将在线 FTP 目录中的所有文件列出到列表视图 C#

Question

我和其他正在阅读此列表的其他人如何将在线目录中的所有文件列出到列表视图？

这是要列出的本地目录的代码我想知道是否有办法让它连接到 FTP 网站并列出文件？

FolderBrowserDialog folderPicker = new FolderBrowserDialog();
if (folderPicker.ShowDialog() == DialogResult.OK)
{

    ListView1.Items.Clear();

    string[] files = Directory.GetFiles(folderPicker.SelectedPath);
    foreach (string file in files)
    {

        string fileName = Path.GetFileNameWithoutExtension(file);
        ListViewItem item = new ListViewItem(fileName);
        item.Tag = file;

        ListView1.Items.Add(item);

    }

}

我已经使用了这段代码，但我似乎无法让它工作它没有出现错误但它也没有列出网络服务器上的文件？

private void ConnectBtn_Click(object sender, EventArgs e)
    {
        ListDirectory();
    }

    public string[] ListDirectory()
    {
        var list = new List<string>();

        var request = createRequest(TxtServer.Text, WebRequestMethods.Ftp.ListDirectory);

        using (var response = (FtpWebResponse)request.GetResponse())
        {
            using (var stream = response.GetResponseStream())
            {
                using (var reader = new StreamReader(stream, true))
                {
                    while (!reader.EndOfStream)
                    {
                        list.Add(reader.ReadLine());
                    }
                }
            }
        }

        return list.ToArray();
    }

    private FtpWebRequest createRequest(string uri, string method)
    {
        var r = (FtpWebRequest)WebRequest.Create(uri);

        r.Credentials = new NetworkCredential(TxtUsername.Text, TxtPassword.Text);
        r.Method = method;

        return r;
    }

Answer 1

您可以使用this wrapper library。

相关代码为：

    public string[] ListDirectory() {
        var list = new List<string>();

        var request = createRequest(WebRequestMethods.Ftp.ListDirectory);

        using (var response = (FtpWebResponse)request.GetResponse()) {
            using (var stream = response.GetResponseStream()) {
                using (var reader = new StreamReader(stream, true)) {
                    while (!reader.EndOfStream) {
                        list.Add(reader.ReadLine());
                    }
                }
            }
        }

        return list.ToArray();
    }

Answer 2

这是获取 FTP 目录的所有文件和文件夹的好帮手：

public static IEnumerable<string> GetFilesInFtpDirectory(string url, string username, string password)
{
    // Get the object used to communicate with the server.
    var request = (FtpWebRequest)WebRequest.Create(url);
    request.Method = WebRequestMethods.Ftp.ListDirectoryDetails;
    request.Credentials = new NetworkCredential(username,password);

    using (var response = (FtpWebResponse) request.GetResponse())
    {
        using (var responseStream = response.GetResponseStream())
        {
            var reader = new StreamReader(responseStream);
            while (!reader.EndOfStream)
            {
                var line = reader.ReadLine();
                if (string.IsNullOrWhiteSpace(line) == false)
                {
                    yield return line.Split(new[] { ' ', '\t' }).Last();    
                }
            }
        }
    }
}

在这里找到：http://www.snippetsource.net/Snippet/128/get-all-files-of-an-ftp-directory-in-c

Answer 3

我找到了答案，我做了一些试验，现在它在列表视图中显示文件，谢谢罗伯特哈维♦

private void ConnectBtn_Click(object sender, EventArgs e)
    {
        ListDirectory();
    }

    public string[] ListDirectory()
    {
        var list = listView1;

        var request = createRequest(TxtServer.Text, WebRequestMethods.Ftp.ListDirectory);

        using (var response = (FtpWebResponse)request.GetResponse())
        {
            using (var stream = response.GetResponseStream())
            {
                using (var reader = new StreamReader(stream, true))
                {
                    while (!reader.EndOfStream)
                    {
                        list.Items.Add(reader.ReadLine());
                    }
                }
            }
        } List<string> l = new List<string>();
        return l.ToArray();
    }

    private FtpWebRequest createRequest(string uri, string method)
    {
        var r = (FtpWebRequest)WebRequest.Create(uri);

        r.Credentials = new NetworkCredential(TxtUsername.Text, TxtPassword.Text);
        r.Method = method;

        return r;
    }

Answer 4

此代码可用于从 ftp 获取文件列表

private void ftpFileRead()
{
  FtpWebRequest Request = (FtpWebRequest)WebRequest.Create("your ftpAddress");
  Request.Method = WebRequestMethods.Ftp.ListDirectory;     
  Request.Credentials = new NetworkCredential(your ftp username,your ftp password);
  FtpWebResponse Response = (FtpWebResponse)Request.GetResponse();
  Stream ResponseStream = Response.GetResponseStream();
  StreamReader Reader = new StreamReader(ResponseStream);

  ListBox1.Items.Add(Response.WelcomeMessage);
  while (!Reader.EndOfStream)//Read file name   
  {
    ListBox1.Items.Add(Reader.ReadLine().ToString());
  }
  Response.Close();
  ResponseStream.Close();
  Reader.Close();
}

Answer 5

你可以使用这个方法。

    public static string[] GetFiles(string path, NetworkCredential Credentials, SearchOption searchOption)
    {
        var request = (FtpWebRequest)WebRequest.Create(path);
        request.Method = WebRequestMethods.Ftp.ListDirectoryDetails;
        request.Credentials = Credentials;
        List<string> files = new List<string>();
        using (var response = (FtpWebResponse)request.GetResponse())
        {
            using (var responseStream = response.GetResponseStream())
            {
                var reader = new System.IO.StreamReader(responseStream);
                while (!reader.EndOfStream)
                {
                    var line = reader.ReadLine();
                    if (string.IsNullOrWhiteSpace(line) == false)
                    {
                        if (!line.Contains("<DIR>"))
                        {
                            string[] details = line.Split(new string[] { " " }, StringSplitOptions.RemoveEmptyEntries);
                            string file = line.Replace(details[0], "")
                                .Replace(details[1], "")
                                .Replace(details[2], "")
                                .Trim();
                            files.Add(file);
                        }
                        else
                        {
                            if (searchOption == SearchOption.AllDirectories)
                            {
                                string dirName = line.Split(
                                        new string[] { "<DIR>" },
                                        StringSplitOptions.RemoveEmptyEntries
                                        ).Last().Trim();
                                string dirFullName = String.Format("{0}/{1}", path.Trim('/'), dirName);
                                files.AddRange(GetFiles(dirFullName, Credentials, searchOption));
                            }
                        }
                    }
                }
            }
        }
        return files.ToArray();
    }