vc++post_http

bool   CTCSDlg::UpFileOfHttp(TCHAR* strSourceName,TCHAR* strDestName,TCHAR* _strFtpSite)
{
 TCHAR* pName=new TCHAR[256]; 
 wsprintf(pName,L"%s?filename=%s",m_strFtpSite,strDestName);
 AfxOutInfoToFile("===上传文件名：",strSourceName);
 AfxOutInfoToFile("===上传地址：",pName);
 ASSERT(m_strFtpSite != "" && strSourceName != "");
 BOOL bResult = FALSE;
 DWORD dwType = 0;
 CString strServer;
 CString strObject;

 INTERNET_PORT wPort = 80;
 DWORD dwFileLength = 0;
 char * pFileBuff = NULL;
 CHttpConnection * pHC = NULL;
 CHttpFile * pHF = NULL;
 CInternetSession cis;

 bResult =  AfxParseURL(pName, dwType, strServer, strObject, wPort);

 AfxOutInfoToFile(L"===解析的服务器：",strServer.GetBuffer(strServer.GetLength()));
 AfxOutInfoToFile(L"===解析的地址：",strObject.GetBuffer(strObject.GetLength()));
 //AfxOutInfoToFile("===解析的地址：",m_strFtpSite);
 if(!bResult)
  return false;
 CFile file;
 try
 {
  if(!file.Open(strSourceName, CFile::shareDenyNone | CFile::modeRead))

   return false;
  dwFileLength = file.GetLength();
  if(dwFileLength <= 0)
   return false;

  pFileBuff = new char[dwFileLength];
  memset(pFileBuff, 0, sizeof(char) * dwFileLength);
  file.Read(pFileBuff, dwFileLength);
  const int nTimeOut = 5000;
  cis.SetOption(INTERNET_OPTION_CONNECT_TIMEOUT, nTimeOut); //联接超时设置

  cis.SetOption(INTERNET_OPTION_CONNECT_RETRIES, 1);  //重试1次
  pHC = cis.GetHttpConnection(strServer, wPort);  //取得一个Http联接
  pHF = pHC->OpenRequest(CHttpConnection::HTTP_VERB_POST, strObject);

  if(!pHF->SendRequest(NULL, 0, pFileBuff, dwFileLength))
  {
   delete[]pFileBuff;
   pFileBuff = NULL;
   pHF->Close();
   pHC->Close();
   cis.Close();
   AfxOutInfoToFile(L"上传中，SendRequest error\n");
   return FALSE;
  }

  CString szError=L"0";
  char szBuff[1024];
  UINT nRead;
  while (nRead = pHF->Read(szBuff,1023))