js代码中 写了一些文件,怎么在java代码中能访问到这些文件?

 File raceFile = new File(getContext().getFilesDir().getAbsolutePath() + File.separatorChar + "races.json");

            InputStreamReader reader = new InputStreamReader(new FileInputStream(raceFile), "UTF-8");
            BufferedReader bfreader = new BufferedReader(reader);
            String line;
            while ((line = bfreader.readLine()) != null) {
                racesJsonStr += line;
            }