关于java中出excel文件

Controler层

/**
     * Excel出力ボタンの押下処理
     * @param     ModelAttribute
     * @param     request
     * @param     response
     * @return    なし
     * @throws    なし
    */
    @RequestMapping(params = "reportExcelFile",  method = RequestMethod.POST)
    public void reportExcelFile(@Valid @ModelAttribute CNUDSS010Dto01 dto,
            HttpServletRequest request,HttpServletResponse response, HttpSession session) throws IOException{
        try {
            CNUDSS010Dto01 dto01 = (CNUDSS010Dto01)session.getAttribute("CNUDSS010Dto");

            // 画面再表示
            //setComboxAttributes(dto);
            //setSelectFileList(dto);

            //テンプレートブックを取得して設定する
            String dPath = messageSource.getMessage("CNUDSS0001.TEMPLATE_FILE_PATH", null, LocaleContextHolder.getLocale());
            String absPath = request.getSession().getServletContext().getRealPath("/");
            String strTempFilePath = absPath + File.separator + dPath;
            String strTempFileNm = messageSource.getMessage("CNUDSS0001.TEMPLATE_FILE_NAME",
                    null, LocaleContextHolder.getLocale());

            //出力処理を実行する
            byte[] content = serviceOutput.reportExcelFile(dto01,strTempFilePath,strTempFileNm);
            InputStream is = new ByteArrayInputStream(content);

            //システム日時
            Date day=new Date();
            SimpleDateFormat df=new SimpleDateFormat("yyyyMMddHHmmss");
            String sNow=df.format(day);
            // 社員番号
            String strUserId = SystemInfoHolder.getSystemInfo().getCbmUser().getShainNo();
            //ファイル名：ファイル詳細ランキング_社員番号_YYYYMMDDHHMMSS.xlsx
            String ExcelName=messageSource.getMessage("CNUDSS0001.EXCEL_HEAD_NAME", null, LocaleContextHolder.getLocale());
            String outputFileNm=ExcelName +"_" + strUserId +"_" + sNow ;

            //responseセット
            response.reset();
            response.setContentType("application/x-xls;charset=utf-8");
            response.setHeader("Content-Disposition", "attachment;filename="+ URLEncoder.encode(outputFileNm, "UTF-8") + ".xlsx");
            ServletOutputStream out = response.getOutputStream();
            BufferedInputStream bis = null;
            BufferedOutputStream bos = null;
            try {
                bis = new BufferedInputStream(is);
                bos = new BufferedOutputStream(out);
                byte[] buff = new byte[2048];
                int bytesRead;
                // Simple read/write loop.
                while (-1 != (bytesRead = bis.read(buff, 0, buff.length))) {
                    bos.write(buff, 0, bytesRead);
                }
            } catch (final IOException e) {
                throw e;
            } finally {
                if (bis != null) {
                    bis.close();
                }
                if (bos != null) {
                    bos.close();
                }
                if (is!=null) {
                    is.close();
                }
                if (out !=null) {
                    out.close();
                }
            }
        }catch(Exception ex) {
            //処理なし
        }
        return;
    }

Service层

package jp.co.fujita.cbm.knowledge.service;

import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;

import org.apache.poi.ss.usermodel.CellStyle;
import org.apache.poi.ss.usermodel.CellType;
import org.apache.poi.ss.util.CellRangeAddress;
import org.apache.poi.xssf.usermodel.XSSFCell;
import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.MessageSource;
import org.springframework.context.i18n.LocaleContextHolder;
import org.springframework.stereotype.Service;

import jp.co.fujita.cbm.knowledge.dto.CNUDSS010Dto01;
import jp.co.fujita.cbm.knowledge.dto.CNUDSS010Dto02;

@Service
public class CNUDSR0001ServiceImpl implements CNUDSR0001Service {

    @Autowired
    CNUDSS010Service service;

    @Autowired
    MessageSource messageSource;

    /**
     * 未活用データ一覧表示画面結果はEXCELファイルまでに出力すること
     *
     * @param ランキング一覧のDto
     * @param テンプレートファイルのパス
     * @param テンプレートファイルの名前
     * @return 出力ファイルのバイト配列
     * @throws IOException
     */
    public byte[] reportExcelFile(CNUDSS010Dto01 paramDto, String strTempFilePath, String strTempFileNm)
            throws IOException {

        // 閲覧数ランキング一覧リスト
        ArrayList<CNUDSS010Dto02> listEtsuransu = paramDto.getMikayoResultList();

        // テンプレートブックを取得する
        File tmpfile = new File(strTempFilePath + File.separator + strTempFileNm);
        FileInputStream in = new FileInputStream(tmpfile);
        XSSFWorkbook toWb = new XSSFWorkbook(in);
        XSSFSheet toWs = toWb.getSheetAt(0);

        // シート名前を変更する
        String sheetName = messageSource.getMessage("CNUDSS0001.SHEET_NAME", null, LocaleContextHolder.getLocale());
        toWb.setSheetName(0, sheetName);

        // ヘッダ部にラベルを記入する
        writeHead(toWs);

        int headerRowCnt = 9;
        int maxColumn = 11;
        int maxRow = listEtsuransu.size() + headerRowCnt;
        XSSFRow srcRow;
        XSSFRow destRow;

        srcRow = toWs.getRow(9);
        Map<Integer,CellStyle> mapCellStyle = new HashMap<Integer,CellStyle>();
        for (int j = srcRow.getFirstCellNum(); j < srcRow.getLastCellNum(); j++) {
            //セルのタイプが設定される
            CellStyle fromStyle = srcRow.getCell(j).getCellStyle();
            CellStyle style = toWb.createCellStyle();
            style.cloneStyleFrom(fromStyle);
            //style.setWrapText(true);
            mapCellStyle.put(j, style);
        }

        // 空白行を作成する
        for (int i = 10; i < maxRow; i++) {
            srcRow = toWs.getRow(9);
            destRow = toWs.createRow(i);

            if (srcRow != null) {
                // 結果行をコピーする
                copyRow(srcRow, destRow, mapCellStyle);
            }
        }

        // 改ページを設定する
        toWb.setPrintArea(0, 0, maxColumn, 0, maxRow);

        String StrDutyCategory = "";
        String StrEnterpriseCategory = "";
        String StrFileCategory = "";
        if (paramDto.getEnterpriseSubCategoryStr() != null && paramDto.getDutyCategoryStr() != null
                && paramDto.getFileCategoryStr() != null) {

            String[] strFileArr = paramDto.getFileCategoryStr().split("//");
            String[] strDutyArr = paramDto.getDutyCategoryStr().split("//");
            String[] strEnterpriseArr = paramDto.getEnterpriseCategoryStr().split("//");
            String[] orderEnterpriseDetail;
            String[] orderDutyDetail;
            String[] orderFileDetail;
            if (paramDto.getEnterpriseCategory() != null) {

                // 事業カテゴリのセッション情報設定
                for (int i = 0; i < strEnterpriseArr.length; i++) {
                    orderEnterpriseDetail = strEnterpriseArr[i].split("##");
                    if (orderEnterpriseDetail.length > 0) {
                        if (paramDto.getEnterpriseCategory().trim().equals(orderEnterpriseDetail[0].trim())) {

                            StrEnterpriseCategory = orderEnterpriseDetail[1];
                            break;
                        }
                    }
                }
            }

            if (paramDto.getDutyCategory() != null) {
                // 職務カテゴリのセッション情報設定
                for (int i = 0; i < strDutyArr.length; i++) {
                    orderDutyDetail = strDutyArr[i].split("##");
                    if (orderDutyDetail.length > 0) {
                        if (paramDto.getEnterpriseCategory().trim().equals(orderDutyDetail[0].trim())) {

                            if (paramDto.getEnterpriseSubCategory().trim().equals(orderDutyDetail[1].trim())) {
                                if (paramDto.getDutyCategory().trim().equals(orderDutyDetail[2].trim())) {

                                    StrDutyCategory = orderDutyDetail[3];
                                    break;
                                }
                            }
                        }
                    }
                }
            }

            if (paramDto.getFileCategory() != null) {

                // ファイルカテゴリのセッション情報設定
                for (int i = 0; i < strFileArr.length; i++) {
                    orderFileDetail = strFileArr[i].split("##");
                    if (orderFileDetail.length > 0) {
                        if (paramDto.getFileCategory().trim().equals(orderFileDetail[0].trim())) {

                            StrFileCategory = orderFileDetail[1];
                            break;
                        }
                    }
                }

            }

        }

        // ダウンロード日
        setCellValue(toWs, 1, 10, new SimpleDateFormat("yyyy/MM/dd").format(new Date()));
        // ファイルカテゴリ
        setCellValue(toWs, 3, 2, StrFileCategory);
        // 事業種別
        setCellValue(toWs, 4, 2, StrEnterpriseCategory);
        // 職務種別
        setCellValue(toWs, 5, 2, StrDutyCategory);
        // 集計期間(YYYY/MM)
        String strkikanFrom = String.valueOf(paramDto.getPeriodFrom());
        String strkikanTo = String.valueOf(paramDto.getPeriodTo());
        if ("".equals(strkikanTo)) {
            strkikanTo = new SimpleDateFormat("yyyy/MM").format(new Date());
        }
        setCellValue(toWs, 7, 2, strkikanFrom + "～" + strkikanTo);

        int RowIndex;
        XSSFRow tempRow;

        // 閲覧数ランキングを出力する
        for (int i = 0; i < listEtsuransu.size(); i++) {
            RowIndex = i + headerRowCnt;
            tempRow = toWs.getRow(RowIndex);
            // NO
            tempRow.getCell(0).setCellValue(i + 1);
            // ファイル名
            tempRow.getCell(1).setCellValue(listEtsuransu.get(i).getFileName().trim());
            if (listEtsuransu.get(i).getViews() != null) {
                // 閲覧回数
                tempRow.getCell(2).setCellValue(listEtsuransu.get(i).getViews());
            } else {
                tempRow.getCell(2).setCellValue("");
            }
            if (listEtsuransu.get(i).getComments() != null) {
                // コメント数
                tempRow.getCell(3).setCellValue(listEtsuransu.get(i).getComments());
            } else {
                tempRow.getCell(3).setCellValue("");
            }
            if (listEtsuransu.get(i).getPoint() != null) {
                // ポイント
                tempRow.getCell(4).setCellValue(listEtsuransu.get(i).getPoint());
            } else {
                tempRow.getCell(4).setCellValue("");
            }
            if (listEtsuransu.get(i).getFileCategory() != null) {
                // ファイルカテゴリ
                tempRow.getCell(5).setCellValue(listEtsuransu.get(i).getFileCategory().trim());
            } else {
                tempRow.getCell(5).setCellValue("");
            }
            if (listEtsuransu.get(i).getLanguage() != null) {
                // 言語
                tempRow.getCell(6).setCellValue(listEtsuransu.get(i).getLanguage().trim());
            } else {
                tempRow.getCell(6).setCellValue("");
            }
            if (listEtsuransu.get(i).getDocumentCreator() != null) {
                // ドキュメント作成者
                tempRow.getCell(7).setCellValue(listEtsuransu.get(i).getDocumentCreator().trim());
            } else {
                tempRow.getCell(7).setCellValue("");
            }
            if (listEtsuransu.get(i).getExpirationDate() != null) {
                // 有効期限
                tempRow.getCell(8).setCellValue(listEtsuransu.get(i).getExpirationDate().trim());
            } else {
                tempRow.getCell(8).setCellValue("");
            }
            if (listEtsuransu.get(i).getRegistrationDate() != null) {
                // 登録日
                tempRow.getCell(9).setCellValue(listEtsuransu.get(i).getRegistrationDate().trim());
            } else {
                tempRow.getCell(9).setCellValue("");
            }
            if (listEtsuransu.get(i).getUpdateDate() != null) {
                // 更新日
                tempRow.getCell(10).setCellValue(listEtsuransu.get(i).getUpdateDate().trim());
            } else {
                tempRow.getCell(10).setCellValue("");
            }
        }

        ByteArrayOutputStream os = new ByteArrayOutputStream();
        try {
            toWb.write(os);
            toWb.close();
        } catch (IOException e) {
            throw e;
        }finally {
            if (os != null) {
                os.close();
            }
            if (toWb !=null ) {
                toWb.close();
            }
        }

        byte[] content = os.toByteArray();
        return content;
    }

    /**
     * 様式を持って行をコピーする
     *
     * @param 様式を持ってシート
     * @param 対象シート
     * @param 様式を持って行
     * @param 対象行
     */
    public static void copyRow(XSSFRow srcRow, XSSFRow destRow,Map<Integer,CellStyle> mapCellStyle) {

        XSSFCell oldCell;
        XSSFCell newCell;
        for (int j = srcRow.getFirstCellNum(); j <= srcRow.getLastCellNum(); j++) {
            oldCell = srcRow.getCell(j); // old cell
            newCell = destRow.getCell(j); // new cell

            if (oldCell != null) {
                if (newCell == null) {
                    newCell = destRow.createCell(j);
                }

                if (mapCellStyle.get(oldCell.getColumnIndex()) != null) {
                    newCell.setCellStyle(mapCellStyle.get(oldCell.getColumnIndex()));
                    newCell.setCellType(CellType.BLANK);
                }
            }
        }

    }

    /**
     * 結合セルを取得する
     *
     * @param 対象シート
     * @param 対象行
     * @param 対象列
     * @return 結合セル
     */
    public static CellRangeAddress getMergedRegion(XSSFSheet sheet, int rowNum, short cellNum) {
        CellRangeAddress merged;
        for (int i = 0; i < sheet.getNumMergedRegions(); i++) {
            merged = sheet.getMergedRegion(i);
            if (merged.isInRange(rowNum, cellNum)) {
                return merged;
            }
        }
        return null;
    }

    /**
     * 出力シートのヘッダ部にラベルを記入する
     *
     * @param 出力シート
     */
    public void writeHead(XSSFSheet destSheet) {

        String strHead;
        // 【未活用データ一覧】
        strHead = messageSource.getMessage("CNUDSS0001.LA_NONE_USED_DATA_LIST", null, LocaleContextHolder.getLocale());
        setCellValue(destSheet, 1, 0, strHead); // A2
        // ファイルカテゴリ：
        strHead = messageSource.getMessage("CNUDSS0001.LA_FILE_CATEGORY_LABEL", null, LocaleContextHolder.getLocale());
        setCellValue(destSheet, 3, 1, strHead); // E4
        // 事業種別：
        strHead = messageSource.getMessage("CNUDSS0001.LA_BUSINESS_TYPE_LABEL", null, LocaleContextHolder.getLocale());
        setCellValue(destSheet, 4, 1, strHead); // E5
        // 職務種別：
        strHead = messageSource.getMessage("CNUDSS0001.LA_JOB_TYPE_LABEL", null, LocaleContextHolder.getLocale());
        setCellValue(destSheet, 5, 1, strHead); // E6
        // 集計期間(YYYY/MM)：
        strHead = messageSource.getMessage("CNUDSS0001.LA_SELECT_PERIOD_LABEL", null, LocaleContextHolder.getLocale());
        setCellValue(destSheet, 7, 0, strHead); // A8
        // No
        strHead = messageSource.getMessage("CNUDSS0001.LA_NO_HEAD", null, LocaleContextHolder.getLocale());
        setCellValue(destSheet, 8, 0, strHead); // A11
        // ファイル名
        strHead = messageSource.getMessage("CNUDSS0001.LA_FILE_NAME_HEAD", null, LocaleContextHolder.getLocale());
        setCellValue(destSheet, 8, 1, strHead); // B11
        // 閲覧回数
        strHead = messageSource.getMessage("CNUDSS0001.LA_VIEWS_HEAD", null, LocaleContextHolder.getLocale());
        setCellValue(destSheet, 8, 2, strHead); // F11
        // コメント数
        strHead = messageSource.getMessage("CNUDSS0001.LA_COMMENTS_HEAD", null, LocaleContextHolder.getLocale());
        setCellValue(destSheet, 8, 3, strHead); // J11
        // ポイント
        strHead = messageSource.getMessage("CNUDSS0001.LA_POINT_HEAD", null, LocaleContextHolder.getLocale());
        setCellValue(destSheet, 8, 4, strHead); // N11
        // ファイルカテゴリ
        strHead = messageSource.getMessage("CNUDSS0001.LA_FILE_CATEGORY_HEAD", null, LocaleContextHolder.getLocale());
        setCellValue(destSheet, 8, 5, strHead); // V11
        // 言語
        strHead = messageSource.getMessage("CNUDSS0001.LA_LANGUAGE_HEAD", null, LocaleContextHolder.getLocale());
        setCellValue(destSheet, 8, 6, strHead); // AC11
        // ドキュメント作成者
        strHead = messageSource.getMessage("CNUDSS0001.LA_DOCUMENT_CREATOR_HEAD", null,
                LocaleContextHolder.getLocale());
        setCellValue(destSheet, 8, 7, strHead); // AG11
        // 有効期限
        strHead = messageSource.getMessage("CNUDSS0001.LA_EXPIRATION_HEAD", null, LocaleContextHolder.getLocale());
        setCellValue(destSheet, 8, 8, strHead); // AK11
        // 登録日
        strHead = messageSource.getMessage("CNUDSS0001.LA_REGISTRATION_HEAD", null, LocaleContextHolder.getLocale());
        setCellValue(destSheet, 8, 9, strHead); // AL11
        // 更新日
        strHead = messageSource.getMessage("CNUDSS0001.LA_UPDATE_HEAD", null, LocaleContextHolder.getLocale());
        setCellValue(destSheet, 8, 10, strHead); // AQ11

    }

    /**
     * 位置より値を記入する
     *
     * @param 対象シート
     * @param 行目
     * @param 列目
     * @param 記入値
     */
    public void setCellValue(XSSFSheet destSheet, int rowIndex, int ColIndex, String strHead) {

        XSSFRow headRow = destSheet.getRow(rowIndex);
        if (headRow == null) {
            headRow = destSheet.createRow(rowIndex);
        }
        XSSFCell headCell = headRow.getCell(ColIndex);
        if (headCell == null) {
            headCell = headRow.createCell(ColIndex);
        }
        headCell.setCellValue(strHead);
    }
}