Book Image

Mastering Spring Boot 2.0

By : Dinesh Rajput
Book Image

Mastering Spring Boot 2.0

By: Dinesh Rajput

Overview of this book

Spring is one of the best frameworks on the market for developing web, enterprise, and cloud ready software. Spring Boot simplifies the building of complex software dramatically by reducing the amount of boilerplate code, and by providing production-ready features and a simple deployment model. This book will address the challenges related to power that come with Spring Boot's great configurability and flexibility. You will understand how Spring Boot configuration works under the hood, how to overwrite default configurations, and how to use advanced techniques to prepare Spring Boot applications to work in production. This book will also introduce readers to a relatively new topic in the Spring ecosystem – cloud native patterns, reactive programming, and applications. Get up to speed with microservices with Spring Boot and Spring Cloud. Each chapter aims to solve a specific problem or teach you a useful skillset. By the end of this book, you will be proficient in building and deploying your Spring Boot application.
Table of Contents (23 chapters)
Title Page
Copyright and Credits
Dedication
Packt Upsell
Contributors
Preface
Index

Customizing Spring Boot


Spring Boot offers you full control over auto-configuration. You can control what Spring Boot does. There are several options for customizing Spring Boot configuration. They are as follows:

  • You can customize by setting some of Spring Boot's properties in the properties or YAML files
  • Also, you can define certain beans yourself so Spring Boot won't use the default
  • You can disable some autoconfiguration explicitly
  • Change dependencies

Let's see these four points in detail, and how to use them to customize Spring Boot auto-configuration in your Spring application.

Customizing using Spring Boot properties

Spring Boot allows you to customize your application configurations and you can use the same application code in different environments such as staging, production, and so on. Spring Boot provides several methods for this customization—you can use properties files, YAML files, environment variables, and command-line arguments to externalize configuration.

Spring Boot gives you...