api sample

src/main/java/com/kamco/cd/kamcoback/common/api/HelloApiController.java

@@ -1,4 +1,25 @@
 package com.kamco.cd.kamcoback.common.api;
 
+import com.kamco.cd.kamcoback.common.api.HelloDto.Res;
+import com.kamco.cd.kamcoback.common.service.HelloService;
+import lombok.RequiredArgsConstructor;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@RequiredArgsConstructor
+@RestController
+@RequestMapping("/api/hello")
 public class HelloApiController {
+
+    private final HelloService helloService;
+
+    @GetMapping
+    public HelloDto.Res hello(HelloDto.Req req) {
+        req.valid();
+
+        Res res = helloService.sayHello(req);
+
+        return res;
+    }
 }

src/main/java/com/kamco/cd/kamcoback/common/api/HelloDto.java

@@ -1,9 +1,36 @@
 package com.kamco.cd.kamcoback.common.api;
 
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.Setter;
+
 public class HelloDto {
 
-  public static class Req{
-    private String id;
-  }
+    @Getter
+    @Setter
+    @NoArgsConstructor
+    @AllArgsConstructor
+    public static class Req {
+        private String id;
 
+        public void valid() {
+            if (id == null) {
+                throw new IllegalArgumentException(id);
+            }
+        }
+    }
+
+    @Getter
+    public static class Res {
+        private String id;
+        private String name;
+
+        @Builder
+        public Res(String id, String name) {
+            this.id = id;
+            this.name = name;
+        }
+    }
 }

src/main/java/com/kamco/cd/kamcoback/common/service/BaseCoreService.java

@@ -0,0 +1,38 @@
+package com.kamco.cd.kamcoback.common.service;
+
+import org.springframework.data.domain.Page;
+
+/**
+ * Base Core Service Interface
+ *
+ * <p>CRUD operations를 정의하는 기본 서비스 인터페이스
+ *
+ * @param <T> Entity 타입
+ * @param <ID> Entity의 ID 타입
+ * @param <S> Search Request 타입
+ */
+public interface BaseCoreService<T, ID, S> {
+
+    /**
+     * ID로 엔티티를 삭제합니다.
+     *
+     * @param id 삭제할 엔티티의 ID
+     */
+    void remove(ID id);
+
+    /**
+     * ID로 단건 조회합니다.
+     *
+     * @param id 조회할 엔티티의 ID
+     * @return 조회된 엔티티
+     */
+    T getOneById(ID id);
+
+    /**
+     * 검색 조건과 페이징으로 조회합니다.
+     *
+     * @param searchReq 검색 조건
+     * @return 페이징 처리된 검색 결과
+     */
+    Page<T> search(S searchReq);
+}

src/main/java/com/kamco/cd/kamcoback/common/service/HelloService.java

@@ -1,4 +1,17 @@
 package com.kamco.cd.kamcoback.common.service;
 
+import com.kamco.cd.kamcoback.common.api.HelloDto;
+import java.util.UUID;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.stereotype.Service;
+
+@Slf4j
+@Service
 public class HelloService {
+
+    public HelloDto.Res sayHello(HelloDto.Req req) {
+        log.info("hello");
+        String name = UUID.randomUUID().toString();
+        return HelloDto.Res.builder().id(req.getId()).name(name).build();
+    }
 }

src/main/java/com/kamco/cd/kamcoback/common/utils/geometry/GeometryDeserializer.java

@@ -4,12 +4,11 @@ import com.fasterxml.jackson.core.JacksonException;
 import com.fasterxml.jackson.core.JsonParser;
 import com.fasterxml.jackson.databind.DeserializationContext;
 import com.fasterxml.jackson.databind.deser.std.StdDeserializer;
+import java.io.IOException;
 import org.locationtech.jts.geom.Geometry;
 import org.locationtech.jts.io.geojson.GeoJsonReader;
 import org.springframework.util.StringUtils;
 
-import java.io.IOException;
-
 public class GeometryDeserializer<T extends Geometry> extends StdDeserializer<T> {
 
     public GeometryDeserializer(Class<T> targetType) {
@@ -20,7 +19,7 @@ public class GeometryDeserializer<T extends Geometry> extends StdDeserializer<T>
     @SuppressWarnings("unchecked")
     @Override
     public T deserialize(JsonParser jsonParser, DeserializationContext deserializationContext)
-        throws IOException, JacksonException {
+            throws IOException, JacksonException {
         String json = jsonParser.readValueAsTree().toString();
 
         if (!StringUtils.hasText(json)) {

src/main/java/com/kamco/cd/kamcoback/common/utils/geometry/GeometrySerializer.java

@@ -3,11 +3,10 @@ package com.kamco.cd.kamcoback.common.utils.geometry;
 import com.fasterxml.jackson.core.JsonGenerator;
 import com.fasterxml.jackson.databind.SerializerProvider;
 import com.fasterxml.jackson.databind.ser.std.StdSerializer;
-import org.locationtech.jts.geom.Geometry;
-import org.locationtech.jts.io.geojson.GeoJsonWriter;
-
 import java.io.IOException;
 import java.util.Objects;
+import org.locationtech.jts.geom.Geometry;
+import org.locationtech.jts.io.geojson.GeoJsonWriter;
 
 public class GeometrySerializer<T extends Geometry> extends StdSerializer<T> {
 
@@ -17,8 +16,9 @@ public class GeometrySerializer<T extends Geometry> extends StdSerializer<T> {
     }
 
     @Override
-    public void serialize(T geometry, JsonGenerator jsonGenerator, SerializerProvider serializerProvider)
-        throws IOException {
+    public void serialize(
+            T geometry, JsonGenerator jsonGenerator, SerializerProvider serializerProvider)
+            throws IOException {
         if (Objects.nonNull(geometry)) {
             // default: 8자리 강제로 반올림시킴. 16자리로 늘려줌
             GeoJsonWriter writer = new GeoJsonWriter(16);