Book Image

Java EE 8 Development with Eclipse - Third Edition

By : Ram Kulkarni
Book Image

Java EE 8 Development with Eclipse - Third Edition

By: Ram Kulkarni

Overview of this book

Java EE is one of the most popular tools for enterprise application design and development. With recent changes to Java EE 8 specifications, Java EE application development has become a lot simpler with the new specifications, some of which compete with the existing specifications. This guide provides a complete overview of developing highly performant, robust and secure enterprise applications with Java EE with Eclipse. The book begins by exploring different Java EE technologies and how to use them (JSP, JSF, JPA, JDBC, EJB, and more), along with suitable technologies for different scenarios. You will learn how to set up the development environment for Java EE applications and understand Java EE specifications in detail, with an emphasis on examples. The book takes you through deployment of an application in Tomcat, GlassFish Servers, and also in the cloud. It goes beyond the basics and covers topics like debugging, testing, deployment, and securing your Java EE applications. You'll also get to know techniques to develop cloud-ready microservices in Java EE.
Table of Contents (20 chapters)
Title Page
Copyright and Credits
Dedication
Packt Upsell
Free Chapter
1
Introducing JEE and Eclipse
Index

What is a microservice?


A microservice is a small application designed to perform a specific business task well. Microservices are typically implemented as RESTful web services. The following are some of the characteristics of a microservice: 

  • Smaller in size (compared to monolithic applications), and focuses on a single business task/module
  • Has its own database, in contrast to a monolithic application that has one database for all business functionalities
  • Is typically a standalone application, with a web container bundled into it

A large business application can be built by assembling smaller microservices. Compared to a large monolithic application, a microservice architecture provides the following benefits:

  • They are easy to deploy. In a monolithic application, deployment can be quite cumbersome because of the complexity of the application. Microservices are small and can be easily deployed on servers.
  • Microservices are loosely coupled, so changes in one can be isolated from other services...