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Mastering Spring 5.0

By : In28Minutes Official

3.7 (3)

Mastering Spring 5.0

3.7 (3)

By: In28Minutes Official

Overview of this book

Spring 5.0 is due to arrive with a myriad of new and exciting features that will change the way we’ve used the framework so far. This book will show you this evolution—from solving the problems of testable applications to building distributed applications on the cloud. The book begins with an insight into the new features in Spring 5.0 and shows you how to build an application using Spring MVC. You will realize how application architectures have evolved from monoliths to those built around microservices. You will then get a thorough understanding of how to build and extend microservices using Spring Boot. You will also understand how to build and deploy Cloud-Native microservices with Spring Cloud. The advanced features of Spring Boot will be illustrated through powerful examples. We will be introduced to a JVM language that’s quickly gaining popularity - Kotlin. Also, we will discuss how to set up a Kotlin project in Eclipse. By the end of the book, you will be equipped with the knowledge and best practices required to develop microservices with the Spring Framework.

Preface

Preface

What this book covers

What you need for this book

Who this book is for

Conventions

Reader feedback

Customer support

Free Chapter

Evolution to Spring Framework 5.0

Evolution to Spring Framework 5.0

Spring Framework

Why is Spring Framework popular?

Spring modules

Spring Projects

New features in Spring Framework 5.0

Spring Boot 2.0 new features

Summary

Dependency Injection

Dependency Injection

Understanding dependency injection

Summary

Building a Web Application with Spring MVC

Building a Web Application with Spring MVC

Java web application architecture

Basic flows

An overview of Spring MVC

Important concepts behind Spring MVC

Spring MVC - advanced features

Spring Security

Summary

Evolution toward Microservices and Cloud-Native Applications

Evolution toward Microservices and Cloud-Native Applications

Typical web application architecture with Spring

Problems solved by Spring

Application development goals

Challenges with monolithic applications

Understanding microservices

Cloud-Native applications

Spring projects

Summary

Spring Framework

Why is Spring Framework popular?

Spring modules

Spring Projects

New features in Spring Framework 5.0

Spring Boot 2.0 new features

Summary

Building Microservices with Spring Boot

Building Microservices with Spring Boot

What is Spring Boot?

Spring Boot Hello World

What is REST?

First REST service

Creating a todo resource

Spring Initializr

A quick peek into auto-configuration

Summary

Extending Microservices

Extending Microservices

Exception handling

HATEOAS

Validation

Documenting REST services

Securing REST services with Spring Security

Internationalization

Caching

Summary

Advanced Spring Boot Features

Advanced Spring Boot Features

Externalised configuration

Embedded servers

Developer tools

Spring Boot Actuator

Deploying ;an application to Cloud

Summary

Spring Data

Spring Data

Background - data stores

Spring Data

Spring Data Rest

Big Data

Summary

Spring Cloud

Spring Cloud

Introducing Spring Cloud

Demo microservices setup

Centralized microservice configuration

Spring Cloud Bus

Declarative REST Client - Feign

Load balancing

The Name server

Workings of Name server

API Gateways

Distributed tracing

Hystrix - fault tolerance

Summary

Spring Cloud Data Flow

Spring Cloud Data Flow

Message-based asynchronous communication

Spring projects for asynchronous messages

Spring Cloud Stream

Spring Cloud Data Flow

Spring Cloud Task

Summary

Reactive Programming

Reactive Programming

The Reactive Manifesto

Reactive use case - a stock price page

Reactive programming in Java

Summary

Spring Best Practices

Spring Best Practices

Maven standard directory layout

Layered architecture

Exception handling

Keeping your Spring configuration light

Managing dependency versions for Spring Projects

Unit testing

Integration testing

Caching

Logging

Summary

Working with Kotlin in Spring

Working with Kotlin in Spring

Kotlin

Kotlin versus Java

Creating a Kotlin project in Eclipse

Creating a Spring Boot project using Kotlin

Implementing a REST service using Kotlin

Summary

Working with Kotlin in Spring

Kotlin is a statically-typed JVM language, enabling code that is expressive, short, and readable. Spring Framework 5.0 has good support for Kotlin.

In this chapter, we will explore some of the important features of Kotlin and learn how to create a basic REST service with Kotlin and Spring Boot.

By the end of this chapter, you will understand the following:

What is Kotlin?
How does it compare with Java?
How to create a Kotlin project in Eclipse?
How to create a Spring Boot project with Kotlin?
How to implement and unit test a simple Spring Boot REST service using Kotlin?

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Programming languages

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