Java中EasyPoi导出复杂合并单元格的方法

前言：

上星期做了一个Excel的单元格合并，用的是EasyPoi，我之前合并单元格都是原生的，第一次使用EasyPoi合并也不太熟悉，看着网上自己套用，使用后发现比原生的方便些，贡献一下，也给其他用到合并而且用的是EasyPoi的小伙伴节省下时间。

导出模板：

坐标：

版本号，自己来定，可以去官网查看：EasyPoi官网

<!-- easypoi 导入包 -->
    <dependency>
      <groupId>cn.afterturn</groupId>
      <artifactId>easypoi-base</artifactId>
      <version>4.0.0</version>
    </dependency>

    <dependency>
      <groupId>cn.afterturn</groupId>
      <artifactId>easypoi-annotation</artifactId>
      <version>4.0.0</version>
    </dependency>

实现代码：

 //表头设置
        List<ExcelExportEntity> colList = new ArrayList<ExcelExportEntity>();

        ExcelExportEntity colEntity = new ExcelExportEntity(\"经销商\", \"distributorName\");
        colEntity.setNeedMerge(true);
        colEntity.setWidth(20);
        colList.add(colEntity);

        colEntity = new ExcelExportEntity(\"科室\", \"dept\");
        colEntity.setNeedMerge(true);
        colList.add(colEntity);

        colEntity = new ExcelExportEntity(\"部门\", \"region\");
        colEntity.setNeedMerge(true);
        colList.add(colEntity);

        colEntity = new ExcelExportEntity(\"省份\", \"province\");
        colEntity.setNeedMerge(true);
        colList.add(colEntity);

        colEntity = new ExcelExportEntity(\"门店数量\", \"storeNum\");
        colEntity.setNeedMerge(true);
        colEntity.setStatistics(true);
        colList.add(colEntity);
        Map<String, Integer> map = DateUtils.getLastDayOfMonthByStr(request.getMonthStr());
        Integer dayNum = map.get(\"dayNum\");

        for (int i = 1; i <= dayNum; i++) {
          ExcelExportEntity group_1 = new ExcelExportEntity(i + \"日\", \"day\");
          List<ExcelExportEntity> exportEntities = new ArrayList<>();
          ExcelExportEntity appalyExcel = new ExcelExportEntity(\"申请数量\", \"applyNum\" + i);
          appalyExcel.setStatistics(true);
          exportEntities.add(appalyExcel);
          ExcelExportEntity adoptExcel = new ExcelExportEntity(\"通过数量\", \"adoptNum\" + i);
          adoptExcel.setStatistics(true);
          exportEntities.add(adoptExcel);
          group_1.setList(exportEntities);
          colList.add(group_1);
        }
        //文件数据
        List<Map<String, Object>> list = new ArrayList<>();
        List<StoreNewAddReportVO.DistributorStoreNewAddReportVO> disList = register.getStoreNewAddReportVO().getDistributorStoreNewAddReportVOList();
        int size = disList.size();
        for (int i = 0; i < size; i++) {
          StoreNewAddReportVO.DistributorStoreNewAddReportVO dis = disList.get(i);
          Map<String, Object> valMap = new HashMap<>();
          valMap.put(\"distributorName\", dis.getDistributorName());
          valMap.put(\"dept\", dis.getDept());
          valMap.put(\"region\", dis.getRegion());
          valMap.put(\"province\", dis.getProvince());
          valMap.put(\"storeNum\", dis.getStoreNum());
          List<StoreNewAddReportVO.dayData> dayDataList = dis.getDayDataList();
          Map<String, List<StoreNewAddReportVO.dayData>> collectMap = Maps.newHashMap();
          if (CollectionUtils.isNotEmpty(dayDataList)) {
            collectMap = dayDataList.stream().collect(Collectors.groupingBy(StoreNewAddReportVO.dayData::getDayStr));
          }
          List<Map<String, Object>> list_1 = new ArrayList<>();
          Map<String, Object> valMap_1 = new HashMap<>();
          for (int j = 1; j <= dayNum; j++) {
            List<StoreNewAddReportVO.dayData> dayData = collectMap.get(String.valueOf(j));
            int applyflag = 0;
            int adoptflag = 0;
            if (CollectionUtils.isNotEmpty(dayData)) {
              applyflag = dayData.get(0).getApplyNum();
              adoptflag = dayData.get(0).getAdoptNum();
            }
            valMap_1.put(\"applyNum\" + j, applyflag);
            valMap_1.put(\"adoptNum\" + j, adoptflag);
          }
          list_1.add(valMap_1);
          valMap.put(\"day\", list_1);
          list.add(valMap);
        }
        //导出
        Workbook workbook = ExcelExportUtil.exportExcel(new ExportParams(\"【\" + request.getMonthStr() + \"】门店注册日明细数据\", \"数据\"), colList, list);
        Sheet sheet = workbook.getSheet(\"数据\");
        Row row = sheet.getRow(sheet.getLastRowNum());
        Cell cell = row.getCell(0);
        cell.setCellValue(\"总计\");
        CellStyle cellStyle = workbook.createCellStyle();
        cellStyle.setAlignment(HorizontalAlignment.CENTER);//水平居中
        cellStyle.setVerticalAlignment(VerticalAlignment.CENTER);//垂直居中
        Font font = workbook.createFont();
        font.setFontHeightInPoints((short) 15);
        font.setFontName(\"Trebuchet MS\");
        cellStyle.setFont(font);
        cell.setCellStyle(cellStyle);
        CellRangeAddress range_0 = new CellRangeAddress(sheet.getLastRowNum(), sheet.getLastRowNum(), 0, 3);
        sheet.addMergedRegion(range_0);
        File file = new File(\"D:\\\\\".concat(UUID.randomUUID().toString().concat(\".xls\")));
		    FileOutputStream fileOutputStream = null;
		    try {
		      fileOutputStream = new FileOutputStream(file);
		      workbook.write(fileOutputStream);
		    } catch (Exception e) {
		      log.error(\"门店注册日workbook写入到文件中失败，错误信息：{}\", ExceptionUtils.getStackTrace(e));
		    } finally {
		      if (null != fileOutputStream) {
		        try {
		          fileOutputStream.close();
		        } catch (IOException e) {
		          //skip
		        }
		      }
		    }

具体的API细节就不介绍了可以去官网，关键在于ExcelExportEntity 这个类，它是以map形式展现的，创建的时候设置key，设置value的根据key进行设置，上面一些StoreNewAddReportVO还有其他是我的业务类，到时候可以替换掉。

到此这篇关于Java中EasyPoi导出复杂合并单元格的方法的文章就介绍到这了,更多相关Java EasyPoi导出单元格内容请搜索自学编程网以前的文章或继续浏览下面的相关文章希望大家以后多多支持自学编程网！