Enterprise Java

Skip the noise that can come with developing apps, and instead focus on building apps.

Calling all developers!

Using the Free #Developer#Sandbox​ for #RedHat#OpenShift​, we will demo how you can take your existing source code or create a new application, easily deploy and manage them as containers, edit the code from our integrated developer experience, and much more.

Try a Java tutorial in the sandbox

What is enterprise Java programming?

Enterprise Java is the use of Java for application development in enterprise-scale software, and merges a collection of APIs and application servers that implement those APIs. Enterprise Java also includes related technologies, such as the Spring Framework.  

Enterprise Java Beans (EJB), Java Message Service (JMS), Java Persistence API (JPA), Java Transaction API (JTA), and Java Server Faces (JSF) make up the collection of modular tools that enable enterprise needs, such as distributed computing utilizing containers, web services, and high performance applications. 

Enterprises use Java today to build applications utilizing microservices rather than taking a monolithic approach. Enterprise Java is used across government, telecom, banking information systems, accounting, and e-commerce.

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Summit 2021 on-demand replay

Get started with Quarkus

Course

Developing with Quarkus

8 lessons | 155 minutes

Learn Quarkus, a Kubernetes-native Java stack tailored for GraalVM and OpenJDK HotSpot. Stand up an application with a hello endpoint, then get familiar with Hibernate ORM via Panache, a Quarkus component.

Lesson

Getting started with Quarkus

10 minutes | Beginner

Learn Quarkus basics by standing up a straightforward application serving a hello endpoint.

Lesson

Effective data with Hibernate and Panache from Quarkus

15 minutes | Beginner

Learn about Quarkus and Hibernate ORM with Panache to create supersonic, subatomic Java applications with simplified Hibernate queries.

Lesson

Reactive streaming with Quarkus and Kafka

15 minutes | Beginner

Build a streaming application using MicroProfile reactive streams messaging and Apache Kafka, a distributed streaming platform.

Deploy a Java application on Kubernetes in minutes

Move your legacy Java application into a container and deploy it to Kubernetes. The free Developer Sandbox for Red Hat OpenShift is a free OpenShift cluster that gives you access to the cutting-edge technologies built on Kubernetes. A quick sign-up gets you a cluster and access to a set of developer tools and services.

Try out the Source-to-Image (s2i) feature in the free Developer Sandbox for Red Hat OpenShift by following along with the Spring Petclinic application learning experience.

 

Microservices for Java Developers book cover

Free book: Microservices for Java Developers

The microservice architectural approach lets you build complex systems to adapt to rapidly changing competitive markets. Now in its second edition, this step-by-step guide introduces concepts such as immutable delivery, and gets you started building distributed systems for managing microservices using Linux containers, Kubernetes, and three different Java frameworks: Spring BootDropwizard, and WildFly Swarm (WildFly Swarm was renamed Thorntail in 2018).

 

Learn how to:

  • Expose a service.
  • Configure at runtime.
  • Expose metrics and insight.
  • Call downstream services in a safe manner.

 

Download free book

Building Reactive Microservices in Java

Free book: Building Reactive Microservices in Java

Eclipse Vert.x is a toolkit that helps developers build reactive applications to run within the Java Virtual Machine. Whether you want to get rid of your monolithic enterprise applications, or avoid creating new ones, Eclipse Vert.x is worth investigating. Learn how to use reactive design to create distributed, reactive microservices within this framework. 

 

This book explains how to:

  • Explore the elements of reactive microservices and learn how Vert.x works.
  • Build and consume a single microservice to understand how messaging improves its reactiveness.
  • Create an entire microservices system, using stability and resilience patterns to manage failures.
  • Use the OpenShift container platform to deploy and manage microservices in a virtual or cloud environment.

 

Download free book

After giving a quick introduction to Kogito, Maciej Swiderski will explain how it can be used to build cloud-ready, event-driven business applications. This will be followed with a demonstration of how Quarkus (with its hot reload capabilities) can be used to create microservices implementing the business logic of a complex domain with rules and modeling its workflows through business processes integrated with Kafka to consume and produce business events.

In this tutorial, Burr Sutter demonstrates how to optimize your enterprise Java apps, your APIs, your microservices, and your “serverless functions” for a Kubernetes/OpenShift environment—vastly smaller, vastly faster, and fundamentally more scalable.

Enterprise Java articles

Featured image for Cryostat (was ContainerJFR) topics.
Article

Install the Cryostat Operator on Kubernetes from OperatorHub.io

January 20, 2022

Installing Cryostat into your Kubernetes environment is easy with the new Cyrostat Operator, now available from OperatorHub.io.

Featured image for OpenShift integration topics.
Article

Integrate Apache ActiveMQ brokers using Camel K

Joao Tavares
January 12, 2022

Develop a Camel K integration workflow to get your Apache ActiveMQ Classic and Apache ActiveMQ Artemis brokers working together on Red Hat OpenShift.

Featured image for Red Hat JBoss Enterprise Application Platform.
Article

How to migrate your Java applications to Red Hat OpenShift

January 12, 2022

Follow these steps to migrate Red Hat JBoss EAP applications to OpenShift using the Source-to-Image builder and migration toolkit for applications.

Featured image for Red Hat JBoss Enterprise Application Platform.
Article

Why you should migrate your Java workloads to OpenShift

January 7, 2022

Explore the benefits of moving your Java applications to OpenShift. Learn what the migration process entails and how tools like Konveyor make it easy.

Java + Quarkus 2
Article

Simplify Java persistence using Quarkus and Hibernate Reactive

January 6, 2022

Learn how to simplify reactive Java applications that persist data using Quarkus and the Hibernate ORM with Panache extension.

Red Hat Developer's top 10 articles of 2021.
Article

Top 10: Our most read developer articles of 2021

December 27, 2021

Looking for something to read over winter break? Take your pick from the most popular developer articles published on Red Hat Developer in 2021.

More Enterprise Java articles

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Quarkus

A cloud-native, container-first stack for creating Java applications tailored for GraalVM + HotSpot, crafted from Java libraries and standards.