byte放到list中

任何文件都可以转化成byte，然后放到list中。

private static List readFile(File file) throws IOException
	{
		List list = new ArrayList();
		InputStream inStream=new FileInputStream(file);
		int byteread =0;
		
		byte temp[] = new byte[1024];
		while((byteread=inStream.read(temp)) != -1)
		{
			byte[] t = new byte[byteread];
			System.arraycopy(temp, 0, t, 0, byteread);
			list.add(t);
		}
		inStream.close();
		return list;
	}

然后list就可以远程传递，序列号，储存。。。

之后，把list再转化成file ：

public static void writeFile(List<byte[]> list,String fileName) throws IOException{
		File file = new File(fileName);
		if(!new File(file.getParent()).isDirectory())
		{
			new File(file.getParent()).mkdirs(); 
		}
		if(!file.exists())
			file.createNewFile();

		OutputStream outStream = new FileOutputStream(file);
		for(byte[] b:list)
			outStream.write(b);
		
		outStream.flush();
		outStream.close();
	}