DionysusUserDetailsService.java

package com.huixinpn.dionysus.auth;


import org.springframework.beans.factory.annotation.Autowired;
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;

import com.huixinpn.dionysus.domain.user.User;
import com.huixinpn.dionysus.repository.user.UserRepository;

@Service("dionysus")
public class DionysusUserDetailsService implements UserDetailsService {

	@Autowired
	private UserRepository userRepository;

	@Override
	public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
		User user = userRepository.findByUsername(username);
        if (user == null) {
            throw new UsernameNotFoundException("user not found");
        }
        return user;
	}

}