读取文件成字符串

public String readFromFile(File src) {        try {            BufferedReader bufferedReader = new BufferedReader(new FileReader(                    src));            StringBuilder stringBuilder = new StringBuilder();            String content;            while((content = bufferedReader.readLine() )!=null){                stringBuilder.append(content);            }            return stringBuilder.toString();        } catch (FileNotFoundException e) {            // TODO Auto-generated catch block            e.printStackTrace();            return null;        } catch (IOException e) {            // TODO Auto-generated catch block            e.printStackTrace();            return null;        }    }