1.统一处理时间可选  数字

public class CommonExcelCellHandler implements CellWriteHandler {
    private final static Logger log = LoggerFactory.getLogger(UserController.class);

    /**
     * 列名存储列表 数据量超过500时，会刷新缓存，表头会丢失，所以要存一下，以便查找
     */
    private static final List<String> COLUMNS = new ArrayList<>();
    private Map<Integer, Map<Integer, Integer>> CACHE = new HashMap<>();
    /**
     * 时间+日期样式存储 一个excel的sheet页，最多可以创建64000个样式，频繁创建会倒是程序报错
     */
    private CellStyle dateTimeStyle;
    /**
     * 时间样式存储 一个excel的sheet页，最多可以创建64000个样式，频繁创建会倒是程序报错
     */
    private CellStyle dateStyle;
    /**
     * 金额样式存储 一个excel的sheet页，最多可以创建64000个样式，频繁创建会倒是程序报错 数值类型有问题的，主要原因是 dto 里定义的是 String 类型导致，如果是
     * double 与 Integer 类型则正常导出不需要传入处理
     */
    private CellStyle numberStyle;

    /**
     * 需要处理日期列名
     */
    private Object dateColumns;
    /**
     * 需要处理日期含时间的列名
     */
    private Object dateTimeColumns;
    /**
     * 需要处理数值的列名
     */
    private Object numberColumns;

    /**
     * 列宽时需要乘256
     */
    private Integer widthCommon = 256;

    /**
     * 初始化参数 注意：数值类型传入前提是列dto里数值类型的字段定义的是字符串类型（如果定义的是double或intger则不需要转换）
     *
     * @param map 传入需要特殊处理的三个类型 dateColumns、dateTimeColumns、numberColumns
     */
    public CommonExcelCellHandler(Map<String, Object> map) {
        COLUMNS.clear();
        dateTimeStyle = null;
        dateStyle = null;
        numberStyle = null;

        this.dateColumns = map.get("dateColumns");
        this.dateTimeColumns = map.get("dateTimeColumns");
        this.numberColumns = map.get("numberColumns");
    }

    @Override
    public void beforeCellCreate(WriteSheetHolder writeSheetHolder,
                                 WriteTableHolder writeTableHolder, Row row, Head head, Integer columnIndex,
                                 Integer relativeRowIndex, Boolean isHead) {

    }

    @Override
    public void afterCellCreate(WriteSheetHolder writeSheetHolder,
                                WriteTableHolder writeTableHolder, Cell cell, Head head, Integer relativeRowIndex,
                                Boolean isHead) {

    }

    @Override
    public void afterCellDataConverted(WriteSheetHolder writeSheetHolder, WriteTableHolder writeTableHolder, CellData cellData, Cell cell, Head head, Integer integer, Boolean aBoolean) {

    }

    @Override
    public void afterCellDispose(WriteSheetHolder writeSheetHolder,
                                 WriteTableHolder writeTableHolder, List<CellData> cellDataList, Cell cell, Head head,
                                 Integer relativeRowIndex, Boolean isHead) {

        // 列宽
        int width = 20;
        boolean needSetWidth = isHead || !CollectionUtils.isEmpty(cellDataList);
        if (needSetWidth) {
            Map<Integer, Integer> maxColumnWidthMap = CACHE.get(writeSheetHolder.getSheetNo());
            if (maxColumnWidthMap == null) {
                maxColumnWidthMap = new HashMap<>();
                CACHE.put(writeSheetHolder.getSheetNo(), maxColumnWidthMap);