Packaging and deploying Spring Boot applications as WAR files

This guide explains how to: Package a Maven-based Spring Boot application as a WAR file Deploy a WAR file to Apache Tomcat Deploy a WAR file to Eclipse Jetty Packaging a Maven-based Spring Boot application as a WAR file To change the packaging in a Maven-based Spring Boot application that was ...

Enable Users to Upload & Download Files

This guide demonstrates how to create a web app that enables users to upload and download files to and from the server in Java. In this guide, we create a web app that enables users to upload and download files to and from the server. The UI allows users to select local files to be uploaded to the ...
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Practical Vaadin: Developing Web Applications in Java

We love to celebrate the achievements of #Vaadiners who take on new challenges and side projects that show their appreciation towards the platform we’ve built together. So, we’d like to take this opportunity to congratulate our DevRel Manager, Alejandro Duarte, on his third technical book, ...
registration form in 100% java

Create a Registration Form in Pure Java

Learn how to create a responsive signup form with error handling and cross-field validation written in pure Java. In this guide, we create a standard registration form with error handling and cross-field validation. This signup form is developed entirely in pure Java using Vaadin Flow (no HTML or ...
securing apps with spring boot and vaadin

Securing Vaadin apps with Spring Security

Getting security right is critical when building web apps. The upside of building a web app is that people can use it wherever they are, on any device. But you need to ensure that only the right people are able to access it, and that they have access to only the features you intended.  In this ...

Accessibility in Modern Enterprise Web Apps

The COVID-19 pandemic drastically sped up the world's digital transformation. Now, in many cases digital is the only channel through which customers can communicate with brands and companies. In addition, remote work is becoming a new norm and companies are waking up to the impact that web app ...

Stuck in the lift: Nii Yeboah

The people at Vaadin are at the core of our business, and with this series we want to celebrate their contributions. Plus, Vaadiners are quite a diverse and interesting bunch, so we thought you might be curious to know who’s behind the scenes at Vaadin helping you build your web apps. Every few ...

Are Progressive Web Apps the future?

Today, mobile phones account for more than half of all web traffic. They have become mini personal computers found in the pockets of users, due to their portability, easy access to the internet, and the exponential growth of services provided over mobile. Users expect websites to function quickly ...
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Vaadin Community Summer Recap

“It's no secret that having a strong and enthusiastic community around open-source technologies is one of the main driving factors in the success of not only open-source projects but, most importantly, of their users." - Alejandro Duarte, Dev Rel Manager The Vaadin community is stronger than ever ...