title: Amazon S3 upload file and get URL
body: <p>Is it possible to upload a txt/pdf/png file to Amazon <a href="https://aws.amazon.com/s3/" rel="noreferrer">S3</a> in a single action, and get the uploaded file URL as the response?</p>
  <p>If so, is AWS Java SDK the right library that I need to add in my java struts2 web application?</p>
  <p>Please suggest me a solution for this.</p>