Question

我正在尝试将文件夹的内容归档到zip文件中。该内容大部分是大图像。我正在尝试使用以下代码进行此操作：

var folderPicker =
      new Windows.Storage.Pickers.FolderPicker();
folderPicker.SuggestedStartLocation =
      Windows.Storage.Pickers.PickerLocationId.Desktop;
folderPicker.FileTypeFilter.Add("*");
StorageFolder folder = await folderPicker.PickSingleFolderAsync();
if (folder != null)
  {
    StorageFile zipFile = await folder.CreateFileAsync(ThemeName.Text + ".zip",
        Windows.Storage.CreationCollisionOption.GenerateUniqueName);
    Stream themeZipFile = await zipFile.OpenStreamForWriteAsync();
    ZipArchive archive = new ZipArchive(themeZipFile);
    StorageFolder localFolder = ApplicationData.Current.LocalFolder;
    StorageFolder temp = await localFolder.GetFolderAsync("Temp");
    var files = await temp.GetFilesAsync();
    foreach (var item in files)
      {
        archive.CreateEntryFromFile(item.Path, item.Name);
      }
   }

但是，在执行时，我收到一个错误：

IOException：无法找到负的绝对流位置。

现在，当我尝试此代码时：

StorageFolder localFolder = ApplicationData.Current.LocalFolder;
var folderPicker = new Windows.Storage.Pickers.FolderPicker();
folderPicker.SuggestedStartLocation = Windows.Storage.Pickers.PickerLocationId.Desktop;
folderPicker.FileTypeFilter.Add("*");
StorageFolder folder = 
    await folderPicker.PickSingleFolderAsync();
if (folder != null)
  {
    StorageFile zipFile =
        await folder.CreateFileAsync(ThemeName.Text + ".zip", Windows.Storage.CreationCollisionOption.GenerateUniqueName);
    await Task.Run(() => ZipFile.CreateFromDirectory(localFolder.Path, zipFile.Path));
  }

我知道对我选择的任何文件夹的访问均被拒绝！我该如何解决将几个较大的文件合并到一个存档中的问题？

Answer 1

使用此方法，您可以从源目录开始创建ZIP文件。这是Microsoft的一些文档：ZIPFile.CreateFromDirectory

您可以在以下命名空间中找到提到的类和方法：System.IO.Compression

Answer 2

如果创建一个临时文件夹来归档整个文件夹，那么您可以尝试以下方法：

using System.IO.Compression;

var files = System.IO.Directory.EnumerateFiles(string PATH, ".jpeg", System.IO.SearchOption.AllDirectories)

 foreach (var file in files)
   {
   File.Copy(file, tempPath + @"\" + System.IO.Path.GetFileName(file));
   }

ZipFile.CreateFromDirectory(tempPath, zipPath, CompressionLevel.Fastest, true);

Directory.Delete(tempPath, true); //delete tempfolder after compress commplete

Answer 3

如何在一个ZIP文件中归档多个文件？

scatter_update()方法将使用第二个CreateFromDirectory创建zip文件参数。因此，您无需提前创建zip文件。您可以使用以下代码直接压缩文件夹。

destinationArchiveFileName

如何在一个ZIP文件中归档多个文件？

3 个答案: