SpringCloud Feign请求流文件

Provider

服务提供方接口返回流文件

 Consumer

消费者接受方式为fegn.Response，下载：

public ModelAndView getChecklistTree(HttpServletResponse servletResponse) {
        ModelAndView mv = new ModelAndView();
        mv.setView(new DownloadView());

        Response response = violationService.download();
        Response.Body body = response.body();
        Map<String, Collection<String>> headers = response.headers();
        InputStream fileInputStream = null;
        try {
            fileInputStream = body.asInputStream();
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            IOUtils.closeQuietly(fileInputStream);
        }
        try {
            String filename = Optional.ofNullable(headers.get("filename11")).map(m -> m.stream().collect(Collectors.toList()).get(0))
                    .orElse(URLEncoder.encode("分红方案-每股股息.xlsx", "utf-8"));
            mv.addObject(DownloadView.EXPORT_FILE, fileInputStream);
            mv.addObject(DownloadView.EXPORT_FILE_NAME, filename);
            mv.addObject(DownloadView.EXPORT_FILE_TYPE, DownloadView.FILE_TYPE.XLSX);
            servletResponse.setHeader("fileName", filename);
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
        }

        return mv;
    }