Merge branch 'dev'

src/main/java/com/sb/web/account/controller/OcrController.java

@@ -0,0 +1,40 @@
+package com.sb.web.account.controller;
+
+import com.sb.web.account.service.VisionOcrService;
+import com.sb.web.auth.dto.SessionUser;
+import com.sb.web.auth.web.AuthInterceptor;
+import com.sb.web.common.exception.ApiException;
+import lombok.RequiredArgsConstructor;
+import org.springframework.http.HttpStatus;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestAttribute;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.multipart.MultipartFile;
+
+import java.io.IOException;
+import java.util.Map;
+
+/**
+ * 영수증 OCR API (/api/account/ocr/** — 로그인 필요).
+ * 이미지 업로드 → Google Vision 으로 텍스트 추출 → 프론트에서 금액·날짜·상호 파싱.
+ */
+@RestController
+@RequestMapping("/api/account/ocr")
+@RequiredArgsConstructor
+public class OcrController {
+
+    private final VisionOcrService visionOcrService;
+
+    @PostMapping("/receipt")
+    public Map<String, String> receipt(
+            @RequestParam("image") MultipartFile image,
+            @RequestAttribute(AuthInterceptor.CURRENT_MEMBER) SessionUser current) throws IOException {
+        if (image == null || image.isEmpty()) {
+            throw new ApiException(HttpStatus.BAD_REQUEST, "영수증 이미지를 첨부하세요.");
+        }
+        String text = visionOcrService.recognize(image.getBytes());
+        return Map.of("text", text);
+    }
+}

src/main/java/com/sb/web/account/service/VisionOcrService.java

@@ -0,0 +1,82 @@
+package com.sb.web.account.service;
+
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.sb.web.common.exception.ApiException;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.MediaType;
+import org.springframework.stereotype.Service;
+import org.springframework.web.client.RestClient;
+
+import java.util.Base64;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * Google Cloud Vision 영수증 OCR. 이미지(byte) → 전체 텍스트.
+ * API 키는 환경변수(GOOGLE_VISION_API_KEY)로만 주입하며, 프론트엔드엔 노출하지 않는다.
+ */
+@Slf4j
+@Service
+public class VisionOcrService {
+
+    private static final String ENDPOINT = "https://vision.googleapis.com/v1/images:annotate";
+
+    private final RestClient restClient = RestClient.builder().build();
+    private final ObjectMapper objectMapper;
+    private final String apiKey;
+
+    public VisionOcrService(ObjectMapper objectMapper,
+                            @Value("${google.vision.api-key:}") String apiKey) {
+        this.objectMapper = objectMapper;
+        this.apiKey = apiKey;
+    }
+
+    public boolean isEnabled() {
+        return apiKey != null && !apiKey.isBlank();
+    }
+
+    /** 영수증 이미지에서 전체 텍스트 추출 */
+    public String recognize(byte[] image) {
+        if (!isEnabled()) {
+            throw new ApiException(HttpStatus.SERVICE_UNAVAILABLE, "영수증 OCR이 설정되지 않았습니다.");
+        }
+        String content = Base64.getEncoder().encodeToString(image);
+        Map<String, Object> body = Map.of(
+                "requests", List.of(Map.of(
+                        "image", Map.of("content", content),
+                        "features", List.of(Map.of("type", "DOCUMENT_TEXT_DETECTION")),
+                        "imageContext", Map.of("languageHints", List.of("ko"))
+                ))
+        );
+
+        String responseJson;
+        try {
+            responseJson = restClient.post()
+                    .uri(ENDPOINT + "?key=" + apiKey)
+                    .contentType(MediaType.APPLICATION_JSON)
+                    .body(body)
+                    .retrieve()
+                    .body(String.class);
+        } catch (Exception e) {
+            log.warn("Vision OCR 호출 실패: {}", e.getMessage());
+            throw new ApiException(HttpStatus.BAD_GATEWAY, "영수증 인식 서버 호출에 실패했습니다.");
+        }
+
+        try {
+            JsonNode r0 = objectMapper.readTree(responseJson).path("responses").path(0);
+            if (r0.has("error")) {
+                log.warn("Vision OCR 오류 응답: {}", r0.path("error").path("message").asText());
+                throw new ApiException(HttpStatus.BAD_GATEWAY, "영수증 인식에 실패했습니다.");
+            }
+            return r0.path("fullTextAnnotation").path("text").asText("");
+        } catch (ApiException e) {
+            throw e;
+        } catch (Exception e) {
+            log.warn("Vision OCR 응답 파싱 실패: {}", e.getMessage());
+            throw new ApiException(HttpStatus.BAD_GATEWAY, "영수증 인식 결과를 처리하지 못했습니다.");
+        }
+    }
+}

src/main/resources/application.yml

@@ -13,6 +13,12 @@ spring:
   application:
     name: sb_bt
 
+  # 영수증 OCR 이미지 업로드 크기 (프론트에서 축소해 보내지만 여유 확보)
+  servlet:
+    multipart:
+      max-file-size: 10MB
+      max-request-size: 12MB
+
   # ===== SQL 초기화 ===== 기동 시 member 테이블 자동 생성(IF NOT EXISTS 라 멱등)
   sql:
     init:
@@ -56,6 +62,12 @@ mybatis:
     default-fetch-size: 100
     default-statement-timeout: 30
 
+# ===== Google Cloud Vision (영수증 OCR) =====
+# 키는 서버 /opt/sb-backend/.env 에 GOOGLE_VISION_API_KEY=... 로 주입 (git 미추적). 미설정이면 OCR 비활성.
+google:
+  vision:
+    api-key: ${GOOGLE_VISION_API_KEY:}
+
 # ===== Logging =====
 logging:
   level: