byte写入txt文本

private static void writeByte(byte[] temp) {
    File file = new File("BitIO"+DateConstants.DATE_FORMAT_NUM().format(new Date())+".txt");
           //建立输出字节流
            FileOutputStream fos;
try {
if(!file.exists()){
         file.createNewFile();
            }
fos = new FileOutputStream(file);
            fos.write(temp);
            System.out.println("写入成功");
            //为了节省IO流的开销，需要关闭
           fos.close();
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
    }