poi-匯出excel表格
阿新 • • 發佈：2018-12-09
1.效果圖
2.Java程式碼
/** * * @Title: exportExcel * @Description: 匯出excel * @param request * @param response * @return * @throws Exception * @author 大都督 * @date 2018年11月30日 * @return String */ @RequestMapping(value = "/export_excel", method = RequestMethod.GET) public String exportExcel(HttpServletRequest request, HttpServletResponse response) throws Exception{ return poiService.exportExcel(response); }
@Override public String exportExcel(HttpServletResponse response) throws Exception { HSSFWorkbook wb = new HSSFWorkbook(); String sheetName = "測試"; HSSFSheet sheet = wb.createSheet(sheetName); HSSFCellStyle style = wb.createCellStyle(); style.setAlignment(HSSFCellStyle.ALIGN_CENTER); // 建立一個居中格式 sheet.setDefaultColumnWidth(15); //合併單元格（行開始，行結束，列開始，列結束）從零開始 sheet.addMergedRegion(new CellRangeAddress(0,0,0,8)); sheet.addMergedRegion(new CellRangeAddress(1,1,1,8)); sheet.addMergedRegion(new CellRangeAddress(2,2,1,2)); sheet.addMergedRegion(new CellRangeAddress(2,2,3,4)); sheet.addMergedRegion(new CellRangeAddress(2,2,5,8)); sheet.addMergedRegion(new CellRangeAddress(3,3,1,8)); sheet.addMergedRegion(new CellRangeAddress(4,7,0,0)); sheet.addMergedRegion(new CellRangeAddress(5,7,1,1)); sheet.addMergedRegion(new CellRangeAddress(5,7,2,2)); sheet.addMergedRegion(new CellRangeAddress(5,7,8,8)); HSSFRow row = null; HSSFCell cell = null; //第1行 row = sheet.createRow(0); //第1行-第1列 cell = row.createCell(0); cell.setCellValue("A1-I1"); cell.setCellStyle(style); //第2行 row = sheet.createRow(1); //第2行-第1列 cell = row.createCell(0); cell.setCellValue("A2"); cell.setCellStyle(style); cell = row.createCell(1); cell.setCellValue("B2-I2"); cell.setCellStyle(style); //第3行 row = sheet.createRow(2); //第3行-第1列 cell = row.createCell(0); cell.setCellValue("A3"); cell.setCellStyle(style); //第3行-第2列 cell = row.createCell(1); cell.setCellValue("B3-C3"); cell.setCellStyle(style); //第3行-第3列 cell = row.createCell(3); cell.setCellValue("D3-E3"); cell.setCellStyle(style); //第3行-第4列 cell = row.createCell(5); cell.setCellValue("F3-I3"); cell.setCellStyle(style); //第4行 row = sheet.createRow(3); //第4行-第1列 cell = row.createCell(0); cell.setCellValue("A4"); cell.setCellStyle(style); //第4行-第2列 cell = row.createCell(1); cell.setCellValue("B4-I4"); cell.setCellStyle(style); //第5行 row = sheet.createRow(4); cell = row.createCell(0); cell.setCellValue("A5-A8"); cell.setCellStyle(style); cell = row.createCell(1); cell.setCellValue("姓名"); cell.setCellStyle(style); cell = row.createCell(2); cell.setCellValue("電話"); cell.setCellStyle(style); cell = row.createCell(3); cell.setCellValue(""); cell.setCellStyle(style); cell = row.createCell(4); cell.setCellValue("一級"); cell.setCellStyle(style); cell = row.createCell(5); cell.setCellValue("特約"); cell.setCellStyle(style); cell = row.createCell(6); cell.setCellValue("品牌"); cell.setCellStyle(style); cell = row.createCell(7); cell.setCellValue("零售"); cell.setCellStyle(style); cell = row.createCell(8); cell.setCellValue("總金額"); cell.setCellStyle(style); int i = 0, num = 4; row = sheet.createRow(i+num); cell = row.createCell(0); cell.setCellValue("A5-A8"); cell.setCellStyle(style); cell = row.createCell(1); cell.setCellValue("B5"); cell.setCellStyle(style); cell = row.createCell(2); cell.setCellValue("C5"); cell.setCellStyle(style); cell = row.createCell(3); cell.setCellValue("D5"); cell.setCellStyle(style); cell = row.createCell(4); cell.setCellValue("E5"); cell.setCellStyle(style); cell = row.createCell(5); cell.setCellValue("F5"); cell.setCellStyle(style); cell = row.createCell(6); cell.setCellValue("G5"); cell.setCellStyle(style); cell = row.createCell(7); cell.setCellValue("H5"); cell.setCellStyle(style); cell = row.createCell(8); cell.setCellValue("I5"); cell.setCellStyle(style); //第i+5行 row = sheet.createRow(i+num+1); cell = row.createCell(1); cell.setCellValue("B6-B8"); cell.setCellStyle(style); cell = row.createCell(2); cell.setCellValue("C6-C8"); cell.setCellStyle(style); cell = row.createCell(3); cell.setCellValue("D6"); cell.setCellStyle(style); cell = row.createCell(4); cell.setCellValue("E6"); cell.setCellStyle(style); cell = row.createCell(5); cell.setCellValue("F6"); cell.setCellStyle(style); cell = row.createCell(6); cell.setCellValue("G6"); cell.setCellStyle(style); cell = row.createCell(7); cell.setCellValue("H6"); cell.setCellStyle(style); cell = row.createCell(8); cell.setCellValue("I6-I8"); cell.setCellStyle(style); //第i+6行 row = sheet.createRow(i+num+2); cell = row.createCell(3); cell.setCellValue("D7"); cell.setCellStyle(style); cell = row.createCell(4); cell.setCellValue("E7"); cell.setCellStyle(style); cell = row.createCell(5); cell.setCellValue("F7"); cell.setCellStyle(style); cell = row.createCell(6); cell.setCellValue("G7"); cell.setCellStyle(style); cell = row.createCell(7); cell.setCellValue("H7"); cell.setCellStyle(style); //第i+7行 row = sheet.createRow(i+num+3); cell = row.createCell(3); cell.setCellValue("D8"); cell.setCellStyle(style); cell = row.createCell(4); cell.setCellValue("E8"); cell.setCellStyle(style); cell = row.createCell(5); cell.setCellValue("F8"); cell.setCellStyle(style); cell = row.createCell(6); cell.setCellValue("G8"); cell.setCellStyle(style); cell = row.createCell(7); cell.setCellValue("H8"); cell.setCellStyle(style); ByteArrayOutputStream os = new ByteArrayOutputStream(); try { wb.write(os); } catch (IOException e) { e.printStackTrace(); } byte[] content = os.toByteArray(); InputStream is = new ByteArrayInputStream(content); // 設定response引數，可以開啟下載頁面 response.reset(); response.setContentType("application/vnd.ms-excel;charset=utf-8"); response.setHeader("Content-Disposition", "attachment;filename=" + new String((sheetName).getBytes(), "iso-8859-1")); 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(); } return null; }