java 類轉換成byte[]與byte[]轉換成java類的方法，bytejava

java 類轉換成byte[]與byte[]轉換成java類的方法，bytejava
首先對象要繼承Serializable介面 

    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) ...{}