Object to Byte Array and back again?

[Stevoie]

anyone know how to convert any java object to a byte array then convert it back again?
thanx


StevoIE

 

[globos]

See java API documentation :

- Write to an OutputStream an object whose class implements Serializable :

http://java.sun.com/j2se/1.4.2/docs/api/java/io/ObjectOutputStream.html

- Read from an InputStream an object whose class implements Serializable :

http://java.sun.com/j2se/1.4.2/docs/api/java/io/ObjectInputStream.html

I've never used these classes, I think they are the right ones to use, anyway you must deal with the Serializable interface.

--
Globos

 

[Stevoie]

/**
*
* @param obj
* @return
* @throws java.io.IOException
*/
public byte[] convertObjectToBytes(Object obj) throws java.io.IOException{
ByteArrayOutputStream bos = new ByteArrayOutputStream();
ObjectOutputStream oos = new ObjectOutputStream(bos);
oos.writeObject(obj);
oos.flush();
oos.close();
bos.close();
byte [] data = bos.toByteArray();
return data;
}

/**
*
* @param obj
* @return
* @throws java.io.IOException
*/
public Object convertBytesToObject(byte[] bytes) throws java.io.IOException{

Object convertedObj = null;

ByteArrayInputStream bos = new ByteArrayInputStream(bytes);
ObjectInputStream oos = new ObjectInputStream(bos);
try{
convertedObj = (Object) oos.readObject();
}catch(Exception ex){
;
}
oos.close();
bos.close();

return convertedObj;
}

StevoIE