public static String readLocalJson(Context context, String fileName){
    String jsonString="";
    String resultString="";
    try {
      BufferedReader bufferedReader=new BufferedReader(new InputStreamReader(
          context.getResources().getAssets().open(fileName)));
      while ((jsonString=bufferedReader.readLine())!=null) {
        resultString+=jsonString;
      }
    } catch (Exception e) {
      // TODO: handle exception
    }
    return resultString;
}

public static String readLocalJson(Context context, String fileName){
    String jsonString="";
    String resultString="";
    try {
      InputStream inputStream=context.getResources().getAssets().open(fileName);
      byte[] buffer=new byte[inputStream.available()];
      inputStream.read(buffer);
      resultString=new String(buffer,"GB2312");
    } catch (Exception e) {
      // TODO: handle exception
    }
    return resultString;
}