user service & repo

package cc.serviceops.account.dao;
import cc.serviceops.account.User;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.data.jpa.repository.Query;
import org.springframework.data.repository.query.Param;
import java.util.List;

public interface UserRepository extends JpaRepository<User, Integer> {}

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other file
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    @Override
    public User saveGuest(User user) {
        String password = passwordEncoder.encode(user.getPassword());
        user.setPassword(password);
        return userRepository.save(user);
    }