我需要有关WinZip命令行的帮助。我目前有一个命令行，它运行良好，但如果文件夹超过4GB，就会崩溃。我有超过100MB的非常大的Tiffs文件。我想在文件达到2GB时将其拆分。
这是我的代码
Private Sub btnStart_Click(sender As Object, e As EventArgs) Handles btnStart.Click
deleteCount = 0
Dim i, x As Integer
Dim reNamedTo As String
Dim newFileURL, newFolderURL As String
Dim folderInfo As New System.Text.StringBuilder()
Dim processedNumberCount As Integer = 0
Dim numberOfErrors As Integer = 0
Dim fileSucessfullyDone As Integer
' cboPattern.SelectedIndex = 0
btnList_Click(sender, e)
For i = 0 To ListBoxFoldersToBeDone.Items.Count - 1
newFolderURL = ListBoxFoldersToBeDone.Items(i).ToString
Try
'must download winZip command line 32 / 64 bit depending on the verion of winZip u have
Dim dirInfo As New System.IO.DirectoryInfo(newFolderURL)
Dim folderName As String = (dirInfo.Name)
reNamedTo = newFolderURL & "" & folderName & ".zip"
lblFolderBeingDone.Text = reNamedTo
psiProcess.FileName = "C:Program FilesWinzipwzzip.exe"
psiProcess.WorkingDirectory = newFolderURL
psiProcess.WindowStyle = ProcessWindowStyle.Minimized
psiProcess.ErrorDialog = False
psiProcess.CreateNoWindow = True
' psiProcess.Arguments = ("" & " -a -p -r -m """ & reNamedTo & """ *.tif")
psiProcess.Arguments = ("" & " -a -p -r """ & reNamedTo & """ *.tif")
udtProc = Process.Start(psiProcess)
udtProc.WaitForExit()
'lblDeletingFiles.Text = reNamedTo
processedNumberCount = processedNumberCount + 1
lblCountItemsDone.Text = processedNumberCount.ToString
pBar1.Value = processedNumberCount
initStatusBar(processedNumberCount)
listBoxFoldersDone.Items.Add(reNamedTo)
deleteAfterZip(newFolderURL)
Catch ex As Exception
numberOfErrors = numberOfErrors + 1
listBoxErrorFolders.Items.Add(reNamedTo)
End Try
Next
udtProc.Close()
listBoxFiles.Items.Clear()
Dim title As String = "TIFF Files Zip Completed"
Dim msg As String = "Process Complete , " & processedNumberCount & " files processed successfully. " & numberOfErrors.ToString & " error(s) encountered"
MessageBox.Show(msg, title)
lblFolderBeingDone.Text = "-"
End Sub
您愿意接受完全不使用WinZip的其他解决方案吗？.Net运行时实际上内置了压缩功能，最近的版本使我们更容易使用它。
要使下面的代码工作，您需要有.Net 4.5，并且需要在项目中添加对System.IO.Compression和System.IO.Compression.FileSystem的引用。它遍历给定的文件夹，将文件添加到zip文件中，并在达到最大字节阈值时创建新的zip文件。此代码唯一的缺点是，最大字节阈值是根据未压缩的文件长度计算的，因为压缩的大小要到以后才能知道。但是，根据您的需求，这应该是一个问题。
代码的注释有望解释一切。有两种方法，一种是使用不想压缩的可选文件扩展名数组。要使用代码将您的桌面压缩到"我的文档"文件夹中的一个文件夹，使用50MB的字节阈值，您只需执行以下操作：
Dim FolderToCompress = Environment.GetFolderPath(Environment.SpecialFolder.Desktop)
Dim FolderToSaveZipTo = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments), "ZIPs")
CompressFolder(FolderToCompress, FolderToSaveZipTo, "MyArchive", 1024 * 1024 * 50)
这是代码：
''' <summary>
''' Compress a given folder splitting the zip files based on a supplied maximum uncompressed file length.
''' </summary>
''' <param name="folderToCompress">The folder to compress.</param>
''' <param name="folderToSaveZipFilesTo">The folder to save the compress files to.</param>
''' <param name="zipFileNameWithoutExtension">The file excluding the .zip extension to save to.</param>
''' <param name="maximumBytesToCompressPerFile">The maximum number of uncompress bytes that will be put into each zip file.</param>
''' <param name="fileExtensionsNotToCompress">An array of file extensions, including the leading period, to store only and not compress.</param>
Public Shared Sub CompressFolder(
folderToCompress As String,
folderToSaveZipFilesTo As String,
zipFileNameWithoutExtension As String,
maximumBytesToCompressPerFile As Long,
fileExtensionsNotToCompress() As String
)
''Create the directory if it doesn't exist already
Directory.CreateDirectory(folderToSaveZipFilesTo)
''Create a formattable string that increments an index each time
Dim FileNameFormatForZip = zipFileNameWithoutExtension & "_{0}.zip"
Dim CurrentZipFileIndex = 0
''The total amount of uncompressed files process so far
Dim CurrentUncompressedBytesProcessedSoFar As Long = 0
''Objects that we'll init below
Dim FileStreamForZip As Stream = Nothing
Dim Zip As ZipArchive = Nothing
''Loop through each file in the given directory including all child directories
For Each FI In Directory.EnumerateFiles(folderToCompress, "*.*", SearchOption.AllDirectories)
''Get the local file name relative to the parent directory
Dim LocalName = FI.Replace(folderToCompress, "").TrimStart(""c)
''If we don't currently have a stream created, create one
If FileStreamForZip Is Nothing Then
Dim FileToSaveZipTo = Path.Combine(folderToSaveZipFilesTo, String.Format(FileNameFormatForZip, CurrentZipFileIndex))
FileStreamForZip = New FileStream(FileToSaveZipTo, FileMode.Create, FileAccess.Write, FileShare.None)
Zip = New ZipArchive(FileStreamForZip, ZipArchiveMode.Create)
End If
''Set a default compression level
Dim CompressionLevel = System.IO.Compression.CompressionLevel.Optimal
''However, if the current file extension is on our do not compress list then only set it to store
If fileExtensionsNotToCompress.Contains(New System.IO.FileInfo(FI).Extension) Then
CompressionLevel = Compression.CompressionLevel.NoCompression
End If
''Create our zip entry
Dim ZE = Zip.CreateEntry(LocalName, CompressionLevel)
''Add our file's contents to the entry
Using ZipStream = ZE.Open()
Using FileStream = File.Open(FI, FileMode.Open, FileAccess.Read, FileShare.Read)
FileStream.CopyTo(ZipStream)
End Using
End Using
''Increment our file byte counter by the uncompressed file's original size
''Unfortunately we can't use the ZE.CompressedLength because that is only available
''during the reading of a ZIP file
CurrentUncompressedBytesProcessedSoFar += New System.IO.FileInfo(FI).Length
''If we're over the threshold for maximum bytes
If CurrentUncompressedBytesProcessedSoFar >= maximumBytesToCompressPerFile Then
''Clean up and dispose of our objects
Zip.Dispose()
Zip = Nothing
FileStreamForZip.Dispose()
FileStreamForZip = Nothing
''Reset our counter
CurrentUncompressedBytesProcessedSoFar = 0
''Increment the current file index
CurrentZipFileIndex += 1
End If
Next
''Clean up
If Zip IsNot Nothing Then
Zip.Dispose()
Zip = Nothing
End If
If FileStreamForZip IsNot Nothing Then
FileStreamForZip.Dispose()
FileStreamForZip = Nothing
End If
End Sub
''' <summary>
''' Compress a given folder splitting the zip files based on a supplied maximum uncompressed file length.
''' </summary>
''' <param name="folderToCompress">The folder to compress.</param>
''' <param name="folderToSaveZipFilesTo">The folder to save the compress files to.</param>
''' <param name="zipFileNameWithoutExtension">The file excluding the .zip extension to save to.</param>
''' <param name="maximumBytesToCompressPerFile">The maximum number of uncompress bytes that will be put into each zip file.</param>
Public Shared Sub CompressFolder(folderToCompress As String, folderToSaveZipFilesTo As String, zipFileNameWithoutExtension As String, maximumBytesToCompressPerFile As Long )
CompressFolder(folderToCompress, folderToSaveZipFilesTo, zipFileNameWithoutExtension, maximumBytesToCompressPerFile, {".zip", ".mp4", ".wmv"})
End Sub