Question

我正在使用Apache poi库创建Excel文件。我的问题是标题文本未与中心对齐。 [问题]

我按照StackOverflow的“合并Excel”问题进行操作，但不适用于此代码。链接在这里： Merge and align center cell using apache poi

当我刚创建标题时，单元格被合并，文本与中心对齐。但是，当我创建标题，标题（列名）和行时，标题未居中对齐。

public void aaa() throws Exception {

    String title = "testTitle";
    String head = "A,B,C,D";
    String row1 = "1,2,3,4";
    String row2 = "5,6,7,8";

    ArrayList<String> headerList = new ArrayList<String>(Arrays.asList(head.split(",")));
    ArrayList<ArrayList<String>> rowsList = new ArrayList<ArrayList<String>>();
    ArrayList<String> rowdata1 = new ArrayList<String>(Arrays.asList(row1.split(",")));
    ArrayList<String> rowdata2 = new ArrayList<String>(Arrays.asList(row2.split(",")));
    rowsList.add(rowdata1);
    rowsList.add(rowdata2);

    Workbook wb = new HSSFWorkbook();
    Sheet sheet = wb.createSheet("test");
    sheet.setDefaultColumnWidth(1300);
    Row row = null;
    Cell cell = null;
    int rowNo = 0;
    int colNo = 0;
    int maxCol = headerList.size();

    // Title Font
    Font font = wb.createFont();
    font.setFontHeightInPoints((short) 20);
    font.setFontName("Arial");

    // Header , Rows Style
    Font defaultFont = wb.createFont();
    defaultFont.setFontHeightInPoints((short) 13);
    defaultFont.setFontName("Arial");

    // 1-1 Title Style
    CellStyle cellTitleStyle = wb.createCellStyle();
    cellTitleStyle.setAlignment(CellStyle.ALIGN_CENTER);
    cellTitleStyle.setFont(font);

    // Header Style
    CellStyle cellHeaderStyle = wb.createCellStyle();
    cellHeaderStyle.setFillForegroundColor(IndexedColors.GREY_50_PERCENT.getIndex());
    cellHeaderStyle.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);
    cellHeaderStyle.setAlignment(CellStyle.ALIGN_CENTER);

    // Data Style
    CellStyle cellDataStyle = wb.createCellStyle();
    cellDataStyle.setAlignment(CellStyle.ALIGN_CENTER);

    // Merge and combine cells, apply title style to cells.
    if (maxCol > 0) {
        sheet.addMergedRegion(new CellRangeAddress(0, 0, 0, maxCol - 1));
        cell = sheet.createRow(0).createCell(0);
        cell.setCellValue(title);
        cell.setCellStyle(cellTitleStyle);
        sheet.createRow(rowNo).createCell(colNo).setCellValue(title);
        sheet.addMergedRegion(new CellRangeAddress(rowNo + 1, rowNo + 1, colNo, colNo + maxCol - 1));
    }


    rowNo++;
    rowNo++;
    // create a header
    row = sheet.createRow(rowNo);
    for (int i = 0; i < maxCol; i++) {
        cell = row.createCell(i);
        cell.setCellValue(headerList.get(i));
        cell.setCellStyle(cellHeaderStyle);
    }

    // create rows
    for (int i = 0; i < rowsList.size(); i++) {
        rowNo++;
        row = sheet.createRow(rowNo);
        for (int j = 0; j < rowsList.get(i).size(); j++) {
            cell = row.createCell(j);
            cell.setCellValue(rowsList.get(i).get(j));
        }
    }
    CellRangeAddress cellRangeAdress = new CellRangeAddress(2, rowNo, 0, maxCol - 1);
    final short borderMediumDashed = CellStyle.BORDER_MEDIUM;
    RegionUtil.setBorderBottom(borderMediumDashed, cellRangeAdress, sheet, wb);
    RegionUtil.setBorderTop(borderMediumDashed, cellRangeAdress, sheet, wb);
    RegionUtil.setBorderLeft(borderMediumDashed, cellRangeAdress, sheet, wb);
    RegionUtil.setBorderRight(borderMediumDashed, cellRangeAdress, sheet, wb);
    FileOutputStream fs = null;
    fs = new FileOutputStream("C:\\test/test.xls");
    wb.write(fs);
    fs.close();
}

我想使用apache poi合并并对齐中心单元格，如下图所示。

使用apache poi合并并对齐中心单元格并更改字体大小

0 个答案: