simple-spring-boot This is a very simple and unoptimized universal react application with JReact.
The Java part of the application is to provide a REST server and serve static resources while there is a ServletFilter rendering each request which accepts text/html as react application.

It should be sufficient to run the following commands in the simple-spring-boot directory.

mvn clean package
java -jar target/jreact-example-0.0.1-SNAPSHOT.jar

Then open the url http://localhost:8080 with your browser.