스프링 시큐리티 롤 권한 가져오기

@Override
	public Collection<? extends GrantedAuthority> getAuthorities() {
		
		List<GrantedAuthority> authorities = new ArrayList<GrantedAuthority>();
		authorities.add( () -> ("ROLE_USER"));
		
		return authorities;
	}

 

 

Iterator<? extends GrantedAuthority> iter = principal.getAuthorities().iterator();
		while (iter.hasNext()) {
			GrantedAuthority auth = iter.next();
			System.out.println(auth.getAuthority());