我使用Apache POI,我需要把边框的单元格区域或合并区域。 我合并的细胞三行五列。 但我不能够将边框添加到它。 所以,我该怎么办呢?
Answer 1:
我的解决办法是通过它们的位置合并的单元格,则创建了一个小区(参考合并单元的第一个块)分配一个值,然后设置边框throught的HSSFRegionUtil
// Merges the cells
CellRangeAddress cellRangeAddress = new CellRangeAddress(start, start, j, j + 1);
sheet.addMergedRegion(cellRangeAddress);
// Creates the cell
Cell cell = CellUtil.createCell(row, j, entry.getKey());
// Sets the borders to the merged cell
HSSFRegionUtil.setBorderTop(CellStyle.BORDER_MEDIUM, cellRangeAddress, sheet, workbook);
HSSFRegionUtil.setBorderLeft(CellStyle.BORDER_MEDIUM, cellRangeAddress, sheet, workbook);
HSSFRegionUtil.setBorderRight(CellStyle.BORDER_MEDIUM, cellRangeAddress, sheet, workbook);
HSSFRegionUtil.setBorderBottom(CellStyle.BORDER_THIN, cellRangeAddress, sheet, workbook);
Answer 2:
你会发现RegionUtil类设置边界的范围cells.Look这里有用:
http://poi.apache.org/apidocs/index.html
Answer 3:
首先,它会很高兴地知道哪些表格式,您要创建。 因为当你在HSSF合并空细胞,这是完全正常的,而XSSF创建格式错误的文件造成的错误,同时在Microsoft Excel中打开它。 风格往往在两种情况下,同样的行为。 您需要分配相同的风格(在包括边框的情况下,风格)对要合并的每个细胞。 我的建议创建一个检查和纠正,设置风格在合并区域中的所有细胞的功能。 这里是比如我自己的:
private static final XSSFColor COLOR_ORANGE = new XSSFColor(new java.awt.Color(254, 253, 189));
private static final XSSFColor COLOR_GREY = new XSSFColor(new java.awt.Color(191, 190, 154));
。 。 。
XSSFCellStyle styleSubHeader = (XSSFCellStyle) wb.createCellStyle();
styleSubHeader.setFont(fontBold);
styleSubHeader.setVerticalAlignment(CellStyle.VERTICAL_CENTER);
styleSubHeader.setAlignment(CellStyle.ALIGN_CENTER);
styleSubHeader.setFillForegroundColor(COLOR_ORANGE);
styleSubHeader.setFillPattern(CellStyle.SOLID_FOREGROUND);
styleSubHeader.setBorderBottom(CellStyle.BORDER_THIN);
styleSubHeader.setBottomBorderColor(COLOR_GREY);
styleSubHeader.setBorderLeft(CellStyle.BORDER_THIN);
styleSubHeader.setLeftBorderColor(COLOR_GREY);
styleSubHeader.setBorderRight(CellStyle.BORDER_THIN);
styleSubHeader.setRightBorderColor(COLOR_GREY);
styleSubHeader.setBorderTop(CellStyle.BORDER_THIN);
styleSubHeader.setTopBorderColor(COLOR_GREY);
。 。 。
/**
* Checking if every row and cell in merging region exists, and create those which are not
* @param sheet in which check is performed
* @param region to check
* @param cellStyle cell style to apply for whole region
*/
private void cleanBeforeMergeOnValidCells(XSSFSheet sheet,CellRangeAddress region, XSSFCellStyle cellStyle )
{
for(int rowNum =region.getFirstRow();rowNum<=region.getLastRow();rowNum++){
XSSFRow row= sheet.getRow(rowNum);
if(row==null){
sheet.createRow(rowNum);
logger.trace("while check row "+rowNum+" was created");
}
for(int colNum=region.getFirstColumn();colNum<=region.getLastColumn();colNum++){
XSSFCell currentCell = row.getCell(colNum);
if(currentCell==null){
currentCell = row.createCell(colNum);
logger.trace("while check cell "+rowNum+":"+colNum+" was created");
}
currentCell.setCellStyle(cellStyle);
}
}
}
最后,你实际的合并通话这样的事情之前调用它:
CellRangeAddress region = new CellRangeAddress(rowIndex, rowIndex, mergeStart, cellIndex+cellOffset);
cleanBeforeMergeOnValidCells(row.getSheet(),region,styleSubHeader );
row.getSheet().addMergedRegion(region);// merging cells that has a title name
希望能帮助到你。
Answer 4:
我建议你使用getMergedRegions,该方法将在表返回合并的区域列表。 然后,您可以遍历每个区域应用边框。 例如:
private void setBordersToMergedCells(Workbook workBook, Sheet sheet) {
List<CellRangeAddress> mergedRegions = sheet.getMergedRegions();
for (CellRangeAddress rangeAddress : mergedRegions) {
RegionUtil.setBorderTop(CellStyle.BORDER_THIN, rangeAddress, sheet, workBook);
RegionUtil.setBorderLeft(CellStyle.BORDER_THIN, rangeAddress, sheet, workBook);
RegionUtil.setBorderRight(CellStyle.BORDER_THIN, rangeAddress, sheet, workBook);
RegionUtil.setBorderBottom(CellStyle.BORDER_THIN, rangeAddress, sheet, workBook);
}
}
然后,你可以当你做了所有的合并,你在MySheet的工作需要调用此方法。
Answer 5:
使用:
int rownumm=0;
rownumm++;
Row row = sheet.createRow(rownumm);
Cell cell = row.createCell(0);
cell.setCellValue(web.getUrl());
cell.setCellStyle(styles.get("font"));//font for text
CellRangeAddress region = CellRangeAddress.valueOf("$A$"+ (rownumm) + ":$E$+" + (rownumm));
frame(region, sheet, wb);
而且使用方法:
private static void frame(CellRangeAddress region,Sheet sheet, Workbook wb){
sheet.addMergedRegion(region);
final short borderMediumDashed = CellStyle.BORDER_MEDIUM;
RegionUtil.setBorderBottom(borderMediumDashed, region, sheet, wb);
RegionUtil.setBorderTop(borderMediumDashed, region, sheet, wb);
RegionUtil.setBorderLeft(borderMediumDashed, region, sheet, wb);
RegionUtil.setBorderRight(borderMediumDashed, region, sheet, wb);
}
另请参见链接“使用便利功能”:
https://poi.apache.org/spreadsheet/quick-guide.html#FooterPageNumbers
Answer 6:
cellStyle.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);
cellStyle.setBorderBottom(HSSFCellStyle.BORDER_THIN);
cellStyle.setBorderTop(HSSFCellStyle.BORDER_THIN);
cellStyle.setBorderLeft(HSSFCellStyle.BORDER_THIN);
cellStyle.setBorderRight(HSSFCellStyle.BORDER_THIN);
cellStyle.setBottomBorderColor(IndexedColors.BLACK.getIndex());
cellStyle.setTopBorderColor(IndexedColors.BLACK.getIndex());
cellStyle.setLeftBorderColor(IndexedColors.BLACK.getIndex());
cellStyle.setRightBorderColor(IndexedColors.BLACK.getIndex());
文章来源: Add border to merged cells in excel Apache poi java.?