Charles Lo 技術分享備忘錄: 11月 2016

2016年11月24日星期四

[Android][AWS] How to iterate all AWS S3 bucket access right 如何列舉 AWS S3 的所有 bucket

AWSCredentials creden = new BasicAWSCredentials("AKIAIIZCDEMXYJP5G3RA", "oBy8PZKgxAMKxw9sEhmvjfZ0seHNvE2SBLgyWN8i");
AmazonS3Client s3Client = new AmazonS3Client(creden);
List<Bucket> buckets = s3Client.listBuckets();
for (Bucket bucket : buckets) {
// Log.d("charles", bucket.getName());
try {
ListObjectsRequest lor = new ListObjectsRequest()
.withBucketName(bucket.getName());
ObjectListing objectListing = s3Client.listObjects(lor);
for (S3ObjectSummary summary: objectListing.getObjectSummaries()) {
// Log.d("charles", summary.getKey());
}
Log.d("charles", bucket.getName() + " : granted");
} catch (AmazonS3Exception e) {
Log.d("charles", bucket.getName() + " : AccessDenied");
}
}

[Android][AWS] How to iterate all AWS S3 bucket access right 如何列舉 AWS S3 的所有 bucket

2016年11月22日星期二

[Android][AWS] How to connent to AWS S3 get data

get Keys form AWS S3

AmazonS3 s3 = new AmazonS3Client(CRED);
ListObjectsRequest lor = new ListObjectsRequest()
                             .withBucketName("myBucket")
                             .withPrefix("code/");
ObjectListing objectListing = s3.listObjects(lor);
for (S3ObjectSummary summary: objectListing.getObjectSummaries()) {
    System.out.println(summary.getKey());
}

 AWSCredentials creden=new BasicAWSCredentials(accessKey,secretKey);
    AmazonS3Client s3Client=new AmazonS3Client(creden);

S3Object object = s3Client.getObject(new GetObjectRequest(
                "BucketName", "keyName"));

        BufferedReader reader = new BufferedReader(new InputStreamReader(
                object.getObjectContent()));
        Writer writer = new OutputStreamWriter(new FileOutputStream(file));

        while (true) {
            String line = reader.readLine();
            if (line == null)
                break;
            writer.write(line + "\n");
        }
    writer.flush();
    writer.close();
    reader.close();