問題描述

我正在編寫一個使用帶有憑據(jù)的 ftp 服務(wù)器的程序.我正在嘗試從服務(wù)器檢索目錄列表，但是當(dāng)我到達(dá)線路時:

I'm writing a program that uses an ftp server with credentials. I'm trying to retrieve the directory list from the server but when I get to the line:

string line = reader.ReadLine();

我得到的字符串只包含:無法打開"host:/lib1"."

the string that I get contains only : "Can't open "host:/lib1"."

如果我嘗試獲取另一行，則會引發(fā)下一個異常:遠(yuǎn)程服務(wù)器返回錯誤:(550) 文件不可用(例如，找不到文件，無法訪問).

If I try to get another line, the next exception is thrown: The remote server returned an error: (550) File unavailable (e.g., file not found, no access).

我確信(使用另一個 ftp 應(yīng)用程序)'lib1' 目錄存在于 ftp 服務(wù)器上，并且我的憑據(jù)(用戶名和密碼)是正確的.

I know for sure (using another ftp application) that 'lib1' directory exists on the ftp server and my credentials (username and password) are correct.

這是我的代碼:

 public class FTPClient
{
    public string UserName { get; set; }
    public string Password { get; set; }
    public string IpAddress { get; set; }
    public int Port { get; set; }

    public FTPClient(string _userName, string _password, string _address, int _port)
    {
        UserName = _userName;
        Password = _password;
        IpAddress = _address;
        Port = _port;
    }

    public void GetDirectoriesList(string _path)
    {           
        FtpWebRequest request = (FtpWebRequest)WebRequest.Create(new Uri("ftp://" + 
        IpAddress + _path));
        request.UseBinary = true;
        request.Method = WebRequestMethods.Ftp.ListDirectory;
        request.Credentials = new NetworkCredential(UserName, Password);

        FtpWebResponse response = (FtpWebResponse)request.GetResponse();
        Stream responseStream = response.GetResponseStream();
        StreamReader reader = new StreamReader(responseStream);

        string line = reader.ReadLine();
        while (line!=null)
        {
            ... //do something with line
            line = reader.ReadLine();
        }
        ...
        reader.Close();
        response.Close();


    }

我使用它如下:

FTPClient ftpClient = new FTPClient("user1", "pass1", "192.168.2.110", 21);

        string dirList = ftpClient.GetDirectoriesList("/lib1");

誰能發(fā)現(xiàn)問題?

推薦答案

我的解決方案:

public string[] GetDirectory()
{
    StringBuilder result = new StringBuilder();
    FtpWebRequest requestDir = (FtpWebRequest)WebRequest.Create("ftp://urserverip/");
    requestDir.Method = WebRequestMethods.Ftp.ListDirectory;
    requestDir.Credentials = new NetworkCredential("username", "password");
    FtpWebResponse responseDir = (FtpWebResponse)requestDir.GetResponse();
    StreamReader readerDir  = new StreamReader(responseDir.GetResponseStream());

    string line = readerDir.ReadLine();
    while (line != null)
    {
        result.Append(line);
        result.Append("
");
        line = readerDir.ReadLine();
    }

    result.Remove(result.ToString().LastIndexOf('
'), 1);
    responseDir.Close(); 
    return result.ToString().Split('
');
}

這篇關(guān)于使用憑據(jù)連接 ftp 服務(wù)器的文章就介紹到這了，希望我們推薦的答案對大家有所幫助，也希望大家多多支持html5模板網(wǎng)！