讀取TXT檔案的方法

public String uploadTxtInfo(File txtFile, String fileName, User currentUser) throws IOException {
        String msg = null;
        try {
            //構造一個BufferedReader類來讀取檔案
            BufferedReader br = new BufferedReader(new FileReader(txtFile));
            String s = null;
            while
 
((s = br.readLine())!=null){//使用readLine方法，一次讀一行
                System.out.println(s);
            }
            br.close();
        } catch (Exception e){
            e.printStackTrace();
        }
        return msg;
    }