Feat: 관리자 트랜잭션 로그 조회 구현

src/main/java/com/fisa/pg/config/security/SecurityConfig.java

@@ -88,11 +88,12 @@ public SecurityFilterChain authPublicFilterChain(HttpSecurity http) throws Excep
                 .build();
     }
 
+
     @Bean
     @Order(6) // 기타 허용된 공개 엔드포인트
     public SecurityFilterChain miscPublicFilterChain(HttpSecurity http) throws Exception {
         return configureCommon(http)
-                .securityMatcher("/actuator/health", "/favicon.ico", "/public/**")
+                .securityMatcher("/actuator/health", "/favicon.ico", "/public/**", "/images/**", "/css/**", "/js/**")
                 .authorizeHttpRequests(request ->
                         request.anyRequest().permitAll()
                 )

src/main/java/com/fisa/pg/controller/AdminController.java

@@ -2,7 +2,9 @@
 
 import com.fisa.pg.dto.response.ApiKeyResponseDto;
 import com.fisa.pg.dto.response.BaseResponse;
+import com.fisa.pg.dto.response.TransactionLogResponseDto;
 import com.fisa.pg.dto.response.WebhookResponseDto;
+import com.fisa.pg.service.AdminTransactionService;
 import com.fisa.pg.service.ApiKeyService;
 import com.fisa.pg.service.WebhookService;
 import lombok.RequiredArgsConstructor;
@@ -28,6 +30,8 @@ public class AdminController {
 
     private final WebhookService webhookService;
 
+    private final AdminTransactionService adminTransactionService;
+
     /**
      * 전체 API 키 목록 페이징 조회 API
      *
@@ -41,6 +45,18 @@ public ResponseEntity<BaseResponse<Page<ApiKeyResponseDto>>> getApiKeyList(Pagea
         return ResponseEntity.ok(BaseResponse.onSuccess("API 키 목록 조회 성공", data));
     }
 
+    /**
+     * 전체 트랜잭션 로그 조회 API
+     *
+     * @param pageable 페이지 정보
+     * @return 트랜잭션 로그 응답 DTO 페이지
+     */
+    @GetMapping("/transactions")
+    public ResponseEntity<BaseResponse<Page<TransactionLogResponseDto>>> getAllTransactions(Pageable pageable) {
+        Page<TransactionLogResponseDto> result = adminTransactionService.getAllTransactionLogs(pageable);
+        return ResponseEntity.ok(BaseResponse.onSuccess("전체 트랜잭션 조회 성공", result));
+    }
+
     /**
      * 관리자용 웹훅 목록 조회 API
      *

src/main/java/com/fisa/pg/dto/response/TransactionLogResponseDto.java

@@ -0,0 +1,65 @@
+package com.fisa.pg.dto.response;
+
+import com.fisa.pg.entity.payment.PaymentMethod;
+import com.fisa.pg.entity.transaction.TransactionLog;
+import com.fisa.pg.entity.transaction.TransactionStatus;
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+import java.time.LocalDateTime;
+
+@Data
+@Builder
+@NoArgsConstructor
+@AllArgsConstructor
+public class TransactionLogResponseDto {
+
+    /**
+     * 트랜잭션 로그 ID
+     */
+    private String transactionId;
+
+    /**
+     * 트랜잭션 로그 메시지
+     */
+    private String message;
+
+    /**
+     * 트랜잭션을 구성하는 금액
+     */
+    private Long amount;
+
+    /**
+     * 트랜잭션 상태
+     */
+    private TransactionStatus status;
+
+    /**
+     * 지불 방법
+     */
+    private PaymentMethod method;
+
+    /**
+     * 트랜잭션 발생 시각
+     */
+    private LocalDateTime date;
+
+    /**
+     * 가맹점 이름
+     */
+    private String merchantName;
+
+    public static TransactionLogResponseDto from(TransactionLog transactionLog) {
+        return TransactionLogResponseDto.builder()
+                .transactionId(transactionLog.getTransaction().getTransactionId())
+                .message(transactionLog.getMessage())
+                .amount(transactionLog.getTransaction().getAmount())
+                .status(transactionLog.getStatus())
+                .method(transactionLog.getTransaction().getPayment().getPaymentMethod())
+                .date(transactionLog.getTransaction().getRequestedAt())
+                .merchantName(transactionLog.getMerchant().getName())
+                .build();
+    }
+}

src/main/java/com/fisa/pg/repository/TransactionLogRepository.java

@@ -0,0 +1,11 @@
+package com.fisa.pg.repository;
+
+import com.fisa.pg.entity.transaction.TransactionLog;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.Pageable;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface TransactionLogRepository extends JpaRepository<TransactionLog, String> {
+
+    Page<TransactionLog> findAllByOrderByCreatedAtDesc(Pageable pageable);
+}

src/main/java/com/fisa/pg/service/AdminTransactionService.java

@@ -0,0 +1,27 @@
+package com.fisa.pg.service;
+
+import com.fisa.pg.dto.response.TransactionLogResponseDto;
+import com.fisa.pg.repository.TransactionLogRepository;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.Pageable;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+
+@Slf4j
+@Service
+@RequiredArgsConstructor
+public class AdminTransactionService {
+
+    private final TransactionLogRepository transactionLogRepository;
+
+    @Transactional(readOnly = true)
+    public Page<TransactionLogResponseDto> getAllTransactionLogs(Pageable pageable) {
+        log.info("[서비스 호출] 전체 트랜잭션 로그 조회 시작");
+
+        return transactionLogRepository.findAllByOrderByCreatedAtDesc(pageable)
+                .map(TransactionLogResponseDto::from);
+    }
+}

src/main/java/com/fisa/pg/service/PaymentService.java

@@ -12,6 +12,7 @@
 import com.fisa.pg.entity.payment.PaymentMethod;
 import com.fisa.pg.entity.payment.PaymentStatus;
 import com.fisa.pg.entity.transaction.Transaction;
+import com.fisa.pg.entity.transaction.TransactionLog;
 import com.fisa.pg.entity.transaction.TransactionStatus;
 import com.fisa.pg.entity.user.Merchant;
 import com.fisa.pg.exception.AppCardAuthenticationFailedException;
@@ -24,10 +25,7 @@
 import com.fisa.pg.feign.dto.card.request.CardPaymentApprovalRequestDto;
 import com.fisa.pg.feign.dto.card.response.BaseResponse;
 import com.fisa.pg.feign.dto.card.response.CardPaymentApprovalResponseDto;
-import com.fisa.pg.repository.BinInfoRepository;
-import com.fisa.pg.repository.PaymentRepository;
-import com.fisa.pg.repository.TransactionRepository;
-import com.fisa.pg.repository.UserCardRepository;
+import com.fisa.pg.repository.*;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.stereotype.Service;
@@ -53,6 +51,8 @@ public class PaymentService {
 
     private final UserCardRepository userCardRepository;
 
+    private final TransactionLogRepository transactionLogRepository;
+
     private static final SecureRandom random = new SecureRandom();
 
     /**
@@ -102,7 +102,17 @@ public PaymentCreateResponseDto createPayment(PaymentCreateRequestDto request, M
 
         transactionRepository.save(transaction);
 
-        // 4. 응답 반환
+        // 4. 트랜잭션 로그 생성
+        TransactionLog logEntry = TransactionLog.builder()
+                .transaction(transaction)
+                .message("결제 생성 완료")
+                .status(transaction.getTransactionStatus())
+                .merchant(merchant)
+                .createdAt(LocalDateTime.now())
+                .build();
+        transactionLogRepository.save(logEntry);
+
+        // 5. 응답 반환
         return PaymentCreateResponseDto.from(payment, merchant);
     }
 
@@ -141,6 +151,15 @@ public PaymentMethodUpdateResponseDto updatePaymentMethod(PaymentMethodUpdateReq
 
         log.info("결제 수단 {}로 업데이트 완료: paymentId={}, txnId={}", method, payment.getId(), transaction.getTransactionId());
 
+        TransactionLog logEntry = TransactionLog.builder()
+                .transaction(transaction)
+                .message("결제 수단 업데이트: " + method)
+                .status(transaction.getTransactionStatus())
+                .merchant(payment.getMerchant())
+                .createdAt(LocalDateTime.now())
+                .build();
+        transactionLogRepository.save(logEntry);
+
         // 결제 UI URL 생성 (11단계)
         String redirectUrl = generatePaymentRedirectUrl(payment, method);
 
@@ -227,6 +246,14 @@ public CardPaymentApprovalResponseDto processPaymentApproval(AppCardPaymentReque
             transaction.updateTransactionStatus(TransactionStatus.AUTH_FAILED);
             transactionRepository.save(transaction);
 
+            transactionLogRepository.save(TransactionLog.builder()
+                    .transaction(transaction)
+                    .message("앱카드 인증 실패")
+                    .status(transaction.getTransactionStatus())
+                    .merchant(payment.getMerchant())
+                    .createdAt(LocalDateTime.now())
+                    .build());
+
             // 인증 실패 예외 던짐
             throw new AppCardAuthenticationFailedException(transactionId);
         }
@@ -248,6 +275,14 @@ public CardPaymentApprovalResponseDto processPaymentApproval(AppCardPaymentReque
             transaction.updateTransactionStatus(TransactionStatus.FAILED);
             transactionRepository.save(transaction);
 
+            transactionLogRepository.save(TransactionLog.builder()
+                    .transaction(transaction)
+                    .message("지원하지 않는 카드사")
+                    .status(transaction.getTransactionStatus())
+                    .merchant(payment.getMerchant())
+                    .createdAt(LocalDateTime.now())
+                    .build());
+
             // 카드사 미지원 예외 던짐
             throw new UnsupportedIssuerException(transactionId, cardNumber);
         }
@@ -286,8 +321,16 @@ public CardPaymentApprovalResponseDto processPaymentApproval(AppCardPaymentReque
         );
         transactionRepository.save(transaction);
 
+        transactionLogRepository.save(TransactionLog.builder()
+                .transaction(transaction)
+                .message("카드사 승인 완료")
+                .status(transaction.getTransactionStatus())
+                .merchant(payment.getMerchant())
+                .createdAt(LocalDateTime.now())
+                .build());
+
         log.info("앱카드 서버에 결제 결과 전송 완료: txnId={}, status={}",
-            transactionId, payment.getPaymentStatus());
+                transactionId, payment.getPaymentStatus());
 
         return approvalResponse;
     }

src/main/java/com/fisa/pg/service/RefundService.java

@@ -5,17 +5,21 @@
 import com.fisa.pg.entity.payment.Payment;
 import com.fisa.pg.entity.payment.PaymentStatus;
 import com.fisa.pg.entity.transaction.Transaction;
+import com.fisa.pg.entity.transaction.TransactionLog;
 import com.fisa.pg.entity.transaction.TransactionStatus;
 import com.fisa.pg.feign.client.CardClient;
 import com.fisa.pg.feign.dto.card.request.RefundRequestToCardDto;
 import com.fisa.pg.feign.dto.card.response.RefundResponseFromCardDto;
 import com.fisa.pg.repository.PaymentRepository;
+import com.fisa.pg.repository.TransactionLogRepository;
 import com.fisa.pg.repository.TransactionRepository;
 import jakarta.transaction.Transactional;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.stereotype.Service;
 
+import java.time.LocalDateTime;
+
 /**
  * 환불 요청을 처리하는 서비스 클래스입니다.
  */
@@ -27,6 +31,7 @@ public class RefundService {
     private final PaymentRepository paymentRepository;
     private final TransactionRepository transactionRepository;
     private final CardClient cardClient;
+    private final TransactionLogRepository transactionLogRepository;
 
     /**
      * 원큐오더 서버로부터의 환불 요청을 처리하고 카드사에 환불 요청을 위임한 후,
@@ -67,8 +72,24 @@ public RefundResponseToOneQOrderDto refund(RefundRequestFromOneQOrderDto request
 
             // 아래 코드가 범인이다.
             transaction.updateTransactionStatus(TransactionStatus.CANCELLED);
+
+            transactionLogRepository.save(TransactionLog.builder()
+                    .transaction(transaction)
+                    .message("결제 환불 성공")
+                    .status(TransactionStatus.CANCELLED)
+                    .merchant(payment.getMerchant())
+                    .createdAt(LocalDateTime.now())
+                    .build());
         } else {
             transaction.updateTransactionStatus(TransactionStatus.REFUND_FAILED);
+
+            transactionLogRepository.save(TransactionLog.builder()
+                    .transaction(transaction)
+                    .message("결제 환불 실패")
+                    .status(TransactionStatus.REFUND_FAILED)
+                    .merchant(payment.getMerchant())
+                    .createdAt(LocalDateTime.now())
+                    .build());
         }
 
         // 5. 최종 응답 생성