vc实现简单的ftp上传和下载功能

#include <afxinet.h>
void CFtpHandleDlg::OnOK()
{
// TODO: Add extra validation here
CInternetSession *m_pInternetSession=new CInternetSession(AfxGetAppName(),1,PRE_CONFIG_INTERNET_ACCESS);
CFtpConnection *m_pFtpConnection;
try{
m_pFtpConnection=m_pInternetSession->GetFtpConnection("127.0.0.1","123456","123456");
if(m_pFtpConnection != NULL)//链接成功
{
CFtpFileFind FtpFinder( m_pFtpConnection ) ;
CString FtpPath="/123/123.xls";
CString LocalPath ="D://456//456.xls";
if( !( m_pFtpConnection->GetFile( FtpPath, LocalPath, true, FILE_ATTRIBUTE_NORMAL , FTP_TRANSFER_TYPE_BINARY , 1) ) )
{
DWORD dErr = GetLastError() ;
CString sErr;
sErr.Format( "下载失败: ERROR %d" ,dErr ) ;
AfxMessageBox(sErr);
}
FtpPath="/123/456.xls";
if( !( m_pFtpConnection->PutFile( LocalPath, FtpPath, FTP_TRANSFER_TYPE_BINARY, 1) ) )
{
DWORD dErr = GetLastError() ;
CString sErr;
sErr.Format( "上传失败: ERROR %d" ,dErr ) ;
AfxMessageBox(sErr);
}

}
}catch(CInternetException *pEx){
TCHAR szError[1024];
if(pEx->GetErrorMessage(szError,1024))
AfxMessageBox(szError);
else
AfxMessageBox("There was an exception");
pEx->Delete();
m_pFtpConnection=NULL;
}
if(m_pFtpConnection != NULL)
{
m_pFtpConnection->Close();
delete m_pFtpConnection;
}
delete m_pInternetSession;
//CDialog::OnOK();
}