AES encryption and decryption wiht salted key

I can't decrypt file with different salt and same password. Mybe I don't understand the concept. How does it work? Should I store static salt?

public static SecretKey getKeyFromPassword(String password) throws Exception {
    byte[] salt = "123456".getBytes();
    //SecureRandom random = new SecureRandom();
    //random.nextBytes(salt);

    SecretKeyFactory factory = SecretKeyFactory.getInstance("PBKDF2WithHmacSHA256");
    KeySpec spec = new PBEKeySpec(password.toCharArray(), salt, 65536, 256);
    SecretKey secret = new SecretKeySpec(factory.generateSecret(spec).getEncoded(), "AES");
    return secret;
}