bool CAdoMethod::OpenDatabase(CString dbIP, CString dbKey, CString dbName)
{
CString my_connect;
my_connect.Format("Provider=sqloledb;server=%s;database=%s", dbIP, dbName);
HRESULT hr;
try{
hr = m_pConnection.CreateInstance(__uuidof (Connection));//CreateInstance("ADODB.Connection");
if (SUCCEEDED(hr)){
hr = m_pConnection->Open((LPCTSTR)my_connect, "sa", (_bstr_t)dbKey, adModeUnknown);
if (SUCCEEDED(hr))
m_IsConnection = true;
else
AfxMessageBox("m_pConnection->Open失敗");
}
else{
_com_error e(hr);
AfxMessageBox(e.ErrorMessage());
}
}
catch(_com_error e){
m_IsConnection = FALSE;
_bstr_t bstrDescription(e.Description());
TRACE("Exception thrown for classes generated by #import");
TRACE("\t Description = %s \n", (LPCTSTR)bstrDescription);
AfxMessageBox(bstrDescription);
}
return m_IsConnection;
}
剛開始在win7上編譯運行沒有問題,但是程序拷貝到xp上就出現 不支持此接口的錯誤提示,找了半天找到原因了,主要是msado15.dll版本不同,在stdafx.h中,
#import "C:\Program Files\Common Files\System\ado\msado15.dll" \
no_namespace rename("EOF", "adoEOF")
此處編譯進去的是win7的msado15.dll,當然在xp上沒法運行。
解決方法:將xp下的C:\Program Files\Common Files\System\ado\msado15.dll拷貝到win7下相應目錄重新編譯即可(記得備份啊)