对象与Byte数组相互转化工具方法

/**
     * 对象转byte
     * @param obj
     * @return
     */
    private byte[] ObjectToByte(Object obj) {
        byte[] bytes = null;
        try {
            // object to bytearray
            ByteArrayOutputStream bo = new ByteArrayOutputStream();
            ObjectOutputStream oo = new ObjectOutputStream(bo);
            oo.writeObject(obj);  

            bytes = bo.toByteArray();  

            bo.close();
            oo.close();
        } catch (Exception e) {
            System.out.println("translation" + e.getMessage());
            e.printStackTrace();
        }
        return bytes;
    } 

    /**
     * byte转对象
     * @param bytes
     * @return
     */
    private Object ByteToObject(byte[] bytes) {
        Object obj = null;
        try {
            // bytearray to object
            ByteArrayInputStream bi = new ByteArrayInputStream(bytes);
            ObjectInputStream oi = new ObjectInputStream(bi);

            obj = oi.readObject();
            bi.close();
            oi.close();
        } catch (Exception e) {
            System.out.println("translation" + e.getMessage());
            e.printStackTrace();
        }
        return obj;
    }