从FTP服务器下载文件时出现问题

时间:2018-01-21 00:47:18

标签: c# ftp

每当我尝试从此ftp服务器下载文件时,都会收到此错误:

System.Net.WebException: 'The remote server returned an error: 227 Entering Passive Mode (37,60,247,183,135,216)

public static main(string[] args){

    FtpWebRequest ftpRequest = null;
    FtpWebResponse ftpResponse = null;
    ftpRequest = (FtpWebRequest)FtpWebRequest.Create("ftp://ftp.autoherosrpg.com/hash.xml");
    ftpRequest.Credentials = new NetworkCredential("game@autoherosrpg.com", "*********");
    ftpRequest.UseBinary = true;
    ftpRequest.UsePassive = true;
    ftpRequest.KeepAlive = false;
    ftpRequest.Method = WebRequestMethods.Ftp.DownloadFile;
    ftpResponse = (FtpWebResponse) ftpRequest.GetResponse();
}

但即使我将'UsePassive'切换为false,我也会得到:

public static main(string[] args){

    FtpWebRequest ftpRequest = null;
    FtpWebResponse ftpResponse = null;
    ftpRequest = (FtpWebRequest)FtpWebRequest.Create("ftp://ftp.autoherosrpg.com/hash.xml");
    ftpRequest.Credentials = new NetworkCredential("game@autoherosrpg.com", "*********");
    ftpRequest.UseBinary = true;
    ftpRequest.UsePassive = false;
    ftpRequest.KeepAlive = false;
    ftpRequest.Method = WebRequestMethods.Ftp.DownloadFile;
    ftpResponse = (FtpWebResponse) ftpRequest.GetResponse();
}

System.Net.WebException: 'The remote server returned an error: (500) Syntax error, command unrecognized.'

这是我第一次尝试通过C#连接到ftp服务器。此连接适用于任何ftp客户端和浏览器

更新: FTP服务器现在不支持TLS。一旦我使用没有加密的服务器使用此代码,我将修改代码以使用TLS。

FTP Log

1 个答案:

答案 0 :(得分:-1)

切换到" UsePassive"如你所说,它返回"语法错误,命令无法识别"。这意味着你的语法错误,导致你不在这里公开完整的源代码,所以我无法弄清楚。