[feat]#29 실시간 검색 레디스 캐싱

build.gradle

@@ -30,6 +30,7 @@ dependencies {
 	implementation 'org.springframework.boot:spring-boot-starter-validation'
 	implementation 'org.springframework.boot:spring-boot-starter-webflux'
 	implementation 'com.google.genai:google-genai:1.6.0'
+	implementation 'org.springframework.boot:spring-boot-starter-data-redis'
 	compileOnly 'org.projectlombok:lombok'
 	annotationProcessor 'org.projectlombok:lombok'
 	testImplementation 'org.springframework.boot:spring-boot-starter-test'

src/main/java/com/kernellabs/kernellabs/application/PolicyService.java

@@ -0,0 +1,41 @@
+package com.kernellabs.kernellabs.application;
+
+import org.springframework.stereotype.Service;
+
+import com.kernellabs.kernellabs.global.util.RedisUtil;
+import com.kernellabs.kernellabs.infrastructure.external.GeminiApiClient;
+import com.kernellabs.kernellabs.infrastructure.external.GeminiSearchClient;
+import com.kernellabs.kernellabs.presentation.dto.response.PolicyResponse;
+
+import lombok.RequiredArgsConstructor;
+
+@Service
+@RequiredArgsConstructor
+public class PolicyService {
+
+	private final String POLICY_REDIS_KEY = "policy";
+	private final RedisUtil redisUtil;
+	private final GeminiSearchClient geminiSearchClient;
+	private final String prompt = """
+      의성군으로 이주하려는 사람들을 위한 최신 혜택 정보를 알려줘.
+      주거, 교육, 귀농귀촌, 복지, 창업, 일자리 지원금, 정착금 등 모든 종류의 이주 및 정착 혜택을 포함해줘.
+      각 혜택별로 지원 조건, 신청 방법, 담당 부서 또는 관련 웹사이트 링크 같은 상세 정보도 알려줘.
+      정보를 대주제와 소주제로 나눠서 정리해줘.
+      각 소주제 아래에 자세한 설명을 추가하고, 관련 링크가 있다면 URL 주소를 명확히 포함해줘.
+      각 항목은 줄 바꿈(\n)을 사용해서 구분해줘.
+      다른 지역 정보나 일반적인 내용은 제외하고, 오직 의성군 관련 혜택만 다뤄줘.
+      """;
+
+	public PolicyResponse getCurrentPolicy() {
+		String result = "";
+		if(redisUtil.existData(POLICY_REDIS_KEY)){
+			result = redisUtil.getData(POLICY_REDIS_KEY);
+		}
+		else{
+			result = geminiSearchClient.generateAnswer(prompt);
+			redisUtil.setDataExpire(POLICY_REDIS_KEY, result, 10800);
+		}
+		return PolicyResponse.builder().policy(result).build();
+
+	}
+}

src/main/java/com/kernellabs/kernellabs/global/config/RedisConfig.java

@@ -0,0 +1,41 @@
+package com.kernellabs.kernellabs.global.config;
+
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.data.redis.connection.RedisConnectionFactory;
+import org.springframework.data.redis.connection.RedisStandaloneConfiguration;
+import org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory;
+import org.springframework.data.redis.core.RedisTemplate;
+import org.springframework.data.redis.serializer.StringRedisSerializer;
+
+@Configuration
+public class RedisConfig {
+
+	@Value("${spring.data.redis.host}")
+	private String host;
+
+	@Value("${spring.data.redis.port}")
+	private int port;
+
+	@Value("${spring.data.redis.password}")
+	private String password;
+
+	@Bean
+	public RedisConnectionFactory redisConnectionFactory() {
+		RedisStandaloneConfiguration redisStandaloneConfiguration = new RedisStandaloneConfiguration(host, port);
+		redisStandaloneConfiguration.setHostName(host);
+		redisStandaloneConfiguration.setPort(port);
+		redisStandaloneConfiguration.setPassword(password);
+		return new LettuceConnectionFactory(redisStandaloneConfiguration);
+	}
+
+	@Bean
+	public RedisTemplate<String, Object> redisTemplate() {
+		RedisTemplate<String, Object> template = new RedisTemplate<>();
+		template.setConnectionFactory(redisConnectionFactory());
+		template.setKeySerializer(new StringRedisSerializer());
+		template.setValueSerializer(new StringRedisSerializer());
+		return template;
+	}
+}

src/main/java/com/kernellabs/kernellabs/global/util/RedisUtil.java

@@ -0,0 +1,35 @@
+package com.kernellabs.kernellabs.global.util;
+
+import java.time.Duration;
+
+import org.springframework.data.redis.core.StringRedisTemplate;
+import org.springframework.data.redis.core.ValueOperations;
+import org.springframework.stereotype.Service;
+
+import lombok.RequiredArgsConstructor;
+
+@Service
+@RequiredArgsConstructor
+public class RedisUtil {
+
+	private final StringRedisTemplate redisTemplate;
+
+	public String getData(String key) {
+		ValueOperations<String, String> valueOperations = redisTemplate.opsForValue();
+		return valueOperations.get(key);
+	}
+
+	public boolean existData(String key) {
+		return Boolean.TRUE.equals(redisTemplate.hasKey(key));
+	}
+
+	public void setDataExpire(String key, String value, long duration) {
+		ValueOperations<String, String> valueOperations = redisTemplate.opsForValue();
+		Duration expireDuration = Duration.ofSeconds(duration);
+		valueOperations.set(key, value, expireDuration);
+	}
+
+	public void deleteData(String key) {
+		redisTemplate.delete(key);
+	}
+}

src/main/java/com/kernellabs/kernellabs/application/GeminiService.java → src/main/java/com/kernellabs/kernellabs/infrastructure/external/GeminiSearchClient.java

@@ -1,4 +1,4 @@
-package com.kernellabs.kernellabs.application;
+package com.kernellabs.kernellabs.infrastructure.external;
 
 import autovalue.shaded.com.google.common.collect.ImmutableList;
 import com.google.genai.Client;
@@ -10,13 +10,13 @@
 import org.springframework.stereotype.Service;
 
 @Service
-public class GeminiService {
+public class GeminiSearchClient {
 
     private final Client client;
     private final Tool googleSearchTool;
     private final String modelName;
 
-    public GeminiService(
+    public GeminiSearchClient(
         @Value("${gemini.api.key}") String apiKey,
         @Value("${gemini.model:gemini-2.5-flash}") String modelName
     ) {

src/main/java/com/kernellabs/kernellabs/presentation/controller/GeminiController.java

@@ -1,6 +1,6 @@
 package com.kernellabs.kernellabs.presentation.controller;
 
-import com.kernellabs.kernellabs.application.GeminiService;
+import com.kernellabs.kernellabs.infrastructure.external.GeminiSearchClient;
 import jakarta.validation.Valid;
 import lombok.AllArgsConstructor;
 import lombok.Data;
@@ -15,11 +15,11 @@
 @RequestMapping("/api/genie")
 @AllArgsConstructor
 public class GeminiController {
-    private final GeminiService geminiService;
+    private final GeminiSearchClient geminiSearchClient;
 
     @PostMapping("/chat")
     public ResponseEntity<ChatResponse> chat(@Valid @RequestBody ChatRequest req) {
-        String answer = geminiService.generateAnswer(req.getPrompt());
+        String answer = geminiSearchClient.generateAnswer(req.getPrompt());
         return ResponseEntity.ok(new ChatResponse(answer));
     }
 

src/main/java/com/kernellabs/kernellabs/presentation/controller/PolicyController.java

@@ -0,0 +1,27 @@
+package com.kernellabs.kernellabs.presentation.controller;
+
+import java.util.List;
+
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import com.kernellabs.kernellabs.application.PolicyService;
+import com.kernellabs.kernellabs.global.common.ApiResponse;
+import com.kernellabs.kernellabs.presentation.dto.response.PolicyResponse;
+
+import lombok.RequiredArgsConstructor;
+
+@RestController
+@RequestMapping("/policies")
+@RequiredArgsConstructor
+public class PolicyController {
+	private final PolicyService policyService;
+
+	@GetMapping("")
+	public ResponseEntity<ApiResponse<PolicyResponse>> getCurrentPolicy() {
+		PolicyResponse policyResponse = policyService.getCurrentPolicy();
+		return ResponseEntity.ok(ApiResponse.success(policyResponse));
+	}
+}

src/main/java/com/kernellabs/kernellabs/presentation/dto/response/PolicyResponse.java

@@ -0,0 +1,10 @@
+package com.kernellabs.kernellabs.presentation.dto.response;
+
+import lombok.Builder;
+import lombok.Getter;
+
+@Getter
+@Builder
+public class PolicyResponse {
+	private String policy;
+}

src/main/resources/application.yml

@@ -15,6 +15,12 @@ spring:
     properties:
       hibernate:
         format_sql: true
+
+  data:
+    redis:
+      host: ${REDIS_HOST}
+      password: ${REDIS_PASSWORD}
+      port: 6379
 logging:
   level:
     root: INFO              # 전체 로그 최소 INFO 이상 기록 :contentReference[oaicite:0]{index=0}