[AWS : Amazon Web Service] Java S3 사용

https://github.com/Woniper/JavaExample/tree/master/AWS-S3-JAVA

1. S3 설정

- S3 사용방법

- AWS SDK 다운로드 : http://aws.amazon.com/ko/sdkforjava/

- 라이브러리 추가(AWS SDK는 용량 초과로 위 url에서 다운받아야함.)

commons-logging-1.1.3.jar

httpclient-4.2.3.jar

httpcore-4.2.jar

jackson-annotations-2.4.1.jar

jackson-core-2.4.1.jar

jackson-databind-2.4.1.1.jar

joda-time-2.2.jar

2. S3 Access Key 생성

오른쪽 상단에 Security Credentials 선택

Access Keys 선택 > Create New Access Key

Show Access Key 선택하면 Access Key ID와 Secret Access Key가 생성된걸 볼 수 있다.

3. S3Util 구현

S3 Endpoint URL : http://docs.aws.amazon.com/general/latest/gr/rande.html#s3_region

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package com.woniper.aws;   import java.io.ByteArrayInputStream; import java.io.File; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.util.List;   import com.amazonaws.ClientConfiguration; import com.amazonaws.Protocol; import com.amazonaws.auth.AWSCredentials; import com.amazonaws.auth.BasicAWSCredentials; import com.amazonaws.services.s3.AmazonS3; import com.amazonaws.services.s3.AmazonS3Client; import com.amazonaws.services.s3.model.Bucket; import com.amazonaws.services.s3.model.GeneratePresignedUrlRequest; import com.amazonaws.services.s3.model.ObjectMetadata;   public class S3Util {           private String accessKey = "put your access Key";     private String secretKey = "put your secret Key";           private AmazonS3 conn;           public S3Util() {         AWSCredentials credentials = new BasicAWSCredentials(accessKey, secretKey);         ClientConfiguration clientConfig = new ClientConfiguration();         clientConfig.setProtocol(Protocol.HTTP);         this.conn = new AmazonS3Client(credentials, clientConfig);         conn.setEndpoint("s3-ap-northeast-1.amazonaws.com");     }           // Bucket List     public List<bucket> getBucketList() {         return conn.listBuckets();     }           // Bucket 생성      public Bucket createBucket(String bucketName) {         return conn.createBucket(bucketName);     }           // 폴더 생성 (폴더는 파일명 뒤에 "/"를 붙여야한다.)     public void createFolder(String bucketName, String folderName) {         conn.putObject(bucketName, folderName + "/", new ByteArrayInputStream(new byte[0]), new ObjectMetadata());     }           // 파일 업로드     public void fileUpload(String bucketName, File file) throws FileNotFoundException {         conn.putObject(bucketName, file.getName(), new FileInputStream(file), new ObjectMetadata());     }           // 파일 삭제     public void fileDelete(String bucketName, String fileName) {         conn.deleteObject(bucketName, fileName);     }           // 파일 URL     public String getFileURL(String bucketName, String fileName) {         return conn.generatePresignedUrl(new GeneratePresignedUrlRequest(bucketName, fileName)).toString();     }       } </bucket>

4. S3Util 사용

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package com.woniper.aws;   import java.io.File; import java.io.FileNotFoundException; import java.util.List;   import com.amazonaws.services.s3.model.Bucket;   public class MainAWS {       public static void main(String[] args) throws FileNotFoundException {           S3Util s3 = new S3Util();                   List<bucket> list = s3.getBucketList();                   // 첫번째 Bucket         String bucketName = list.get(0).getName().toString();         System.out.println("Bucket Name : " + bucketName);                   // Bucket 생성(대문자는 포함되면 안됨.)         for(int i = 0; i < 3; i++) {             s3.createBucket("wonier-test-bucket" + i);         }                   // 폴더 생성         for(int i = 0; i < 3; i++) {             s3.createFolder(bucketName, "woniper-test-folder" + i);         }                   // 파일 업로드         String fileName = "/Users/woniper/Downloads/aws-java-sdk-1.8.4.zip";         s3.fileUpload(bucketName, new File(fileName));         System.out.println(s3.getFileURL(bucketName, "aws-java-sdk-1.8.4.zip"));               }   } </bucket>

5. 결과 화면

생성된 Bucket

생성된 폴더와 업로드된 파일

출처 : https://blog.woniper.net/218?category=506090