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[카카오로그인] REST API 카카오 로그인 구현 3 (로그인, 프로필 받아오기)
[카카오로그인] REST API 카카오 로그인 구현 3 (로그인, 프로필 받아오기)
2021.10.10 - [Project [study]/Social Login] - [카카오로그인] REST API 카카오 로그인 구현 2
로그인 후 유저 이름과 프로필사진을 받아와 보려고 한다.
https://developers.kakao.com/docs/latest/ko/kakaologin/rest-api#req-user-info
Properties(밑에서)부터 vo패키지에 파일을 만들어준다.
Properties.java
package edu.bit.ex.vo; import lombok.AllArgsConstructor; import lombok.Getter; import lombok.NoArgsConstructor; import lombok.Setter; import lombok.ToString; @Getter @Setter @AllArgsConstructor @NoArgsConstructor @ToString public class Properties { public String nickname; public String thumbnail_image; public String profile_image; }
Profile.java
package edu.bit.ex.vo; import lombok.AllArgsConstructor; import lombok.Getter; import lombok.NoArgsConstructor; import lombok.Setter; import lombok.ToString; @Getter @Setter @AllArgsConstructor @NoArgsConstructor @ToString public class Profile { public String nickname; public String thumbnail_image_url; public String profile_image_url; public Boolean is_default_image; }
KakaoAccount.java
Kakao_account부분
package edu.bit.ex.vo; import lombok.AllArgsConstructor; import lombok.Getter; import lombok.NoArgsConstructor; import lombok.Setter; import lombok.ToString; @Getter @Setter @AllArgsConstructor @NoArgsConstructor @ToString public class KakaoAccount { public Boolean profile_needs_agreement; public Profile profile; /* public Boolean email_needs_agreement; public Boolean is_email_valid; public Boolean is_email_verified; public String email; public Boolean age_range_needs_agreement; public String age_range; public Boolean birthday_needs_agreement; public String birthday; public Boolean gender_needs_agreement; public String gender; */ }
→필요한 부분만 남겨두고 주석 처리 한다. (동의 부분에서 프로필정보만 필수동의로 했기 때문에)
KakaoProfile.java
package edu.bit.ex.vo; import lombok.AllArgsConstructor; import lombok.Getter; import lombok.NoArgsConstructor; import lombok.Setter; import lombok.ToString; @Getter @Setter @AllArgsConstructor @NoArgsConstructor @ToString public class KakaoProfile { public Integer id; public Properties properties; public KakaoAccount kakao_account; }
KakaoService.java
package edu.bit.ex.service; import org.springframework.http.HttpEntity; import org.springframework.http.HttpHeaders; import org.springframework.http.HttpStatus; import org.springframework.http.ResponseEntity; import org.springframework.stereotype.Service; import org.springframework.util.LinkedMultiValueMap; import org.springframework.util.MultiValueMap; import org.springframework.web.client.RestTemplate; import com.google.gson.Gson; import edu.bit.ex.vo.KakaoAuth; import edu.bit.ex.vo.KakaoProfile; @Service public class KakaoService { //rest api키 private final static String K_CLIENT_ID="rest api키"; private final static String K_REDIRECT_URI="http://localhost:8282/ex/auth/kakao/callback"; // requst 요청 //GET /oauth/authorize?client_id={REST_API_KEY}&redirect;_uri={REDIRECT_URI}&response;_type=code HTTP/1.1 //Host: kauth.kakao.com public String getAuthoriationUrl() { String kakaoUrl = "https://kauth.kakao.com/oauth/authorize?" + "client_id=" + K_CLIENT_ID + "&redirect;_uri=" + K_REDIRECT_URI + "&response;_type=code"; return kakaoUrl; } //토큰받기 //"https://kauth.kakao.com/oauth/token" /* POST /oauth/token HTTP/1.1 Host: kauth.kakao.com Content-type: application/x-www-form-urlencoded;charset=utf-8 */ //request /* curl -v -X POST "https://kauth.kakao.com/oauth/token" \ -H "Content-Type: application/x-www-form-urlencoded" \ -d "grant_type=authorization_code" \ -d "client_id={REST_API_KEY}" \ --data-urlencode "redirect_uri={REDIRECT_URI}" \ -d "code={AUTHORIZE_CODE}" */ //response:성공 /* HTTP/1.1 200 OK Content-Type: application/json;charset=UTF-8 { "token_type":"bearer", "access_token":"{ACCESS_TOKEN}", "expires_in":43199, "refresh_token":"{REFRESH_TOKEN}", "refresh_token_expires_in":25184000, "scope":"account_email profile" } */ private final static String K_TOKEN_URI = "https://kauth.kakao.com/oauth/token"; public KakaoAuth getKakaoTokenInfo(String code) { // http 요청을 간단하게 해줄 수 있는 클래스 RestTemplate restTemplate = new RestTemplate(); //헤더구성 클래스(Set Header) / HttpHeader 오브젝트 생성 HttpHeaders headers = new HttpHeaders(); headers.add("Content-type", "application/x-www-form-urlencoded;charset=utf-8"); //파라미터 넘기기(Set Parameter) / HttpBody 오브젝트 생성 MultiValueMap params = new LinkedMultiValueMap<>(); params.add("grant_type", "authorization_code"); params.add("client_id", K_CLIENT_ID); params.add("redirect_uri", K_REDIRECT_URI); params.add("code", code); //set http entity / HttpHeader와 HttpBody를 하나의 오브젝트에 담기 HttpEntity> kakaoTokenRequest = new HttpEntity<>(params, headers); //실제 요청하기 //Http 요청하기 - POST 요청을 보내고 결과로 ResponseEntity로 반환 받는다. ResponseEntity response = restTemplate.postForEntity(K_TOKEN_URI, kakaoTokenRequest, String.class); //response에서 .getBody()와 .getHeaders()로 HTTP 메세지를 나눠서 확인할 수 있다. System.out.println("getBody() : " + response.getBody()); System.out.println("getHeaders() : " + response.getHeaders()); //http://www.jsonschema2pojo.org/ //json->자바코드로 //gson 라이브러리를 이용해서 Http 통신 결과가 200 OK 일 때 //response.getBody()의 JSON 데이터를 KakaoAuth.class에 담는다. Gson gson = new Gson(); if (response.getStatusCode() == HttpStatus.OK) { return gson.fromJson(response.getBody(), KakaoAuth.class); } return null; } //프로필 받아오기 /* curl -v -X GET "https://kapi.kakao.com/v2/user/me" \ -H "Authorization: Bearer {ACCESS_TOKEN}" //Header를 이렇게 만들어라 */ private final static String K_PROFILE_URI = "https://kapi.kakao.com/v2/user/me"; public KakaoProfile getKakaoProfile(String accessToken) { //http 요청을 간단하게 해줄 수 있는 클래스 RestTemplate restTemplate = new RestTemplate(); //헤더구성 클래스(Set Header) / HttpHeader 오브젝트 생성 HttpHeaders headers = new HttpHeaders(); headers.set("Authorization", "Bearer " + accessToken); //set http entity / HttpHeader와 HttpBody를 하나의 오브젝트에 담기 HttpEntity> request = new HttpEntity<>(null, headers); //실제 요청하기 //Http 요청하기 - POST 요청을 보내고 결과로 ResponseEntity로 반환 받는다. ResponseEntity response = restTemplate.postForEntity(K_PROFILE_URI, request, String.class); System.out.println("getBody() : " + response.getBody()); //gson 라이브러리를 이용해서 Http 통신 결과가 200 OK 일 때 //response.getBody()의 JSON 데이터를 KakaoAuth.class에 담는다. Gson gson = new Gson(); if(response.getStatusCode() == HttpStatus.OK) { return gson.fromJson(response.getBody(), KakaoProfile.class); } return null; } }
프로필 받아오기 부분을 추가해준다.
SocialController.java
package edu.bit.ex; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.web.bind.annotation.GetMapping; import edu.bit.ex.service.KakaoService; import edu.bit.ex.vo.KakaoAuth; import edu.bit.ex.vo.KakaoProfile; import lombok.extern.log4j.Log4j; //REST API 키 74ac062503f83a3d8797eb9fab8f5150 //Redirect URI http://localhost:8282/ex/auth/kakao/callback //request URL //https://kauth.kakao.com/oauth/authorize?client_id={REST_API_KEY}&redirect;_uri={REDIRECT_URI}&response;_type=code HTTP/1.1 //코드 //http://localhost:8282/ex/auth/kakao/callback?code=kZHRTq20GSzNeUrX7t8P_JPMYtvjjmgdh7vENQMo1I53Q0Yf4Fc-H-mF2a8UWdeC8ViMGwo9dRsAAAF8bhBaYw //토큰 요청 /* * POST /oauth/token HTTP/1.1 Host: kauth.kakao.com Content-type: * application/x-www-form-urlencoded;charset=utf-8 */ @Log4j @Controller public class SocialController { @Autowired private KakaoService kakaoService; @GetMapping("/social") public String social(Model model) { log.info("social().."); model.addAttribute("kakaoUrl", kakaoService.getAuthoriationUrl()); return"social/login"; } @GetMapping("/auth/kakao/callback") public String social1(String code, Model model) { //1.인증코드 받기 System.out.println("code : " + code); //2.인증코드 받아서 넘기기 KakaoAuth kakaoAuth = kakaoService.getKakaoTokenInfo(code); //3.프로필 받아오기 KakaoProfile profile = kakaoService.getKakaoProfile(kakaoAuth.getAccess_token()); model.addAttribute("user", profile); return "social/social_home"; } }
프로필 받아오기 부분을 추가해준다.
결과
카카오계정으로 로그인 클릭
로그인 후
유저이름과 프로필사진을 확인할 수 있다.
from http://nxxrxx.tistory.com/24 by ccl(A) rewrite - 2021-10-12 14:02:02