diff --git "a/5\354\243\274\354\260\250 Server S-Day \352\263\274\354\240\234/S3Controller.java" "b/5\354\243\274\354\260\250 Server S-Day \352\263\274\354\240\234/S3Controller.java"
index 1187e15..bca173a 100644
--- "a/5\354\243\274\354\260\250 Server S-Day \352\263\274\354\240\234/S3Controller.java"	
+++ "b/5\354\243\274\354\260\250 Server S-Day \352\263\274\354\240\234/S3Controller.java"	
@@ -1,11 +1,13 @@
+
 package ServerStudy5Cloud.ServerStudy5Cloud.Controller;
 
 import com.amazonaws.services.s3.AmazonS3;
 import com.amazonaws.services.s3.model.CannedAccessControlList;
-import com.amazonaws.services.s3.model.ListObjectsV2Result;
+import com.amazonaws.services.s3.model.ObjectListing;
+import com.amazonaws.services.s3.model.ObjectMetadata;
 import com.amazonaws.services.s3.model.S3ObjectSummary;
 import lombok.RequiredArgsConstructor;
-import lombok.extern.slf4j.Slf4j;
+
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.stereotype.Controller;
 import org.springframework.ui.Model;
@@ -14,6 +16,7 @@
 import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.multipart.MultipartFile;
 
+
 import java.io.File;
 import java.io.IOException;
 import java.net.URL;
@@ -23,7 +26,6 @@
 
 @Controller
 @RequiredArgsConstructor
-@Slf4j
 public class S3Controller {
 
     private final AmazonS3 amazonS3;
@@ -34,27 +36,51 @@ public class S3Controller {
     @GetMapping("/")
     public String listFiles(Model model) {
         //getUrl로 객체 URL 가져온 후, List<String>에 넣어 index.html에 반환하기
-        List<String> files = new ArrayList<>();
 
-        ListObjectsV2Result result = amazonS3.listObjectsV2(bucketName);
-        List<S3ObjectSummary> objects = result.getObjectSummaries();
+        //업로드할 URL 파일 목록을 저장할 리스트 생성
+        List<String> fileUrls = new ArrayList<>();
+
+        //S3 내의 객체 목록 가져오기
+        ObjectListing objectListing = amazonS3.listObjects(bucketName);
+        List<S3ObjectSummary> objectSummaries = objectListing.getObjectSummaries();
 
-        for(S3ObjectSummary os : objects){
-            files.add(amazonS3.getUrl(bucketName, os.getKey()).toString());
-            //log.info("{}",files.get(files.size()-1));
+        // 객체 URL 가져와서 리스트에 추가
+        for (S3ObjectSummary objectSummary : objectSummaries) {
+            String fileUrl = amazonS3.getUrl(bucketName, objectSummary.getKey()).toString();
+            fileUrls.add(fileUrl);
         }
 
-        model.addAttribute("fileUrls", files);
+        // 모델에 URL 리스트 추가 
+        model.addAttribute("fileUrls", fileUrls);
+
         return "index";
     }
 
+
+
     @PostMapping("/upload")
-    public String uploadFile(@RequestParam("file") MultipartFile file) throws IOException {
+    public String uploadFile(@RequestParam("file") MultipartFile file) throws IOException{
 
         //putObject와 setObjectAcl로 이미지 업로드하고 ACL 퍼블릭으로 만들기
-        amazonS3.putObject(bucketName, file.getOriginalFilename(), file.getInputStream(), null);
-        amazonS3.setObjectAcl(bucketName,file.getOriginalFilename(), CannedAccessControlList.PublicRead);
+        //파일 이름가져오기
+        String originalFilename = file.getOriginalFilename();
+
+        //메타데이터 설정
+        ObjectMetadata metadata = new ObjectMetadata();
+        metadata.setContentLength(file.getSize());
+        metadata.setContentType(file.getContentType());
+
+        // putObject로 s3에 파일 업로드
+        amazonS3.putObject(bucketName, originalFilename, file.getInputStream(),metadata);
+
+        //업로드한 객체에 ACL퍼블릭 설정
+        amazonS3.setObjectAcl(bucketName, originalFilename, CannedAccessControlList.PublicRead);
+
         return "redirect:/";
 
+
     }
-}
\ No newline at end of file
+}
+
+//https://drive.google.com/file/d/1o9uRjxExZHYJOCKX6aTS8y8KKc-vic0d/view?usp=sharing
+