接收接口：

 @At("/api/data/get/file")
    @Ok("json")
    @Override
    public Responze getData(@Param("file") File file) {
      
        if(file == null){
                return new Responze(Codes.FAILURE, "获取业务数据失败，没有上传任何文件.");
        }else{
			
        }
    }

上传：

            Request req = Request.create("http://localhost/icov/api/data/get/file", Request.METHOD.POST);
            File f = Files.findFile("file/cert01.jpg");
            req.getParams().put("file", f);
            FilePostSender sender = new FilePostSender(req);
            Response resp = sender.send();
            assertEquals("image&3", resp.getContent());

接收到的file参数一直是null.