asp.net core导出导入excel

class Student
{
    public int Id { get; set; }

    public string Name { get; set; }

    public bool IsBanZhang { get; set; }

    public static IEnumerable<Student> GetStudents()
    {
        return new List<Student>
        {
                new Student{Name="小强",Id=1,IsBanZhang=false},
        new Student{Name="小文",Id=2,IsBanZhang=true},
        new Student{Name="小黄",Id=3,IsBanZhang=false},
        new Student{Name="小刚",Id=3,IsBanZhang=false},
        };
    }
}

public IActionResult DownExcel()
{
    var list = Student.GetStudents();
    var excelHeper = new ExcelHelper();
    var config = new List<ExcelGridModel> {
            new ExcelGridModel{name="Id",label="学号", align="left",},
            new ExcelGridModel{name="Name",label="姓名", align="left",},
            new ExcelGridModel{name="IsBanZhang",label="是否班长", align="left",},
    };

    var fileName = "a.excel";

    return excelHeper.ExcelDownload(list, config, fileName);
}

/// <summary>
/// 描 述：NPOI Excel DataTable操作类
/// </summary>
public class ExcelHelper
{
    #region Excel导出方法 ExcelDownload

    /// <summary>
    /// Excel导出下载
    /// </summary>
    /// <typeparam name="T">数据类型</typeparam>
    /// <param name="list">数据源</param>
    /// <param name="columnJson">导出列</param>
    /// <param name="fileName">下载文件名称</param>
    public ActionResult ExcelDownload<T>(IEnumerable<T> list, IEnumerable<ExcelGridModel> columnList, string fileName)
    {
        var excelConfig = ConvertExcelGridModelToConfig(columnList, fileName);

        var rowData = list.ToDataTable(columnList.Select(i => i.name));

        var stream = ExportMemoryStream(rowData, excelConfig);
        return new FileStreamResult(stream, MIMEType.xls) { FileDownloadName = JointXls(fileName) };

    }

    /// <summary>
    /// Excel导出下载
    /// </summary>
    /// <param name="dtSource">DataTable数据源</param>
    /// <param name="excelConfig">导出设置包含文件名、标题、列设置</param>
    public ActionResult ExcelDownload(DataTable dtSource, IEnumerable<ExcelGridModel> columnList, string fileName)
    {
        var excelConfig = ConvertExcelGridModelToConfig(columnList, fileName);
        var stream = ExportMemoryStream(dtSource, excelConfig);
        return new FileStreamResult(stream, MIMEType.xls) { FileDownloadName = JointXls(fileName) };
    }

    /// <summary>
    /// Excel导出下载
    /// </summary>
    /// <param name="dtSource">DataTable数据源</param>
    /// <param name="excelConfig">导出设置包含文件名、标题、列设置</param>
    public ActionResult ExcelDownload(DataTable dtSource, ExcelConfig excelConfig, string fileName)
    {
        var stream = ExportMemoryStream(dtSource, excelConfig);
        return new FileStreamResult(stream, MIMEType.xls) { FileDownloadName = JointXls(fileName) };
    }

    #endregion Excel导出方法 ExcelDownload

    #region DataTable导出到Excel文件excelConfig中FileName设置为全路径

    /// <summary>
    /// DataTable导出到Excel文件 Export()
    /// </summary>
    /// <param name="dtSource">DataTable数据源</param>
    /// <param name="excelConfig">导出设置包含文件名、标题、列设置</param>
    public string ExcelExportToFile(DataTable dtSource, ExcelConfig excelConfig, string fileName)
    {
        fileName = JointXls(fileName);
        using (MemoryStream ms = ExportMemoryStream(dtSource, excelConfig))
        {
            using (FileStream fs = new FileStream(fileName, FileMode.Create, FileAccess.Write))
            {
                byte[] data = ms.ToArray();
                fs.Write(data, 0, data.Length);
                fs.Flush();
            }
        }

        return fileName;
    }


    #endregion DataTable导出到Excel文件excelConfig中FileName设置为全路径

    #region DataTable导出到Excel的MemoryStream

    /// <summary>
    /// DataTable导出到Excel的MemoryStream Export()
    /// </summary>
    /// <param name="dtSource">DataTable数据源</param>
    /// <param name="excelConfig">导出设置包含文件名、标题、列设置</param>
    public MemoryStream ExportMemoryStream(DataTable dtSource, ExcelConfig excelConfig)
    {
        var columnEntity = excelConfig.ColumnEntity;
        if (columnEntity == null || columnEntity.Count == 0)
        {
            if (columnEntity == null)
            {
                columnEntity = new List<ColumnModel>();
            }

            foreach (DataColumn dc in dtSource.Columns)
            {
                columnEntity.Add(new ColumnModel
                {
                    Alignment = "center",
                    Column = dc.ColumnName,
                    ExcelColumn = dc.ColumnName
                });
            }
        }
        else
        {
            int colint = 0;
            for (int i = 0; i < dtSource.Columns.Count;)
            {
                DataColumn column = dtSource.Columns[i];
                if (excelConfig.ColumnEntity[colint].Column != column.ColumnName)
                {
                    dtSource.Columns.Remove(column.ColumnName);
                }
                else
                {
                    i++;
                    if (colint < excelConfig.ColumnEntity.Count - 1)
                    {
                        colint++;
                    }
                }
            }
        }

        HSSFWorkbook workbook = new HSSFWorkbook();
        ISheet sheet = workbook.CreateSheet();

        #region 右击文件 属性信息

        {
            DocumentSummaryInformation dsi = PropertySetFactory.CreateDocumentSummaryInformation();
            dsi.Company = "NPOI";
            workbook.DocumentSummaryInformation = dsi;

            SummaryInformation si = PropertySetFactory.CreateSummaryInformation();
            si.Author = ""; //填加xls文件作者信息
            si.ApplicationName = ""; //填加xls文件创建程序信息
            si.LastAuthor = ""; //填加xls文件最后保存者信息
            si.Comments = ""; //填加xls文件作者信息
            si.Title = ""; //填加xls文件标题信息
            si.Subject = "";//填加文件主题信息
            si.CreateDateTime = System.DateTime.Now;
            workbook.SummaryInformation = si;
        }

        #endregion 右击文件 属性信息

        #region 设置标题样式

        ICellStyle headStyle = workbook.CreateCellStyle();
        int[] arrColWidth = new int[dtSource.Columns.Count];
        string[] arrColName = new string[dtSource.Columns.Count];//列名
        ICellStyle[] arryColumStyle = new ICellStyle[dtSource.Columns.Count];//样式表
        headStyle.Alignment = HorizontalAlignment.Center; // ------------------
        if (excelConfig.Background != new Color())
        {
            if (excelConfig.Background != new Color())
            {
                headStyle.FillPattern = FillPattern.SolidForeground;
                headStyle.FillForegroundColor = GetXLColour(workbook, excelConfig.Background);
            }
        }
        IFont font = workbook.CreateFont();
        font.FontHeightInPoints = excelConfig.TitlePoint;
        if (excelConfig.ForeColor != new Color())
        {
            font.Color = GetXLColour(workbook, excelConfig.ForeColor);
        }
        font.Boldweight = 700;
        headStyle.SetFont(font);

        #endregion 设置标题样式

        #region 列头及样式

        ICellStyle cHeadStyle = workbook.CreateCellStyle();
        cHeadStyle.Alignment = HorizontalAlignment.Center; // ------------------
        IFont cfont = workbook.CreateFont();
        cfont.FontHeightInPoints = excelConfig.HeadPoint;
        cHeadStyle.SetFont(cfont);

        #endregion 列头及样式

        #region 设置内容单元格样式

        foreach (DataColumn item in dtSource.Columns)
        {
            ICellStyle columnStyle = workbook.CreateCellStyle();
            columnStyle.Alignment = HorizontalAlignment.Center;
            arrColWidth[item.Ordinal] = Encoding.UTF8.GetBytes(item.ColumnName.ToString()).Length;
            arrColName[item.Ordinal] = item.ColumnName.ToString();
            if (excelConfig.ColumnEntity != null)
            {
                ColumnModel columnentity = excelConfig.ColumnEntity.Find(t => t.Column == item.ColumnName);
                if (columnentity != null)
                {
                    arrColName[item.Ordinal] = columnentity.ExcelColumn;
                    if (columnentity.Width != 0)
                    {
                        arrColWidth[item.Ordinal] = columnentity.Width;
                    }
                    if (columnentity.Background != new Color())
                    {
                        if (columnentity.Background != new Color())
                        {
                            columnStyle.FillPattern = FillPattern.SolidForeground;
                            columnStyle.FillForegroundColor = GetXLColour(workbook, columnentity.Background);
                        }
                    }
                    if (columnentity.Font != null || columnentity.Point != 0 || columnentity.ForeColor != new Color())
                    {
                        IFont columnFont = workbook.CreateFont();
                        columnFont.FontHeightInPoints = 10;
                        if (columnentity.Font != null)
                        {
                            columnFont.FontName = columnentity.Font;
                        }
                        if (columnentity.Point != 0)
                        {
                            columnFont.FontHeightInPoints = columnentity.Point;
                        }
                        if (columnentity.ForeColor != new Color())
                        {
                            columnFont.Color = GetXLColour(workbook, columnentity.ForeColor);
                        }
                        columnStyle.SetFont(font);
                    }
                    columnStyle.Alignment = getAlignment(columnentity.Alignment);
                }
            }
            arryColumStyle[item.Ordinal] = columnStyle;
        }
        if (excelConfig.IsAllSizeColumn)
        {
            #region 根据列中最长列的长度取得列宽

            for (int i = 0; i < dtSource.Rows.Count; i++)
            {
                for (int j = 0; j < dtSource.Columns.Count; j++)
                {
                    if (arrColWidth[j] != 0)
                    {
                        int intTemp = Encoding.UTF8.GetBytes(dtSource.Rows[i][j].ToString()).Length;
                        if (intTemp > arrColWidth[j])
                        {
                            arrColWidth[j] = intTemp;
                        }
                    }
                }
            }

            #endregion 根据列中最长列的长度取得列宽
        }

        #endregion 设置内容单元格样式

        int rowIndex = 0;

        #region 表头及样式

        if (excelConfig.Title != null)
        {
            IRow headerRow = sheet.CreateRow(rowIndex);
            rowIndex++;
            if (excelConfig.TitleHeight != 0)
            {
                headerRow.Height = (short)(excelConfig.TitleHeight * 20);
            }
            headerRow.HeightInPoints = 25;
            headerRow.CreateCell(0).SetCellValue(excelConfig.Title);
            headerRow.GetCell(0).CellStyle = headStyle;
            sheet.AddMergedRegion(new NPOI.SS.Util.CellRangeAddress(0, 0, 0, dtSource.Columns.Count - 1)); // ------------------
        }

        #endregion 表头及样式

        #region 列头及样式

        {
            IRow headerRow = sheet.CreateRow(rowIndex);
            rowIndex++;

            #region 如果设置了列标题就按列标题定义列头，没定义直接按字段名输出

            foreach (DataColumn column in dtSource.Columns)
            {
                headerRow.CreateCell(column.Ordinal).SetCellValue(arrColName[column.Ordinal]);
                headerRow.GetCell(column.Ordinal).CellStyle = cHeadStyle;
                //设置列宽
                sheet.SetColumnWidth(column.Ordinal, (arrColWidth[column.Ordinal] + 1) * 256);
            }

            #endregion 如果设置了列标题就按列标题定义列头，没定义直接按字段名输出
        }

        #endregion 列头及样式

        ICellStyle dateStyle = workbook.CreateCellStyle();
        IDataFormat format = workbook.CreateDataFormat();
        dateStyle.DataFormat = format.GetFormat("yyyy-mm-dd");

        foreach (DataRow row in dtSource.Rows)
        {
            #region 新建表，填充表头，填充列头，样式

            if (rowIndex == 65535)
            {
                sheet = workbook.CreateSheet();
                rowIndex = 0;

                #region 表头及样式

                {
                    if (excelConfig.Title != null)
                    {
                        IRow headerRow = sheet.CreateRow(rowIndex);
                        rowIndex++;
                        if (excelConfig.TitleHeight != 0)
                        {
                            headerRow.Height = (short)(excelConfig.TitleHeight * 20);
                        }
                        headerRow.HeightInPoints = 25;
                        headerRow.CreateCell(0).SetCellValue(excelConfig.Title);
                        headerRow.GetCell(0).CellStyle = headStyle;
                        sheet.AddMergedRegion(new NPOI.SS.Util.CellRangeAddress(0, 0, 0, dtSource.Columns.Count - 1)); // ------------------
                    }
                }

                #endregion 表头及样式

                #region 列头及样式

                {
                    IRow headerRow = sheet.CreateRow(rowIndex);
                    rowIndex++;

                    #region 如果设置了列标题就按列标题定义列头，没定义直接按字段名输出

                    foreach (DataColumn column in dtSource.Columns)
                    {
                        headerRow.CreateCell(column.Ordinal).SetCellValue(arrColName[column.Ordinal]);
                        headerRow.GetCell(column.Ordinal).CellStyle = cHeadStyle;
                        //设置列宽
                        sheet.SetColumnWidth(column.Ordinal, (arrColWidth[column.Ordinal] + 1) * 256);
                    }

                    #endregion 如果设置了列标题就按列标题定义列头，没定义直接按字段名输出
                }

                #endregion 列头及样式
            }

            #endregion 新建表，填充表头，填充列头，样式

            #region 填充内容

            IRow dataRow = sheet.CreateRow(rowIndex);
            foreach (DataColumn column in dtSource.Columns)
            {
                ICell newCell = dataRow.CreateCell(column.Ordinal);
                newCell.CellStyle = arryColumStyle[column.Ordinal];
                string drValue = row[column].ToString();
                SetCell(newCell, dateStyle, column.DataType, drValue);
            }

            #endregion 填充内容

            rowIndex++;
        }
        //using (MemoryStream ms = new MemoryStream())
        {
            MemoryStream ms = new MemoryStream();
            workbook.Write(ms);
            ms.Flush();
            ms.Position = 0;
            return ms;
        }
    }

    #endregion DataTable导出到Excel的MemoryStream


    #region 设置表格内容

    private void SetCell(ICell newCell, ICellStyle dateStyle, Type dataType, string drValue)
    {
        switch (dataType.ToString())
        {
            case "System.String"://字符串类型
                newCell.SetCellValue(drValue);
                break;

            case "System.DateTime"://日期类型
                System.DateTime dateV;
                if (System.DateTime.TryParse(drValue, out dateV))
                {
                    newCell.SetCellValue(dateV);
                }
                else
                {
                    newCell.SetCellValue("");
                }
                newCell.CellStyle = dateStyle;//格式化显示
                break;

            case "System.Boolean"://布尔型
                bool boolV = false;
                bool.TryParse(drValue, out boolV);
                newCell.SetCellValue(boolV);
                break;

            case "System.Int16"://整型
            case "System.Int32":
            case "System.Int64":
            case "System.Byte":
                int intV = 0;
                int.TryParse(drValue, out intV);
                newCell.SetCellValue(intV);
                break;

            case "System.Decimal"://浮点型
            case "System.Double":
                double doubV = 0;
                double.TryParse(drValue, out doubV);
                newCell.SetCellValue(doubV);
                break;

            case "System.DBNull"://空值处理
                newCell.SetCellValue("");
                break;

            default:
                newCell.SetCellValue("");
                break;
        }
    }

    #endregion 设置表格内容

    #region 从Excel导入
    /// <summary>
    /// 读取excel ,默认第一行为标头
    /// </summary>
    /// <param name="strFileName">excel文档路径</param>
    /// <returns></returns>
    public DataTable ExcelImport(string strFileName)
    {
        return ExcelImport(strFileName, 0);
    }

    /// <summary>
    /// 读取excel ,默认第一行为标头
    /// </summary>
    /// <param name="strFileName">excel文档路径</param>
    /// <param name="headerRowNo">标题行号，以0开始</param>
    /// <returns></returns>
    public DataTable ExcelImport(string strFileName, int headerRowNo)
    {
        ISheet sheet;
        using (FileStream file = new FileStream(strFileName, FileMode.Open, FileAccess.Read))
        {
            if (strFileName.IndexOf(".xlsx", StringComparison.Ordinal) == -1)//2003
            {
                HSSFWorkbook hssfworkbook = new HSSFWorkbook(file);
                sheet = hssfworkbook.GetSheetAt(0);
            }
            else//2007
            {
                XSSFWorkbook xssfworkbook = new XSSFWorkbook(file);
                sheet = xssfworkbook.GetSheetAt(0);
            }
        }

        return ReadSheetToDataTable(headerRowNo, sheet);
    }

    /// <summary>
    /// 读取excel ,默认第一行为标头
    /// </summary>
    /// <param name="fileStream">文件数据流</param>
    /// <returns></returns>
    public DataTable ExcelImport(Stream fileStream, string flieType)
    {
        return ExcelImport(fileStream, flieType, 0);
    }

    /// <summary>
    /// 读取excel ,默认第一行为标头
    /// </summary>
    /// <param name="fileStream">文件数据流</param>
    /// <param name="headerRowNo">标题行号从0开始</param>
    /// <returns></returns>
    public DataTable ExcelImport(Stream fileStream, string flieType, int headerRowNo)
    {
        DataTable dt = new DataTable();
        ISheet sheet = null;
        if (flieType == ".xls")
        {
            HSSFWorkbook hssfworkbook = new HSSFWorkbook(fileStream);
            sheet = hssfworkbook.GetSheetAt(0);
        }
        else
        {
            XSSFWorkbook xssfworkbook = new XSSFWorkbook(fileStream);
            sheet = xssfworkbook.GetSheetAt(0);
        }
        return ReadSheetToDataTable(headerRowNo, sheet);
    }

    /// <summary>
    /// 从sheet中读取数据到DataTable
    /// </summary>
    /// <param name="headerRowNo">标题行号（数据行号=标题行号+1）</param>
    /// <param name="sheet"></param>
    /// <returns></returns>
    private DataTable ReadSheetToDataTable(int headerRowNo, ISheet sheet)
    {
        var dt = new DataTable();
        IRow headerRow = sheet.GetRow(headerRowNo);
        int cellCount = headerRow.LastCellNum;

        for (int j = 0; j < cellCount; j++)
        {
            ICell cell = headerRow.GetCell(j);
            dt.Columns.Add(cell.ToString());
        }

        for (int i = (headerRowNo + 1); i <= sheet.LastRowNum; i++)
        {
            IRow row = sheet.GetRow(i);
            DataRow dataRow = dt.NewRow();

            for (int j = 0; j < cellCount; j++)
            {
                if (row.GetCell(j) == null)
                {
                    continue;
                }

                ICell cell = row.GetCell(j);
                if (cell.CellType == CellType.Error)
                {
                    throw new Exception($"第{i + 1}行，列【{dt.Columns[j].ColumnName}】,单元格格式错误");
                }
                else if (cell.CellType == CellType.Numeric && DateUtil.IsCellDateFormatted(cell))
                {
                    dataRow[j] = cell.DateCellValue;
                }
                else if (cell.CellType == CellType.Numeric)
                {
                    dataRow[j] = cell.NumericCellValue;
                }
                else if (cell.CellType == CellType.Blank)
                {
                    dataRow[j] = "";
                }
                else
                {
                    dataRow[j] = cell.StringCellValue;
                }

                //dataRow[j] = row.GetCell(j).ToString();
            }

            bool existsValue = false;
            foreach (DataColumn column in dt.Columns)
            {
                if (dataRow[column.ColumnName] == null || string.IsNullOrEmpty(dataRow[column.ColumnName].ToString()))
                {
                    continue;
                }

                existsValue = true;
                break;
            }
            if (existsValue)
            {
                dt.Rows.Add(dataRow);
            }
        }
        return dt;
    }

    #endregion 从Excel导入

    #region RGB颜色转NPOI颜色

    private short GetXLColour(HSSFWorkbook workbook, Color SystemColour)
    {
        short s = 0;
        HSSFPalette XlPalette = workbook.GetCustomPalette();
        NPOI.HSSF.Util.HSSFColor XlColour = XlPalette.FindColor(SystemColour.R, SystemColour.G, SystemColour.B);
        if (XlColour == null)
        {
            if (NPOI.HSSF.Record.PaletteRecord.STANDARD_PALETTE_SIZE < 255)
            {
                XlColour = XlPalette.FindSimilarColor(SystemColour.R, SystemColour.G, SystemColour.B);
                s = XlColour.Indexed;
            }
        }
        else
        {
            s = XlColour.Indexed;
        }

        return s;
    }

    #endregion RGB颜色转NPOI颜色

    #region 设置列的对齐方式

    /// <summary>
    /// 设置对齐方式
    /// </summary>
    /// <param name="style"></param>
    /// <returns></returns>
    private HorizontalAlignment getAlignment(string style)
    {
        switch (style)
        {
            case "center":
                return HorizontalAlignment.Center;

            case "left":
                return HorizontalAlignment.Left;

            case "right":
                return HorizontalAlignment.Right;

            case "fill":
                return HorizontalAlignment.Fill;

            case "justify":
                return HorizontalAlignment.Justify;

            case "centerselection":
                return HorizontalAlignment.CenterSelection;

            case "distributed":
                return HorizontalAlignment.Distributed;
        }
        return NPOI.SS.UserModel.HorizontalAlignment.General;
    }

    #endregion 设置列的对齐方式


    #region 辅助方法
    /// <summary>
    /// 如果文件名中没有后缀名，增加文件后缀名
    /// </summary>
    /// <param name="fileName"></param>
    /// <returns></returns>
    private string JointXls(string fileName)
    {
        if (!fileName.EndsWith(".xls"))
        {
            fileName += ".xls";
        }

        return fileName;
    }

    private ExcelConfig ConvertExcelGridModelToConfig(IEnumerable<ExcelGridModel> columnList, string fileName)
    {
        ExcelConfig excelconfig = new ExcelConfig();
        excelconfig.Title = fileName;
        excelconfig.TitleFont = "微软雅黑";
        excelconfig.TitlePoint = 15;
        excelconfig.IsAllSizeColumn = true;
        excelconfig.ColumnEntity = new List<ColumnModel>();
        foreach (ExcelGridModel columnModel in columnList)
        {
            excelconfig.ColumnEntity.Add(new ColumnModel()
            {
                Column = columnModel.name,
                ExcelColumn = columnModel.label,
                Alignment = columnModel.align,
            });
        }

        return excelconfig;
    }

    /// <summary>
    /// MIME文件类型
    /// </summary>
    class MIMEType
    {
        public const string xls = "application/ms-excel";
    }
    #endregion
}

/// <summary>
/// 描 述：Excel导入导出设置
/// </summary>
public class ExcelConfig
{
    
    /// <summary>
    /// 标题
    /// </summary>
    public string Title { get; set; }
    /// <summary>
    /// 前景色
    /// </summary>
    public Color ForeColor { get; set; }
    /// <summary>
    /// 背景色
    /// </summary>
    public Color Background { get; set; }
    private short _titlepoint;
    /// <summary>
    /// 标题字号
    /// </summary>
    public short TitlePoint
    {
        get
        {
            if (_titlepoint == 0)
            {
                return 20;
            }
            else
            {
                return _titlepoint;
            }
        }
        set { _titlepoint = value; }
    }
    private short _headpoint;
    /// <summary>
    /// 列头字号
    /// </summary>
    public short HeadPoint
    {
        get
        {
            if (_headpoint == 0)
            {
                return 10;
            }
            else
            {
                return _headpoint;
            }
        }
        set { _headpoint = value; }
    }
    /// <summary>
    /// 标题高度
    /// </summary>
    public short TitleHeight { get; set; }
    /// <summary>
    /// 列标题高度
    /// </summary>
    public short HeadHeight { get; set; }
    private string _titlefont;
    /// <summary>
    /// 标题字体
    /// </summary>
    public string TitleFont
    {
        get
        {
            if (_titlefont == null)
            {
                return "微软雅黑";
            }
            else
            {
                return _titlefont;
            }
        }
        set { _titlefont = value; }
    }
    private string _headfont;
    /// <summary>
    /// 列头字体
    /// </summary>
    public string HeadFont
    {
        get
        {
            if (_headfont == null)
            {
                return "微软雅黑";
            }
            else
            {
                return _headfont;
            }
        }
        set { _headfont = value; }
    }
    /// <summary>
    /// 是否按内容长度来适应表格宽度
    /// </summary>
    public bool IsAllSizeColumn { get; set; }
    /// <summary>
    /// 列设置
    /// </summary>
    public List<ColumnModel> ColumnEntity { get; set; }

}

/// <summary>
/// 描 述：Excel导入导出列设置模型
/// </summary>
public class ColumnModel
{
    /// <summary>
    /// 列名
    /// </summary>
    public string Column { get; set; }
    /// <summary>
    /// Excel列名
    /// </summary>
    public string ExcelColumn { get; set; }
    /// <summary>
    /// 宽度
    /// </summary>
    public int Width { get; set; }
    /// <summary>
    /// 前景色
    /// </summary>
    public Color ForeColor { get; set; }
    /// <summary>
    /// 背景色
    /// </summary>
    public Color Background { get; set; }
    /// <summary>
    /// 字体
    /// </summary>
    public string Font { get; set; }
    /// <summary>
    /// 字号
    /// </summary>
    public short Point { get; set; }
    /// <summary>
    ///对齐方式
    ///left 左
    ///center 中间
    ///right 右
    ///fill 填充
    ///justify 两端对齐
    ///centerselection 跨行居中
    ///distributed
    /// </summary>
    public string Alignment { get; set; }
}

public class ExcelGridModel
{
    /// <summary>
    /// 属性名称
    /// </summary>
    public string name { get; set; }
    /// <summary>
    /// excel列名
    /// </summary>
    public string label { get; set; }
    /// <summary>
    /// 宽度
    /// </summary>
    public string width { get; set; }
    /// <summary>
    /// 对其方式
    /// </summary>
    public string align { get; set; }
    /// <summary>
    /// 高度
    /// </summary>
    public string height { get; set; }
    /// <summary>
    /// 是否隐藏
    /// </summary>
    public string hidden { get; set; }
}