[KC-108] resttemplate 설정 변경

src/main/java/com/kamco/cd/kamcoback/config/resttemplate/RestTemplateConfig.java

@@ -1,21 +1,24 @@
 package com.kamco.cd.kamcoback.config.resttemplate;
 
-import java.time.Duration;
+import java.net.Proxy;
-import java.util.List;
+import lombok.extern.log4j.Log4j2;
 import org.springframework.boot.web.client.RestTemplateBuilder;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
+import org.springframework.http.client.SimpleClientHttpRequestFactory;
 import org.springframework.web.client.RestTemplate;
 
+@Log4j2
 @Configuration
 public class RestTemplateConfig {
 
   @Bean
   public RestTemplate restTemplate(RestTemplateBuilder builder) {
-    return builder
+    SimpleClientHttpRequestFactory f = new SimpleClientHttpRequestFactory();
-        .connectTimeout(Duration.ofSeconds(2))
+    f.setProxy(Proxy.NO_PROXY); // 시스템/환경 프록시 무시
-        .readTimeout(Duration.ofSeconds(3))
+    f.setConnectTimeout(2000);
-        .additionalInterceptors(List.of(new RetryInterceptor()))
+    f.setReadTimeout(3000);
-        .build();
+
+    return builder.requestFactory(() -> f).additionalInterceptors(new RetryInterceptor()).build();
   }
 }

src/main/java/com/kamco/cd/kamcoback/inference/service/InferenceResultService.java

@@ -215,6 +215,7 @@ public class InferenceResultService {
 
     HttpHeaders headers = new HttpHeaders();
     headers.setContentType(MediaType.APPLICATION_JSON);
+    headers.setAccept(List.of(MediaType.APPLICATION_JSON));
 
     ExternalCallResult result =
         externalHttpClient.call(inferenceUrl, HttpMethod.POST, dto, headers);