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Форумы / Microsoft Access [игнор отключен] [закрыт для гостей] / FTP (через wininet.dll) обработка ошибок.
3 сообщений из 3, страница 1 из 1
FTP (через wininet.dll) обработка ошибок.
    #39202855
Casper2002
Скрыть профиль Поместить в игнор-лист Сообщения автора в теме
Гость
Доброе время суток,

Имеется код вида:

Код: vbnet
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Option Compare Database

Const FTP_TRANSFER_TYPE_UNKNOWN = &H0
Const FTP_TRANSFER_TYPE_ASCII = &H1
Const FTP_TRANSFER_TYPE_BINARY = &H2
Const INTERNET_DEFAULT_FTP_PORT = 21               ' default for FTP servers
Const INTERNET_SERVICE_FTP = 1
Const INTERNET_FLAG_PASSIVE = &H8000000            ' used for FTP connections
Const INTERNET_OPEN_TYPE_PRECONFIG = 0                    ' use registry configuration
Const INTERNET_OPEN_TYPE_DIRECT = 1                        ' direct to net
Const INTERNET_OPEN_TYPE_PROXY = 3                         ' via named proxy
Const INTERNET_OPEN_TYPE_PRECONFIG_WITH_NO_AUTOPROXY = 4   ' prevent using java/script/INS
Const MAX_PATH = 260
Private Type FILETIME
    dwLowDateTime As Long
    dwHighDateTime As Long
End Type

Private Type WIN32_FIND_DATA
    dwFileAttributes As Long
    ftCreationTime As FILETIME
    ftLastAccessTime As FILETIME
    ftLastWriteTime As FILETIME
    nFileSizeHigh As Long
    nFileSizeLow As Long
    dwReserved0 As Long
    dwReserved1 As Long
    cFileName As String * MAX_PATH
    cAlternate As String * 14
End Type

'Private Declare Function InternetCloseHandle Lib "wininet" (ByRef hInet As Long) As Long
Private Declare Function InternetCloseHandle Lib "wininet" (ByVal hInet As Long) As Long

Private Declare Function InternetConnect Lib "wininet.dll" Alias "InternetConnectA" (ByVal hInternetSession As Long, ByVal sServerName As String, ByVal nServerPort As Integer, ByVal sUserName As String, ByVal sPassword As String, ByVal lService As Long, ByVal lFlags As Long, ByVal lContext As Long) As Long
Private Declare Function InternetOpen Lib "wininet.dll" Alias "InternetOpenA" (ByVal sAgent As String, ByVal lAccessType As Long, ByVal sProxyName As String, ByVal sProxyBypass As String, ByVal lFlags As Long) As Long
Private Declare Function FtpSetCurrentDirectory Lib "wininet.dll" Alias "FtpSetCurrentDirectoryA" (ByVal hFtpSession As Long, ByVal lpszDirectory As String) As Boolean
Private Declare Function FtpGetCurrentDirectory Lib "wininet.dll" Alias "FtpGetCurrentDirectoryA" (ByVal hFtpSession As Long, ByVal lpszCurrentDirectory As String, lpdwCurrentDirectory As Long) As Long
Private Declare Function FtpCreateDirectory Lib "wininet.dll" Alias "FtpCreateDirectoryA" (ByVal hFtpSession As Long, ByVal lpszDirectory As String) As Boolean
Private Declare Function FtpRemoveDirectory Lib "wininet.dll" Alias "FtpRemoveDirectoryA" (ByVal hFtpSession As Long, ByVal lpszDirectory As String) As Boolean
Private Declare Function FtpDeleteFile Lib "wininet.dll" Alias "FtpDeleteFileA" (ByVal hFtpSession As Long, ByVal lpszFileName As String) As Boolean
Private Declare Function FtpRenameFile Lib "wininet.dll" Alias "FtpRenameFileA" (ByVal hFtpSession As Long, ByVal lpszExisting As String, ByVal lpszNew As String) As Boolean
Private Declare Function FtpGetFile Lib "wininet.dll" Alias "FtpGetFileA" (ByVal hConnect As Long, ByVal lpszRemoteFile As String, ByVal lpszNewFile As String, ByVal fFailIfExists As Long, ByVal dwFlagsAndAttributes As Long, ByVal dwFlags As Long, ByRef dwContext As Long) As Boolean
Private Declare Function FtpPutFile Lib "wininet.dll" Alias "FtpPutFileA" (ByVal hConnect As Long, ByVal lpszLocalFile As String, ByVal lpszNewRemoteFile As String, ByVal dwFlags As Long, ByVal dwContext As Long) As Boolean
Private Declare Function InternetGetLastResponseInfo Lib "wininet.dll" Alias "InternetGetLastResponseInfoA" (lpdwError As Long, ByVal lpszBuffer As String, lpdwBufferLength As Long) As Boolean
Private Declare Function FtpFindFirstFile Lib "wininet.dll" Alias "FtpFindFirstFileA" (ByVal hFtpSession As Long, ByVal lpszSearchFile As String, lpFindFileData As WIN32_FIND_DATA, ByVal dwFlags As Long, ByVal dwContent As Long) As Long
Private Declare Function InternetFindNextFile Lib "wininet.dll" Alias "InternetFindNextFileA" (ByVal hFind As Long, lpvFindData As WIN32_FIND_DATA) As Long
Const PassiveConnection As Boolean = True


Public Sub CopyCSVFromFTP()
'On Error GoTo 0

Dim hConnection As Long, hOpen As Long, sOrgPath  As String

FTP_Host = GetProperty("FTP_Host")
FTP_Login = GetProperty("FTP_Login")
FTP_Password = GetProperty("FTP_Password")
    
'open an internet connection
hOpen = InternetOpen("API-Guide sample program", INTERNET_OPEN_TYPE_PRECONFIG, vbNullString, vbNullString, 0)

'connect to the FTP server
hConnection = InternetConnect(hOpen, FTP_Host, INTERNET_DEFAULT_FTP_PORT, FTP_Login, FTP_Password, INTERNET_SERVICE_FTP, IIf(PassiveConnection, INTERNET_FLAG_PASSIVE, 0), 0)

'create a buffer to store the original directory
sOrgPath = String(MAX_PATH, 0)

'get the directory
FtpGetCurrentDirectory hConnection, sOrgPath, Len(sOrgPath)
  
'set the current directory to 'root/testing'
FtpSetCurrentDirectory hConnection, GetProperty("FTP_Folder")

'***** retrieve the file from the FTP server
SaveToPath = CurrentProject.Path + "\CSV\" + GetProperty("CSV_filename")
'Debug.Print SaveToPath

FtpGetFile hConnection, GetProperty("FTP_filename"), SaveToPath, False, 0, FTP_TRANSFER_TYPE_UNKNOWN, 0
    

'close the FTP connection
InternetCloseHandle hConnection
    
'close the internet connection
InternetCloseHandle hOpen

End Sub



Все работает как мне нужно, файл благополучно копируется с FTP, но есть проблема с обработкой ошибок. Если файл не найден или задана неверная директория, путь и т.д., то почему-то игнорируются любые ошибки. Даже код "On Error GoTo 0" в начале не помог. В чем может быть дело?
...
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FTP (через wininet.dll) обработка ошибок.
    #39202906
Casper2002,

А где здесь обработка ошибок? Её нет. Читаем описание любой функции этой группы, например, FtpCreateDirectory :FtpCreateDirectory function...
Return value

Returns TRUE if successful, or FALSE otherwise. To get a specific error message, call GetLastError. If the error message indicates that the FTP server denied the request to create a directory, use InternetGetLastResponseInfo to determine why.Для функций, объявленных через Declare, в VB/VBA вызов GetLastError() надо заменить на Err.LastDllError, и, соответственно, обрабатывать возвращаемое им значение.
...
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FTP (через wininet.dll) обработка ошибок.
    #39202978
Casper2002
Скрыть профиль Поместить в игнор-лист Сообщения автора в теме
Гость
13-й квартал,

о! действительно! Протупил...
Спасибо большое.
...
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3 сообщений из 3, страница 1 из 1
Форумы / Microsoft Access [игнор отключен] [закрыт для гостей] / FTP (через wininet.dll) обработка ошибок.
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