Tutoriel jBPM Workflow — Hello World (Guide Débutant)

 Si vous débutez avec jBPM, la meilleure façon de commencer est de créer un workflow simple de type Hello World.

Ce tutoriel vous montre :

  • Comment créer un projet jBPM

  • Comment modéliser un processus simple

  • Comment exécuter et tester le workflow

Cette architecture est couramment utilisée dans les environnements microservices modernes.

👉 environnements microservices modernes

📌 Qu’est-ce que jBPM ?

jBPM est un moteur BPM (Business Process Management) open source basé sur la norme BPMN.

Il permet :

  • Modéliser des processus métier

  • Automatiser des tâches

  • Intégrer des règles métier

  • Orchestrer des services

🧠 Objectif du Hello World

Créer un workflow simple :

Start → Script Task → End

Le Script Task affichera “Hello World”.

🖼️ Diagramme Hello World

🛠 Étape 1 — Créer un projet jBPM

  1. Créer un projet Maven

  2. Ajouter dépendances jBPM

  3. Configurer le runtime

Exemple dépendance Maven

<dependency>
    <groupId>org.jbpm</groupId>
    <artifactId>jbpm-flow</artifactId>
    <version>7.x.x</version>
</dependency>

🛠 Étape 2 — Créer le processus BPMN

Dans jBPM Modeler :

  1. Ajouter Start Event

  2. Ajouter Script Task

  3. Ajouter End Event

Exemple Script Task

System.out.println("Hello World from jBPM!");

🛠 Étape 3 — Exécuter le processus

Exemple Java :

KieSession ksession = kcontainer.newKieSession();
ksession.startProcess("hello-world");

🖼️ Exécution

🧠 Ce que vous avez appris

  • Structure d’un processus BPMN

  • Start Event

  • Script Task

  • End Event

  • Exécution via API

🔐 Bonnes pratiques pour débuter

✔ Garder le workflow simple
✔ Tester localement
✔ Comprendre BPMN avant complexité
✔ Ajouter logs

🎯 Prochaine étape

Après Hello World, vous pouvez apprendre :

  • Exclusive Gateway

  • Parallel Gateway

  • Inclusive Gateway

  • Event Subprocess

🎯 Conclusion

Le Hello World est la première étape pour comprendre :

  • La logique BPMN

  • Le moteur jBPM

  • L’exécution des processus

Une base solide pour créer des workflows complexes.

💼 Support professionnel disponible

Si vous rencontrez des problèmes sur des projets réels liés au développement backend d’entreprise ou à l’automatisation des workflows, je propose des services de conseil payants, de débogage en production, de support projet et de formations ciblées.

Les technologies couvertes incluent Java, Spring Boot, PL/SQL, Azure, CMS, ainsi que l’automatisation des workflows (jBPM, Camunda BPM, RHPAM), DMN/Drools.

📧 Contact: ishikhanirankari@gmail.com | info@realtechnologiesindia.com

🌐 Website: IT Trainings | Digital lectern | Digital rostrum | Digital metal podium     



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