ftpgetfilesize

A. C# 获取ftp某个目录下的所有文件(不要文件夹)

我在之前做过一个FTP的客户端工具。
drw 文件夹
-rw 文件（有扩展名或无扩展名）
我是根据服务端返回的报文进行分析获取的列表。
给你一些代码片段：
/// <summary>
/// 获取指定目录下的文件和文件夹。
/// </summary>
/// <param name="path">要获取的目录</param>
/// <param name="WRMethods">要发送到FTP服务器的密令。</param>
/// <returns></returns>
public string[] GetFileList(string path, string WRMethods)//从ftp服务器上获得文件列表
{
WebResponse response;
string[] downloadFiles;
int conut = 4;
StringBuilder result = new StringBuilder();
Connect(path);
if (FTPVariable.IsUseProxy_ftp)
{
reqFTP.Proxy = FtpProxy.GetFtpSelectProxy(FTPVariable.FtpCommand_transferProxyName);
}
reqFTP.ReadWriteTimeout = 12000;
//如果不应销毁到服务器的连接，则为 true；否则为 false。默认值为 true。
//
reqFTP.Method = WRMethods;
try
{
response = (FtpWebResponse)reqFTP.GetResponse();
goto Ftp_lbl_03;
}
catch (WebException webex)
{
GetReply(webex.Message);
if (ReplyCode == 530)// 未登录。
{
goto Ftp_lbl_04;
}
else if (ReplyCode == 550)
{
goto Ftp_lbl_04;
}
else
{
FtpManage.SetLog("获取列表超时,等候1秒后重试!");
goto Ftp_lbl_01;
}
}
Ftp_lbl_01:
try
{
FtpManage.SetLog("正在连接服务器 " + FtpRemoteHost);
response = GetRequest(path, WRMethods);
}
catch (WebException)
{
FtpManage.SetLog("获取列表超时,等候1秒后重试!");
downloadFiles = null;
System.Threading.Thread.Sleep(1000);
if (conut == 0)
{
goto Ftp_lbl_02;
}
conut--;
goto Ftp_lbl_01;
}
catch (Exception ex)
{
MSG.Show(ex.Message, Global.GetRS["msgTilteError"], MessageBoxButton.OK, MsgIco.Error);
FtpManage.SetLog("命令执行失败,原因:" + ex.Message);
downloadFiles = null;
return downloadFiles;
}
Ftp_lbl_03:
StreamReader reader = new StreamReader(response.GetResponseStream(), System.Text.Encoding.Default);//中文文件名
string line = reader.ReadLine();
while (line != null)
{
result.Append(line);
result.Append("\n");
line = reader.ReadLine();
}
if (result.Length == 0)
{
return null;
}
// to remove the trailing '\n'
result.Remove(result.ToString().LastIndexOf('\n'), 1);
reader.Close();
response.Close();
FtpManage.SetLog("命令已成功执行");
return result.ToString().Split('\n');
Ftp_lbl_04:
FtpManage.SetLog(ReplyInfo);
return null;
Ftp_lbl_02:
FtpManage.SetLog("550 获取列表失败,无法连接远程服务器!");
FtpManage.ftpmanage.IsRefurbish = true;
return null;
}
/// <summary>
/// 获取指定目录下的文件和文件夹。
/// </summary>
/// <param name="path">要获取的目录</param>
/// <returns></returns>
public string[] GetFileList(string path)//从ftp服务器上获得文件列表
{
return GetFileList(FTPVariable.FtpURLhead + FtpRemoteHost + "/" + path, WebRequestMethods.Ftp.ListDirectory);
}

/// <summary>
/// 获取指定目录下的文件和文件夹。
/// </summary>
/// <returns></returns>
public string[] GetFileList()//从ftp服务器上获得文件列表
{
return GetFileList(FTPVariable.FtpURLhead + FtpRemoteHost + "/", WebRequestMethods.Ftp.ListDirectory);
}

/// <summary>
/// 获取目录和文件名,返回目录表。
/// </summary>
/// <param name="path">要获取的目录</param>
/// <returns></returns>
public string[] GetCatalog_FileList(string path)
{
string[] fountainhead = GetFileList(FTPVariable.FtpURLhead + FtpRemoteHost + "/" + path, WebRequestMethods.Ftp.ListDirectoryDetails);
string[] Catalog = null;
if (fountainhead == null)
{
return null;
}
Catalog = new string[fountainhead.Length];
for (int i = 3; i < fountainhead.Length; i++)
{
Catalog[i - 3] += fountainhead[i].Substring(55, fountainhead[i].Length - 55) + "&";//FileName
Catalog[i - 3] += fountainhead[i].Substring(30, 12) + "&";//FileSize
Catalog[i - 3] += fountainhead[i].Substring(42, 13) + "&";//AmendDate
Catalog[i - 3] += fountainhead[i].Substring(0, 3) + "&";
}
return Catalog;
}

B. c# ftp 判断文件是否存在

varrequest=(FtpWebRequest)WebRequest.Create
("ftp://ftp.domain.com/doesntexist.txt");
request.Credentials=newNetworkCredential("user","pass");
request.Method=WebRequestMethods.Ftp.GetFileSize;

try
{
FtpWebResponseresponse=(FtpWebResponse)request.GetResponse();
}
catch(WebExceptionex)
{
FtpWebResponseresponse=(FtpWebResponse)ex.Response;
if(response.StatusCode==
FtpStatusCode.ActionNotTakenFileUnavailable)
{
//Doesnotexist
}
}