adoconn.cpp

来自「sql server2000的一般操作类。里面基本包括了连接、插入修改」· C++ 代码 · 共 101 行

// ADOConn.cpp : implementation file
//

#include "stdafx.h"

#include "ADOConn.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif


ADOConn::ADOConn()
{

}

ADOConn::~ADOConn()
{

}

BOOL ADOConn::ExecuteSQL(_bstr_t bstrSQL)
{
	try
	{
		if(m_pConnection==NULL)
			OnInitADOConn();
		m_pConnection->Execute(bstrSQL,NULL,adCmdText);
		return true;
	}
	catch(_com_error e)
	{
		AfxMessageBox(e.Description());
		return false;
	}
}

BOOL ADOConn::ExecuteSQL(_bstr_t StoredProcName,int intStartID,int intEndID)
{
	try
	{
		if(m_pConnection==NULL)
			OnInitADOConn();
	//	var.vt= VT_I2;  
	//	var.iVal= intStartID;	
	//	m_Parameter = m_pCommand->CreateParameter("",adInteger,adParamInput,sizeof(int),var);
	//	m_pCommand->Parameters->Append(m_Parameter);
		m_pConnection->Execute(StoredProcName,NULL,adCmdStoredProc);  //执行数据库存储过程
		return true;
	}
	catch(_com_error e)
	{
		AfxMessageBox(e.Description());
		return false;
	}
}

void ADOConn::ExitConnect()
{
	if(m_pRecordset!=NULL)
		m_pRecordset->Close();
	m_pConnection->Close();

	::CoUninitialize();
}

_RecordsetPtr& ADOConn::GetRecordset(_bstr_t bstrSQL)
{
	try
	{
		if(m_pConnection==NULL)
			OnInitADOConn();
		m_pRecordset.CreateInstance(_uuidof(Recordset));
		m_pRecordset->Open(bstrSQL,m_pConnection.GetInterfacePtr(),adOpenDynamic,
			adLockOptimistic,adCmdText);		
	}
	catch(_com_error e)
	{
		AfxMessageBox(e.Description());
	}
	return m_pRecordset;
}

void ADOConn::OnInitADOConn()
{
	::CoInitialize(NULL);
	try
	{
		m_pConnection.CreateInstance("ADODB.Connection");
		_bstr_t strConnect="Provider=SQLOLEDB; Server=.; Database=njyg; uid=sa; pwd=sa;";
		m_pConnection->Open(strConnect,"","",adModeUnknown);
	}
	catch(_com_error e)
	{	 
		AfxMessageBox(e.Description());
	}
}