从FTP服务器下载目录

Question

我正在开发RAD Studio（IdFTP）的FTP客户端。我如何从服务器下载目录？ Delphi或C ++。谢谢。

Answer 1

您需要调用TIdFTP.ChangeDir()转到所需的起始目录，然后调用TIdFTP.List()来检索其文件和子目录的名称，然后循环访问TIdFTP.DirectoryListing，在每个文件名上调用TIdFTP.Get()并将每个子目录名称存储到您自己的本地列表中，然后最后重复在本地列表中的每个子目录上执行上述步骤。

例如：

Procedure DownloadFolder(ARemoteFolder, ALocalFolder: string);
Var
  SubFolders: TStringList;
  I: Integer;
Begin
  ALocalFolder := IncludeTrailingPathDelimiter(ALocalFolder);
  ForceDirectories(ALocalFolder);
  SubFolders := TStringList.Create;
  Try
    FTP.ChangeDir(ARemoteFolder);
    FTP.List;
    For I := 0 to FTP.DirectoryListing.Count-1 do
    Begin
      If FTP.DirectoryListing[I].ItemType = ditFile then
      Begin
        FTP.Get(FTP.DirectoryListing[I].FileName, ALocalFolder + FTP.DirectoryListing[I].FileName);
      End
      Else if FTP.DirectoryListing[I].ItemType = ditDirectory then
      Begin
        if (FTP.DirectoryListing[I].FileName <> '.') and FTP.DirectoryListing[I].FileName <> '..') then
          SubFolders.Add(FTP.DirectoryListing[I].FileName);
      End;     
    End;
    For I := 0 to SubFolders.Count-1 do
    Begin
      DownloadFolder(ARemoteFolder + '/' + SubFolders[I], ALocalFolder + SubFolders[I]);
    End;
  Finally
    SubFolders.Free;
  End;
End;

DownloadFolder('/StartingDir', 'C:\Downloaded');

Answer 2

有必要添加条件：

否则if（（IdFTP.DirectoryListing [I] .ItemType = ditDirectory）和（Length（IdFTP.DirectoryListing [I] .FileName）> 2））然后

避免“..”作为目录名称