// sql_connect1.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"

//9月15日
//C++連接SQL數(shù)據(jù)庫
  
void smsLogon::InitSQLServer(CString server, CString db, CString UserName, CString Pwd)
{
 m_pConnection.CreateInstance("ADODB.Connection");
 CString strCn;
 strCn.Empty();
 strCn="provider=SQLOLEDB;data source="+server
   +";initial catalog="+db
   +";userID="+UserName
   +";Password="+Pwd;
 _variant_t bcnstr=_variant_t(strCn);
 _variant_t bunstr=_variant_t(UserName);
 _variant_t bpwdstr=_variant_t(Pwd);
 //打開一個連接
 try
 {
  m_pConnection->Open(_bstr_t(bcnstr),_bstr_t(bunstr),
   _bstr_t(bpwdstr),-1);//adOpenUnspecified
 }
 catch(_com_error e)
 {
  CString errormessage;
  errormessage.Format("Warning: 連接數(shù)據(jù)庫發(fā)生異常. 錯誤信息: %s; 文件: %s; 行: %d\n", e.ErrorMessage(), __FILE__, __LINE__);
  AfxMessageBox(errormessage);
 }
 catch(...)
 {
  AfxMessageBox("Warning :連接數(shù)據(jù)庫時發(fā)生未知錯誤");
 }
} 

void smsLogon::ExitDB()     //退出時關(guān)閉數(shù)據(jù)庫連接
{
 if(m_pConnection!=NULL)
 {
  m_pConnection->Close();//關(guān)閉連接
  m_pConnection.Release();//釋放對象
 }
}


int main(int argc, char* argv[])
{
	return 0;
}