@RequestMapping("download4Excel")

    public void download4Excel(HttpServletResponse response){

        XSSFWorkbook workbook = new XSSFWorkbook();

        XSSFSheet sheet = workbook.createSheet("测试Sheet");

        sheet.setColumnWidth(1, 7000);

        Row row = sheet.createRow(0);

        Cell cell = row.createCell(1);

        cell.setCellValue("德玛西亚");

        try {

            response.setContentType("multipart/form-data");

            response.setHeader("Content-Disposition", "attachment;filename="+ URLEncoder.encode("测试生成Excel文件.xlsx", "utf-8"));

            OutputStream outputStream = response.getOutputStream();

            workbook.write(outputStream);

            outputStream.close();

            workbook.close();

        } catch (UnsupportedEncodingException e1) {

            // TODO Auto-generated catch block

            e1.printStackTrace();

        } catch (IOException e) {

            // TODO Auto-generated catch block

            e.printStackTrace();

        } 

    }