Book Image

Spring Boot 2.0 Cookbook - Second Edition

By : Alex Antonov
Book Image

Spring Boot 2.0 Cookbook - Second Edition

By: Alex Antonov

Overview of this book

The Spring framework provides great flexibility for Java development, which also results in tedious configuration work. Spring Boot addresses the configuration difficulties of Spring and makes it easy to create standalone, production-grade Spring-based applications. This practical guide makes the existing development process more efficient. Spring Boot Cookbook 2.0 Second Edition smartly combines all the skills and expertise to efficiently develop, test, deploy, and monitor applications using Spring Boot on premise and in the cloud. We start with an overview of the important Spring Boot features you will learn to create a web application for a RESTful service. Learn to fine-tune the behavior of a web application by learning about custom routes and asset paths and how to modify routing patterns. Address the requirements of a complex enterprise application and cover the creation of custom Spring Boot starters. This book also includes examples of the new and improved facilities available to create various kinds of tests introduced in Spring Boot 1.4 and 2.0, and gain insights into Spring Boot DevTools. Explore the basics of Spring Boot Cloud modules and various Cloud starters to make applications in “Cloud Native” and take advantage of Service Discovery and Circuit Breakers.

Related Content you might be interested in

Current Title:

Small book image
Spring Boot 2.0 Cookbook - Second Edition
Alex Antonov
Feb, 2018 | 286 pages
Small book image
Mastering Spring Boot 2.0
Dinesh Rajput
May, 2018 | 390 pages
Small book image
Mastering Spring Cloud
Piotr Mińkowski
Apr, 2018 | 432 pages
Small book image
Learning Spring Boot 2.0
Greg L Turnquist
Nov, 2017 | 370 pages
Table of Contents (11 chapters)
Preface
Preface
Who this book is for
What this book covers
To get the most out of this book
Sections
Get in touch
Free Chapter
1
Getting Started with Spring Boot
Getting Started with Spring Boot
Introduction
Using a Spring Boot template and starter
Creating a simple application
Launching an application using Gradle
Using the command-line runners
Setting up a database connection
Setting up a data repository service
Scheduling executors
2
Configuring Web Applications
Configuring Web Applications
Creating a basic RESTful application
Creating Spring Data REST service
Configuring custom servlet filters
Configuring custom interceptors
Configuring custom HttpMessageConverters
Configuring custom PropertyEditors
Configuring custom type formatters
3
Web Framework Behavior Tuning
Web Framework Behavior Tuning
Introduction
Configuring route matching patterns
Configuring custom static path mappings
Tuning Tomcat via ServletWebServerFactory
Choosing embedded servlet containers
Adding custom connectors
4
Writing Custom Spring Boot Starters
Writing Custom Spring Boot Starters
Introduction
Understanding Spring Boot autoconfiguration
Creating a custom Spring Boot autoconfiguration starter
Configuring custom conditional bean instantiations
Using custom @Enable annotations to toggle configuration
5
Application Testing
Application Testing
Introduction
Creating tests for MVC controllers
Configuring a database schema and populating it
Creating tests using an in-memory database
Creating tests using mock objects
Creating a JPA component test
Creating a WebMvc component test
Writing tests using Cucumber
Writing tests using Spock
6
Application Packaging and Deployment
Application Packaging and Deployment
Introduction
Creating a Spring Boot executable JAR
Creating Docker images
Building self-executing binaries
Spring Boot environment configuration, hierarchy, and precedence
Adding a custom PropertySource to the environment using EnvironmentPostProcessor
Externalizing an environmental configuration using property files
Externalizing an environmental configuration using environment variables
Externalizing an environmental configuration using Java system properties
Externalizing an environmental config using JSON
Setting up Consul
Externalizing an environmental config using Consul and envconsul
7
Health Monitoring and Data Visualization
Health Monitoring and Data Visualization
Introduction
Writing custom health indicators
Configuring management context
Emitting metrics
Monitoring Spring Boot via JMX
Managing Spring Boot via SSHd Shell and writing custom remote Shell commands
Integrating Micrometer metrics with Graphite
Integrating Micrometer metrics with Dashing
8
Spring Boot DevTools
Spring Boot DevTools
Introduction
Adding Spring Boot DevTools to a project
Configuring LiveReload
Configuring dynamic application restart triggers
Using Remote Update
9
Spring Cloud
Spring Cloud
Introduction
Getting started with Spring Cloud
Service discovery using Spring Cloud Consul
Using Spring Cloud Netflix – Feign
Service discovery using Spring Cloud Netflix – Eureka
Using Spring Cloud Netflix – Hystrix
10
Other Books You May Enjoy
Other Books You May Enjoy
Leave a review - let other readers know what you think

Adding a custom PropertySource to the environment using EnvironmentPostProcessor

In cases where the enterprise is already using a particular configuration system, custom written or off the shelf, Spring Boot provides us with a facility to integrate this into the application via the creation of a custom PropertySource implementation.

How to do it...

Let's imagine that we have an existing configuration setup that uses a popular Apache Commons Configuration framework and stores the configuration data in XML files:

  1. To mimic our supposed pre-existing configuration system, add the following content to the dependencies section in the build.gradle file:
dependencies { 
  ... 
  compile project(':db-count-starter'...
Previous Section
End of Section 7
Next Section