MonitorFolder_Log.txt"
strMailIDFile = "MonitorFolder_MailIDs.txt"
'Check if the log file exists, if not ceate a new file and exit the script. Restart the script again.
Set oFSO = CreateObject("Scripting.FileSystemObject")
If not oFSO.FileExists(strChangeFile) then
'WScript.Echo "Change Log File Not Found. Creating new file..."
Set oTxtFile = oFSO.CreateTextFile(strChangeFile)
WScript.Echo strChangeFile & " File Created." & vbCrLf & "Please restart the script." & vbCrLf
WScript.Quit
End If
'Prompt for which drive should be monitored. If not a valid drive, then exit the script.
strDrive = InputBox("Enter the drive to monitor: " & vbCrLf & "E.g.: Input C to monitor C:\ drive.", "Monitor Folder - Oracle", "E")
If strDrive = "" then
WScript.Echo "Not a valid drive. Terminating the script."
WScript.Quit
End If
'Append ":" with the drive name.
strDrive = strDrive & ":"
'Read the mail IDs.
Set objFSOMailID = CreateObject("Scripting.FileSystemObject")
Set oTSMailID = objFSOMailID.OpenTextFile(strMailIDFile)
strMailIDsList = oTSMailID.ReadAll
oTSMailID.close
'WScript.Echo strMailIDsList
'Array to store the existing folder paths that should be monitored.
arrFolders = Array()
i = 0
Set FSO = CreateObject("Scripting.FileSystemObject")
ShowSubfolders FSO.GetFolder(strDrive)
Sub ShowSubFolders(Folder)
For Each Subfolder in Folder.SubFolders
i = i + 1
folderPath = "" & Subfolder.Path & ""
folderPath = Replace(folderPath ,"\","\\\\")
ReDim Preserve arrFolders(i)
arrFolders(i) = folderPath
'Wscript.Echo i & " " & arrFolders(i)
ShowSubFolders Subfolder
Next
End Sub
'Set the first path to be the drive.
arrFolders(0) = strDrive & "\\\\"
'Use WMI query to get the file changes.
strComputer = "."
Set objWMIService = GetObject("winmgmts:\\" & strComputer & "\root\CIMV2")
'Loop throught the array of folders setting up the monitor for Each
i = 0
For Each strFolder In arrFolders
'Create the event sink
'WScript.Echo "setup for folder: " & strFolder & vbLf
strCommand = "Set EventSink" & i & " = WScript.CreateObject" & "(""WbemScripting.SWbemSink"", ""SINK" & i & "_"")"
ExecuteGlobal strCommand
'Setup Notification
strQuery = "SELECT * " _
& "FROM __InstanceOperationEvent " _
& "WITHIN 1 " _
& "WHERE Targetinstance ISA 'CIM_DirectoryContainsFile'" _
& " AND TargetInstance.GroupComponent = " & "'Win32_Directory.Name=""" & strFolder & """'"
strCommand = "objWMIservice.ExecNotificationQueryAsync EventSink" & i & ", strQuery"
ExecuteGlobal strCommand
'Create the OnObjectReady Sub
strCommand = "Sub SINK" & i & "_OnObjectReady(objObject, " & "objAsyncContext)" & vbLf _
& " 'Wscript.Echo objObject.TargetInstance.PartComponent" & vbLf _
& " SendNotification(objObject)" & vbLf _
& "End Sub"
'WScript.Echo strCommand
ExecuteGlobal strCommand
i = i + 1
Next
'Wait for events.
WScript.Echo "Waiting for events..."
i = 0
While (True)
Wscript.Sleep(1000)
Wend
Function SendNotification(objObject)
strEventType = objObject.Path_.Class
strPartComp = Split(objObject.TargetInstance.PartComponent, "=")
strFileName = Replace(strPartComp(1), "\\", "\")
WScript.Echo strEventType
WScript.Echo strFileName
'Some more code to send mail and logs...
End Function
答案 0 :(得分:2)
监视整个文件系统以进行文件创建是不可行的。它会耗尽系统资源,并可能严重影响系统运行。只监视选定的文件夹。以下应该有效:
Const Interval = 1
Set monitor = CreateMonitor("C:\foo")
Do
Set evt = monitor.NextEvent()
Select Case evt.Path_.Class
Case "__InstanceCreationEvent" : SendNotification evt.TargetInstance
Case "__InstanceModificationEvent" : ...
Case "__InstanceDeletionEvent" : ...
End Select
Loop
Function CreateMonitor(path)
Set wmi = GetObject("winmgmts://./root/cimv2")
Set fso = CreateObject("Scripting.FileSystemObject")
path = Split(fso.GetAbsolutePathName(path), ":")
drv = path(0) & ":"
dir = Replace(path(1), "\", "\\")
If Right(dir, 2) <> "\\" Then dir = dir & "\\"
query = "SELECT * FROM __InstanceOperationEvent" & _
" WITHIN " & Interval & _
" WHERE Targetinstance ISA 'CIM_DataFile'" & _
" AND TargetInstance.Drive='" & drv & "'" & _
" AND TargetInstance.Path='" & dir & "'"
Set CreateMonitor = wmi.ExecNotificationQuery(query)
End Function
Sub SendNotification(tgtInst)
'send notification
End Sub
您应该将不同文件夹的监视器作为单独的进程运行,因为NextEvent()
是阻塞操作。