c++ 连接数据库

#include <icrsint.h>
#include<iostream>
#include<iomanip>
#include <string>
using namespace std;
#import "c:\program files\common files\system\ado\msado15.dll"  no_namespace rename("EOF", "adoEOF")
void main()
{
CoInitialize(NULL);
_ConnectionPtr  sqlSp;
HRESULT hr = sqlSp.CreateInstance(_uuidof(Connection));
if (FAILED(hr))
{
cout << "_ConnectionPtr对象指针实例化失败！！！" << endl;
return;
}
else {
try {
_bstr_t strConnect = "Driver={sql server};server=127.0.0.1,1433;uid=sa;pwd=123;database=test;";
sqlSp->Open(strConnect, "", "", adModeUnknown);
}
catch (_com_error &e) {
cout << e.Description() << endl;
}
_RecordsetPtr m_pRecordset;
if (FAILED(m_pRecordset.CreateInstance(_uuidof(Recordset))))
{
cout << "记录集对象指针实例化失败！" << endl;
return;
}
try {
m_pRecordset->Open("select * from  T_test2", (IDispatch*)sqlSp, adOpenDynamic, adLockOptimistic, adCmdText);
}
catch (_com_error &e)
{
cout << e.Description() << endl;
}
try {
m_pRecordset->MoveFirst();
while (!m_pRecordset->adoEOF)
{
string id = (char*)(_bstr_t)(m_pRecordset->Fields->GetItem(_variant_t("id"))->Value);
cout << id ;
string name = (char*)(_bstr_t)(m_pRecordset->Fields->GetItem(_variant_t("name"))->Value);
cout << name ;
string age = (char*)(_bstr_t)(m_pRecordset->Fields->GetItem(_variant_t("age"))->Value);
cout << age << endl;
m_pRecordset->MoveNext();
}
}
catch (_com_error &e)
{
cout << e.Description() << endl;
}
}
system("pause");
}