BufferedReader读取文件

//读取文件名为fileName的文件    private String readFile(String fileName)    {        //存储读取结果        String result = new String();        try {            //读取assets目录下的文件            InputStream is = getAssets().open(fileName);            //按行读取            BufferedReader reader = new BufferedReader(new InputStreamReader(is));            String line = null;            //按行读,直到读到null循环结束            while ((line = reader.readLine())!=null) {                result += line;//拼接结果            }            //关闭流            reader.close();            is.close();        } catch (IOException e) {            // TODO Auto-generated catch block            e.printStackTrace();        }        return result;//将结果返回    }