HSSFWorkbook 創建Excel文件

1.項目代碼實例

　　

@Override
    public OutputStream exportAucLotData(String id, String password, OutputStream out) throws Exception {
        if (id == null)
            return null;
        if (StringUtils.isBlank(password))
            password = "123456";
        if (out == null)
            return null;
        AucLot lot=    aucLotRepository.findOne(id);
        if(lot==null)
            return null;
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");
        List<Object> sheet1 =sheet1Data(lot,sdf);//標題下面的數據

        List<AucPrice> ps=aucPriceRepository.findAllByAucLotIdOrderByIdDesc(lot.id());
        List<Object> sheet2 =sheet2Data(sdf, ps);
        List<AucBrand>  bs=aucBrandRepository.findAllByAucLotIdOrderByCrtTimeDesc(lot.id());
        List<Object> sheet3 = sheet3Data(sdf, bs);
        logger.debug(sheet1.toString());
        logger.debug(sheet2.toString());
        logger.debug(sheet3.toString());
        HSSFWorkbook book = new HSSFWorkbook();
        book = createExcel(book, sheet1Heads(), sheet1Fileds(), sheet1, "拍賣信息");
        book = createExcel(book, sheet2Heads(), sheet2Fileds(), sheet2, "出價信息");
        book = createExcel(book, sheet3Heads(), sheet3Fileds(), sheet3, "報名信息");
        File tempFile=File.createTempFile("temp",".xls");
        tempFile.deleteOnExit();
        OutputStream tempout = new FileOutputStream(tempFile);
        book.write(tempout);

　　　　//下載Excel ，打開的時候進行加密處理
        EncryptExcellUtil.encrypt(tempFile,password, out);
        logger.debug("-----excel 文檔加密 ok-----------");
        return out;
    }    

 

 

2.設置表格的題頭

private static List<String> sheet1Heads(){
        List<String> heads = new ArrayList<String>();
        heads.add("標的內部代碼");
        heads.add("拍賣名稱");
        heads.add("標的大類名稱");
        heads.add("拍賣開始時間");
        heads.add("拍賣結束時間");
        heads.add("保證金");
        heads.add("拍賣模式");
        heads.add("上拍階段");
        heads.add("拍賣狀態");
        heads.add("發布狀態");
        heads.add("所屬機構");
        heads.add("城市名稱");        
        return  heads;
    }

 

3.獲取題頭下面對應的數據

private  List<Object> sheet1Data(AucLot lot,SimpleDateFormat sdf){
        List<Object> data = new ArrayList<Object>();
        Map<String, String> map = new HashMap<String, String>();
        List<String> key = sheet1Fileds();
        map.put(key.get(0), lot.goodsNo());// goodsNo
        map.put(key.get(1), lot.goodsName());// goodsName
        map.put(key.get(2), lot.firstTypeName());// firstTypeName
        map.put(key.get(3), (lot.startTime() != null) ? sdf.format(lot.startTime()) : "");// startTime
        map.put(key.get(4), (lot.endTime() != null) ? sdf.format(lot.endTime()) : "");// endTime
        map.put(key.get(5), (lot.bail() != null) ? lot.bail().toString() : "");// bail
        map.put(key.get(6), (lot.type() == 1) ? "網絡拍" : (lot.type() == 2 ? "同步拍" : ""));
        map.put(key.get(7), stage(lot.stage()));// stage
        map.put(key.get(8), status(lot.status()));// status
        map.put(key.get(9), (lot.isPublished() == 1) ? "未發布" : "已發布");// isPublished
        map.put(key.get(10), agencyName(lot.agencyId()));// agencyId to name
        map.put(key.get(11), lot.cityName());// cityName
        data.add(map);
        return data;
    }

 

4.???

private static List<String> sheet1Fileds(){
        List<String> fileds = new ArrayList<String>();
        fileds.add("goodsNo");
        fileds.add("goodsName");
        fileds.add("firstTypeName");
        fileds.add("startTime");
        fileds.add("endTime");
        fileds.add("bail");
        fileds.add("type");
        fileds.add("stage");
        fileds.add("status");
        fileds.add("isPublished");
        fileds.add("agencyId");
        fileds.add("cityName");        
        return  fileds;
    }

 

5.創建Excel表格對象

public  HSSFWorkbook createExcel(HSSFWorkbook book,
            List<String> heads, List<String> fieldList, List<Object> dataList,String sheettName) {
        HSSFWorkbook  workbook = book;
        if(workbook ==null)
            workbook= new HSSFWorkbook();
        
        if(sheettName==null||"".equals(sheettName))
            sheettName="sheet"+Math.random();
        
        HSSFSheet sheet = workbook.createSheet(sheettName); //
        sheet.setDefaultColumnWidth(20);  
        sheet.setDefaultRowHeightInPoints(20);
        // 在索引0的位置創建行（最頂端的行）
        HSSFRow row = sheet.createRow(0);
        HSSFCell cell=null;
       
       //創建表格第一行的標題
        for (int i = 0; i < heads.size(); i++) {
            // 在索引0的位置創建單元格（左上端）
            cell = row.createCell(i);
            // 定義單元格為字符串類型
            cell.setCellType(HSSFCell.CELL_TYPE_STRING);
            // 在單元格中輸入一些內容
            cell.setCellValue(heads.get(i));
        }

　　　　//循環賦值
        for (int n = 0; n < dataList.size(); n++) {
            // 在索引1的位置創建行（最頂端的行）
            HSSFRow row_value = sheet.createRow(n + 1);
            Map<String, String> dataMap =(Map<String, String>)dataList.get(n);
            HSSFCell cell_v=null;
            for (int i = 0; i < fieldList.size(); i++) {
                // 在索引0的位置創建單元格（左上端）
                cell_v = row_value.createCell(i);
                // 定義單元格為字符串類型
                cell_v.setCellType(HSSFCell.CELL_TYPE_STRING);
                // 在單元格中輸入一些內容
                cell_v.setCellValue(dataMap.get(fieldList.get(i)));
            }
        }
        return  workbook ;
    }