private String fileRootPath = "D:\\wwwroot\\java\\pic\\temp\\";
    private static final String CONTENT_DISPOSITION = "content-disposition";
    private static final String FILENAME_KEY = "filename=";
    private static final String FILENAME_WITH_CHARSET_KEY = "filename*=";

/**
     * 摄像头多图上传
     *
     * @return
     */
    @RequestMapping(value = "/viid/images/report/all/")
    public ApiResponse uploads(HttpServletRequest request) {
        List<FileItem> list = getFileItem(request);
        String faceBase64 = "";
        //遍历list，得到用于封装第一个上传输入项数据fileItem对象
        for (FileItem item : list) {
            if (item.isFormField()) {
                //得到的是普通输入项
                String name = item.getFieldName();  //得到输入项的名称
                String value = item.getString();
                System.out.println(name + "=" + value);
            } else {
                //得到上传输入项
                String filename = item.getName();  //得到上传文件名  C:\Documents and Settings\ThinkPad\桌面\1.txt
                System.out.println(filename);
            }
            MultipartFile mfile = new CommonsMultipartFile(item);
            //multipartUpload(mfile);
            // 通过base64来转化图片
            String filePath = multipartUpload(mfile);
            faceBase64 = localImageToBase64(filePath);
            try {
                semaphore.acquire();
                FaceFeature thisFaceFeature = faceExtract.execute(faceBase64);
                UserFace userFace = faceCompare.execute(thisFaceFeature);
                if (userFace == null) throw new ApiException(1103);
                return ApiResponse.successData(userFace);
            } catch (ApiException e) {
                return ApiResponse.error(e.getCode(), e.getMessage());
            } catch (Exception e) {
                return ApiResponse.error(0, e.getMessage());
            } finally {
                semaphore.release();
            }
        }
        return ApiResponse.error(0, "识别失败");
    }

/**
     * 获取到上传文件
     *
     * @param request
     * @return
     */
    private List<FileItem> getFileItem(HttpServletRequest request) {
        try {
            //1.得到解析器工厂
            DiskFileItemFactory factory = new DiskFileItemFactory();
            //2.得到解析器
            ServletFileUpload upload = new ServletFileUpload(factory);
            //3.判断上传表单的类型
            if (!upload.isMultipartContent(request)) {
                //上传表单为普通表单，则按照传统方式获取数据即可
                return null;
            }
            //为上传表单，则调用解析器解析上传数据
            List<FileItem> fileList = upload.parseRequest(request);  //FileItem
            return fileList;
        } catch (Exception e) {
            return null;
        }
    }

/**
     * 保存上传文件
     *
     * @param file
     * @return
     */
    private String multipartUpload(MultipartFile file) {
        String filePath = "";
        // 上传简单文件名
        String originalFilename = file.getOriginalFilename();
        // 存储路径
        filePath = new StringBuilder(fileRootPath)
                .append(System.currentTimeMillis())
                .append(originalFilename)
                .toString();
        try {
            // 保存文件
            System.out.println("保存文件");
            System.out.println(filePath);
            file.transferTo(new File(filePath));
        } catch (IOException e) {
            e.printStackTrace();
            System.out.printf("上传异常");
        }
        return filePath;
    }