jxl 읽기/쓰기 excel

boolean hsaNext = true;
		Long pageNo = 1L;
		int row = 1;
		WritableWorkbook book = null;
		WritableSheet sheet;
		WritableCellFormat wcf_left;
		try {
			book = Workbook.createWorkbook(new File("d:/Test.xls"));
			sheet = book.createSheet("Sheet_1", 0);

			WritableFont BoldFont = new WritableFont(WritableFont.ARIAL, 10,
					WritableFont.BOLD);
			WritableFont NormalFont = new WritableFont(WritableFont.ARIAL, 10);

			WritableCellFormat wcf_center = new WritableCellFormat(BoldFont);
			wcf_center.setBorder(Border.ALL, BorderLineStyle.THIN);
			wcf_center.setVerticalAlignment(VerticalAlignment.CENTRE); //  
			wcf_center.setAlignment(Alignment.CENTRE); //  
			wcf_center.setWrap(false); //  

			wcf_left = new WritableCellFormat(NormalFont);
			wcf_left.setBorder(Border.NONE, BorderLineStyle.THIN); //  
			wcf_left.setVerticalAlignment(VerticalAlignment.CENTRE); //  
			wcf_left.setAlignment(Alignment.LEFT); //  
			wcf_left.setWrap(false); //  

			sheet.addCell(new Label(0, 0, " ", wcf_center));
			sheet.addCell(new Label(1, 0, " ", wcf_center));
			sheet.addCell(new Label(2, 0, " ", wcf_center));
			sheet.addCell(new Label(3, 0, " ", wcf_center));
			sheet.addCell(new Label(4, 0, " ", wcf_center));
			sheet.addCell(new Label(5, 0, " ", wcf_center));
			sheet.addCell(new Label(6, 0, " ", wcf_center));
			sheet.addCell(new Label(7, 0, " ", wcf_center));
			sheet.addCell(new Label(8, 0, " id", wcf_center));

			while (hsaNext) {

				TradesSoldGetRequest req = new TradesSoldGetRequest();
				req.setFields("tid");
				Date dateTime = null;
				try {
					dateTime = SimpleDateFormat.getDateTimeInstance().parse(
							"2014-04-03 00:00:00");
				} catch (ParseException e) {
					e.printStackTrace();
				}
				req.setStartCreated(dateTime);
				req.setStatus("TRADE_FINISHED");
				req.setUseHasNext(true);
				req.setPageSize(100L);
				req.setPageNo(pageNo);
				TradesSoldGetResponse response = null;
				try {
					response = client.execute(req, sessionKey);
					hsaNext = response.getHasNext();
					List<Trade> trades = response.getTrades();

					Iterator<Trade> iterTrades = trades.iterator();
					while (iterTrades.hasNext()) {
						try {
							Trade trade = iterTrades.next();
							Trade fullTrade = topTradeWrapperService
									.getFullInfoTrade(trade.getTid(),
											sessionKey);
							List<PromotionDetail> proDetails = fullTrade
									.getPromotionDetails();
							sheet.addCell(new Label(0, row, String
									.valueOf(fullTrade.getTid()), wcf_left));
							sheet.addCell(new Label(1, row, fullTrade
									.getBuyerNick(), wcf_left));
							sheet.addCell(new Label(2, row, fullTrade
									.getPayment(), wcf_left));

							sheet.addCell(new Label(3, row, SimpleDateFormat
									.getDateTimeInstance().format(
											fullTrade.getPayTime()), wcf_left));
							sheet.addCell(new Label(4, row, fullTrade
									.getDiscountFee(), wcf_left));
							if (null != proDetails && !proDetails.isEmpty()) {

								for (PromotionDetail promotionDetail : proDetails) {
									sheet.addCell(new Label(5, row,
											promotionDetail.getPromotionName(),
											wcf_left));
									sheet.addCell(new Label(6, row,
											promotionDetail.getPromotionDesc(),
											wcf_left));
									sheet.addCell(new Label(7, row,
											promotionDetail.getDiscountFee(),
											wcf_left));
									sheet.addCell(new Label(8, row,
											promotionDetail.getPromotionId(),
											wcf_left));
									row++;
								}
							}
							System.out.println(row);
							row++;
						} catch (Exception e) {
							e.printStackTrace();
						}
					}
					pageNo++;
				} catch (ApiException e) {
					e.printStackTrace();
					try {
						Thread.sleep(3000);
					} catch (InterruptedException e1) {
					}
				}
			}

			book.write();

		} catch (RowsExceededException e1) {
			e1.printStackTrace();
		} catch (WriteException e1) {
			e1.printStackTrace();
		} catch (IOException e1) {
			e1.printStackTrace();
		} finally {
			try {
				book.close();
			} catch (WriteException e) {
				e.printStackTrace();
			} catch (IOException e) {
				e.printStackTrace();
			}
		}

Workbook book = null;
		try {
			book = Workbook.getWorkbook(new File(
					"d:/gymboree .xls"));
			Sheet sheet = book.getSheet(0);
			String buyer = "";
			List<String> delBuyer = new ArrayList<String>();
			for (int i = 0; i < sheet.getRows(); i++) {

				try {
					Cell cell = sheet.getCell(1, i);
					String buyerCell = cell.getContents();
					if (StringUtils.isNotBlank(buyerCell)) {
						buyer = buyerCell;
					}
					cell = sheet.getCell(6, i);
					String couponCell = cell.getContents();
					if (!delBuyer.contains(buyer) && couponCell.equals(" : 80.00 ")) {

						User user = new User();
						user.setNick(buyer);
						delBuyer.add(buyer);
						Long eId = couponCardServiceImpl.use(28539L, user);
						System.out.println(eId);
					}
				} catch (Exception e) {
					e.printStackTrace();
				}
			}

		} catch (BiffException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		} finally {
			book.close();
		}