I want to save a Key in Mysql as String

ok
so I'm trying to store a key for late for later use with a password
and i can get as far as saving and retrieving it. but can't use it
again
this is what i have:

KeyGenerator kg = KeyGenerator.getInstance("DES");
Key key = kg.generateKey();
Cipher cipher = Cipher.getInstance("DES");

cipher.init(Cipher.ENCRYPT_MODE,key);
byte[] encrypted_password = cipher.doFinal(password.getBytes());
JOptionPane.showMessageDialog(null,"Encrypted Password "+ new
String(encrypted_password));

String coughtPassword = new String(encrypted_password);

cipher.init(Cipher.WRAP_MODE,key);
byte[] keyAsByte = cipher.wrap(key);
String keyAsString = new String(keyAsByte);

//coughtpassword and keyAsString are save in mySql by a Dao

// the piece i have been unable to do is here i want to reconstruct
keyAsString into the workable key2
//any suggestions are welcome

cipher.init(Cipher.DECRYPT_MODE,key2);
byte[] decrypted_password2 =
cipher.doFinal(coughtPassword.getBytes());
JOptionPane.showMessageDialog(null,"Decrypted Password "+new
String(decrypted_password2));