为什么连接不上FTP？

[tangjiang]

在我下面的程序中，为什么不能实现这个连接，也没什么错误。调试时每次都进入CATHCH块。我在Internet Explorer中用ftp://ftp.microsoft.com可以进入。
盼高手回答，谢谢先。

在.H文件中定义这两个变量
protected:
CFtpConnection* m_pFtpConnection;
CInternetSession* m_pInternetSession;

在.CPP文件中的部分代码如下：
CFTPConnectView::CFTPConnectView()
{
// TODO: add construction code here
m_pInternetSession = new CInternetSession;
}

CFTPConnectView::~CFTPConnectView()
{
if(m_pInternetSession != NULL)
delete m_pInternetSession;
}


/////////////////////////////////////////////////////////////////////////////
// CFTPConnectView message handlers

int CFTPConnectView::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
if (CView::OnCreate(lpCreateStruct) == -1)
return -1;

// TODO: Add your specialized creation code here
SetTimer(1, 1000, NULL);

return 0;
}

void CFTPConnectView::OnTimer(UINT nIDEvent)
{
// TODO: Add your message handler code here and/or call default
KillTimer(nIDEvent);

try
{
m_pFtpConnection = m_pInternetSession->GetFtpConnection("ftp.microsoft.com");
}
catch(CInternetException *pEx)
{
pEx->Delete();
m_pFtpConnection = NULL;
}

CView::OnTimer(nIDEvent);
}

[masterz]

/////////////////////////////////////////////////////////////////////
//FTP download
/////////////////////////////////////////////////////////////////////
#include <windows.h>
#include <wininet.h>
#pragma comment(lib,"wininet")
#include <stdio.h>
char aa[1024];char bb[1024];char cc[1024];
HANDLE m_hSession,hC,hF;
long ftpdownload (LPCTSTR lpszserver,LPCTSTR lpszfilepath,LPCTSTR lpszsavepath);

int main()
{
printf("download from netscape.com\n");
//ftp://ftp.netscape.com/pub/sdk/plugin/windows/oct_21_97/winNPSDK.zip
//ftp://ftp.netscape.com/pub/sdk/help/windows/onefull.zip
ftpdownload("ftp.netscape.com","pub/sdk/help/windows/onefull.zip","z.zip");
return 1;
}
long ftpdownload (LPCTSTR lpszserver,LPCTSTR lpszfilepath,LPCTSTR lpszsavepath)
{
m_hSession=InternetOpen("MSDN ",0,0,0,0);
hC=InternetConnect(m_hSession,lpszserver,
0,"anonymous","[e-mail]",INTERNET_SERVICE_FTP,0,0) ;
MessageBox(0,"connected with server","info",0);
hF=FtpOpenFile(hC,lpszfilepath,GENERIC_READ,
FTP_TRANSFER_TYPE_BINARY ,0);
char * m_buffer = new char[712+1] ;
DWORD dwBytesRead=0 ;
DWORD dwtotal=0;
BOOL bRead;
FILE* fp=fopen(lpszsavepath,"w+b");
do
{
dwBytesRead=0;
bRead=InternetReadFile(hF,m_buffer,712,&dwBytesRead);
if(dwBytesRead>0)
{
dwtotal+=dwBytesRead;
fwrite(m_buffer,dwBytesRead,1,fp);
}
}
while(dwBytesRead>0);
fclose(fp);
delete m_buffer;
sprintf(aa,"session end ,InternetReadFile dwBytesRead %ld bRead %d",dwtotal,bRead);
MessageBox(0,aa,aa,0);
return 0;
}

[YP2002CN]

樓上這貨刷這麼多..
去看看http://www.5xsoft.com/data/200109/2008382001.htm

[YP2002CN]

少了m_pInetSession=new CInternetSession
(AfxGetAppName(),1,
PRE_CONFIG_INTERNET_ACCESS);