java中把对象转化为byte数组的方法

首先对象要继承Serializable接口

private static java.lang.Object ByteToObject(byte[] bytes) {
	java.lang.Object obj;
	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;
}

 

public byte[] ObjectToByte(java.lang.Object obj) {
	byte[] bytes;
	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);
}