java-code-snippets-32517ae.md

Java Code Snippets

You can use the following sample code snippets as a reference:

• Read VCAP_SERVICES

  Sample Code:

  @Value("${vcap.services.objectstore.credentials.access_key_id}")  
  String accessKeyId;  
  @Value("${vcap.services.objectstore.credentials.secret_access_key}")  
  String secretAccessKey;  
  @Value("${vcap.services.objectstore.credentials.bucket}")  
  String bucketName;
  @Value("${vcap.services.objectstore.credentials.host}")   
  String endPoint;
  @Value("${vcap.services.objectstore.credentials.region}")   
  String bucketRegion; 
    
  
  

• Get an Amazon S3 client

  Sample Code:

  //Using setEndPoint method
  AWSCredentials credentials = new BasicAWSCredentials(accessKeyId, secretAccessKey);
  AmazonS3 s3client = null;
  s3client = new AmazonS3Client(credentials);
  s3client.setEndPoint(endPoint);
  
  //Using region method
  AWSCredentials credentials = new BasicAWSCredentials(accessKeyId, secretAccessKey);
  AmazonS3 s3client = null;
  s3client = new AmazonS3Client(credentials);   
  s3client.setRegion(bucketRegion);   
  

• Upload an object

  Sample Code:

  s3client.putObject(new PutObjectRequest(bucketName, objectName, file));
  

• Download an object

  Sample Code:

  s3client.getObject(new GetObjectRequest(bucketName, objectName));
  
  

• Delete an object

  Sample Code:

  s3client.deleteObject(bucketName, objectName);