CODEWITHSUNDEEP
javaspringamazon-web-servicesamazon-s3spring-cloud
Grego
Grego

Reputation: 327

Spring AWS S3: How to upload an image and get a URL which shows it rather than downloads it?

So my problem's that when I open the URL of the uploaded file, it downloads it. I did some research and the problem's that I should somehow specify to S3 that its an image. Currently this's the function that handles the upload but I don't know how could I set the type there. Or is there a built in function that recognises the images and when the URL is opened it shows them automatically rather than downloads them?

Thanks

public void writeResource(byte[] bytes, String fileName) throws IOException
{    
   Resource resource = this.resourceLoader.getResource("s3://bucket/" + fileName);
   WritableResource writableResource = (WritableResource) resource;
   try (OutputStream outputStream = writableResource.getOutputStream())
   {
      outputStream.write(bytes);
   }
}

Upvotes: 4

Views: 3036

Answers (2)

Grego
Grego

Reputation: 327

 @Autowired
 private AmazonS3 amazonS3;    

 ObjectMetadata meta = new ObjectMetadata();
                       meta.setContentType(file.getContentType());
                       meta.setContentLength(file.getSize());
                       meta.setHeader("filename", fileName);

 ByteArrayInputStream bis = new ByteArrayInputStream(file.getBytes());

 TransferManager transferManager = new TransferManager(this.amazonS3);
                 transferManager.upload(bucket, filename, bis, meta);

That's how I solved it. Hope this help someone. :)

Upvotes: 4

BestPractices
BestPractices

Reputation: 12876

Presumably you are sending this data back to a browser(?). If you are sending the contents of the file back to a browser, you need to set the content-type of the response to indicate to the browser that the file is an image; to do this, you'll want to set the content-type to "image/jpeg".

By specifying the content-type, the browser then knows what to do with the file (in this case, to render the image in the browser).

Upvotes: 0

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