MFC读写Excel 工作表

最近工作需要用MFC操作Excel文件，在网上查阅了资料之后，自己也总结了几个步骤，

新建MFC对话框工程，之后再资源视图的对话框中右击，选择类向导，在新的对话框右上角点击"类型库中的MFC类（T）,得到如下对话框所示：

再选择“文件”， 最后在编辑框中填入EXCEL.exe的安装路径，我的是“D:\Program Files\Microsoft Office\Office12\EXCEL.EXE”，

在下面有许多类，我本次只用到了_Application，_Workbook， _Worksheet，Range， Interior这几个类别，依次选择后，分别点击 " > "  ,而不是 " >> "，后者是选择全部的类别，搞定后，点击完成，即可在文件资源目录看到新添加的文件，

   以上就是关于操作的节约流程，最后给出我自己封装的一个操作类，(PS：只有写文件成员函数，没有读文件成员函数，理解了之后，可以自行封装）。

以下是我的源文件和头文件：（PS ： 时间冲忙，可能不太perfact)

ExcelWrapper.h

//////////////////////////////////////////////////////////////////////////
///***********************************//

// compile once
#pragma once

#include "CApplication.h"
#include "CRange.h"
#include "CWorkbook.h"
#include "CWorkbooks.h"
#include "CWorksheet.h"
#include "CWorksheets.h"
#include "Cnterior.h"


#define			FRIST_SHEET			1

class CExcelWrapper
{
public:
	CExcelWrapper()
	{
		m_pCovOptional = new COleVariant((long)DISP_E_PARAMNOTFOUND, VT_ERROR);
	}

	~CExcelWrapper()
	{
		if(NULL != m_pCovOptional)
		{
			delete m_pCovOptional;
			m_pCovOptional = NULL;
		}
	}
	
private:
	bool MakeSureCreatePath(CString strPath);

public:
	bool CreateInterface();
	bool ReleaseInterface();

// attribute
	bool SetColWidth(int nCols, int nWidth, bool bIsAutoFit = false);
	bool SetRowHeight(int nRows, int nHeight, bool bIsAutoFit = false);
	bool SetCellGrid(int nRows, int nCols, int nColorIndex = CExcelWrapper::BLACK);

// operators
public:
	bool SetCellText(int nRows, int nCols, LPCTSTR lpszString);
	//bool GetCellText(int nRows, int nCols, CString &strText);
	bool SetCellColor(int nRows, int nCols, int nColorIndex);
   //bool GetCellColor(int nRows, int nCols, int &nColorIndex);

	bool SaveExcel(CString strPath);

// define color enum
public:                                                       
	enum{BLACK = 1, WHITE, RED, GREEN, BLUE, YELLOW, PINK, LIGHTGREEN};

public:
	COleVariant		*m_pCovOptional;
	CApplication	m_App;
	CWorkbooks		m_Books;
	CWorkbook		m_Book;
	CWorksheets		m_Sheets;
	CWorksheet		m_Sheet;
	CRange			m_Range;
	Cnterior		m_Nterior;
	CRange			m_Cols;
	CRange			m_Rows;
};

ExcelWrapper.cpp

//////////////////////////////////////////////////////////////////////////
///***********************************//

#include "stdafx.h"
#include "CExcelWrapper.h"
#include <imagehlp.h>  
// MakeSureDirectoryPathExists-API needs this lib
#pragma comment(lib,"imagehlp.lib")

//////////////////////////////////////////

bool CExcelWrapper::CreateInterface()
{
	// 加载 Microsoft Office Excel.exe
	if (!m_App.CreateDispatch(_T("Excel.Application")))
	{
		return false;
	}

	m_Books = m_App.get_Workbooks();
	m_Book = m_Books.Add(*m_pCovOptional);
	m_Sheets = m_Book.get_Worksheets();
	m_Sheet=m_Sheets.get_Item(COleVariant((short)FRIST_SHEET));

	return true;
}

bool CExcelWrapper::ReleaseInterface()
{
	// 自适应调整 
	//保存后再修改 Excel.exe进程会弹提示框
	/*m_Cols = m_Range.get_EntireColumn();
	m_Cols.AutoFit();*/

	// 释放资源
	m_Nterior.ReleaseDispatch();
	m_Range.ReleaseDispatch();
	m_Cols.ReleaseDispatch();
	m_Sheet.ReleaseDispatch();
	m_Sheets.ReleaseDispatch();
	m_Book.ReleaseDispatch();
	m_Books.ReleaseDispatch();

	// 退出 Microsoft Office Excel.exe
	m_App.Quit();
	m_App.ReleaseDispatch();

	return true;
}

bool CExcelWrapper::SetColWidth(int nCols, int nWidth, bool bIsAutoFit)
{
	if(nWidth <= 0 || nCols < 1 || nCols > 702)
	return false;
	if(!bIsAutoFit)
	{
	m_Range = m_Sheet.get_Rows();
	m_Cols.AttachDispatch(m_Range.get_Item(COleVariant((long)nCols),vtMissing).pdispVal, TRUE);
	m_Cols.put_ColumnWidth(COleVariant((long)nWidth));
	}
	else
	{
	m_Cols.AutoFit();
	}

	return true;
}

bool CExcelWrapper::SetRowHeight(int nRows, int nHeight, bool bIsAutoFit)
{
	if(nHeight <= 0 || nRows < 1)
		return false;

	if(!bIsAutoFit)
	{
		m_Range.AttachDispatch(m_Sheet.get_Rows(),TRUE);
		m_Rows.AttachDispatch(m_Range.get_Item(COleVariant((long)nRows),vtMissing).pdispVal, TRUE);
		m_Rows.put_RowHeight(COleVariant((long)nHeight));
	}
	else
	{
		m_Rows.AutoFit();
	}

	return true;
}

bool CExcelWrapper::SetCellGrid(int nRows, int nCols, int nColorIndex)
{
	if(nCols < 1 || nCols > 702 || nRows < 1) 
		return false;

	CString str;
	if(nCols > 26)
	{
		str.Format(_T("%c%c%d"), (nCols-1) / 26 + 64, (nCols-1) % 26 + 1 + 64, nRows);
	}
	else
	{
		str.Format(_T("%c%d"), nCols + 64, nRows);
	}

	m_Range.AttachDispatch(m_Sheet.get_Range(COleVariant(str),COleVariant(str)));
	//LineStyle=线型Weight=线宽ColorIndex=线的颜色(-4105为自动)
	m_Range.BorderAround(COleVariant((long)1),(long)2,((long)-4105),vtMissing);

	//m_Range.AttachDispatch(m_Sheet.get_Range(COleVariant(_T("A2")),COleVariant(_T("D5"))));
	//_variant_t v1;  //线型
	//_variant_t v2;  //宽度
	//_variant_t v3;  //颜色
	//v1.vt=VT_I2;
	//v1.lVal=2; // 线的样式：- no line; 1-solid; 2-big dot;3-small dot;4-dash dot; 5-dash dot dot; 
	//v2.vt=v1.vt
	//v2.lVal=3; // 线的粗细程度
	//v3.vt=v1.vt;
	//v3.lVal=1; // 1-black;2-white;3-red;4-green;5-blue; 6-yellow; 7-pink;8-dark blue; 
	//m_Range.BorderAround(v1, v2, v3, vtMissing);//设置边框
}


bool CExcelWrapper::SetCellText(int nRows, int nCols, LPCTSTR lpszString)
{
	if(NULL == lpszString || nCols < 1 || nCols > 702 || nRows < 1) 
		return false;

	CString str;
	if(nCols > 26)
	{
		str.Format(_T("%c%c%d"), (nCols-1) / 26 + 64, (nCols-1) % 26 + 1 + 64, nRows);
	}
	else
	{
		str.Format(_T("%c%d"), nCols + 64, nRows);
	}

	m_Range = m_Sheet.get_Range(COleVariant(str), COleVariant(str));
	m_Range.put_Value2(COleVariant(lpszString));

	return true;
}

bool CExcelWrapper::SetCellColor(int nRows, int nCols, int nColorIndex)
{
	if(nColorIndex < 1 || nColorIndex > 8 || nCols < 1 || nCols > 702 || nRows < 1) 
	  return false;
	
	CString str;
	if(nCols > 26)
	{
		str.Format(_T("%c%c%d"), (nCols-1) / 26 + 64, (nCols-1) % 26 + 1 + 64, nRows);
	}
	else
	{
		str.Format(_T("%c%d"), nCols + 64, nRows);
	}
	m_Range = m_Sheet.get_Range(COleVariant(str), COleVariant(str));
	
	m_Nterior = m_Range.get_Interior();
	m_Nterior.put_ColorIndex(_variant_t(nColorIndex));
	return true;
}

bool CExcelWrapper::MakeSureCreatePath(CString strPath)
{
	int nSize = strPath.GetLength() * 2 + 1; 

	wchar_t *pWchar_t = strPath.GetBuffer();
	char *pChar = new char[nSize];

	if(NULL == pChar)
		return false;

	memset(pChar, 0, (size_t)nSize);
	wcstombs(pChar, pWchar_t, nSize);  

	if (!MakeSureDirectoryPathExists(pChar))
		return false;
	
	delete []pChar;
	return true;
}

bool CExcelWrapper::SaveExcel(CString strPath)
{
	if(_T("") == strPath)
		return false;

	MakeSureCreatePath(strPath);
	//m_Cols = m_Range.get_EntireColumn();
	//m_Cols.AutoFit();
	m_Book.SaveCopyAs(COleVariant(strPath));
	m_Book.put_Saved(true);

	return true;
}

最后给出简单的demo；

CExcelWrapper excel;
	
excel.CreateInterface();

int nRow = 10, nCol = 10;

// 数据写入
    
excel.SetCellText(nRow, nCol, _T("LXB"));
			
CString strPath;
    
strPath = _T("C:\Excel.xlsx");

excel.SaveExcel(strXlsxPath);

excel.ReleaseInterface();