POI解析Excel代码

// 批量区域数据导入
    @Action(value = "area_batchImport")
    public String batchImport() throws IOException {
        List<Area> areas = new ArrayList<Area>();
        // 编写解析代码逻辑
        // 基于.xls 格式解析 HSSF
        // 1、 加载Excel文件对象
        HSSFWorkbook hssfWorkbook = new HSSFWorkbook(new FileInputStream(file));
        // 2、 读取一个sheet
        HSSFSheet sheet = hssfWorkbook.getSheetAt(0);
        // 3、 读取sheet中每一行
        for (Row row : sheet) {
            // 一行数据 对应 一个区域对象
            if (row.getRowNum() == 0) {
                // 第一行 跳过
                continue;
            }
            // 跳过空行
            if (row.getCell(0) == null
                    || StringUtils.isBlank(row.getCell(0).getStringCellValue())) {
                continue;
            }
            Area area = new Area();
            area.setId(row.getCell(0).getStringCellValue());
            area.setProvince(row.getCell(1).getStringCellValue());
            area.setCity(row.getCell(2).getStringCellValue());
            area.setDistrict(row.getCell(3).getStringCellValue());
            area.setPostcode(row.getCell(4).getStringCellValue());
            // 基于pinyin4j生成城市编码和简码
            String province = area.getProvince();
            String city = area.getCity();
            String district = area.getDistrict();
            province = province.substring(0, province.length() - 1);
            city = city.substring(0, city.length() - 1);
            district = district.substring(0, district.length() - 1);
            // 简码
            String[] headArray = PinYin4jUtils.getHeadByString(province + city
                    + district);
            StringBuffer buffer = new StringBuffer();
            for (String headStr : headArray) {
                buffer.append(headStr);
            }
            String shortcode = buffer.toString();
            area.setShortcode(shortcode);
            // 城市编码
            String citycode = PinYin4jUtils.hanziToPinyin(city, "");
            area.setCitycode(citycode);

            areas.add(area);
        }
        // 调用业务层
        areaService.saveBatch(areas);

        return NONE;
    }