奇尔卡特连接异常在C＃

Question

我在奇尔卡特例外

calling ConnectSocket2 
    IPV6 enabled connect with NO heartbeat. 
    Cannot connect, hostname is zero length 
    ConnectFailReason: 1 
    Failed to connect to FTP server. 
    Failed. --ConnectOnly_Ftp2 
--ChilkatLog 

我试图使用奇尔卡特的FTP2类（使用C＃）来连接到FTP服务器获取以下信息，使用Connect方法。

以下是我的类我使用与FTP2

public class FTPClient 
    {   
    private Ftp2 m_FtpInfo; 

    const int FTP_DEFAULT_PORT = 21; 

    public FTPClient() 
    { 
     m_FtpInfo = null; 
    } 

    public FTPClient(string userName, string password, string hostName, int port) 
    { 
     m_FtpInfo = new Ftp2(); 
     m_FtpInfo.Account = userName; 
     m_FtpInfo.ClientIpAddress = hostName; 
     m_FtpInfo.Password = password; 
     //m_FtpInfo.Port = port; 
    } 

    public Ftp2 FTPInfo 
    { 
     get 
     { 
      if (m_FtpInfo == null) 
       m_FtpInfo = new Ftp2(); 
      return m_FtpInfo; 
     } 
     set { m_FtpInfo = value; } 
    } 

    public void Connect() 
    { 
     lock (this) 
     { 
      if (m_FtpInfo == null) 
      { 
       m_FtpInfo = new Ftp2(); 
      } 

      AppConfiguration appConfiguration = AppConfiguration.Instance; 
      /* 
      * Steps to connect to FTP site using Chilkat 
      * 1. Unlock the component by passing the code provided by Chilkat 
      * 2. Connect to the Site by specifying the hostname and port 
      */ 

      // Unlock the component. 
      if (!m_FtpInfo.UnlockComponent("AnythingWorksFor30DayTrial")) 
      { 
       throw new FTPConnectionExceptions(CommunicationError.UnlockFailed, m_FtpInfo.LastErrorText); 
      } 


      // Connect to the FTP server. (use a domain name or IP address)    
      if (!m_FtpInfo.Connect()) 
      { 
       throw new FTPConnectionExceptions(CommunicationError.ConnectionFailed, m_FtpInfo.LastErrorText); 
      } 
     } 
    } 

    public void DisposeConnection() 
    { 
     lock (this) 
     { 
      if (m_FtpInfo == null) return; 

      if (m_FtpInfo.IsConnected) 
       m_FtpInfo.Disconnect(); 

      m_FtpInfo = null; 
     } 
    } 

连接谁能告诉我在哪里去了？

Answer 1

该线路m_FtpInfo.ClientIpAddress = hostName;不是必需的。没有设置要连接的实际主机。

编辑：

奇尔卡特示例页面将主机名设置是这样的：

ftp.Hostname = "ftp.chilkatsoft.com"; 

因此，而不是设置端ClientIPAddress（本地计算机的IP），使用主机名。

编辑2：

试试这个：

public FTPClient(string userName, string password, string hostName, int port) 
{ 
    m_FtpInfo = new Ftp2(); 
    m_FtpInfo.Account = userName; 
    m_FtpInfo.Hostname = hostName; 
    m_FtpInfo.Password = password; 
    //m_FtpInfo.Port = port; 
}