OBP 수수료 연동시 에러 메세지 개선

src/main/java/com/eactive/apim/portal/apps/commission/controller/CommissionController.java

@@ -64,6 +64,10 @@ public class CommissionController {
                 String obmUrl = portalPropertyService.getPortalPropertiesAsMap("Portal").getOrDefault("obp.obm.url", "");
                 String url = obmUrl + Constants.COMMISSION_PRINT_URL;
                 String result = externalService.getResponseHttpPost(url, toJson(search));
+                if (StringUtils.isEmpty(result)) {
+                    model.addAttribute("error", "외부 서버 연결에 실패하였습니다.");
+                    return "apps/commission/commissionPrint";
+                }
                 HashMap<String, Object> returnObj = new ObjectMapper().readValue(result, HashMap.class);
 
                 if (!StringUtils.isEmpty(returnObj.get("error"))) {
@@ -76,6 +80,10 @@ public class CommissionController {
                     log.debug("Found Together : " + search.getPartnerCode());
                     search.setPartnerCode("000002-02");
                     String togetherResult = externalService.getResponseHttpPost(url, toJson(search));
+                    if (StringUtils.isEmpty(togetherResult)) {
+                        model.addAttribute("error", "외부 서버 연결에 실패하였습니다.");
+                        return "apps/commission/commissionPrint";
+                    }
 
                     HashMap togetherLendingReturnObj = new ObjectMapper().readValue(togetherResult, HashMap.class);
                     log.debug("togetherLendingReturnObj : " + togetherLendingReturnObj.toString());
@@ -118,6 +126,9 @@ public class CommissionController {
                 String obmUrl = portalPropertyService.getPortalPropertiesAsMap("Portal").getOrDefault("obp.obm.url", "");
                 String url = obmUrl + Constants.COMMISSION_URL;
                 String result = externalService.getResponseHttpPost(url, toJson(search));
+                if (StringUtils.isEmpty(result)) {
+                    return ErrorUtil.create("fail.commission.serverError", "외부 서버 연결에 실패하였습니다.");
+                }
                 HashMap<String, Object> returnObj = new ObjectMapper().readValue(result, HashMap.class);
                 if (!StringUtils.isEmpty(returnObj.get("error"))) {
                     HashMap<String, Object> error = (HashMap) returnObj.get("error");
@@ -128,6 +139,9 @@ public class CommissionController {
                     log.debug("Found Together : " + search.getPartnerCode());
                     search.setPartnerCode("000002-02");
                     String togetherResult = externalService.getResponseHttpPost(url, toJson(search));
+                    if (StringUtils.isEmpty(togetherResult)) {
+                        return ErrorUtil.create("fail.commission.serverError", "외부 서버 연결에 실패하였습니다.");
+                    }
 
                     HashMap<String, Object> togetherLendingReturnObj = new ObjectMapper().readValue(togetherResult, HashMap.class);
                     log.debug("togetherLendingReturnObj : " + togetherLendingReturnObj.toString());

src/main/java/com/eactive/apim/portal/apps/commission/service/ExternalService.java

@@ -13,6 +13,7 @@ import org.springframework.http.MediaType;
 import org.springframework.http.ResponseEntity;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
+import org.springframework.web.client.HttpStatusCodeException;
 import org.springframework.web.client.RestClientException;
 import org.springframework.web.client.RestTemplate;
 
@@ -60,6 +61,14 @@ public class ExternalService {
             // 응답 본문 반환
             return response.getBody();
 
+        } catch (HttpStatusCodeException e) {
+            // 4xx, 5xx 에러더라도 응답 본문이 있으면 반환 (에러 메시지 포함)
+            String responseBody = e.getResponseBodyAsString();
+            log.warn("HTTP error from external API: url={}, status={}, body={}", url, e.getStatusCode(), responseBody);
+            if (responseBody != null && !responseBody.isEmpty()) {
+                return responseBody;
+            }
+            return null;
         } catch (RestClientException e) {
             log.error("Failed to call external API: url={}, error={}", url, e.getMessage(), e);
             return null;