poi Excel 设置样式

POI中可能会用到一些需要设置EXCEL单元格格式的操作小结：

先获取工作薄对象:

HSSFWorkbook wb = new HSSFWorkbook();

HSSFSheet sheet = wb.createSheet();

HSSFCellStyle setBorder = wb.createCellStyle();

一、设置背景色：

setBorder.setFillForegroundColor((short) 13);// 设置背景色
setBorder.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);

二、设置边框:

setBorder.setBorderBottom(HSSFCellStyle.BORDER_THIN); //下边框
setBorder.setBorderLeft(HSSFCellStyle.BORDER_THIN);//左边框
setBorder.setBorderTop(HSSFCellStyle.BORDER_THIN);//上边框
setBorder.setBorderRight(HSSFCellStyle.BORDER_THIN);//右边框

三、设置居中:

setBorder.setAlignment(HSSFCellStyle.ALIGN_CENTER); // 居中

四、设置字体:

HSSFFont font = wb.createFont();
font.setFontName("黑体");
font.setFontHeightInPoints((short) 16);//设置字体大小

HSSFFont font2 = wb.createFont();
font2.setFontName("仿宋_GB2312");
font2.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);//粗体显示
font2.setFontHeightInPoints((short) 12);

setBorder.setFont(font);//选择需要用到的字体格式

五、设置列宽:

sheet.setColumnWidth(0, 3766); //第一个参数代表列id(从0开始),第2个参数代表宽度值

六、设置自动换行:

setBorder.setWrapText(true);//设置自动换行

七、合并单元格:

Region region1 = new Region(0, (short) 0, 0, (short) 6);

//参数1：行号 参数2：起始列号 参数3：行号 参数4：终止列号
sheet.addMergedRegion(region1);

八、加边框

  HSSFCellStyle cellStyle= wookBook.createCellStyle();
  cellStyle.setAlignment(HSSFCellStyle.ALIGN_CENTER);
  cellStyle.setBorderBottom(HSSFCellStyle.BorderBORDER_MEDIUM);
  cellStyle.setBottomBorderColor(HSSFColor.BLACK.index);
  cellStyle.setBorderLeft(HSSFCellStyle.BORDER_MEDIUM);
  cellStyle.setLeftBorderColor(HSSFColor.BLACK.index);
  cellStyle.setBorderRight(HSSFCellStyle.BORDER_MEDIUM);
  cellStyle.setRightBorderColor(HSSFColor.BLACK.index);
  cellStyle.setBorderTop(HSSFCellStyle.BORDER_MEDIUM);
  cellStyle.setTopBorderColor(HSSFColor.BLACK.index);

另附:完整小例子一个

开发环境：IntelliJ IDEA 10.0.2

@ResponseBody

@RequestMapping(value = "/reportForms/joinStocktaking/exportStorage.api")

public AjaxResponse exportStorage(@RequestBody StorageModel model) throws Exception {

  if (logger.isDebugEnabled())

   logger.debug("tmpdir is, {}", System.getProperty(JAVA_IO_TMPDIR));

  int row = 1;

  HSSFWorkbook workbook = new HSSFWorkbook();

  HSSFSheet hssfSheet = workbook.createSheet();

  HSSFCellStyle style = workbook.createCellStyle();

  style.setFillBackgroundColor(HSSFCellStyle.LEAST_DOTS);

  style.setFillPattern(HSSFCellStyle.LEAST_DOTS);

  //设置Excel中的边框(表头的边框)

  style.setAlignment(HSSFCellStyle.ALIGN_CENTER);

  style.setBorderBottom(HSSFCellStyle.BORDER_MEDIUM);

  style.setBottomBorderColor(HSSFColor.BLACK.index);

  style.setBorderLeft(HSSFCellStyle.BORDER_MEDIUM);

  style.setLeftBorderColor(HSSFColor.BLACK.index);

  style.setBorderRight(HSSFCellStyle.BORDER_MEDIUM);

  style.setRightBorderColor(HSSFColor.BLACK.index);

  style.setBorderTop(HSSFCellStyle.BORDER_MEDIUM);

  style.setTopBorderColor(HSSFColor.BLACK.index);

  //设置字体

  HSSFFont font = workbook.createFont();

  font.setFontHeightInPoints((short) 14); // 字体高度

  font.setFontName(" 黑体 "); // 字体

  style.setFont(font);

  HSSFRow firstRow = hssfSheet.createRow((short) 0);

  HSSFCell firstCell = firstRow.createCell(0);

  firstRow.setHeight((short) 400);

  //设置Excel中的背景

  style.setFillForegroundColor(HSSFColor.GREEN.index);

  style.setFillBackgroundColor(HSSFColor.GREEN.index);

  firstCell.setCellValue(new HSSFRichTextString("库房"));

  firstCell.setCellStyle(style);

  HSSFCell secondCell = firstRow.createCell(1);

  firstRow.setHeight((short) 400);

  style.setFillForegroundColor(HSSFColor.GREEN.index);

  style.setFillBackgroundColor(HSSFColor.GREEN.index);

  secondCell.setCellValue(new HSSFRichTextString("库区"));

  secondCell.setCellStyle(style);

  HSSFCell threeCell = firstRow.createCell(2);

  firstRow.setHeight((short) 400);

  style.setFillForegroundColor(HSSFColor.GREEN.index);

  style.setFillBackgroundColor(HSSFColor.GREEN.index);

  threeCell.setCellValue(new HSSFRichTextString("物料编号"));

  threeCell.setCellStyle(style);

  HSSFCell fourCell = firstRow.createCell(3);

  firstRow.setHeight((short) 400);

  style.setFillForegroundColor(HSSFColor.GREEN.index);

  style.setFillBackgroundColor(HSSFColor.GREEN.index);

  fourCell.setCellValue(new HSSFRichTextString("物料名称"));

  fourCell.setCellStyle(style);

  HSSFCell fiveCell = firstRow.createCell(4);

  firstRow.setHeight((short) 400);

  style.setFillForegroundColor(HSSFColor.GREEN.index);

  style.setFillBackgroundColor(HSSFColor.GREEN.index);

  fiveCell.setCellValue(new HSSFRichTextString("在库数量"));

  fiveCell.setCellStyle(style);

  HSSFCell sixCell = firstRow.createCell(5);

  firstRow.setHeight((short) 400);

  style.setFillForegroundColor(HSSFColor.GREEN.index);

  style.setFillBackgroundColor(HSSFColor.GREEN.index);

  sixCell.setCellValue(new HSSFRichTextString("锁定数量"));

  sixCell.setCellStyle(style);

  //设置列宽

  hssfSheet.setColumnWidth(0, 7000);

  hssfSheet.setColumnWidth(1, 8000);

  hssfSheet.setColumnWidth(2, 4000);

  hssfSheet.setColumnWidth(3, 6000);

  hssfSheet.setColumnWidth(4, 4000);

  hssfSheet.setColumnWidth(5, 4000);

  List<?> list = joinStocktackingService.findjoinStorageByTerm(model.getWareHouse(), model.getStockArea(), model.getMaterialCode(), model.getMaterialName());

  for (Object object : list) {

   Object[] objects = (Object[]) object;

   Storage storage = (Storage) objects[0];

   Warehouse warehouse = (Warehouse) objects[1];

   StockArea stockArea = (StockArea) objects[2];

   Material material = (Material) objects[3];

   //设置Excel中的边框

   HSSFCellStyle cellStyle = workbook.createCellStyle();

   cellStyle.setAlignment(HSSFCellStyle.ALIGN_CENTER);

   cellStyle.setBorderBottom(HSSFCellStyle.BORDER_MEDIUM);

   cellStyle.setBottomBorderColor(HSSFColor.BLACK.index);

   cellStyle.setBorderLeft(HSSFCellStyle.BORDER_MEDIUM);

   cellStyle.setLeftBorderColor(HSSFColor.BLACK.index);

   cellStyle.setBorderRight(HSSFCellStyle.BORDER_MEDIUM);

   cellStyle.setRightBorderColor(HSSFColor.BLACK.index);

   cellStyle.setBorderTop(HSSFCellStyle.BORDER_MEDIUM);

   cellStyle.setTopBorderColor(HSSFColor.BLACK.index);

   HSSFRow hssfRow = hssfSheet.createRow((short) row);

   HSSFCell firstHssfCell = hssfRow.createCell(0);//库房

   firstHssfCell.setCellType(HSSFCell.CELL_TYPE_STRING);

   firstHssfCell.setCellValue(new HSSFRichTextString(warehouse.getName()));

   firstHssfCell.setCellStyle(cellStyle);//设置单元格的样式

   HSSFCell secondHssfCell = hssfRow.createCell(1);

   secondHssfCell.setCellType(HSSFCell.CELL_TYPE_STRING);

   secondHssfCell.setCellValue(new HSSFRichTextString(stockArea.getName()));

   secondHssfCell.setCellStyle(cellStyle);//设置单元格的样式

   HSSFCell threeHssfCell = hssfRow.createCell(2);

   threeHssfCell.setCellType(HSSFCell.CELL_TYPE_STRING);

   threeHssfCell.setCellValue(new HSSFRichTextString(material.getCode()));

   threeHssfCell.setCellStyle(cellStyle);//设置单元格的样式

   HSSFCell fourHssfCell = hssfRow.createCell(3);

   fourHssfCell.setCellType(HSSFCell.CELL_TYPE_STRING);

   fourHssfCell.setCellValue(new HSSFRichTextString(material.getName()));

   fourHssfCell.setCellStyle(cellStyle);//设置单元格的样式

   HSSFCell fiveHssfCell = hssfRow.createCell(4);

   fiveHssfCell.setCellType(HSSFCell.CELL_TYPE_STRING);

   fiveHssfCell.setCellValue(new HSSFRichTextString(String.valueOf(storage.getQty())));

   fiveHssfCell.setCellStyle(cellStyle);//设置单元格的样式

   HSSFCell sixHssfCell = hssfRow.createCell(5);

   sixHssfCell.setCellType(HSSFCell.CELL_TYPE_STRING);

   sixHssfCell.setCellValue(new HSSFRichTextString(String.valueOf(storage.getQtyLocked())));

   sixHssfCell.setCellStyle(cellStyle);//设置单元格的样式

   row++;

  }

  String newFileName = String.format("%s.%s", "joinStocktaking-" + (new Date()).getTime(), "xls");

  String uploadPath = FileUtils.contractPath(System.getProperty(JAVA_IO_TMPDIR), newFileName);

  FileOutputStream fOut = new FileOutputStream(uploadPath);

  workbook.write(fOut);

  fOut.flush();

  fOut.close();

  return AjaxResponse.createSuccess(newFileName);

}

再来张最终效果图：