3.5 clone sheet

poi4.0支持了sheet clone功能,这个为我们的一个模板导出N个sheet提供了基础支持,鉴于此该功能面世,使用也相当简单

    /**
     * 导出文件通过模板解析只有模板,没有集合
     * 每个sheet对应一个list,按照数量进行导出排序,key是sheet的NUM
     * @param params
     *            导出参数类
     * @param map
     *            模板集合
     * @return
     */
    public static Workbook exportExcelClone(Map<Integer, List<Map<String, Object>>> map,
                                       TemplateExportParams params) {
        return new ExcelExportOfTemplateUtil().createExcelCloneByTemplate(params, map);
    }

把自己需要导出很多份的数据组装到list里面统一个模板的map放到一个list,然后就是原始的模板sheetIndex,这样对比下来给你组装成你想要的,具体可以参考下demo

@Test
    public void cloneTest() throws Exception {
        TemplateExportParams params = new TemplateExportParams(
                "doc/exportTemp.xls", true);
        params.setHeadingRows(2);
        params.setHeadingStartRow(2);
        params.setStyle(ExcelStyleType.BORDER.getClazz());
        List<Map<String, Object>> numOneList = new ArrayList<>();
        for (int i = 0; i < 10; i++) {
            Map<String, Object> map = new HashMap<String, Object>();
            //sheet 1
            map.put("year", "2013" + i);
            map.put("sunCourses", list.size());
            Map<String, Object> obj = new HashMap<String, Object>();
            map.put("obj", obj);
            obj.put("name", list.size());
            // sheet 2
            map.put("month", 10);
            Map<String, Object> temp;
            for (int j = 1; j < 8; j++) {
                temp = new HashMap<String, Object>();
                temp.put("per", j * 10 + "---" + i);
                temp.put("mon", j * 1000);
                temp.put("summon", j * 10000);
                map.put("i" + j, temp);
            }
            map.put(SHEET_NAME, "啊啊测试SHeet" + i);
            numOneList.add(map);
        }


        List<Map<String, Object>> numTowList = new ArrayList<>();
        for (int i = 0; i < 15; i++) {
            Map<String, Object> oneMap = new HashMap<String, Object>();
            oneMap.put("list", list);
            oneMap.put(SHEET_NAME, "第二个测试SHeet" + i);
            numTowList.add(oneMap);
        }

        // 把两个list 数据 put到对应的模板KEY 下面去
        Map<Integer, List<Map<String, Object>>> realMap = new HashMap<>();
        realMap.put(1, numOneList);
        realMap.put(2, numTowList);

        Workbook book     = ExcelExportUtil.exportExcelClone(realMap, params);
        File     savefile = new File("D:/excel/");
        if (!savefile.exists()) {
            savefile.mkdirs();
        }
        FileOutputStream fos = new FileOutputStream("D:/excel/exportCloneTemp.xls");
        book.write(fos);
        fos.close();

    }