@GetMapping(value = "downLoadExcel")
    public void downLoadExcel() {
        InputStream fis = null;
        ServletOutputStream sos = null;
        ByteArrayOutputStream os = new ByteArrayOutputStream();

        try {
            Workbook workbookTwo = new XSSFWorkbook(getClass().getClassLoader().getResourceAsStream("importExcel.xlsx"));
            sos = response.getOutputStream();
            workbookTwo.write(os);
            response.setContentType("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet");
            response.setCharacterEncoding("utf-8");
            // 这里URLEncoder.encode可以防止中文乱码 当然和easyexcel没有关系
            String fileName = URLEncoder.encode("test.xlsx", "UTF-8");
            response.setHeader("Content-disposition", "attachment;filename=" + fileName);
            sos.write(os.toByteArray());
            sos.flush();
        } catch (Exception e) {

        } finally {
            if (fis != null) {
                try {
                    fis.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            if (os != null) {
                try {
                    os.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            if (sos != null) {
                try {
                    sos.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }

        }
    }