1+ package com .ivory .ivory .ocr ;
2+
3+ import com .fasterxml .jackson .databind .ObjectMapper ;
4+ import com .fasterxml .jackson .databind .node .ArrayNode ;
5+ import com .fasterxml .jackson .databind .node .ObjectNode ;
6+ import java .io .IOException ;
7+ import java .net .HttpURLConnection ;
8+ import java .net .URL ;
9+ import java .util .Base64 ;
10+ import java .util .UUID ;
11+ import lombok .RequiredArgsConstructor ;
12+ import lombok .extern .slf4j .Slf4j ;
13+ import org .springframework .stereotype .Service ;
14+ import org .springframework .web .multipart .MultipartFile ;
15+
16+ @ Service
17+ @ RequiredArgsConstructor
18+ @ Slf4j
19+ public class MedicalCertificateOcrService {
20+ public String processOcr (MultipartFile file , String apiUrl , String secretKey ) throws IOException {
21+ // 1. JSON 메시지 생성
22+ String jsonMessage = createJsonMessage (file );
23+
24+ // 2. HTTP 연결 설정
25+ HttpURLConnection connection = (HttpURLConnection ) new URL (apiUrl ).openConnection ();
26+ connection .setRequestMethod ("POST" );
27+ connection .setDoOutput (true );
28+ connection .setDoInput (true );
29+ connection .setUseCaches (false );
30+ connection .setRequestProperty ("Content-Type" , "application/json; charset=UTF-8" );
31+ connection .setRequestProperty ("x-incizorlens-api-key" , secretKey );
32+ connection .setReadTimeout (30000 );
33+
34+ // 3. JSON 데이터 전송
35+ try (var outputStream = connection .getOutputStream ()) {
36+ outputStream .write (jsonMessage .getBytes ("UTF-8" ));
37+ outputStream .flush ();
38+ }
39+
40+ // 4. 응답 처리
41+ int responseCode = connection .getResponseCode ();
42+ System .out .println ("responseCode = " + responseCode );
43+ System .out .println ("responseMessage = " + connection .getResponseMessage ());
44+ if (responseCode != HttpURLConnection .HTTP_OK ) {
45+ throw new IOException ("OCR 요청 실패: 상태 코드 = " + responseCode + connection .getResponseMessage ());
46+ }
47+
48+ // 5. 응답 데이터 읽기
49+ return new String (connection .getInputStream ().readAllBytes (), "UTF-8" );
50+ }
51+
52+ private String createJsonMessage (MultipartFile file ) throws IOException {
53+ ObjectMapper objectMapper = new ObjectMapper ();
54+
55+ // JSON 메시지 생성
56+ ObjectNode root = objectMapper .createObjectNode ();
57+ root .put ("version" , "V2" );
58+ root .put ("requestId" , UUID .randomUUID ().toString ());
59+ root .put ("timestamp" , System .currentTimeMillis ());
60+
61+ // 이미지 정보 추가
62+ ArrayNode images = objectMapper .createArrayNode ();
63+ ObjectNode image = objectMapper .createObjectNode ();
64+ image .put ("format" , "jpg" );
65+ image .put ("name" , file .getName ());
66+
67+ // 파일 데이터 Base64 인코딩
68+ String base64File = Base64 .getEncoder ().encodeToString (file .getBytes ());
69+ image .put ("data" , base64File ); // Base64 데이터를 JSON에 추가
70+ images .add (image );
71+
72+ root .set ("images" , images );
73+
74+ return objectMapper .writeValueAsString (root );
75+ }
76+ }
0 commit comments