当我重复播放一个文件的时候，爆出各种错， isPlaying stop,都会不同的报错，下面是我的代码，请大家帮助下！ 谢谢！

public void playerVoice(String json) {
        if (TextUtils.isEmpty(json))
            return;
        JSONObject jsonObject = JSON.parseObject(json);

        if (player == null) {
            player = new MediaPlayer();
            player.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
                @Override
                public void onPrepared(MediaPlayer mp) {
                    player.start();
                }
            });
            player.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
                @Override
                public void onCompletion(MediaPlayer mp) {
                    mp.stop();
                    mp.reset();
                }
            });
        }

        try {
            if (player.isPlaying()) {
                player.stop();
                player.reset();
            }

        } catch (Exception e) {
            player.stop();
            player.reset();
        }


        try {
            player.setDataSource(jsonObject.getString("fullPath"));
            player.prepareAsync();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }