ADO连接SQL SERVER2005

 实现类的过程中借助到了单件模式

#pragma once

#include "SingleTon.h"
#import "C:\Program Files\Common Files\System\ado\msado15.dll" no_namespace  rename("EOF", "adoEOF")

class AFXADODB : public Singleton<AFXADODB>
{
public:
	_ConnectionPtr m_pConnection; //数据库连接
	_RecordsetPtr m_pRecordset;   //记录
	_CommandPtr m_pCommand;       //命令
	_variant_t value;
public:
	AFXADODB(void);
	~AFXADODB(void);
	void Create(void);
	void Destory(void);
	void Insert(void);
	void Alter(void);
	void Delete(void);
	_RecordsetPtr Search(void);
};

 

#include "StdAfx.h"
#include "AFXADODB.h"

AFXADODB* Singleton<AFXADODB>::m_instance = NULL;
AFXADODB::AFXADODB(void)
{
	
}

AFXADODB::~AFXADODB(void)
{
}

void AFXADODB::Create(void)
{
	//初始化COM库
	if(!AfxOleInit())
	{
		::AfxMessageBox(_T("OLE初始化出错!"));
	}
	::CoInitialize(NULL); 
	HRESULT hr;
	hr = m_pConnection.CreateInstance("ADODB.Connection");
	try
	{
		if(SUCCEEDED(hr))
		{
			_bstr_t strConnect = "Provider=SQLOLEDB;Data Source=CSE013\\SQLEXPRESS;Initial Catalog=AFX_Server;Integrated Security=SSPI";
			m_pConnection->Open(strConnect,"","",adModeUnknown);
//			AfxMessageBox(_T("连接成功!"));
		}
		else
			AfxMessageBox(_T("error!"));
	}
	catch(_com_error e)
	{
		AfxMessageBox(_T("连接失败!"));
		AfxMessageBox(e.ErrorMessage());
	}
}

void AFXADODB::Destory(void)
{
	if(m_pRecordset!=NULL)
		m_pRecordset->Close();
	m_pConnection->Close();
	::CoUninitialize();
}

void AFXADODB::Insert(void)
{
	m_pRecordset.CreateInstance(__uuidof(Recordset));
	try
	{
		CString strSQL = _T("INSERT INTO F_File_Info (F_ID, F_File_MD5,F_File_Info, F_HotKey) VALUES ('1','123','456','789')");
		m_pConnection->Execute((_bstr_t)strSQL, &value, adCmdText);
//		AfxMessageBox(_T("添加成功！"));
	}
	catch(_com_error *e)
	{
		AfxMessageBox(e->ErrorMessage());
	}
}

void AFXADODB::Alter(void)
{
	m_pRecordset.CreateInstance(__uuidof(Recordset));
	try
	{
		m_pConnection->Execute("update F_File_Info set F_File_Info = F_File_Info + 's'",&value,adCmdText);
//		AfxMessageBox(_T("更新成功！"));
	}
	catch(_com_error *e)
	{
		AfxMessageBox(e->ErrorMessage());
	}
}

void AFXADODB::Delete(void)
{
	m_pRecordset.CreateInstance(__uuidof(Recordset));
	try
	{
		m_pConnection->Execute("delete from F_File_Info where F_ID='1'",&value,adCmdText);
//		AfxMessageBox(_T("删除成功！"));
	}
	catch(_com_error *e)
	{
		AfxMessageBox(e->ErrorMessage());
	}
}

_RecordsetPtr AFXADODB::Search(void)
{
	m_pRecordset.CreateInstance(__uuidof(Recordset));
	try
	{
		m_pRecordset = m_pConnection->Execute("select * from F_File_Info where F_HotKey like '%7%' union select * from F_File_Info where F_File_Info like '%7%' order by F_ID DESC",&value,adCmdText);
	}
	catch(_com_error *e)
	{
		AfxMessageBox(e->ErrorMessage());
	}
	return m_pRecordset;
}

 

使用MFC的CListCtrl显示代码

	AFXADODB* DB_Client = AFXADODB::GetInstance();
	DB_Client->Create();
	//	DB_Client->Insert();
	//	DB_Client->Alter();
	_RecordsetPtr a = DB_Client->Search();
	while(!(a->adoEOF))
	{
		LPCTSTR temp = (LPCTSTR)a->GetCollect("F_ID").bstrVal;
		List_Download.InsertItem(0, temp);
		a->MoveNext();
	}