EXCEL导出

Workbook workbook = ExcelExportUtil.exportExcel(new ExportParams(), pojoClass, list);
response.setCharacterEncoding("UTF-8");
response.setHeader("content-Type", "application/vnd.ms-excel");
response.setHeader("Content-Disposition",
        "attachment;filename=" + URLEncoder.encode(fileName, "UTF-8") + ".xls");
ServletOutputStream out = response.getOutputStream();
workbook.write(out);
out.flush();