Autobio_API/codegit/CallCenterCo.../CallCenter.U.../NPOI/NPOIHelper.cs


using System;
using System.Data;
using System.IO;
using System.Text;
using System.Web;
using NPOI.HSSF.UserModel;
using NPOI.SS.UserModel;
using NPOI.SS.Util;
using NPOI.XSSF.UserModel;
using CallCenterApi.DB;

namespace CallCenter.Utility
{
    public class NPOIHelper
    {
        private string _title;
        private string _sheetName;
        private string _filePath;

        /// <summary>
        /// 导出到Excel
        /// </summary>
        /// <param name="table"></param>
        /// <returns></returns>
        public bool ToExcel(DataTable table, string[] columns = null)
        {
            FileStream fs = new FileStream(this._filePath, FileMode.OpenOrCreate, FileAccess.ReadWrite);
            IWorkbook workBook = new HSSFWorkbook();
            if (string.IsNullOrWhiteSpace(this._sheetName))
            {
                this._sheetName = "sheet1";
            }

            ISheet sheet = workBook.CreateSheet(this._sheetName);

            //处理表格标题
            IRow row = sheet.CreateRow(0);
            row.CreateCell(0).SetCellValue(this._title);
            sheet.AddMergedRegion(new CellRangeAddress(0, 0, 0, table.Columns.Count - 1));
            row.Height = 500;

            ICellStyle cellStyle = workBook.CreateCellStyle();
            IFont font = workBook.CreateFont();
            font.FontName = "微软雅黑";
            font.FontHeightInPoints = 17;
            cellStyle.SetFont(font);
            cellStyle.VerticalAlignment = VerticalAlignment.Center;
            cellStyle.Alignment = HorizontalAlignment.Center;
            row.Cells[0].CellStyle = cellStyle;

            //处理表格列头
            row = sheet.CreateRow(1);
            if (columns == null)
            {
                for (int i = 0; i < table.Columns.Count; i++)
                {
                    row.CreateCell(i).SetCellValue(table.Columns[i].ColumnName);
                    row.Height = 350;
                    sheet.AutoSizeColumn(i);
                }
            }
            else
            {
                for (int i = 0; i < columns.Length; i++)
                {
                    row.CreateCell(i).SetCellValue(columns[i]);
                    row.Height = 350;
                    sheet.AutoSizeColumn(i);
                }
            }




            //处理数据内容
            for (int i = 0; i < table.Rows.Count; i++)
            {
                row = sheet.CreateRow(2 + i);
                row.Height = 250;
                for (int j = 0; j < table.Columns.Count; j++)
                {
                    row.CreateCell(j).SetCellValue(table.Rows[i][j].ToString());
                    sheet.SetColumnWidth(j, 256 * 15);
                }
            }

            //写入数据流
            workBook.Write(fs);
            fs.Flush();
            fs.Close();

            return true;
        }

        /// <summary>
        /// 导出到Excel
        /// </summary>
        /// <param name="table"></param>
        /// <param name="title"></param>
        /// <param name="sheetName">空字符串或null的话默认sheet1</param>
        /// <param name="columns">自定义表格列头，默认null</param>
        /// <returns></returns>
        public bool ToExcel(DataTable table, string title, string sheetName, string filePath, string[] columns = null)
        {
            this._title = title;
            this._sheetName = sheetName;
            this._filePath = filePath;
            return ToExcel(table, columns);
        }

        /// <summary>
        /// 弹出下载框导出excel
        /// </summary>
        /// <param name="Name"></param>
        /// <param name="dt"></param>
        /// <returns></returns>
        public string ExportToExcel(string Name, DataTable dt, string[] cols = null)
        {
            try
            {
                //if (dt.Rows.Count > 0)
                //{
                HSSFWorkbook workbook = new HSSFWorkbook();
                ISheet sheet = workbook.CreateSheet("Sheet1");

                ICellStyle HeadercellStyle = workbook.CreateCellStyle();
                HeadercellStyle.BorderBottom = NPOI.SS.UserModel.BorderStyle.Thin;
                HeadercellStyle.BorderLeft = NPOI.SS.UserModel.BorderStyle.Thin;
                HeadercellStyle.BorderRight = NPOI.SS.UserModel.BorderStyle.Thin;
                HeadercellStyle.BorderTop = NPOI.SS.UserModel.BorderStyle.Thin;
                HeadercellStyle.Alignment = HorizontalAlignment.Center;
                HeadercellStyle.FillForegroundColor = NPOI.HSSF.Util.HSSFColor.SkyBlue.Index;
                HeadercellStyle.FillPattern = FillPattern.SolidForeground;
                HeadercellStyle.FillBackgroundColor = NPOI.HSSF.Util.HSSFColor.SkyBlue.Index;

                //字体
                NPOI.SS.UserModel.IFont headerfont = workbook.CreateFont();
                headerfont.Boldweight = (short)FontBoldWeight.Bold;
                headerfont.FontHeightInPoints = 12;
                HeadercellStyle.SetFont(headerfont);


                //用column name 作为列名
                int icolIndex = 0;
                IRow headerRow = sheet.CreateRow(0);
                if (cols == null || (cols != null && cols.Length == 0))
                {
                    foreach (DataColumn dc in dt.Columns)
                    {
                        ICell cell = headerRow.CreateCell(icolIndex);
                        cell.SetCellValue(dc.ColumnName);
                        cell.CellStyle = HeadercellStyle;
                        icolIndex++;
                    }
                }
                else
                {
                    foreach (string dc in cols)
                    {
                        ICell cell = headerRow.CreateCell(icolIndex);
                        cell.SetCellValue(dc);
                        cell.CellStyle = HeadercellStyle;
                        icolIndex++;
                    }
                }
                ICellStyle cellStyle = workbook.CreateCellStyle();

                //为避免日期格式被Excel自动替换，所以设定 format 为 『@』 表示一率当成text來看
                cellStyle.DataFormat = HSSFDataFormat.GetBuiltinFormat("@");
                cellStyle.BorderBottom = NPOI.SS.UserModel.BorderStyle.Thin;
                cellStyle.BorderLeft = NPOI.SS.UserModel.BorderStyle.Thin;
                cellStyle.BorderRight = NPOI.SS.UserModel.BorderStyle.Thin;
                cellStyle.BorderTop = NPOI.SS.UserModel.BorderStyle.Thin;


                NPOI.SS.UserModel.IFont cellfont = workbook.CreateFont();
                cellfont.Boldweight = (short)FontBoldWeight.Normal;
                cellStyle.SetFont(cellfont);

                //建立内容行
                int iRowIndex = 0;
                foreach (DataRow dr in dt.Rows)
                {
                    int iCellIndex = 0;
                    IRow irow = sheet.CreateRow(iRowIndex + 1);
                    for (int i = 0; i < dt.Columns.Count; i++)
                    {
                        string strsj = string.Empty;
                        if (dr[i] != null)
                        {
                            strsj = dr[i].ToString();
                        }
                        ICell cell = irow.CreateCell(iCellIndex);
                        cell.SetCellValue(strsj);
                        cell.CellStyle = cellStyle;
                        iCellIndex++;
                    }
                    iRowIndex++;
                }

                //自适应列宽度
                for (int i = 0; i < icolIndex; i++)
                {
                    sheet.AutoSizeColumn(i);
                }

                using (MemoryStream ms = new MemoryStream())
                {
                    workbook.Write(ms);

                    HttpContext curContext = HttpContext.Current;


                    // 设置编码和附件格式
                    curContext.Response.ContentType = "application/vnd.ms-excel";
                    curContext.Response.ContentEncoding = Encoding.UTF8;
                    curContext.Response.Charset = "";
                    curContext.Response.AppendHeader("Content-Disposition",
                        "attachment;filename=" + HttpUtility.UrlEncode(Name + ".xls", Encoding.UTF8));

                    curContext.Response.BinaryWrite(ms.GetBuffer());

                    workbook = null;
                    ms.Close();
                    ms.Dispose();

                    curContext.Response.End();
                }
                //}
                return "";
            }
            catch
            {
                return "导出失败！";
            }
        }

        /// <summary>
        /// 合并单元格
        /// </summary>
        /// <param name="sheet">要合并单元格所在的sheet</param>
        /// <param name="rowstart">开始行的索引</param>
        /// <param name="rowend">结束行的索引</param>
        /// <param name="colstart">开始列的索引</param>
        /// <param name="colend">结束列的索引</param>
        public static void SetCellRangeAddress(ISheet sheet, int rowstart, int rowend, int colstart, int colend)
        {
            CellRangeAddress cellRangeAddress = new CellRangeAddress(rowstart, rowend, colstart, colend);
            sheet.AddMergedRegion(cellRangeAddress);
        }

        /// <summary>
        /// 工单类型弹出下载框导出excel
        /// </summary>
        /// <param name="Name"></param>
        /// <param name="dt"></param>
        /// <param name="typeclass">仪器或试剂</param>
        /// <returns></returns>
        public string ExportToExcelForGDLX(string Name, DataTable dt, string typeclass, string[] colnames, int[] erows)
        {
            try
            {
                //if (dt.Rows.Count > 0)
                //{
                HSSFWorkbook workbook = new HSSFWorkbook();
                ISheet sheet = workbook.CreateSheet("Sheet1");

                ICellStyle HeadercellStyle = workbook.CreateCellStyle();
                HeadercellStyle.BorderBottom = NPOI.SS.UserModel.BorderStyle.Thin;
                HeadercellStyle.BorderLeft = NPOI.SS.UserModel.BorderStyle.Thin;
                HeadercellStyle.BorderRight = NPOI.SS.UserModel.BorderStyle.Thin;
                HeadercellStyle.BorderTop = NPOI.SS.UserModel.BorderStyle.Thin;
                HeadercellStyle.Alignment = HorizontalAlignment.Center;
                HeadercellStyle.FillForegroundColor = NPOI.HSSF.Util.HSSFColor.SkyBlue.Index;
                HeadercellStyle.FillPattern = FillPattern.SolidForeground;
                HeadercellStyle.FillBackgroundColor = NPOI.HSSF.Util.HSSFColor.SkyBlue.Index;

                //字体
                NPOI.SS.UserModel.IFont headerfont = workbook.CreateFont();
                headerfont.Boldweight = (short)FontBoldWeight.Bold;
                headerfont.FontHeightInPoints = 12;
                HeadercellStyle.SetFont(headerfont);


                //用column name 作为列名
                int icolIndex = 0;
                IRow headerRow = sheet.CreateRow(0);
                //if (cols == null || (cols != null && cols.Length == 0))
                //{
                //    foreach (DataColumn dc in dt.Columns)
                //    {
                //        ICell cell = headerRow.CreateCell(icolIndex);
                //        cell.SetCellValue(dc.ColumnName);
                //        cell.CellStyle = HeadercellStyle;
                //        icolIndex++;
                //    }
                //}
                //else
                //{
                for (int i = 0; i < colnames.Length; i++)
                {
                    ICell cell = headerRow.CreateCell(icolIndex);
                    if (colnames[i] != "")
                    {
                        SetCellRangeAddress(sheet, 0, 0, erows[i], erows[i + 1]);
                    }
                    cell.SetCellValue(colnames[i]);
                    cell.CellStyle = HeadercellStyle;
                    icolIndex++;
                }
                //}



                //IRow headerRow = sheet.CreateRow(0);
                ////下面一行
                //IRow Row3layer = sheet.CreateRow(1);

                #region 添加表格标题
                //DataTable dtNew = new DataTable();
                ////获取仪器类型
                //DataTable dtyq = new DataTable();
                //var sqlyq = " select * from [dbo].[T_RepositoryCategory] where F_ParentId=(select F_CategoryId from[dbo].[T_RepositoryCategory] where F_CategoryName='" + typeclass + "' and F_ParentId = 0 and F_DeleteFlag = 0) ";
                //dtyq = DbHelperSQL.Query(sqlyq).Tables[0];
                //DataRow dr2layer = dtNew.NewRow();
                //dr2layer[0] = "";
                //DataRow dr3layer = dtNew.NewRow();
                //dr3layer[0] = "坐席人员";

                //int partend = 0;

                //if (dtyq != null && dtyq.Rows.Count > 0)
                //{
                //    ICell cell = headerRow.CreateCell(0);
                //    cell.SetCellValue("");
                //    for (int i = 0; i < dtyq.Rows.Count; i++)
                //    {
                //        string colname = dtyq.Rows[i]["F_CategoryName"].ToString();
                //        dr2layer[i] = colname;
                //        //获取三级仪器类型
                //        int cataid = Convert.ToInt32(dtyq.Rows[i]["F_CategoryId"].ToString());
                //        DataTable dtyq3layer = new DataTable();
                //        var sqlyq3layer = " select * from [dbo].[T_RepositoryCategory] where F_ParentId=(select F_CategoryId from[dbo].[T_RepositoryCategory] where 1=1 and F_ParentId = " + cataid + " and F_DeleteFlag = 0) ";
                //        dtyq3layer = DbHelperSQL.Query(sqlyq3layer).Tables[0];
                //        int beginj = 1;
                //        int endj = dtyq3layer.Rows.Count;
                //        if (i != 0)
                //        {
                //            beginj = endj;
                //            endj += dtyq3layer.Rows.Count;
                //        }

                //        ICell cell3layername = Row3layer.CreateCell(0);
                //        cell3layername.SetCellValue("姓名");
                //        for (int j = beginj; j <= endj; j++)
                //        {
                //            string col3layername = dtyq3layer.Rows[i]["F_CategoryName"].ToString();
                //            dr3layer[j] = col3layername;

                //            ICell cells = headerRow.CreateCell(j);
                //            cells.SetCellValue(colname);

                //            ICell cell3layer = Row3layer.CreateCell(j);
                //            cell3layer.SetCellValue(col3layername);
                //        }
                //        SetCellRangeAddress(sheet, 0, 0, beginj, endj);
                //        partend += endj;
                //    }
                //    ICell cell3layerlast = Row3layer.CreateCell(partend);
                //    cell3layerlast.SetCellValue("");
                //    ICell cellsum = headerRow.CreateCell(0);
                //    cell.SetCellValue("总计");
                //}
                #endregion

                ICellStyle cellStyle = workbook.CreateCellStyle();

                //为避免日期格式被Excel自动替换，所以设定 format 为 『@』 表示一率当成text來看
                cellStyle.DataFormat = HSSFDataFormat.GetBuiltinFormat("@");
                cellStyle.BorderBottom = NPOI.SS.UserModel.BorderStyle.Thin;
                cellStyle.BorderLeft = NPOI.SS.UserModel.BorderStyle.Thin;
                cellStyle.BorderRight = NPOI.SS.UserModel.BorderStyle.Thin;
                cellStyle.BorderTop = NPOI.SS.UserModel.BorderStyle.Thin;


                NPOI.SS.UserModel.IFont cellfont = workbook.CreateFont();
                cellfont.Boldweight = (short)FontBoldWeight.Normal;
                cellStyle.SetFont(cellfont);

                //建立内容行
                //int iRowIndex = 0;
                //foreach (DataRow dr in dt.Rows)
                //{
                //    int iCellIndex = 0;
                //    IRow irow = sheet.CreateRow(iRowIndex + 2);
                //    for (int i = 0; i < dt.Columns.Count; i++)
                //    {
                //        string strsj = string.Empty;
                //        if (dr[i] != null)
                //        {
                //            strsj = dr[i].ToString();
                //        }
                //        ICell cell = irow.CreateCell(iCellIndex);
                //        cell.SetCellValue(strsj);
                //        cell.CellStyle = cellStyle;
                //        iCellIndex++;
                //    }
                //    iRowIndex++;
                //}
                //for (int n = 2; n < dt.Rows.Count; n++)
                //{
                //    int iCellIndex = 0;
                //    IRow irow = sheet.CreateRow(iRowIndex + 2);
                //    for (int i = 0; i < dt.Columns.Count; i++)
                //    {
                //        string strsj = string.Empty;
                //        if (dt.Rows[n] != null)
                //        {
                //            strsj = dt.Rows[n].ToString();
                //        }
                //        ICell cell = irow.CreateCell(iCellIndex);
                //        cell.SetCellValue(strsj);
                //        cell.CellStyle = cellStyle;
                //        iCellIndex++;
                //    }
                //    iRowIndex++;
                //}
                //建立内容行
                int iRowIndex = 0;
                foreach (DataRow dr in dt.Rows)
                {
                    int iCellIndex = 0;
                    IRow irow = sheet.CreateRow(iRowIndex + 1);
                    for (int i = 0; i < dt.Columns.Count; i++)
                    {
                        string strsj = string.Empty;
                        if (dr[i] != null)
                        {
                            strsj = dr[i].ToString();
                        }
                        ICell cell = irow.CreateCell(iCellIndex);
                        cell.SetCellValue(strsj);
                        cell.CellStyle = cellStyle;
                        iCellIndex++;
                    }
                    iRowIndex++;
                }
                //自适应列宽度
                for (int i = 0; i < icolIndex; i++)
                {
                    sheet.AutoSizeColumn(i);
                }

                using (MemoryStream ms = new MemoryStream())
                {
                    workbook.Write(ms);

                    HttpContext curContext = HttpContext.Current;


                    // 设置编码和附件格式
                    curContext.Response.ContentType = "application/vnd.ms-excel";
                    curContext.Response.ContentEncoding = Encoding.UTF8;
                    curContext.Response.Charset = "";
                    curContext.Response.AppendHeader("Content-Disposition",
                        "attachment;filename=" + HttpUtility.UrlEncode(Name + ".xls", Encoding.UTF8));

                    curContext.Response.BinaryWrite(ms.GetBuffer());

                    workbook = null;
                    ms.Close();
                    ms.Dispose();

                    curContext.Response.End();
                }
                //}
                return "";
            }
            catch
            {
                return "导出失败！";
            }
        }

        /// <summary>
        /// 导入excel转换为datatable
        /// </summary>
        /// <param name="upfile"></param>
        /// <param name="headrow"></param>
        /// <returns></returns>
        public DataTable ExcelToTable(HttpPostedFile upfile, int headrow)
        {
            DataTable dt = new DataTable();

            IWorkbook workbook = null;

            Stream stream = upfile.InputStream;

            string suffix = upfile.FileName.Substring(upfile.FileName.LastIndexOf(".") + 1).ToLower();
            if (suffix == "xlsx") // 2007版本
            {
                workbook = new XSSFWorkbook(stream);
            }
            else if (suffix == "xls") // 2003版本
            {
                workbook = new HSSFWorkbook(stream);
            }

            //获取excel的第一个sheet
            ISheet sheet = workbook.GetSheetAt(0);

            //获取sheet的第一行
            IRow headerRow = sheet.GetRow(headrow);

            //一行最后一个方格的编号 即总的列数
            int cellCount = headerRow.LastCellNum;
            //最后一列的标号  即总的行数
            int rowCount = sheet.LastRowNum;
            //列名
            for (int i = 0; i < cellCount; i++)
            {
                dt.Columns.Add(headerRow.GetCell(i).ToString());
            }

            for (int i = (sheet.FirstRowNum + headrow + 1); i <= sheet.LastRowNum; i++)
            {
                DataRow dr = dt.NewRow();

                IRow row = sheet.GetRow(i);
                for (int j = row.FirstCellNum; j < cellCount; j++)
                {
                    if (row.GetCell(j) != null)
                    {
                        dr[j] = row.GetCell(j).ToString();
                    }
                }

                dt.Rows.Add(dr);
            }

            sheet = null;
            workbook = null;

            return dt;
        }

        /// <summary>
        /// 导入excel转换为datatable
        /// </summary>
        /// <param name="upfile"></param>
        /// <param name="headrow"></param>
        /// <returns></returns>
        public DataTable ExcelToTable(string fileName, int headrow)
        {
            DataTable dt = new DataTable();

            IWorkbook workbook = null;

            Stream stream = new FileStream(fileName, FileMode.OpenOrCreate);

            string suffix = fileName.Substring(fileName.LastIndexOf(".") + 1).ToLower();
            if (suffix == "xlsx") // 2007版本
            {
                workbook = new XSSFWorkbook(stream);
            }
            else if (suffix == "xls") // 2003版本
            {
                workbook = new HSSFWorkbook(stream);
            }

            //获取excel的第一个sheet
            ISheet sheet = workbook.GetSheetAt(0);

            //获取sheet的第一行
            IRow headerRow = sheet.GetRow(headrow);

            //一行最后一个方格的编号 即总的列数
            int cellCount = headerRow.LastCellNum;
            //最后一列的标号  即总的行数
            int rowCount = sheet.LastRowNum;
            //列名
            for (int i = 0; i < cellCount; i++)
            {
                dt.Columns.Add(headerRow.GetCell(i).ToString());
            }

            for (int i = (sheet.FirstRowNum + headrow + 1); i <= sheet.LastRowNum; i++)
            {
                DataRow dr = dt.NewRow();

                IRow row = sheet.GetRow(i);
                for (int j = row.FirstCellNum; j < cellCount; j++)
                {
                    if (row.GetCell(j) != null)
                    {
                        dr[j] = row.GetCell(j).ToString();
                    }
                }

                dt.Rows.Add(dr);
            }

            sheet = null;
            workbook = null;

            return dt;
        }
    }
}