复制代码 代码如下:
// ReadSqlConsole.cpp: 主项目文件。

#include "stdafx.h"
#include <iostream>
#include<iostream>
#include<iomanip>//for setw()
#include"windows.h"

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

using namespace System;
using namespace std;

int main(array<System::String ^> ^args)
{
::CoInitialize(NULL);

//类型在msado15.dll中已定义
_RecordsetPtr m_pRecordset("ADODB.Recordset");
_ConnectionPtr m_pConnection("ADODB.Connection");

_bstr_t bstrSQL("select * from er_order where pactnumber like '13010000%' order by pactnumber"); //对应的sql语句

try
{
clog << "正在连接数据库..." << endl;
m_pConnection.CreateInstance("ADODB.Connection");//创建Connection对象
//设置连接字符串，必须是BSTR型或者_bstr_t类型
_bstr_t strConnect = "Provider=SQLOLEDB; Server=【数据库实例】;Database=【数据库名】; uid=【数据库用户】; pwd=【密码】;";
m_pConnection->Open(strConnect, "", "", adModeUnknown);//服务器连接

if (m_pConnection == NULL)
{
std::cerr << "Lind data ERROR!\n";
}

m_pRecordset.CreateInstance(__uuidof(Recordset));//创建记录集对象

//取得表中的记录
m_pRecordset->Open(bstrSQL, m_pConnection.GetInterfacePtr(), adOpenDynamic, adLockOptimistic, adCmdText);

_variant_t PactNumber, OrigCount;//对应库中的字段

cout << "--------------合同清单--------------" << endl;
while (!m_pRecordset->EndOfFile)
{
PactNumber = m_pRecordset->GetCollect("Pactnumber");
OrigCount = m_pRecordset->GetCollect("Origcount");
cout << "合同号:" << setw(10) << (char*)(_bstr_t)PactNumber;
cout << " 签单额:" << setw(7) << (char*)(_bstr_t)OrigCount << endl;

m_pRecordset->MoveNext();//下一条记录
}
m_pRecordset->Close();//关闭记录集
}

catch (_com_error e)//捕捉异常
{
cerr << "\nERROR:" << (char*)e.Description();
}

if (m_pConnection->State)
{
m_pConnection->Close();
}

::CoUninitialize();

Console::ReadLine();

return 0;
}