上传图片带参数总是没有数据

[wzxlucky]

    MyOkHttp mMyOkhttp = new MyOkHttp();

    mMyOkhttp.upload()
            .url(有地址)
            .addParam("sid", "2fa35b10-4ec8-4f3d-b808-ba9c1e6a43f5")
            .addParam("modelname", "gms")
            .addFile("", file)
            .tag(this)
            .enqueue(new GsonResponseHandler<Response>() {

                @Override
                public void onFailure(int statusCode, String error_msg) {
                    Log.i("onFailure", "onFailure: 执行了");
                }

                @Override
                public void onSuccess(int statusCode, Response response) {
                    Log.i("onSuccess", "onSuccess: 执行了");
                }
            });
}