实体类注解

@ContentRowHeight(int):      设置 row 高度,不蕴含表头      标记在 类上@HeadRowHeight(int):     设置 表头 高度(与 @ContentRowHeight 相同)     标记在 类上@ColumnWidth(int):     设置列宽     标记在属性上@ExcelProperty(value = String[], index = int):    设置表头信息    value: 表名称    index: 列号      ##### 少用    @DateTimeFormat:    @NumberFormat:      BrowsingExcelHistory browsingExcelHistory = new BrowsingExcelHistory();      @Overridepublic WGJsonResult userFeedBackExport(UserFeedBack param, HttpServletResponse response) throws IOException {    List<UserFeedBack> userFeedBackLists = userFeedBackMapper.getList(param);    response.setContentType("application/vnd.ms-excel");    response.setCharacterEncoding("utf-8");    SimpleDateFormat sdf4 = new SimpleDateFormat("yyyy_MM_dd_hh_mm_ss");    String nowDate = sdf4.format(new Date());    String fileName = nowDate+ ".xlsx";    response.setHeader("Content-disposition", "attachment;filename=" + fileName );    EasyExcel.write(response.getOutputStream(), UserFeedBack.class).sheet("用户反馈记录").doWrite(userFeedBackLists);    return success("下载胜利");