After Apache Poi 4.1.0 merge cells, RegionUtil set the border ineffective problem solving

background

Make use Apache Poi complex Excel header export, involving the merger table, call RegionUtil set the border effect after the merger invalid. As follows

solve

After a wave of search data are based on RegionUtil. No way, using the setting each cell pattern, each cell comprising combining.

// 第二行表头：涉及表头合并
row = sheet.createRow(1);
// 增加此部分代码，将合并的，没有填值的也设置边框样式
int preColNum = 16;
for (int j = 0; j < preColNum; j++) {
	HSSFCell cell = row.createCell(j);
	cell.setCellStyle(style);
}
// 设置有值得单元样式
for (int i = 0; i < excelHeader1.length; i++) {
	HSSFCell cell = row.createCell(i + preColNum);
	cell.setCellValue(excelHeader1[i]);
	cell.setCellStyle(style);
	sheet.autoSizeColumn(i + preColNum, true);// 自动调整宽度
}
// 动态合并单元格
for (int i = 0; i < headnum1.length; i++) {
	sheet.autoSizeColumn(i, true);
	String[] temp = headnum1[i].split(",");
	Integer startrow = Integer.parseInt(temp[0]);
	Integer overrow = Integer.parseInt(temp[1]);
	Integer startcol = Integer.parseInt(temp[2]);
	Integer overcol = Integer.parseInt(temp[3]);
	CellRangeAddress cra = new CellRangeAddress(startrow, overrow, startcol, overcol);
	sheet.addMergedRegion(cra);
	// 调用RegionUtil设置无效
	// this.setRegionBorder(BorderStyle.THIN, cra, sheet);
}
复制代码

The complete code

After finishing, complete code is as follows:

public class RoomReserveExportUtil {
    private void setRegionBorder(BorderStyle border, CellRangeAddress region, Sheet sheet) {
        RegionUtil.setBorderBottom(border, region, sheet);
        RegionUtil.setBorderLeft(border, region, sheet);
        RegionUtil.setBorderRight(border, region, sheet);
        RegionUtil.setBorderTop(border, region, sheet);
    }

    /**
     * 动态合并单元格
     * @param headNum 表头数字，“0,2,0,0”  ===>  “起始行，截止行，起始列，截止列”
     * @param sheet
     */
    private void mergeCell(String[] headNum, Sheet sheet) {
        // 动态合并单元格
        for (int i = 0; i < headNum.length; i++) {
            sheet.autoSizeColumn(i, true);
            String[] temp = headNum[i].split(",");
            Integer startrow = Integer.parseInt(temp[0]);
            Integer overrow = Integer.parseInt(temp[1]);
            Integer startcol = Integer.parseInt(temp[2]);
            Integer overcol = Integer.parseInt(temp[3]);

            CellRangeAddress cra = new CellRangeAddress(startrow, overrow, startcol, overcol);
            sheet.addMergedRegion(cra);
//            this.setRegionBorder(BorderStyle.THIN, cra, sheet);
        }
    }

    /**
     * 设置合并表格，空缺单元格样式
     * @param row
     * @param startNum
     * @param endNum
     * @param style
     */
    private void setEmptyCellStyle(HSSFRow row, int startNum, int endNum, HSSFCellStyle style) {
        for (int j = startNum; j < endNum; j++) {
            HSSFCell cell = row.createCell(j);
            cell.setCellStyle(style);
        }
    }

    public HSSFWorkbook exportGoods(List<RoomReserveExtend> list) {
        //int titleRow = 6;//表头标题及副标题占6行
        //int tableBody = titleRow+1;//表头开始
        // 声明String数组，并初始化元素（表头名称）
        //第一行表头字段，合并单元格时字段跨几列就将该字段重复几次
        String[] excelHeader0 = {
                "项目名称",
                "招标编号",
                "招标单位",
                "项目类别",
                "项目区域",
                "开标时间",
                "评标时间",
                "审核状态",
                "招标方式",
                "招标组织形式",
                "招标代理机构",
                "出席开标人员姓名(代理机构)",
                "缴款单位(中标单位)",
                "中标金额(元)",
                "中标金额说明",
                "缴款通知书时间",
                "缴款金额(元)", "缴款金额(元)", "缴款金额(元)", "缴款金额(元)", "缴款金额(元)",
                "换票情况", "换票情况"

        };
        // “0,2,0,0”  ===>  “起始行，截止行，起始列，截止列”
        String[] headnum0 = {
                "0,2,0,0",
                "0,2,1,1",
                "0,2,2,2",
                "0,2,3,3",
                "0,2,4,4",
                "0,2,5,5",
                "0,2,6,6",
                "0,2,7,7",
                "0,2,8,8",
                "0,2,9,9",
                "0,2,10,10",
                "0,2,11,11",
                "0,2,12,12",
                "0,2,13,13",
                "0,2,14,14",
                "0,2,15,15",
                "0,0,16,20",
                "0,0,21,22"
        };
        // 第二行表头字段，其中的空的双引号是为了补全表格边框
        String[] excelHeader1 = {
                "合计5=(1+2)",
                "场地租赁费(1)",
                "服务费", "服务费", "服务费",
                "时间",
                "发票号码"
        };
        // 合并单元格
        String[] headnum1 = {
                "1,2,16,16",
                "1,2,17,17",
                "1,1,18,20",
                "1,2,21,21",
                "1,2,22,22"
        };

        // 第三行表头字段
        String[] excelHeader2 = {
                "新标准(2)",
                "旧标准(2)",
                "减负情况4=(3-2)"
        };

//        String[] headnum2 = {
//                "2,2,18,18",
//                "2,2,19,19",
//                "2,2,20,20"
//        };

        // 声明一个工作簿
        HSSFWorkbook wb = new HSSFWorkbook();
        // 生成一个表格
        HSSFSheet sheet = wb.createSheet("项目导出结果");

        // 生成一种样式style
        HSSFCellStyle style = wb.createCellStyle();
        // 设置样式
        style.setFillForegroundColor(IndexedColors.SKY_BLUE.index);
        style.setFillPattern(FillPatternType.SOLID_FOREGROUND);
        style.setBorderBottom(BorderStyle.THIN);
        style.setBorderLeft(BorderStyle.THIN);
        style.setBorderRight(BorderStyle.THIN);
        style.setBorderTop(BorderStyle.THIN);
        style.setAlignment(HorizontalAlignment.CENTER);
        style.setVerticalAlignment(VerticalAlignment.CENTER);

        // 生成一种字体
        HSSFFont font = wb.createFont();
        // 设置字体
        font.setFontName("微软雅黑");
        // 设置字体大小
        font.setFontHeightInPoints((short) 12);
        // 在样式中引用这种字体
        style.setFont(font);

//        // 生成标题样式style1
//        HSSFCellStyle style1 = wb.createCellStyle();
//        // 设置样式
//        style1.setAlignment(HorizontalAlignment.CENTER);
//        style1.setVerticalAlignment(VerticalAlignment.CENTER);
//
//        // 生成标题字体1
//        HSSFFont font1 = wb.createFont();
//        // 设置字体
//        font1.setFontName("微软雅黑");
//        // 设置字体大小
//        font1.setFontHeightInPoints((short) 25);
//        // 字体加粗
//        font1.setBold(true);
//        // 在样式中引用这种字体
//        style1.setFont(font1);

        HSSFRow row = sheet.createRow(0);
        for (int i = 0; i < excelHeader0.length; i++) {
            HSSFCell cell = row.createCell(i);
            cell.setCellValue(excelHeader0[i]);
            cell.setCellStyle(style);
            sheet.autoSizeColumn(i, true);// 根据字段长度自动调整列的宽度
        }
        // 动态合并单元格
        this.mergeCell(headnum0, sheet);

        // 第二行表头
        row = sheet.createRow(1);
        int preColNum = 16;
        // 设置合并单元格，空缺单元格样式
        this.setEmptyCellStyle(row, 0, preColNum, style);

        for (int i = 0; i < excelHeader1.length; i++) {
            HSSFCell cell = row.createCell(i + preColNum);
            cell.setCellValue(excelHeader1[i]);
            cell.setCellStyle(style);
            sheet.autoSizeColumn(i + preColNum, true);// 自动调整宽度
        }
        // 动态合并单元格
        this.mergeCell(headnum1, sheet);

        // 第三行表头
        row = sheet.createRow(2);
        preColNum = 18;
        // 设置合并单元格，空缺单元格样式
        this.setEmptyCellStyle(row, 0, preColNum, style);

        for (int i = 0; i < excelHeader2.length; i++) {
            HSSFCell cell = row.createCell(i + preColNum);
            cell.setCellValue(excelHeader2[i]);
            cell.setCellStyle(style);
            sheet.autoSizeColumn(i + preColNum, true);// 自动调整宽度
        }
        // 动态合并单元格
//        this.mergeCell(headnum2, sheet);

        // 设置合并单元格，空缺单元格样式
        this.setEmptyCellStyle(row, 21, 23, style);

        for (int i = 0; i < list.size(); i++) {
            RoomReserveExtend vo = list.get(i);
            row = sheet.createRow(i + 3);

            HSSFCell cell0 = row.createCell(0);
            cell0.setCellValue(vo.getProjectName());

            HSSFCell cell1 = row.createCell(1);
            cell1.setCellValue(vo.getTenderCode());

            HSSFCell cell2 = row.createCell(2);
            cell2.setCellValue(vo.getTenderUnit());

            HSSFCell cell3 = row.createCell(3);
            cell3.setCellValue(vo.getProjectType());

            HSSFCell cell4 = row.createCell(4);
            cell4.setCellValue(vo.getArea());

            HSSFCell cell5 = row.createCell(5);
            cell5.setCellValue(vo.getApplyOpenTime());

            HSSFCell cell6 = row.createCell(6);
            cell6.setCellValue(vo.getEvalTime());

            HSSFCell cell7 = row.createCell(7);
            cell7.setCellValue(vo.getManageStatus());

            HSSFCell cell8 = row.createCell(8);
            cell8.setCellValue(vo.getTenderType());

            HSSFCell cell9 = row.createCell(9);
            cell9.setCellValue(vo.getTenderOrgType());

            HSSFCell cell10 = row.createCell(10);
            cell10.setCellValue(vo.getAgencyName());

            HSSFCell cell11 = row.createCell(11);
            cell11.setCellValue(vo.getOpenUsersShow());

            HSSFCell cell12 = row.createCell(12);
            cell12.setCellValue(vo.getAgencyName());

            HSSFCell cell13 = row.createCell(13);
            cell13.setCellValue(String.valueOf(vo.getTradePrice()));

            HSSFCell cell14 = row.createCell(14);
            cell14.setCellValue(vo.getTradePriceDesc());

            HSSFCell cell15 = row.createCell(15);
            cell15.setCellValue("");

            HSSFCell cell16 = row.createCell(16);
            cell16.setCellValue(vo.getAgencyName());

            HSSFCell cell17 = row.createCell(17);
            cell17.setCellValue(vo.getAgencyName());

            HSSFCell cell18 = row.createCell(18);
            cell18.setCellValue(vo.getAgencyName());

            HSSFCell cell19 = row.createCell(19);
            cell19.setCellValue(vo.getAgencyName());

            HSSFCell cell20 = row.createCell(20);
            cell20.setCellValue(vo.getAgencyName());

            HSSFCell cell21 = row.createCell(21);
            cell21.setCellValue(vo.getAgencyName());

            HSSFCell cell22 = row.createCell(22);
            cell22.setCellValue(vo.getAgencyName());
        }
        return wb;
    }
}
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final effect

Reproduced please specify: slip dad »Apache Poi 4.1.0 merge cells after, RegionUtil set the border ineffective problem solving