在Apache POI中设置样式

我正在设置标题的样式，我的最后一列也有我为标题设置的样式。 这是我设置设置风格的代码。

XSSFWorkbook workbook = new XSSFWorkbook(); XSSFSheet sheet = workbook.createSheet(sheetName); for (int i = 0; i < numberOfMergedRow; i++) { sheet.addMergedRegion(new CellRangeAddress(i, i, 0, numberOfColumns - 1)); sheet.autoSizeColumn(i); } XSSFRow row = sheet.createRow(0); int l = row.getLastCellNum() + 1; XSSFCell cell = row.createCell((short) l); XSSFCellStyle cellStyle = workbook.createCellStyle(); Font headerFont = workbook.createFont(); Set<Integer> keyset = data.keySet(); int rownum = 0; for (Integer key : keyset) { row = sheet.createRow(rownum++); Object[] objArr = data.get(key); int cellnum = 0; for (Object obj : objArr) { cell = row.createCell(cellnum++); if (obj instanceof String) cell.setCellValue((String) obj); else if (obj instanceof Integer) cell.setCellValue((Integer) obj); else if (obj instanceof Double) cell.setCellValue((Double) obj); else if (obj instanceof Number) cell.setCellValue((Double) obj); } cellStyle.setAlignment(XSSFCellStyle.ALIGN_CENTER); cellStyle.setVerticalAlignment(XSSFCellStyle.VERTICAL_CENTER); /* adding heading style */ cellStyle.setFillForegroundColor(IndexedColors.LIGHT_CORNFLOWER_BLUE.getIndex()); cellStyle.setFillPattern(CellStyle.SOLID_FOREGROUND); headerFont.setBoldweight(Font.BOLDWEIGHT_BOLD); headerFont.setFontHeightInPoints((short) 12); cellStyle.setFont(headerFont); cell.setCellStyle(cellStyle); 

我的输出

我怎样才能设置风格只在标题？

Answer 1

 XSSFWorkbook workbook = new XSSFWorkbook(); XSSFSheet sheet = workbook.createSheet(sheetName); for (int i = 0; i < numberOfMergedRow; i++) { sheet.addMergedRegion(new CellRangeAddress(i, i, 0, numberOfColumns - 1)); sheet.autoSizeColumn(i); } XSSFRow row = sheet.createRow(0); int l = row.getLastCellNum() + 1; XSSFCell cell = row.createCell((short) l); XSSFCellStyle cellStyle = workbook.createCellStyle(); Font headerFont = workbook.createFont(); cellStyle.setAlignment(XSSFCellStyle.ALIGN_CENTER); cellStyle.setVerticalAlignment(XSSFCellStyle.VERTICAL_CENTER); /* adding heading style */ cellStyle.setFillForegroundColor(IndexedColors.LIGHT_CORNFLOWER_BLUE.getIndex()); cellStyle.setFillPattern(CellStyle.SOLID_FOREGROUND); headerFont.setBoldweight(Font.BOLDWEIGHT_BOLD); headerFont.setFontHeightInPoints((short) 12); cellStyle.setFont(headerFont); cell.setCellStyle(cellStyle); Set<Integer> keyset = data.keySet(); int rownum = 0; for (Integer key : keyset) { row = sheet.createRow(rownum++); Object[] objArr = data.get(key); int cellnum = 0; for (Object obj : objArr) { cell = row.createCell(cellnum++); if (obj instanceof String) cell.setCellValue((String) obj); else if (obj instanceof Integer) cell.setCellValue((Integer) obj); else if (obj instanceof Double) cell.setCellValue((Double) obj); else if (obj instanceof Number) cell.setCellValue((Double) obj); } 

将cellStyle代码移到for循环之外