Feat : DIG-99 Aws S3 이미지 추가 삭제 설정

### S3 버켓에 이미 삭제, 업로드 구현

build.gradle

@@ -55,6 +55,10 @@ dependencies {
 	asciidoctorExt 'org.springframework.restdocs:spring-restdocs-asciidoctor'
 	testImplementation 'org.springframework.restdocs:spring-restdocs-mockmvc'
 
+	// 필요한 스프링 클라우드 AWS 스타터 추가
+	implementation platform('software.amazon.awssdk:bom:2.20.56')
+	implementation 'software.amazon.awssdk:s3'
+
 }
 
 clean {

src/main/java/com/ogjg/daitgym/config/aws/s3/S3Config.java

@@ -0,0 +1,30 @@
+package com.ogjg.daitgym.config.aws.s3;
+
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import software.amazon.awssdk.auth.credentials.AwsBasicCredentials;
+import software.amazon.awssdk.auth.credentials.StaticCredentialsProvider;
+import software.amazon.awssdk.regions.Region;
+import software.amazon.awssdk.services.s3.S3Client;
+
+@Configuration
+public class S3Config {
+
+    @Value("${cloud.aws.credentials.access-key}")
+    private String accessKey;
+    @Value("${cloud.aws.credentials.secret-key}")
+    private String secretKey;
+    @Value("${cloud.aws.region.static}")
+    private String region;
+
+    @Bean
+    public S3Client s3Client() {
+        AwsBasicCredentials awsCredentials = AwsBasicCredentials.create(accessKey, secretKey);
+
+        return S3Client.builder()
+                .region(Region.of(region))
+                .credentialsProvider(StaticCredentialsProvider.create(awsCredentials))
+                .build();
+    }
+}

src/main/java/com/ogjg/daitgym/s3/repository/S3Repository.java

@@ -0,0 +1,80 @@
+package com.ogjg.daitgym.s3.repository;
+
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.stereotype.Repository;
+import org.springframework.web.multipart.MultipartFile;
+import software.amazon.awssdk.core.sync.RequestBody;
+import software.amazon.awssdk.services.s3.S3Client;
+import software.amazon.awssdk.services.s3.model.DeleteObjectRequest;
+import software.amazon.awssdk.services.s3.model.GetUrlRequest;
+import software.amazon.awssdk.services.s3.model.PutObjectRequest;
+
+import java.net.URL;
+import java.net.URLDecoder;
+import java.nio.charset.StandardCharsets;
+import java.util.UUID;
+
+@Slf4j
+@Repository
+@RequiredArgsConstructor
+public class S3Repository {
+
+    @Value("${cloud.aws.credentials.bucket-name}")
+    private String bucketName;
+    private final S3Client s3Client;
+
+
+    public String uploadImageToS3(MultipartFile file) {
+        String uploadUrl = null;
+        try {
+            String uploadFilename = UUID.randomUUID() + "_" + file.getOriginalFilename();
+
+            PutObjectRequest putObjectRequest = PutObjectRequest.builder()
+                    .bucket(bucketName)
+                    .key(uploadFilename)
+                    .build();
+
+            s3Client.putObject(
+                    putObjectRequest,
+                    RequestBody.fromInputStream(
+                            file.getInputStream(), file.getSize()
+                    )
+            );
+
+            uploadUrl = getObjectUrl(uploadFilename);
+
+        } catch (Exception e) {
+            log.error(e.getMessage());
+        }
+        return uploadUrl;
+    }
+
+    private String getObjectUrl(String fileName) {
+        return s3Client.utilities()
+                .getUrl(GetUrlRequest
+                        .builder()
+                        .bucket(bucketName)
+                        .key(fileName)
+                        .build())
+                .toExternalForm();
+    }
+
+    public void deleteImageFromS3(String fileUrl) {
+        try {
+            URL url = new URL(fileUrl);
+            String key = url.getPath().substring(1);
+            String filename = URLDecoder.decode(key, StandardCharsets.UTF_8);
+
+            DeleteObjectRequest deleteObjectRequest = DeleteObjectRequest.builder()
+                    .bucket(bucketName)
+                    .key(filename)
+                    .build();
+
+            s3Client.deleteObject(deleteObjectRequest);
+        } catch (Exception e) {
+            log.error(e.getMessage());
+        }
+    }
+}