How to serialize a object to DataBase?

Question

A feasible way is that serialize the object to a file and then store this file to database. But I want to achieve it directly. How could I do?

Answer 1

     * Convert a serializable object to a byte array.
     * @param serializable Object to convert.
     * @return Byte array or null if failed.
     * @throws IOException on error.
    static public byte[] toByteArray(Serializable serializable) throws IOException {
        byte[] result = null;
        if (serializable != null) {
            ObjectOutputStream oos = null;
            try {
                ByteArrayOutputStream baos = new ByteArrayOutputStream();
                oos = new ObjectOutputStream(baos);
                oos.writeObject(serializable);
                result = baos.toByteArray();
            } finally {
                if (oos != null) {
                    oos.flush();
                    oos.close();
        }//else: input unavailbel
        return result;
    }//toByteArray()
byte[] ba = toByteArray(mySerializableObject);
ByteArrayInputStream bais = new ByteArrayInputStream(ba);
preparedStatement.setBinaryStream("BINDATA", bais, ba.length)