code refactoring with

src/main/java/kr/ajousw/myspringweb/controller/MyspringwebController.java

 package kr.ajousw.myspringweb.controller;
 
-import java.io.IOException;
 import java.util.List;
 
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;
-import org.springframework.web.client.RestTemplate;
-
-import com.fasterxml.jackson.databind.ObjectMapper;
 
 import jakarta.transaction.Transactional;
 import kr.ajousw.myspringweb.dto.FavoriteMusicRequestDto;
 import kr.ajousw.myspringweb.dto.MusicList;
 import kr.ajousw.myspringweb.entity.FavoriteMusic;
-import kr.ajousw.myspringweb.repository.FavoriteRepository;
+import kr.ajousw.myspringweb.service.MusicService;
 
 import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.web.bind.annotation.PostMapping;
@@ -26,65 +22,32 @@ import org.springframework.web.bind.annotation.RequestParam;
 @RestController
 public class MyspringwebController {
     @Autowired
-    FavoriteRepository albumsRepo;
+    MusicService service;
 
     @RequestMapping("/")
 	public String index() {
 		return "Greetings from Spring Boot!";
 	}
 
-    @GetMapping(value="/musicSearch/{term}")
-    public MusicList musicSearchByPath(@PathVariable String term){
-        String url = "https://itunes.apple.com/search?term=" + term + "&entity=album";
-        RestTemplate restTemplate = new RestTemplate();
-        try {
-            String response = restTemplate.getForObject(url, String.class);
-            ObjectMapper mapper = new ObjectMapper();
-            MusicList list = mapper.readValue(response, MusicList.class);
-            System.out.println(list.getResultCount());
-            return list;
-        } catch (IOException e) {
-            System.out.println(e.toString());
-            return null;
-        }
+    @GetMapping(value="/musicSearch/{name}")
+    public MusicList musicSearchByPath(@PathVariable String name){
+        return service.searchMusic(name);
     }
 
     @GetMapping(value="/musicSearch")
     public MusicList musicSearchByParam(@RequestParam(value="term") String name){
-        String url = "https://itunes.apple.com/search?term=" + name + "&entity=album";
-        RestTemplate restTemplate = new RestTemplate();
-        try {
-            String response = restTemplate.getForObject(url, String.class);
-            ObjectMapper mapper = new ObjectMapper();
-            MusicList list = mapper.readValue(response, MusicList.class);
-            System.out.println(list.getResultCount());
-            return list;
-        } catch (IOException e) {
-            System.out.println(e.toString());
-            return null;
-        }
+        return service.searchMusic(name);
     }
 
     @GetMapping(value="/likes")
     public List<FavoriteMusic> getLikes(){
-        try {
-            return albumsRepo.findAll();
-            } catch (Exception e) {
-            System.out.println(e.toString());
-            return null;
-            }
+        return service.getLikes();
     }
 
     @PostMapping(value="/likes")
     @Transactional
     public int postLikes(@RequestBody FavoriteMusicRequestDto favorite){
-        FavoriteMusic music = albumsRepo.save(favorite.toEntity());
-        if(music != null) {
-            return 1;
-        }
-        else {
-            return 0;
-        }
+        return service.saveFavorite(favorite);
     }
 }
 

src/main/java/kr/ajousw/myspringweb/dto/MusicList.java

@@ -3,7 +3,6 @@ package kr.ajousw.myspringweb.dto;
 import java.util.List;
 import java.util.Map;
 
-import kr.ajousw.myspringweb.entity.FavoriteMusic;
 import lombok.Getter;
 import lombok.Setter;
 import lombok.ToString;

src/main/java/kr/ajousw/myspringweb/service/MusicService.java

+package kr.ajousw.myspringweb.service;
+
+import java.io.IOException;
+import java.util.List;
+
+import org.springframework.stereotype.Service;
+import org.springframework.web.client.RestTemplate;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+
+import jakarta.transaction.Transactional;
+import kr.ajousw.myspringweb.dto.FavoriteMusicRequestDto;
+import kr.ajousw.myspringweb.dto.MusicList;
+import kr.ajousw.myspringweb.entity.FavoriteMusic;
+import kr.ajousw.myspringweb.repository.FavoriteRepository;
+import lombok.RequiredArgsConstructor;
+
+@Service
+@Transactional
+@RequiredArgsConstructor
+public class MusicService {
+    private final FavoriteRepository albumsRepo;
+    RestTemplate restTemplate = new RestTemplate();
+
+    public MusicList searchMusic(String name){
+        String url = "https://itunes.apple.com/search?term=" + name + "&entity=album";
+        RestTemplate restTemplate = new RestTemplate();
+        try {
+            String response = restTemplate.getForObject(url, String.class);
+            ObjectMapper mapper = new ObjectMapper();
+            MusicList list = mapper.readValue(response, MusicList.class);
+            System.out.println(list.getResultCount());
+            return list;
+        } catch (IOException e) {
+            System.out.println(e.toString());
+            return null;
+        } 
+    }
+
+    public List<FavoriteMusic> getLikes(){
+        try {
+            return albumsRepo.findAll();
+        } catch (Exception e) {
+            System.out.println(e.toString());
+            return null;
+        }
+    }
+
+    public int saveFavorite(FavoriteMusicRequestDto favorite){
+        FavoriteMusic music = albumsRepo.save(favorite.toEntity());
+        if(music != null) {
+            return 1;
+        }
+        else {
+            return 0;
+        }
+    }
+}