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

Registering a client with Eureka


Registering a client with Eureka means that a client provides it's own meta-information, such as hostname with port, health indicator URL, and homepage. Each instance of a service sends heartbeat messages to the Eureka server; if Eureka doesn't receive the heartbeat over a configurable timetable, the instance is normally removed from the registry.

Let's create the main application class annotated with @SpringBootApplication for this client application. By default, Spring Discovery Client doesn't enable, so we have to use either @EnableDiscoveryClient or @EnableEurekaClient to enable it. Here is an example Eureka client:

package com.dineshonjava.eurekaclient; 
 
import org.springframework.boot.SpringApplication; 
import org.springframework.boot.autoconfigure.SpringBootApplication; 
import org.springframework.cloud.netflix.eureka.EnableEurekaClient; 
 
@SpringBootApplication 
@EnableEurekaClient 
public class EurekaClientApplication { 
 
   public static void...