＆＃34; CreateFromDirectory＆＃34;用＆＃34; 4＆＃34;参数：＆＃34;路径不是合法形式。＆＃34;

Question

我正在尝试将一个飞蛾的文件夹压缩到单个文件中。例如，201501适用于jan的所有文件夹，我需要压缩到名为somename-2015-jan.zip的文件。所有其他逻辑只工作zipplig部分显示上述错误。我有powershell v3和net 4.54，当我可以调用System.IO.Compression.ZipFile] :: CreateFromDirectory来压缩文件时出错了。

                  $year = 2015  
              $base = "D:\Archive\"


              $folder = Get-Content "D:\Archive\MasterFolder.txt"
                          #write-host $folder.count total lines read from file
                          foreach ($Fname in $folder)
                          {

                  $yearmonth = Get-Content "D:\Archive\duration.txt"
                                      write-host $yearmonth.count total lines read from file
                                      foreach ($date in $yearmonth)
                  {


            $source = "$base$Fname\$date*"


            #[string]$text = "$date"    

            $string = $date
            #201501
            $mmd = $string.Substring(4,2)
                Write-host "fffcmd $mmd"


            if ($mmd -gt 12) {
                "$mmd is bigger than 12 Which is not valid,Please Correct The file name durations.txt and run the command again"
                 break
                        } 

Else {

write-host " This is Source Folder Name !!!!!!!!!!!!!!!!!!!!$source"
switch($mmd) 
    { 
    "01" {$mm = "jan"
        write-host "New mm is $mm"
}

    "02" {$mm = "Feb"
        write-host "New mm is $mm"
}

   "03" {$mm = "Mar"
        write-host "New mm is $mm"
}
   "04" {$mm = "Apr"
        write-host "New mm is $mm"
}
   "05" {$mm = "May"
        write-host "New mm is $mm"
}
   "06" {$mm = "Jun"
        write-host "New mm is $mm"
}
   "07" {$mm = "Jul"
        write-host "New mm is $mm"
}
   "08" {$mm = "Aug"
        write-host "New mm is $mm"
}
   "09" {$mm = "Sep"
        write-host "New mm is $mm"
}
   "10" {$mm = "Oct"
        write-host "New mm is $mm"
}
   "11" {$mm = "Now"
        write-host "New mm is $mm"
}
   "12" {$mm = "Dec"
        write-host "New mm is $mm"
}
    default
    {
      Write-host "The Month Duration $mmd  is not valid";continue
   }
 }
            $destination = "$base$Fname\$Fname-$year-$mm.zip"
            write-host " Destination $destination"
            Add-Type -assembly "system.io.compression.filesystem"


function ZipFiles( $zipfilename, $sourcedir )   
{
[Reflection.Assembly]::LoadWithPartialName("System.IO.Compression.FileSystem")
 $compressionLevel = [System.IO.Compression.CompressionLevel]::Optimal
[System.IO.Compression.ZipFile]::CreateFromDirectory($sourcedir,
    $zipfilename, $compressionLevel, $false)
}
ZipFiles "$destination", "$source"

                  }

            start-sleep -s 1
                          }

}

看起来提供参数的方式不正确或放在源中的外卡不正确。

Answer 1

CreateFromDirectory不允许使用通配符。请改用Get-ChildItem。

行后

$source = "$base$Fname\$date*"

将匹配的文件传递给foreach循环：

$files = (Get-ChildItem "$base$Fname\$date*")

foreach ($file in $files) {
    # ...
    # Continue with the rest of your code, starting at the line "$string = $date"
    # ...
    ZipFiles $destination, $file.FullName
}

其他一些建议：

1. 将ZipFiles函数定义移到foreach循环之外 - 每次循环运行时都不需要重新定义。
2. 将加载/导入System.IO.Compression.FileSystem移到foreach es之外。
3. 删除整个switch语句，并将其替换为：$mm = [CultureInfo]::CurrentCulture.DateTimeFormat.GetAbbreviatedMonthName($mmd)