добавил url, который позволяет скачивать все файлы из bucket

Author: a.osetckiy

pom.xml

@@ -42,6 +42,12 @@
 			<artifactId>aws-java-sdk</artifactId>
 			<version>1.11.133</version>
 		</dependency>
+
+		<dependency>
+			<groupId>commons-io</groupId>
+			<artifactId>commons-io</artifactId>
+			<version>2.4</version>
+		</dependency>
 	</dependencies>
 
 	<build>

src/main/java/com/example/bucket/controller/BucketController.java

@@ -33,4 +33,9 @@ public String uploadFile(@RequestPart(value = "file") MultipartFile file) {
     public String deleteFile(@RequestPart(value = "url") String fileUrl) {
         return this.amazonClient.deleteFileFromS3Bucket(fileUrl);
     }
+
+    @GetMapping("/downloadFiles")
+    public void downloadFiles() {
+        this.amazonClient.downloadAllS3Object();
+    }
 }

src/main/java/com/example/bucket/service/AmazonClient.java

@@ -5,6 +5,7 @@
 import com.amazonaws.services.s3.AmazonS3;
 import com.amazonaws.services.s3.AmazonS3Client;
 import com.amazonaws.services.s3.model.*;
+import org.apache.commons.io.FileUtils;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.stereotype.Service;
 import org.springframework.web.multipart.MultipartFile;
@@ -80,4 +81,18 @@ public List<S3ObjectSummary> listFilesTos3bucket() {
 
         return s3ObjectSummaries;
     }
+
+    public void downloadAllS3Object() {
+        try {
+            List<S3ObjectSummary> s3ObjectSummaries = listFilesTos3bucket();
+            for (S3ObjectSummary s3ObjectSummary : s3ObjectSummaries) {
+                S3Object object = s3client.getObject(s3ObjectSummary.getBucketName(),
+                        s3ObjectSummary.getKey());
+                File file = new File(s3ObjectSummary.getKey());
+                FileUtils.copyInputStreamToFile(object.getObjectContent(), file);
+            }
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
 }