java写入.dat文件

public static void writeDatFile(List<Object> list, String fileName)
			throws Exception {
		FileOutputStream fos = null;
		ObjectOutputStream oos = null;
		try {
			fos = new FileOutputStream(fileName);
			oos = new ObjectOutputStream(fos);
			for (int i = 0; i < list.size(); i++) {
				oos.writeObject(list.get(i));
				oos.flush();
			}
		} catch (Exception e) {
			System.out.println(e.getMessage());
		} finally {
			if (oos != null) {
				oos.close();
			}
			if (fos != null) {
				fos.close();
			}
		}
	}