excel处理工具类
PageSheetProcessor sheet1Processor = null;
PageSheetProcessor sheet2Processor = null;
//导出两个sheet,支持分页
ExcelUtils.exportExcel(stream, sheet1Processor,sheet2Processor);
SingleSheetProcessor sheet1Processor = null;
SingleSheetProcessor sheet2Processor = null;
//导出两个sheet,不支持分页
ExcelUtils.exportExcel(stream, sheet1Processor,sheet2Processor);