adoprocdlg.cpp

来自「该测试程序包含了多种读取ORACLE数据库的方式,VC++编程,简单,易学,适合」· C++ 代码 · 共 349 行

// ADOProcDlg.cpp : 实现文件
//

#include "stdafx.h"
#include "ADOProc.h"
#include "ADOProcDlg.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#endif

// ADO 库的引入
#import "c:\program files\common files\system\ado\msado15.dll" \
no_namespace rename( "EOF","adoEOF" )


// 用于应用程序“关于”菜单项的 CAboutDlg 对话框

class CAboutDlg : public CDialog
{
public:
	CAboutDlg();

// 对话框数据
	enum { IDD = IDD_ABOUTBOX };

	protected:
	virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV 支持

// 实现
protected:
	DECLARE_MESSAGE_MAP()
};

CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
}

void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
}

BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
END_MESSAGE_MAP()


// CADOProcDlg 对话框



CADOProcDlg::CADOProcDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CADOProcDlg::IDD, pParent)
{
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);

}

void CADOProcDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
}

BEGIN_MESSAGE_MAP(CADOProcDlg, CDialog)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	//}}AFX_MSG_MAP
	ON_BN_CLICKED(IDC_BUTTON1, OnBnClickedButton1)
	ON_BN_CLICKED(IDC_BUTTON2, OnBnClickedButton2)
END_MESSAGE_MAP()


// CADOProcDlg 消息处理程序

BOOL CADOProcDlg::OnInitDialog()
{
	CDialog::OnInitDialog();

	// 将\“关于...\”菜单项添加到系统菜单中。

	// IDM_ABOUTBOX 必须在系统命令范围内。
	ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
	ASSERT(IDM_ABOUTBOX < 0xF000);

	CMenu* pSysMenu = GetSystemMenu(FALSE);
	if (pSysMenu != NULL)
	{
		CString strAboutMenu;
		strAboutMenu.LoadString(IDS_ABOUTBOX);
		if (!strAboutMenu.IsEmpty())
		{
			pSysMenu->AppendMenu(MF_SEPARATOR);
			pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
		}
	}

	// 设置此对话框的图标。当应用程序主窗口不是对话框时，框架将自动
	//  执行此操作
	SetIcon(m_hIcon, TRUE);			// 设置大图标
	SetIcon(m_hIcon, FALSE);		// 设置小图标

	// TODO：在此添加额外的初始化代码
	
	return TRUE;  // 除非设置了控件的焦点，否则返回 TRUE
}

void CADOProcDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
	if ((nID & 0xFFF0) == IDM_ABOUTBOX)
	{
		CAboutDlg dlgAbout;
		dlgAbout.DoModal();
	}
	else
	{
		CDialog::OnSysCommand(nID, lParam);
	}
}

// 如果向对话框添加最小化按钮，则需要下面的代码
//  来绘制该图标。对于使用文档/视图模型的 MFC 应用程序，
//  这将由框架自动完成。

void CADOProcDlg::OnPaint() 
{
	if (IsIconic())
	{
		CPaintDC dc(this); // 用于绘制的设备上下文

		SendMessage(WM_ICONERASEBKGND, reinterpret_cast<WPARAM>(dc.GetSafeHdc()), 0);

		// 使图标在工作矩形中居中
		int cxIcon = GetSystemMetrics(SM_CXICON);
		int cyIcon = GetSystemMetrics(SM_CYICON);
		CRect rect;
		GetClientRect(&rect);
		int x = (rect.Width() - cxIcon + 1) / 2;
		int y = (rect.Height() - cyIcon + 1) / 2;

		// 绘制图标
		dc.DrawIcon(x, y, m_hIcon);
	}
	else
	{
		CDialog::OnPaint();
	}
}

//当用户拖动最小化窗口时系统调用此函数取得光标显示。
HCURSOR CADOProcDlg::OnQueryDragIcon()
{
	return static_cast<HCURSOR>(m_hIcon);
}


static VARIANT* pvtEmpty = static_cast<VARIANT*> (&vtMissing);
static _variant_t vtMissing2(DISP_E_PARAMNOTFOUND, VT_ERROR);
static VARIANT* pvtEmpty2 = static_cast<VARIANT*> (&vtMissing2);


void CADOProcDlg::OnBnClickedButton1()
{
     CoInitialize(NULL);
     CString m_status;
	 bool m_fConnected;
	//_bstr_t source("Driver={SQL Server};Server=WINCC;Uid=sa;Pwd=;Database=pubs");
  //oracle _bstr_t source("Provider='sqloledb';Data Source='WEIDT';Initial Catalog='workdb';Integrated Security='SSPI';");
	_bstr_t source("Provider=SQLOLEDB.1;Password=;Persist Security Info=True;User ID=sa;Initial Catalog=pubs;Data Source=WEIDETAO\\WINCC");
	_bstr_t user("sa");
	_bstr_t pwd("");

	_ConnectionPtr m_pConnection;
	_CommandPtr    m_pCommand;
	_RecordsetPtr  m_pRecordset;
    _ParameterPtr  param;


	HRESULT hr=0;
	try{
		
		hr = m_pConnection.CreateInstance(_uuidof(Connection));
		if(SUCCEEDED(hr))
		{   
			TRACE("hr1=[%d]\n",hr);
			hr = m_pConnection->Open(source,  _bstr_t( L"" ), _bstr_t( L"" ), adConnectUnspecified );
		}
		
		if(SUCCEEDED(hr))
		{
			TRACE("hr2=[%d]\n",hr);
			hr = m_pRecordset.CreateInstance(_uuidof(Recordset));
		
		}

		if(SUCCEEDED(hr))
		{
			TRACE("hr3=[%d]\n",hr);
		    hr = m_pCommand.CreateInstance(_uuidof(Command));
		
		}
    	if(SUCCEEDED(hr))
		{
			TRACE("hr4=[%d]\n",hr);
    	    hr = param.CreateInstance(_uuidof(Parameter));
		}

		if(SUCCEEDED(hr))
			m_fConnected = TRUE;
		else 
			m_fConnected = FALSE;
	}
	catch (_com_error &e){
	   MessageBox(e.ErrorMessage()); 
	   m_fConnected = FALSE;
	}
	if(!m_fConnected) 
	{
		MessageBox("ADO数据源初始化失败！");
		return;
    }

	try
	{

        m_pCommand->ActiveConnection=m_pConnection;
		m_pCommand->CommandText=_bstr_t( "enroll" );
		//m_pCommand->CommandType=adCmdStoredProc; 与Execute方法中的参数只能指定一个．
		
		m_pCommand->Parameters->Refresh(); 

		/*第一种方法
        m_pCommand->Parameters->Item[ _variant_t( (long) 1 ) ]->Value = _variant_t( (LPCTSTR)"lvhongbin" );
        m_pCommand->Parameters->Item[ _variant_t( (long) 2 ) ]->Value = _variant_t( (LPCTSTR)"xian" );
        */
		/*第二种方法*/
		param=m_pCommand->CreateParameter("",adChar,adParamInput,9,_variant_t((LPCTSTR)"lvhongbin"));
		m_pCommand->Parameters->Append(param);
		
		param=m_pCommand->CreateParameter("",adChar,adParamInput,9,_variant_t((LPCTSTR)"xibei"));
		m_pCommand->Parameters->Append(param);
       		

		m_pCommand->Execute(pvtEmpty, pvtEmpty2, adCmdStoredProc);
		m_pRecordset = m_pCommand.Detach();

		param.Release();
	}
    catch( CException *e ) // trapping all error messages
    {
       TCHAR szCause[255]; 
       e->GetErrorMessage(szCause, 255);
       m_status=szCause;
    }
    catch( _com_error &e )
    {
        m_status=e.ErrorMessage( );
    }
    catch(...)
    {
        m_status="Error while executing the Import";

    }

	MessageBox(m_status);

	CoUninitialize();
    return;
}

void CADOProcDlg::OnBnClickedButton2()
{
     CoInitialize(NULL); 

     CString m_status;
	 bool m_fConnected;
	_bstr_t source("Driver={SQL Server};Server=WINCC;Uid=sa;Pwd=;Database=pubs");
  // _bstr_t source("Provider='sqloledb';Data Source='WEIDT';Initial Catalog='workdb';Integrated Security='SSPI';");
	_bstr_t user("sa");
	_bstr_t pwd("");

	_ConnectionPtr m_pConnection;
	_CommandPtr    m_pCommand;
	_RecordsetPtr  m_pRecordset;
    _ParameterPtr  param;


	HRESULT hr=0;
	try{
		
		hr = m_pConnection.CreateInstance(_uuidof(Connection));
		if(SUCCEEDED(hr))
		{   
			TRACE("hr1=[%d]\n",hr);
			hr = m_pConnection->Open(source, "", "", NULL);
		}
		
		if(SUCCEEDED(hr))
		{
			TRACE("hr2=[%d]\n",hr);
			hr = m_pRecordset.CreateInstance(_uuidof(Recordset));
		
		}

		if(SUCCEEDED(hr))
			m_fConnected = TRUE;
		else 
			m_fConnected = FALSE;
	}
	catch (_com_error &e){
	   MessageBox(e.ErrorMessage()); 
	   m_fConnected = FALSE;
	}
	if(!m_fConnected) 
	{
		MessageBox("ADO数据源初始化失败！");
		return;
    }
	try{

		/*第三种方法*/
        CString strQuery;
	    strQuery.Format("enroll  '%s', '%s'","lvhongbin","xian");
	    _bstr_t query=strQuery;

	    m_pRecordset->PutActiveConnection(_variant_t((IDispatch *)m_pConnection,true));
	    hr = m_pRecordset->Open(query,vtMissing,  adOpenDynamic, adLockOptimistic, adCmdText);
	}
    catch( CException *e ) // trapping all error messages
    {
       TCHAR szCause[255]; 
       e->GetErrorMessage(szCause, 255);
       m_status=szCause;
    }
    catch( _com_error &e )
    {
        m_status=e.ErrorMessage( );
    }
    catch(...)
    {
        m_status="Error while executing the Import";

    }
	MessageBox(m_status);

    CoUninitialize();

}