1. AuthenticationFilter란?- Spring Security를 이용한 로그인 요청 발생 시 작업을 처리해 주는 Custom Filter 클래스 2. User-Service -> AuthenticationFilter.java@Slf4jpublic class AuthenticationFilter extends UsernamePasswordAuthenticationFilter { // final AuthenticationManager authenticationManager; private final UserService userService; private final Environment env; public AuthenticationFilter(Authenticat..
