인프런 커뮤니티 질문&답변

카카오로 access토큰 받아오고 나서

api서버에서 kakao로 사용자 정보 호출 시 오류가 나네요..

어떤 부분을 수정해야 할지 잘 감이 안오네요.

Not injecting HSTS header since it did not match request to [Is Secure]

--아래 로그

1-28T17:15:42.369+09:00 TRACE 26452 --- [apiserver] [nio-8080-exec-2] o.s.security.web.FilterChainProxy : Invoking ExceptionTranslationFilter (13/13)

2024-11-28T17:15:42.369+09:00 DEBUG 26452 --- [apiserver] [nio-8080-exec-2] o.s.security.web.FilterChainProxy : Secured GET /api/member/kakao?accessToken=s0KvFDK1upVad8mdV-4lSc8WG_NwqUV7AAAAAQoqJVAAAAGTcdcZj6ew61y3DOUZ

2024-11-28T17:15:42.370+09:00 INFO 26452 --- [apiserver] [nio-8080-exec-2] o.z.a.controller.SocialController : accessToken : s0KvFDK1upVad8mdV-4lSc8WG_NwqUV7AAAAAQoqJVAAAAGTcdcZj6ew61y3DOUZ

2024-11-28T17:15:42.372+09:00 INFO 26452 --- [apiserver] [nio-8080-exec-2] o.z.apiserver.service.MemberServiceImpl : response 1------------------------------

2024-11-28T17:15:42.405+09:00 TRACE 26452 --- [apiserver] [nio-8080-exec-2] o.s.s.w.header.writers.HstsHeaderWriter : Not injecting HSTS header since it did not match request to [Is Secure]

2024-11-28T17:15:42.405+09:00 ERROR 26452 --- [apiserver] [nio-8080-exec-2] o.a.c.c.C.[.[.[/].[dispatcherServlet] : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed: org.springframework.web.client.ResourceAccessException: I/O error on GET request for "https://kapi.kakao.com/v2/user/me": PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target] with root cause

sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target

at java.base/sun.security.provider.certpath.SunCertPathBuilder.build(SunCertPathBuilder.java:148) ~[na:na]

at java.base/sun.security.provider.certpath.SunCertPathBuilder.engineBuild(SunCertPathBuilder.java:129) ~[na:na]

at java.base/java.security.cert.CertPathBuilder.build(CertPathBuilder.java:297) ~[na:na]

-- 소스코드

private void getEmailFromAccessToken(String accessToken) {
    String kakaoGetUserURL = "https://kapi.kakao.com/v2/user/me";

    if(accessToken == null){
        throw new RuntimeException("Access Token is null");
    }

    RestTemplate restTemplate = new RestTemplate();

    HttpHeaders headers = new HttpHeaders();
    headers.add("Authorization", "Bearer " + accessToken);
    headers.add("Content-Type","application/x-www-form-urlencoded");
    HttpEntity<String> entity = new HttpEntity<>(headers);

    UriComponents uriBuilder = UriComponentsBuilder.fromHttpUrl(kakaoGetUserURL).build();

    log.info("uriBuilder " + uriBuilder);
    log.info("response 1------------------------------");
    ResponseEntity<LinkedHashMap> response =
            restTemplate.exchange(
                    uriBuilder.toString(),
                    HttpMethod.GET,
                    entity,
                    LinkedHashMap.class);


    log.info("response 2------------------------------");
    log.info(response);