MFC使用ADO访问MSSQL2005数据库

1.   在stdafx.h最后面加上

#import "C:\Program Files\CommonFiles\System\ado\msado15.dll" \

no_namespace rename("EOF", "adoEOF")rename("BOF","adoBOF")

2.   在TestADODlg.h中添加

_ConnectionPtr m_pConnection;

_RecordsetPtr m_pRecordset;

3.   在TestADODlg.cpp中的OnInitDialog中添加

if (!AfxOleInit())        {               MessageBox(_T("数据库初始化错误！"));        }          try        {               m_pConnection.CreateInstance(__uuidof(Connection));                 _bstr_t strConnect = "Driver={SQLServer};Provider=SQLOLEDB;DSN=hotel;Server=192.168.2.28;Database=TalentVideoDB;UID=sa;PWD=tlserver;"; //其中的Server指定MSSQL2005安装所在的主机IP地址               m_pConnection->Open(strConnect, "", "", adModeUnknown);        }        catch(_com_error e)        {               MessageBox(e.Description());        }          try        {               m_pRecordset.CreateInstance(__uuidof(Recordset));                 m_pRecordset->Open("SELECT * FROM dbo.DEV_Encoders",                      m_pConnection.GetInterfacePtr(),                      adOpenDynamic,                      adLockOptimistic,                      adCmdText);        }        catch(_com_error e)        {               MessageBox(e.Description());        }               _variant_t theValue;        CString strTmp;          while (!m_pRecordset->adoEOF)        {               theValue = m_pRecordset->GetCollect(_T("EncoderName"));               strTmp = (char *)_bstr_t(theValue);//转为CString类型                 m_pRecordset->MoveNext();        }