POI基于jdk8lambda表达式风格的excel导入工具类

使用方法ExcelKit.load(file).read(0,0,excelCell->{Salesale=newSale();excelCell.when("商品id",cell->sale.setProductId(cell.getStringCellValue())).when("商品名称",cell->sale.setTitle(cell.getStringCellValue())).when("商品主图",ce