Source code of the demo project for blog post "How to upload a file to Amazon S3 in Java (using Vaadin framework)"
Import the project to the IDE of your choosing as a Maven project.
Enter your Amazon Access Key and Secret Key in the properties fields aws.accessKey and aws.secretKey of application.properties file
Enter the S3 bucket name in the application.properties file
Run the application using mvn spring-boot:run or by running the Application class directly from your IDE.
Open http://localhost:9999/ in your browser.