c# - 压缩目录并上传到 FTP 服务器，而无需在 C# 中本地保存 .zip 文件

Question

我的问题是标题。我试过这个:

public void UploadToFtp(List<strucProduktdaten> ProductData)
{
    ProductData.ForEach(delegate( strucProduktdaten data )
    {
        ZipFile.CreateFromDirectory(data.Quellpfad, data.Zielpfad, CompressionLevel.Fastest, true);
    });
}


static void Main(string[] args)
{
    List<strucProduktdaten> ProductDataList = new List<strucProduktdaten>();
    strucProduktdaten ProduktData = new strucProduktdaten();
    ProduktData.Quellpfad = @"Path\to\zip";
    ProduktData.Zielpfad = @"Link to the ftp"; // <- i know the link makes no sense without a connect to the ftp with uname and password

    ProductDataList.Add(ProduktData);

    ftpClient.UploadToFtp(ProductDataList);
}

错误:

System.NotSupportedException:"The Path format is not supported."

我不知道在这种情况下我应该如何连接到 FTP 服务器并将目录压缩到 ram 中并将其直接发送到服务器。

...有人可以提供帮助或链接到已解决的类似或同等问题吗？

Answer 1

在 MemoryStream 中创建 ZIP 存档并上传。

using (Stream memoryStream = new MemoryStream())
{
    using (var archive = new ZipArchive(memoryStream, ZipArchiveMode.Create, true))
    {
        foreach (string path in Directory.EnumerateFiles(@"C:\source\directory"))
        {
            ZipArchiveEntry entry = archive.CreateEntry(Path.GetFileName(path));

            using (Stream entryStream = entry.Open())
            using (Stream fileStream = File.OpenRead(path))
            {
                fileStream.CopyTo(entryStream);
            }
        }
    }

    memoryStream.Seek(0, SeekOrigin.Begin);

    var request =
        WebRequest.Create("ftp://ftp.example.com/remote/path/archive.zip");
    request.Credentials = new NetworkCredential("username", "password");
    request.Method = WebRequestMethods.Ftp.UploadFile;
    using (Stream ftpStream = request.GetRequestStream())
    {
        memoryStream.CopyTo(ftpStream);
    }
}

不幸的是，ZipArchive 需要一个可搜索的流。否则，您将能够直接写入 FTP 请求流，而无需将整个 ZIP 文件保存在内存中。

---

基于:

• Creating a ZIP archive in memory using System.IO.Compression
• Upload a file to an FTP server from a string or stream