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Java EE 8 and Angular

By : Prashant Padmanabhan

3.2 (6)

Java EE 8 and Angular

3.2 (6)

By: Prashant Padmanabhan

Overview of this book

The demand for modern and high performing web enterprise applications is growing rapidly. No more is a basic HTML frontend enough to meet customer demands. This book will be your one-stop guide to build outstanding enterprise web applications with Java EE and Angular. It will teach you how to harness the power of Java EE to build sturdy backends while applying Angular on the frontend. Your journey to building modern web enterprise applications starts here! The book starts with a brief introduction to the fundamentals of Java EE and all the new APIs offered in the latest release. Armed with the knowledge of Java EE 8, you will go over what it's like to build an end-to-end application, configure database connection for JPA, and build scalable microservices using RESTful APIs running in Docker containers. Taking advantage of the Payara Micro capabilities, you will build an Issue Management System, which will have various features exposed as services using the Java EE backend. With a detailed coverage of Angular fundamentals, the book will expand the Issue Management System by building a modern single page application frontend. Moving forward, you will learn to fit both the pieces together, that is, the frontend Angular application with the backend Java EE microservices. As each unit in a microservice promotes high cohesion, you will learn different ways in which independent units can be tested efficiently. Finishing off with concepts on securing your enterprise applications, this book is a handson guide for building modern web applications.

Preface

Preface

Who this book is for

What this book covers

To get the most out of this book

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Free Chapter

What's in Java EE 8?

What's in Java EE 8?

Improvements in EE 8

Overview of Java SE 8

CDI 2.0

JSON Processing 1.1

JSON Binding 1.0

JAXRS 2.1

Servlet 4.0

JSF 2.3

Bean Validation 2.0

Java EE Security API 1.0

Summary

The CDI Advantage Combined with JPA

The CDI Advantage Combined with JPA

Introduction to context and dependency injection

CDI programming model

Java Persistence API (JPA)

Summary

Understanding Microservices

Understanding Microservices

Traditional monoliths

Multiple small units of work

Single responsibility

The need for REST

Scale only what needs to scale

The bad parts, yes, there are a few

Summary

Building and Deploying Microservices

Building and Deploying Microservices

Fat JAR

Skinny WAR

Examples using Payara Micro

MicroProfile

Docker containers

Summary

Java EE Becomes JSON Friendly

Java EE Becomes JSON Friendly

REST prefers JSON

JSON, a first-class citizen

No more third-party libraries

JSON processing

JSON binding

Few tips in practice

Summary

Power Your APIs with JAXRS and CDI

Power Your APIs with JAXRS and CDI

Resources

Providers

Client API

Filters and interceptors

Validation

Asynchronous processing

Server-Sent Events

WebSockets

Context

Swagger

Summary

Putting It All Together with Payara

Putting It All Together with Payara

Building an Issue Management System (IMS) backend

Using Java EE 8 technologies

Running multiple microservices in Docker

Learning to use the new features of Payara Micro

Extras

Summary

Basic TypeScript

Basic TypeScript

Getting started with TypeScript

Using variables, types, and functions

Working with classes and interfaces

Working with arrays

Summary

Angular in a Nutshell

Angular in a Nutshell

Understanding Angular

Angular 2 and beyond

A better Hello World

Data binding

Services

Routes

Building a project

Summary

Angular Forms

Angular Forms

Two approaches to forms

Understanding forms with an example

Building custom forms with validations

Checking the state of a form

Forms with NgModel

Reactive forms

Handling forms in Angular

Gaining more control with reactive forms

Summary

Building a Real-World Application

Building a Real-World Application

Building an Issue Management System frontend

Setup

Securing the application

Issue lists and details

Issue creation and updates

Issue comments

Chatting on an issue

Production-ready build

Summary

Connecting Angular to Java EE Microservices

Connecting Angular to Java EE Microservices

Integration with microservices

Cross Origin Resource Sharing (CORS)

JSON communication

Observables in Angular

Going to production

Summary

Testing Java EE Services

Testing Java EE Services

Testing strategies for microservices

Testing in practice

Summary

Securing the Application

Securing the Application

Securing the application

Neither in Java EE nor MicroProfile

General tips

Summary

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Building and Deploying Microservices

With an understanding of what makes a microservice, we can now take a deep dive into bundling microservices and deploying them. We will make use of the containerization solutions available and see how they can be used when working with this architectural style.

Java EE has a rich set of APIs for building various types of applications. With decades of experience in distributed applications, Java EE is a promising platform for use with microservices. Enterprise features such as transactions, security, web sockets, persistence, messaging, asynchronous processing, Restful APIs, and an ever-growing set of open source tools and libraries, make it a compelling choice.

Here's what we will cover in this chapter:

Fat JAR
Skinny WAR
Examples using Payara Micro
MicroProfile:
- Java EE already has support
- WildFly Swarm
- Spring Cloud
Docker containers...

Visually different images

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Tech Concepts

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Programming languages

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