JWT - 24강 authenticationManager() 문제 해결책

버전 문제로 authenticationManager() 안되면

SecurityConfig

@Configuration
@RequiredArgsConstructor
@EnableWebSecurity // 스프링 시큐리티 필터가 스프링 필터체인에 등록된다.
public class SecurityConfig {
	
	private final CorsConfig corsConfig; //
	private final CorsFilter corsFilter; // Bean 으로 등록되어 있어서 바로 가져다 써도됨 근데 나는 걍 위에 클래스에서 메소드 호출할거임~
	
	@Bean
	public SecurityFilterChain filterChain(HttpSecurity http) throws Exception {
		
		AuthenticationManager authenticationManager =  http.getSharedObject(AuthenticationManager.class);
		
//		http.addFilterBefore(new MyFilter3(), SecurityContextHolderFilter.class);
		http.csrf(CsrfConfigurer::disable);
//		http.sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS);
		http.sessionManagement((sessionManagement) -> 
								sessionManagement
									.sessionCreationPolicy(SessionCreationPolicy.STATELESS));
		http.addFilter(corsConfig.corsFilter()); // @CrossOrigin(인증X), 시큐리티 필터에 등록인증(O)
//		http.formLogin().disable();
		http.formLogin((form)->
						form.disable());
//		http.httpBasic().disable();
		http.httpBasic((basic)->
						basic.disable());
		http.addFilter(new JwtAuthenticationFilter(authenticationManager)); // AuthenticationManger
		http.authorizeHttpRequests(authorize -> authorize.requestMatchers("/user/**").authenticated()
				.requestMatchers("/manager/**").hasAnyRole("ADMIN", "MANAGER")
				.requestMatchers("/admin/**")
				.hasAnyRole("ADMIN").anyRequest().permitAll());
		return http.build();
	}
}

JwtAuthenticationFilter

// 스프링 시큐리티에서 UsernamePasswordAuthenticationFilter 가 있음
// /login 요청해서 username, password 전송하면 (post)
// UserPasswordAuthenticationFilter가 동작을 함
@RequiredArgsConstructor
public class JwtAuthenticationFilter extends UsernamePasswordAuthenticationFilter {
	
	private final AuthenticationManager authenticationManager;
	
	// /login 요청을 하면 로그인 시도를 위해서 실행되는 함수
	@Override
	public Authentication attemptAuthentication(HttpServletRequest request, HttpServletResponse response)
			throws AuthenticationException {
		System.out.println("로그인 시도: JwtAuthenticationFilter");
		return super.attemptAuthentication(request, response);
	}
	
}