feat:login response Body수정

src/main/java/com/example/babywithus/jwt/LoginFilter.java

@@ -12,6 +12,7 @@
 import org.springframework.security.core.GrantedAuthority;
 import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;
 
+import java.io.IOException;
 import java.util.Collection;
 import java.util.Iterator;
 
@@ -29,7 +30,7 @@ public Authentication attemptAuthentication(HttpServletRequest request, HttpServ
         String password=obtainPassword(request);
         System.out.println(username);
 
-            //스프링 시큐리티에서 username과 password를 검증하기 위해서는 token에 담아야 함
+        //스프링 시큐리티에서 username과 password를 검증하기 위해서는 token에 담아야 함
         UsernamePasswordAuthenticationToken authToken = new UsernamePasswordAuthenticationToken(username, password, null);
 
         //token에 담은 검증을 위한 AuthenticationManager로 전달
@@ -39,7 +40,7 @@ public Authentication attemptAuthentication(HttpServletRequest request, HttpServ
 
     //로그인 성공시 실행하는 메소드 (여기서 JWT를 발급하면 됨)
     @Override
-    protected void successfulAuthentication(HttpServletRequest request, HttpServletResponse response, FilterChain chain, Authentication authentication) {
+    protected void successfulAuthentication(HttpServletRequest request, HttpServletResponse response, FilterChain chain, Authentication authentication)throws IOException {
 
         CustomMemberDetails customMemberDetails = (CustomMemberDetails) authentication.getPrincipal();
 
@@ -56,6 +57,16 @@ protected void successfulAuthentication(HttpServletRequest request, HttpServletR
 
         response.addHeader("Authorization", "Bearer " + token);
 
+        // JSON 형식으로 응답 본문 작성
+        response.setContentType("application/json");
+        response.setCharacterEncoding("UTF-8");
+
+        // JSON 객체 생성
+        String jsonResponse = String.format("{\"token\": \"%s\"}", token);
+
+        // 응답 본문에 JSON 객체 쓰기
+        response.getWriter().write(jsonResponse);
+
 
     }