Question

我和其他正在阅读此列表的人如何列出从在线目录到列表视图的所有文件？

这是要列出的本地目录的代码我想知道是否有办法使它连接到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);

    }

}

我已经使用过这段代码，但我似乎无法让它工作，因为它没有出现错误，但它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。

相关代码是：

    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();    
                }
            }
        }
    }
}

在此处找到：http://www.snippetsource.net/Snippet/128/get-all-files-of-an-ftp-directory-in-c

Answer 3

我找到了答案，我做了一些实验，现在它在列表视图中显示文件，谢谢Robert Harvey♦

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

您可以使用此方法。

    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();
    }

列出从在线FTP目录到列表视图C＃的所有文件

5 个答案: