如何将字节数组转换为zip文件在c＃中？

Question

我有一个数据库中的ziparchive字节数组。当我从数据库检索数据并尝试将其转换回Ziparchive时，它会引发错误。有什么办法从字节数组转换为zipArchive？

Answer 1

从这个answer我认为这是可能你的流字节数组转换为zip压缩包：

using (var compressedFileStream = new MemoryStream()) { 
    //Create an archive and store the stream in memory. 
    using (var zipArchive = new ZipArchive(compressedFileStream, ZipArchiveMode.Update, false)) { 
     foreach (var caseAttachmentModel in caseAttachmentModels) { 
      //Create a zip entry for each attachment 
      var zipEntry = zipArchive.CreateEntry(caseAttachmentModel.Name); 

      //Get the stream of the attachment 
      using (var originalFileStream = new MemoryStream(caseAttachmentModel.Body)) { 
       using (var zipEntryStream = zipEntry.Open()) { 
        //Copy the attachment stream to the zip entry stream 
        originalFileStream.CopyTo(zipEntryStream); 
       } 
      } 
     } 

    } 

    return new FileContentResult(compressedFileStream.ToArray(), "application/zip") { FileDownloadName = "Filename.zip" }; 
} 

这里，用线new FileContentResult(compressedFileStream.ToArray(), "application/zip") { FileDownloadName = "Filename.zip" };，如果你已经转换成zip文件，那么你可以将您的流字节数组到这样的zip存档：

new FileContentResult(your_stream_byte_array, "application/zip") { FileDownloadName = "Filename.zip" };