try {

    //下面这句必须加，不然报错

    MultipartResolver resolver = new CommonsMultipartResolver(hsq.getSession().getServletContext());

    MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest) hsq;

​

    //获取一起跟文件传过来的其他参数值

    String id = multipartRequest.getParameter("id");

​

    //获取上传上来的文件

    Map<String, MultipartFile> fileMap = multipartRequest.getFileMap();

    for (Map.Entry<String, MultipartFile> entry : fileMap.entrySet()) {

        MultipartFile file = entry.getValue();

        String fileName = file.getOriginalFilename();

        System.out.println(fileName);

        String path = "C:\\Users\\user\\Desktop\\" + fileName;

        file.transferTo(new File(path));

    }

} catch (Exception e) {

    e.printStackTrace();

}