二进制和java对象的相互转换

序列化存储对象数据需要将数据需要转换成二进制：

private static <T> byte[] toByteArray(T body) {
        ByteArrayOutputStream baos = null;
        ObjectOutputStream oos = null;
        try {
            baos = new ByteArrayOutputStream();
            oos = new ObjectOutputStream(baos);
            oos.writeObject(body);
            oos.flush();
            return baos.toByteArray();
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            try {
                if (baos != null) {
                    baos.close();
                }
                if (oos != null) {
                    oos.close();
                }
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
        return new byte[0];
    }

反序列化将二进制数据转换成java object对象：

private static Object toObject(byte[] data) {
        ByteArrayInputStream bais = null;
        ObjectInputStream ois = null;
        try {
            bais = new ByteArrayInputStream(data);
            ois = new ObjectInputStream(bais);
            return ois.readObject();
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            try {
                if (bais != null) {
                    bais.close();
                }
                if (ois != null) {
                    ois.close();
                }
            } catch (Exception ignore) {
                ignore.printStackTrace();
            }
        }
        return null;
    }