java 导出excel（结合spring）

上代码

@RequestMapping(value = "/test", method = RequestMethod.GET)
    public Result test(HttpServletRequest request, HttpServletResponse response){
        
        try (OutputStream outputStream = response.getOutputStream()){
            response.setHeader("Content-Disposition","attachment; filename="+ URLEncoder.encode("哒哒", "UTF-8") +".xls");
            HSSFWorkbook wb = ExcelUtils.export(Arrays.asList("zm"));
            wb.write(outputStream);
            outputStream.flush();
        }catch (IOException e){
            LOGGER.error("exportOrderBill error. ", e);
            return Result.error("导出失败." + e.getMessage());
        }catch (Exception e){
            LOGGER.error("exportOrderBill error. ", e);
            return Result.error("导出失败." + e.getMessage());
        }


        return Result.error("导出失败.");
    }

    public static HSSFWorkbook export(Object data){
        HSSFWorkbook hwb = new HSSFWorkbook();
        //新增sheet
        HSSFSheet sheet = hwb.createSheet();

        int rowIndex = 0;
        Row headerRow = sheet.createRow(rowIndex++);
        String [] headers = {"姓名"};
        //设置表头
        for (int hIndex = 0; hIndex < headers.length ; hIndex++){
            headerRow.createCell(hIndex).setCellValue(headers[hIndex]);
        }

        //设置内容
        for (String str: list) {
            //新增行
            HSSFRow row = sheet.createRow(rowIndex++);
            int cellIndex = 0;
            //新增单元格
            row.createCell(cellIndex++).setCellValue(str); 
        }
        return hwb;
    }

遇到的问题

文件名乱码

尝试如下设置，没有用

response.setCharacterEncoding("utf-8");
response.setContentType("application/octet-stream;utf-8");
response.setHeader("Content-Disposition","attachment; filename="哒哒.xls");

效果如下：

没改过来啊。。。

再试：

response.setHeader("Content-Disposition","attachment; filename="+ URLEncoder.encode("哒哒", "UTF-8") +".xls");

好了，搞定。