private void exportReport2Excel(
      ExportMaterialReportBean bean,
      ExportMaterialReportDTO results,
      HttpServletRequest request,
      HttpServletResponse response) {
    try {
      String outputFileName =
          "/files/temp/BaoCaoNhapXuatTonNPL" + System.currentTimeMillis() + ".xls";
      String reportTemplate =
          request
              .getSession()
              .getServletContext()
              .getRealPath("/files/export/ExportMaterialReport.xls");
      String export2FileName = request.getSession().getServletContext().getRealPath(outputFileName);

      Workbook templateWorkbook = Workbook.getWorkbook(new File(reportTemplate));
      WritableWorkbook workbook =
          Workbook.createWorkbook(new File(export2FileName), templateWorkbook);

      WritableSheet sheet = workbook.getSheet(0);

      WritableFont normalFont =
          new WritableFont(
              WritableFont.TIMES,
              12,
              WritableFont.NO_BOLD,
              false,
              UnderlineStyle.NO_UNDERLINE,
              jxl.format.Colour.BLACK);
      WritableCellFormat normalFormat = new WritableCellFormat(normalFont);
      normalFormat.setAlignment(Alignment.LEFT);
      normalFormat.setWrap(true);
      normalFormat.setBorder(jxl.format.Border.ALL, jxl.format.BorderLineStyle.THIN);

      WritableFont boldFont =
          new WritableFont(
              WritableFont.TIMES,
              12,
              WritableFont.BOLD,
              false,
              UnderlineStyle.NO_UNDERLINE,
              jxl.format.Colour.BLACK);
      WritableCellFormat headerFormat = new WritableCellFormat(boldFont);
      headerFormat.setAlignment(Alignment.CENTRE);
      headerFormat.setVerticalAlignment(VerticalAlignment.CENTRE);
      headerFormat.setWrap(true);
      headerFormat.setBorder(jxl.format.Border.ALL, jxl.format.BorderLineStyle.THIN);
      headerFormat.setBackground(jxl.format.Colour.GRAY_25);

      WritableCellFormat boldFormat = new WritableCellFormat(boldFont);
      boldFormat.setAlignment(Alignment.CENTRE);
      boldFormat.setWrap(true);
      boldFormat.setBorder(jxl.format.Border.ALL, jxl.format.BorderLineStyle.THIN);

      DecimalFormat decimalFormat = new DecimalFormat("###,###.##");

      Date from = bean.getFromDate();
      Label fromCell =
          new Label(
              1, 1, from != null ? DateUtils.date2String(from, "dd/MM/yyyy") : "", boldFormat);
      sheet.addCell(fromCell);

      Date to = bean.getToDate();
      Label toCell =
          new Label(1, 2, to != null ? DateUtils.date2String(to, "dd/MM/yyyy") : "", boldFormat);
      sheet.addCell(toCell);

      int startRow = 5;
      List<ExportMaterialReportDetailDTO> initialValue = results.getInitialValue();
      Map<String, Double> mapImportValue = results.getMapImportValue();
      Map<String, Double> mapExportUtilDateValue = results.getMapExportUtilDateValue();
      Map<String, Double> mapExportDuringDateValue = results.getMapExportDuringDateValue();
      int index;
      CellValue[] resValue;
      Double iVal;
      Double exportToVal;
      Double importVal;
      Double exportVal;
      Double remainVal;
      String key, origin;
      for (ExportMaterialReportDetailDTO initVal : initialValue) {
        origin = initVal.getOrigin() != null ? initVal.getOrigin().getOriginID().toString() : "";
        key = initVal.getMaterial().getMaterialID() + "_" + origin;
        exportToVal =
            mapExportUtilDateValue.get(key) != null ? mapExportUtilDateValue.get(key) : 0d;
        iVal =
            initVal.getQuantity() != null ? initVal.getQuantity() - exportToVal : 0 - exportToVal;
        importVal = mapImportValue.get(key) != null ? mapImportValue.get(key) : 0d;
        exportVal =
            mapExportDuringDateValue.get(key) != null ? mapExportDuringDateValue.get(key) : 0d;
        remainVal = iVal + importVal - exportVal;
        index = 0;
        resValue = new CellValue[10];

        resValue[index++] =
            new CellValue(
                CellDataType.STRING,
                initVal.getOrigin() != null ? initVal.getOrigin().getName() : "");
        resValue[index++] =
            new CellValue(
                CellDataType.STRING,
                initVal.getMaterial() != null ? initVal.getMaterial().getName() : "");
        resValue[index++] =
            new CellValue(
                CellDataType.STRING,
                StringUtils.isNotBlank(initVal.getCode()) ? initVal.getCode() : "");
        resValue[index++] =
            new CellValue(
                CellDataType.STRING,
                initVal.getMaterial() != null
                    ? initVal.getMaterial().getUnit() != null
                        ? initVal.getMaterial().getUnit().getName()
                        : ""
                    : "");
        resValue[index++] = new CellValue(CellDataType.STRING, decimalFormat.format(iVal));
        resValue[index++] = new CellValue(CellDataType.STRING, decimalFormat.format(importVal));
        resValue[index++] = new CellValue(CellDataType.STRING, decimalFormat.format(exportVal));
        resValue[index++] = new CellValue(CellDataType.STRING, decimalFormat.format(remainVal));
        resValue[index++] = new CellValue(CellDataType.STRING, "");
        resValue[index++] =
            new CellValue(
                CellDataType.STRING,
                initVal.getImportDate() != null
                    ? DateUtils.date2String(initVal.getImportDate(), "dd/MM/yyyy")
                    : "");

        ExcelUtil.addRow(
            sheet, startRow++, resValue, normalFormat, normalFormat, normalFormat, normalFormat);
      }
      workbook.write();
      workbook.close();
      response.sendRedirect(
          request.getSession().getServletContext().getContextPath() + outputFileName);
    } catch (Exception ex) {
      logger.error(ex.getMessage(), ex);
    }
  }
  private void exportUsedMaterial2Excel(
      SearchUsedMaterialBean bean,
      SummaryUsedMaterialDTO result,
      HttpServletRequest request,
      HttpServletResponse response) {
    try {
      String outputFileName = "/files/temp/VatTuSuDung_" + System.currentTimeMillis() + ".xls";
      String reportTemplate =
          request.getSession().getServletContext().getRealPath("/files/export/UsedMaterial.xls");
      String export2FileName = request.getSession().getServletContext().getRealPath(outputFileName);

      Workbook templateWorkbook = Workbook.getWorkbook(new File(reportTemplate));
      WritableWorkbook workbook =
          Workbook.createWorkbook(new File(export2FileName), templateWorkbook);

      WritableSheet sheet = workbook.getSheet(0);

      WritableFont normalFont =
          new WritableFont(
              WritableFont.TIMES,
              12,
              WritableFont.NO_BOLD,
              false,
              UnderlineStyle.NO_UNDERLINE,
              Colour.BLACK);
      WritableCellFormat normalFormat = new WritableCellFormat(normalFont);
      normalFormat.setAlignment(Alignment.CENTRE);
      normalFormat.setWrap(true);
      normalFormat.setBorder(jxl.format.Border.ALL, jxl.format.BorderLineStyle.THIN);
      DecimalFormat decimalFormat = new DecimalFormat("###,###.##");
      DecimalFormat decimalFormat2 = new DecimalFormat("###,###.####");
      int startRow = 4;
      int stt = 1;

      List<UsedMaterialDTO> shareUsedMaterials = result.getShareUsedMaterials();
      List<UsedMaterialDTO> usedProducts = result.getUsedProducts();
      List<UsedMaterialDTO> usedMeasurementMaterials = result.getUsedMeasurementMaterials();
      Double totalMainProductKg = 0d;
      Double totalMainProductMet2 = 0d;
      Integer counter = 0;
      Double totalMet2 = 0d;
      Double totalKg = 0d;
      Double kgMet;
      Double kgTan;
      Double materialUsed;

      if (usedProducts != null && usedProducts.size() > 0) {
        for (UsedMaterialDTO usedProduct : usedProducts) {
          totalKg = usedProduct.getTotalKgUsed();
          totalMet2 = usedProduct.getTotalMUsed() * Integer.valueOf(usedProduct.getWidth()) / 1000;
          counter++;
          totalMainProductKg += totalKg;
          totalMainProductMet2 += totalMet2;

          addUsedMaterialRow(
              sheet,
              normalFormat,
              decimalFormat,
              decimalFormat2,
              startRow++,
              counter,
              usedProduct.getProductName().getName(),
              "Kg",
              totalKg,
              null,
              null);

          if (usedProduct.getUsedMaterialDTOs() != null
              && usedProduct.getUsedMaterialDTOs().size() > 0) {
            for (UsedMaterialDTO usedMaterial : usedProduct.getUsedMaterialDTOs()) {
              counter++;
              materialUsed = usedMaterial.getTotalUsed();
              kgMet = totalMet2 > 0 ? materialUsed / totalMet2 : null;
              kgTan = totalKg > 0 ? materialUsed * 1000 / totalKg : null;
              addUsedMaterialRow(
                  sheet,
                  normalFormat,
                  decimalFormat,
                  decimalFormat2,
                  startRow++,
                  counter,
                  usedMaterial.getMaterial().getName(),
                  usedMaterial.getMaterial().getUnit().getName(),
                  materialUsed,
                  kgMet,
                  kgTan);
            }
          }
        }
      }

      if (usedMeasurementMaterials != null && usedMeasurementMaterials.size() > 0) {
        for (UsedMaterialDTO usedMaterial : usedMeasurementMaterials) {
          counter++;
          materialUsed = usedMaterial.getTotalUsed();
          kgMet = totalMet2 > 0 ? materialUsed / totalMainProductMet2 : null;
          kgTan = totalKg > 0 ? materialUsed * 1000 / totalMainProductKg : null;
          addUsedMaterialRow(
              sheet,
              normalFormat,
              decimalFormat,
              decimalFormat2,
              startRow++,
              counter,
              usedMaterial.getMaterial().getName(),
              usedMaterial.getMaterial().getUnit().getName(),
              materialUsed,
              kgMet,
              kgTan);
        }
      }

      if (shareUsedMaterials != null && shareUsedMaterials.size() > 0) {
        for (UsedMaterialDTO usedMaterial : shareUsedMaterials) {
          counter++;
          materialUsed = usedMaterial.getTotalUsed();
          kgMet = totalMet2 > 0 ? materialUsed / totalMainProductMet2 : null;
          kgTan = totalKg > 0 ? materialUsed * 1000 / totalMainProductKg : null;
          addUsedMaterialRow(
              sheet,
              normalFormat,
              decimalFormat,
              decimalFormat2,
              startRow++,
              counter,
              usedMaterial.getMaterial().getName(),
              usedMaterial.getMaterial().getUnit().getName(),
              materialUsed,
              kgMet,
              kgTan);
        }
      }
      workbook.write();
      workbook.close();
      response.sendRedirect(
          request.getSession().getServletContext().getContextPath() + outputFileName);
    } catch (Exception ex) {
      logger.error(ex.getMessage(), ex);
    }
  }