无法在 Android 应用程序中使用 Amazon S3 SDK 上传图像。 400错误

Question

I am trying to implement Amazon S3 SDK to upload image from Android application but always getting this 400 error, malformed xml bad request. I've taken source code from this reference link

I've correct access_key , secret_key and bucket_key . There is no error related to this.

If anybody have a working sample in order to access this S3 API, please share. I am not able to find SDK error and stuck with the same.

Answer 1

I think this would help you to upload image

String EXPIRY_DATE = "Mon, Jan 1 2030 11:11:11 GMT";
BasicAWSCredentials awsCreds = new BasicAWSCredentials(ACCESS_KEY_ID, SECRET_ACCESS_KEY);
AmazonS3Client s3Client = new AmazonS3Client(awsCreds);

ResponseHeaderOverrides override = new ResponseHeaderOverrides();
override.setContentType("image/jpeg");
override.setExpires(EXPIRY_DATE);

File imageFile = new File(path);
PutObjectRequest pros = new PutObjectRequest(BUCKET_NAME, BUCKET_PATH, imageFile);
ObjectMetadata meta = new ObjectMetadata();
meta.addUserMetadata("expires", EXPIRY_DATE);
meta.setHeader("expires", EXPIRY_DATE);
pros.setMetadata(meta);
s3Client.putObject(pros);

EDIT

Use this for generating URL

  String generatedURL=null;
    try {
        String key = BUCKET_PATH + ImageName;
        GeneratePresignedUrlRequest urlRequest = new GeneratePresignedUrlRequest(BUCKET_NAME, key);
        Date date1 = new Date(EXPIRY_DATE);
        urlRequest.setExpiration(date1);
        urlRequest.setResponseHeaders(override);
        URL url = s3Client.generatePresignedUrl(urlRequest);
        generatedURL = url.toString();
    } catch (Exception e) {
        logger.error("Error at ", e);
    }