nanjing_nft/src/main/java/com/izouma/nineth/security/JwtUserDetailsService.java

package com.izouma.nineth.security;

import com.izouma.nineth.domain.User;
import com.izouma.nineth.repo.UserRepo;
import lombok.AllArgsConstructor;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.core.userdetails.UsernameNotFoundException;
import org.springframework.stereotype.Service;

@AllArgsConstructor
@Service("jwtUserDetailsService")
public class JwtUserDetailsService implements UserDetailsService {
    private UserRepo userRepo;

    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
        Long userId = Long.parseLong(username);
        User user = userRepo.findById(userId).orElseThrow(null);

        if (user == null) {
            throw new UsernameNotFoundException(String.format("No user found with username '%s'.", username));
        } else {
            return JwtUserFactory.create(user);
        }
    }
}