java将数据写入.txt文件（简单的IO操作）

<u>啥话不说直接上demo：</u>

    将数据写入txt文件
     文件写入操作
    File directory = new File("E:/outputData/");
    directory.mkdir();//创建文件夹
    FileOutputStream outputStream = null;
    try {
        File file = new File("E:/outputData/userData.txt");
        if(!file.exists()) {
            file.createNewFile();
        }
        outputStream = new FileOutputStream(file,true);//形参里面可追加true参数，表示在原有文件末尾追加信息
        String data ="userId: "+ userId+"\t"+"username: "+ username+"\t"+"questionId: "+questionId+"\t"+"进入答题页面时间: "+loginInTime+"\t"
                +"离开答题页面时间: "+leaveTime+"\t"+"页面停留时间： "+timeIntervalDate+"\r\n";
        outputStream.write(data.getBytes("utf-8"));
        result.setStatus(ResultStatus.SUCCESS.getCode());
    } catch (IOException e) {
        e.printStackTrace();
    } finally {
        try {
            outputStream.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }