A Vaadin 10 Tutorial for Core Java Developers - Part 01
Target of this tutorial is the development of an industrial style project. We will cover here in this part
- how to initialize the project
- how to handle different JDK vendors and versions
- how to ramp up a Vaadin 10 project
Have in mind, that this is only the first part of the tutorial.
To explore all possibilities of this tutorial you need docker installed. Additionally docker-compose if you want to have a look at the TDD part that includes full stack tests with Testbench, later.
Notice: Testbench is a commercial product from Vaadin that is available here https://vaadin.com/testbench To play around, you can request a trial lic.
For this tutorial we are using Meecrowave from Apache Open-Webbeans - Team This is based on Tomcat, but more in a SpringBoot style. So we are able to manage the complete container with a few lines of code like the following.
public class BasicTestUIRunner {
private BasicTestUIRunner() { }
public static void main(String[] args) {
new Meecrowave(new Meecrowave.Builder() {
{
// randomHttpPort();
setHttpPort(8080);
setTomcatScanning(true);
setTomcatAutoSetup(true);
setHttp2(true);
}
})
.bake()
.await();
}
}To start the App, invoke the main method from the class BasicTestUIRunner. The Meecrowave is started at Port 8080. But have in mind, that you can use a random port with randomHttpPort();. This is very usefull for concurrent UI Tests later. But be patient, we will explore this together..
Meecrowave will is offering a maven plugin as well. This is not needed if you don´t want to use it. But it is convenient if you want to start the container inside docker for development purposes.
For this have a look at the file docker_run_locale.sh How this is done and how to use this, I will explain later, as well.
For this I prepared a bunch of Docker images with different JDK´s vendors and versions. To use this I created the file docker_compile_locale.sh
docker run \
--rm \
--name compile \
-v "$(pwd)":/usr/src/mymaven \
-w /usr/src/mymaven svenruppert/maven-3.5-jdk-openjdk-10 \
mvn clean install \
-Dmaven.test.skip=trueThis will create a new Docker Container and will start a mvn clean install The result will be under target
Happy Coding