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import java.io.BufferedReader;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.Writer;
import com.amazonaws.AmazonClientException;
import com.amazonaws.AmazonServiceException;
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.CannedAccessControlList;
import com.amazonaws.services.s3.model.GetObjectRequest;
import com.amazonaws.services.s3.model.PutObjectRequest;
import com.amazonaws.services.s3.model.S3Object;
public class S3Sample {
public static void main(String[] args) throws IOException {
String AWS_BUCKETNAME = "your_bucketname";
String AWS_ACCESS_KEY = "your_AWS_ACCESS_KEY";
String AWS_SECRET_KEY = "your_ AWS_SECRET_KEY";
String file_path = "test/;"; // 폴더명
String file_name = "test.txt"; // 파일명
AWSCredentials credentials = new BasicAWSCredentials(AWS_ACCESS_KEY, AWS_SECRET_KEY);
AmazonS3 s3 = new AmazonS3Client(credentials);
try {
// 파일 업로드 부분 파일 이름과 경로를 동시에 넣어줌.
PutObjectRequest putObjectRequest = new PutObjectRequest(AWS_BUCKETNAME, file_path+file_name, createSampleFile());
putObjectRequest.setCannedAcl(CannedAccessControlList.PublicRead); // URL 접근시 권한 읽을수 있도록 설정.
s3.putObject(putObjectRequest);
System.out.println("Uploadinf OK");
// 파일 다운로드 다운로드 경로와 파일이름 동시 필요.
System.out.println("Downloading an object");
S3Object object = s3.getObject(new GetObjectRequest(AWS_BUCKETNAME, file_path+file_name));
System.out.println("Content-Type: " + object.getObjectMetadata().getContentType());
displayTextInputStream(object.getObjectContent());
} catch (AmazonServiceException ase) {
System.out.println("Caught an AmazonServiceException, which means your request made it "
+ "to Amazon S3, but was rejected with an error response for some reason.");
System.out.println("Error Message: " + ase.getMessage());
System.out.println("HTTP Status Code: " + ase.getStatusCode());
System.out.println("AWS Error Code: " + ase.getErrorCode());
System.out.println("Error Type: " + ase.getErrorType());
System.out.println("Request ID: " + ase.getRequestId());
} catch (AmazonClientException ace) {
System.out.println("Caught an AmazonClientException, which means the client encountered "
+ "a serious internal problem while trying to communicate with S3, "
+ "such as not being able to access the network.");
System.out.println("Error Message: " + ace.getMessage());
}
}
private static File createSampleFile() throws IOException {
File file = File.createTempFile("aws-java-sdk-", ".txt");
file.deleteOnExit();
Writer writer = new OutputStreamWriter(new FileOutputStream(file));
writer.write("파일테스트하기\n");
writer.close();
return file;
}
@SuppressWarnings("unused")
private static void displayTextInputStream(InputStream input) throws IOException {
BufferedReader reader = new BufferedReader(new InputStreamReader(input));
while (true) {
String line = reader.readLine();
if (line == null) break;
System.out.println(" " + line);
}
System.out.println();
}
}
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