新建MFC 程序
在頭文件中加入#import "C:\Program Files\Common Files\System\ADO\msado15.dll" no_namespace rename( "EOF","EndOfFile")
在APP中加入 _ConnectionPtr pMyConnect;
_RecordsetPtr m_pRecordset;
extern CPicToDbApp theApp;
//onOK()函數
WIN32_FIND_DATA FindFileData;
int iCount=1;
HANDLE hFind;
DWORD dwError;
CString FileName;
m_time=0;
UpdateData(FALSE);
//初始化ADO
InitADO();
//查找文件寫入數據庫
clock_t start = clock();
hFind = FindFirstFile(m_eopen+"\\"+"*.jpg", &FindFileData);
if (hFind == INVALID_HANDLE_VALUE)
{
m_output.Format("FindFirstFile failed (%d)\n",GetLastError());
GetDlgItem(IDC_BUTTON)->EnableWindow(true);
GetDlgItem(IDOK)->EnableWindow(true);
UpdateData(FALSE);
return;
}
m_output.Format("正在保存第%d個文件...",iCount);
UpdateData(FALSE);
FileName=m_eopen+"\\"+FindFileData.cFileName;
theApp.PicToAccess(FileName);
//將數據存入數據庫中
double d;
while (FindNextFile(hFind,&FindFileData) != 0)
{
FileName=m_eopen+"\\"+FindFileData.cFileName;
m_output.Format("正在保存第%d個文件...",iCount);
//有點閃爍
UpdateData(FALSE);
iCount++;
theApp.PicToAccess(FileName);
}
m_output.Format("總共寫入了%d個文件",iCount);
clock_t end = clock();
d = (double)( end - start ) / CLOCKS_PER_SEC;
m_time=d;
GetDlgItem(IDC_BUTTON)->EnableWindow(true);
GetDlgItem(IDOK)->EnableWindow(true);
UpdateData(FALSE);
//錯誤處理
dwError = GetLastError();
FindClose(hFind);
if (dwError!= ERROR_NO_MORE_FILES)
{
m_output.Format("FindNextFile error. Error is %u\n", dwError);
return;
}
theApp.m_pRecordset->Close();
theApp.m_pRecordset=NULL;
void CPicToDbDlg::OnCancel()
{
if(theApp.pMyConnect)
{
theApp.pMyConnect->Close();
theApp.pMyConnect=NULL;
}
CDialog::OnCancel();
}
void InitADO()
{
HRESULT hr=theApp.pMyConnect.CreateInstance(__uuidof(Connection));
if(FAILED(hr))return;
//打開數據庫
try{
theApp.pMyConnect->Open("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=dbpicture.mdb","","",adModeUnknown);
}
catch (_com_error &e)
{
::MessageBox(NULL,e.Description(), "警告 ",MB_OK|MB_ICONWARNING);
}
try
{
theApp.m_pRecordset.CreateInstance("ADODB.Recordset");
theApp.m_pRecordset->Open("SELECT * FROM sheet1",theApp.pMyConnect.GetInterfacePtr(),\
adOpenStatic,adLockOptimistic,adCmdText);
}
///捕捉異常
catch(_com_error e)
{
AfxMessageBox("讀取數據庫失敗!");
}
}