Question

我尝试在网络共享上创建一个监视文件夹，只需将文件大小（300mb-20gb）复制到目标文件夹即可。 FileSystemWatcher和订阅适用于小文件（即1-3kb）。但是，较大的文件不会复制。我确实看到在详细流中触发了副本，但没有文件被复制到目标文件夹。

 $Folder = "\\10.11.233.91\vol_tx01\delivered_media"
 $Filter = "*.mxf"
 $destination = "C:\Users\Leeds TX 11\Desktop\support\Testy"
 $Watcher = New-Object IO.FileSystemWatcher $Folder, $Filter -Property @{
     NotifyFilter = [IO.NotifyFilters]'Filename, LastAccess'
 }

 $onCreated = Register-ObjectEvent $Watcher Created -SourceIdentifier `
 FileCreated -Action {
     $path = $event.SourceEventArgs.FullPath
     $name = $event.SourceEventArgs.Name
     $ChangeType = $event.SourceEventargs.ChangeType
     $Timestamp = $event.TimeGenerated
     Write-Host "The file '$name' was $ChangeType at $Timestamp"
     Copy-Item $path -Destination $destination -Force -Recurse -Verbose
 }

Answer 1

问题的组合就在眼前。首先感谢JohnLBevan指出LastWrite应该是要使用的notifyfilter。还发现在这种情况下，copy-item不会等待源目录中的文件传输关闭。我通过放入一个等待文件锁定的while循环来解决这个问题：

 ##################### DANGER BOX ####################################

    $Folder = "C:\Users\Leeds TX 12\Desktop\Source" #Source dir
    $Filter = "*.mxf" # MXF Filter
    $destination = "C:\Users\Leeds TX 12\Desktop\Destination" # Destination dir



################### Watch for file system events###########################

$Watcher = New-Object IO.FilesystemWatcher $Folder, $Filter -Property @{
NotifyFilter = [IO.NotifyFilters]'LastWrite, Filename'
}

################### Register filesystemwatcher & subscribe to notifyfilters ################# 

$onCreated = Register-ObjectEvent $Watcher Created -SourceIdentifier filecreated -Action {
$path = $event.SourceEventArgs.FullPath
$name = $Event.SourceEventArgs.Name
$ChangeType = $Event.SourceEventargs.ChangeType
$Timestamp = $event.TimeGenerated
write-host "The file '$name' was $ChangeType at $Timestamp" # Debug

################# Wait for file lock collapse #########################################

while($True)
{
Try {
      [IO.File]::OpenWrite($path).Close()
      Break
      }
   Catch { Start-Sleep -Seconds 1}
   }

#################### Copy item #############################

Copy-item $path -Destination $Destination -force -Recurse -Verbose}

Copy-Item不适用于FileSystemWatcher

1 个答案: