Project Base for Vaadin and Spring Boot
This project can be used as a starting point to create your own Vaadin application with Spring Boot. It contains all the necessary configuration and some placeholder files to get you started.
The best way to create your own project based on this starter is start.vaadin.com - you can get only the necessary parts and choose the package naming you want to use.
Uses Karibu-DSL.
Running the Application
There are two ways to run the application : using mvn spring-boot:run
or by running the Application
class directly from your IDE.
You can use any IDE of your preference,but we suggest Eclipse or Intellij IDEA.
Below are the configuration details to start the project using a spring-boot:run
command. Both Eclipse and Intellij IDEA are covered.
Eclipse
- Right click on a project folder and select
Run As
-->Maven build..
. After that a configuration window is opened. - In the window set the value of the Goals field to
spring-boot:run
- You can optionally select
Skip tests
checkbox - All the other settings can be left to default
Once configurations are set clicking Run
will start the application
Intellij IDEA
- On the right side of the window, select Maven --> Plugins-->
spring-boot
-->spring-boot:run
goal - Optionally, you can disable tests by clicking on a
Skip Tests mode
blue button.
Clicking on the green run button will start the application.
After the application has started, you can view your it at http://localhost:8080/ in your browser.
If you want to run the application locally in the production mode, use spring-boot:run -Pproduction
command instead.
Running Integration Tests
Integration tests are implemented using Vaadin TestBench. The tests take a few minutes to run and are therefore included in a separate Maven profile. We recommend running tests with a production build to minimize the chance of development time toolchains affecting test stability. To run the tests using Google Chrome, execute
mvn verify -Pit,production
and make sure you have a valid TestBench license installed.
Profile it
adds the following parameters to run integration tests:
-Dwebdriver.chrome.driver=path_to_driver
-Dcom.vaadin.testbench.Parameters.runLocally=chrome
If you would like to run a separate test make sure you have added these parameters to VM Options of JUnit run configuration
Live Reload (optional)
With live reload, you can see the results of your code changes immediately. When you edit your Java code and recompile it, the application changes will be automatically reloaded and the browser is refreshed. This is done by leveraging Spring Boot Developer Tools. To be able to see the changes in the browser tab, the page still needs to be reloaded. That can also be automated via a LiveReload browser extension. One such extension for Google Chrome is LiveReload. In Firefox, LiveReload - Web extension can be used. You can find such similar extensions for other major browsers too. These extensions add an icon to your browser next to the address bar. To enable the extension, you should click that icon after you opened your application.
You can find more information at Live Reload in Spring Boot Applications document.
Structure
Vaadin web applications are full-stack and include both client-side and server-side code in the same project.
Directory | Description |
---|---|
frontend/ |
Client-side source directory |
index.html |
HTML template |
index.ts |
Frontend entrypoint |
main-layout.ts |
Main layout Web Component (optional) |
views/ |
UI views Web Components (TypeScript / HTML) |
styles/ |
Styles directory (CSS) |
src/main/java/<groupId>/ |
Server-side source directory |
Application.java |
Server entrypoint |
AppShell.java |
application-shell configuration |
Useful links
- Read the documentation at vaadin.com/docs.
- Follow the tutorials at vaadin.com/tutorials.
- Watch training videos and get certified at vaadin.com/learn/training.
- Create new projects at start.vaadin.com.
- Search UI components and their usage examples at vaadin.com/components.
- View use case applications that demonstrate Vaadin capabilities at vaadin.com/examples-and-demos.
- Discover Vaadin's set of CSS utility classes that enable building any UI without custom CSS in the docs.
- Find a collection of solutions to common use cases in Vaadin Cookbook.
- Find Add-ons at vaadin.com/directory.
- Ask questions on Stack Overflow or join our Discord channel.
- Report issues, create pull requests in GitHub.