EXCEL 一对多数据辅助工具（VS2012，已更新，支持XP以下系统）

//ExcelHelper.h
#pragma once
#include "stdafx.h"
#include "afxdb.h"
//struct
struct ExcHelp{
	CString ID1;
	CString Name1;
	CString ID2;
	CString Name2;
	CString Content2;
};

//
class CExcelHelper
{
private:
	CDatabase m_db;
public:
	ExcHelp m_ExcHelp;
	CString m_FilePath;
	CString m_strSQLcon;
	CString m_SheetName[3];
	CString m_Title[5];
public:
	void InitHelper(CString m_FilePath);
	void Test(CString a,int b);
	CString getString(ExcHelp EH);
public:
	CExcelHelper(void);
	~CExcelHelper(void);
};

//ExcelHelper.cpp
#include "stdafx.h"
#include "ExcelHelper.h"

CExcelHelper::CExcelHelper(void)
{
	m_SheetName[0]=_T("[Sheet1$]");
	m_SheetName[1]=_T("[Sheet2$]");
	m_SheetName[2]=_T("[Sheet3$]");
	m_Title[0]=_T("ID1");
	m_Title[1]=_T("Name1");
	m_Title[2]=_T("ID2");
	m_Title[3]=_T("Name2");
	m_Title[4]=_T("Content2");
}

CExcelHelper::~CExcelHelper(void)
{
	if(m_db.IsOpen()){
		m_db.Close();
	}
}

void CExcelHelper::InitHelper(CString m_FilePath)
{
	//Driver={Microsoft Excel Driver (*.xls)};Dbq=C:\MyExcel.xls;DefaultDir=c:\mypath;
	//"Provider=Microsoft.Jet.OLEDB.4.0;Jet OLEDB:Database Password=;Extended properties=Excel 5.0;Data Source=c:\book1.xls" 
	BOOL ret;
	m_strSQLcon.Format(_T("Driver={Microsoft Excel Driver (*.xls)};FIRSTROWHASNAMES=1;READONLY=FALSE;Dbq=%s;"),m_FilePath);
	//m_strSQLcon.Format(_T("Driver={Provider=Microsoft.Jet.OLEDB.4.0;Extended properties=Excel 5.0;Data Source=%s;"),m_FilePath);
	ret = m_db.OpenEx(m_strSQLcon);
	if(!ret) AfxMessageBox(_T("数据库打开失败"));
}
CString CExcelHelper::getString(ExcHelp EH)
{
	CString temp;
	temp.Format(_T("ID1: %s\tName1: %s\nID2: %s\tName2: %s\tContent2: %s"),EH.ID1,EH.Name1,EH.ID2,EH.Name2,EH.Content2);
	return temp;
}
void CExcelHelper::Test(CString a,int b)
{
	CRecordset m_rs(&m_db);
	CRecordset m_rs0(&m_db);
	CString temp,sqlstr,sqlstr2;
	//读取Sheet1
	sqlstr.Format(_T("select * from %s"),m_SheetName[0]);
	m_rs0.Open(CRecordset::dynaset,sqlstr,CRecordset::readOnly);
	
	//第一次查询（第一个表）
	for(int a=0;a<m_rs0.GetRecordCount();a++)
	{
		m_rs0.GetFieldValue((short)0,temp);
		m_ExcHelp.ID1=temp;
		m_rs0.GetFieldValue((short)1,temp);
		m_ExcHelp.Name1=temp;
		//AfxMessageBox(getString(m_ExcHelp));

		//第二次查询，第二个表
		//查询Sheet2
		sqlstr2.Format(_T("select * from %s where %s='%s'"),m_SheetName[1],m_Title[3],m_ExcHelp.Name1);
		//AfxMessageBox(sqlstr2);
		m_rs.Open(CRecordset::dynaset,sqlstr2,CRecordset::readOnly);
		for(int i=0;i<m_rs.GetRecordCount();i++)
		{
			m_rs.GetFieldValue((short)0,temp);
			m_ExcHelp.ID2=temp;
			m_rs.GetFieldValue((short)1,temp);
			m_ExcHelp.Name2=temp;
			m_rs.GetFieldValue((short)2,temp);
			m_ExcHelp.Content2=temp;
			//AfxMessageBox(getString(m_ExcHelp));
			temp.Format(_T("insert into %s(%s,%s,%s,%s,%s) values('%s','%s','%s','%s','%s')"),
				m_SheetName[2],m_Title[0],m_Title[1],m_Title[2],m_Title[3],m_Title[4],
				m_ExcHelp.ID1,m_ExcHelp.Name1,m_ExcHelp.ID2,m_ExcHelp.Name2,m_ExcHelp.Content2
			);
	//		AfxMessageBox(temp);
			m_db.ExecuteSQL(temp);
			m_rs.MoveNext();
		}
		m_rs.Close();
		m_rs0.MoveNext();
	}
	m_rs0.Close();
	m_db.Close();
	AfxMessageBox(_T("处理完成，结果存在[Sheet3]中，谢谢使用！"));
	
}