Book Image

Spring Microservices

By : Rajesh R V
Book Image

Spring Microservices

By: Rajesh R V

Overview of this book

The Spring Framework is an application framework and inversion of the control container for the Java platform. The framework's core features can be used by any Java application, but there are extensions to build web applications on top of the Java EE platform. This book will help you implement the microservice architecture in Spring Framework, Spring Boot, and Spring Cloud. Written to the latest specifications of Spring, you'll be able to build modern, Internet-scale Java applications in no time. We would start off with the guidelines to implement responsive microservices at scale. We will then deep dive into Spring Boot, Spring Cloud, Docker, Mesos, and Marathon. Next you will understand how Spring Boot is used to deploy autonomous services, server-less by removing the need to have a heavy-weight application server. Later you will learn how to go further by deploying your microservices to Docker and manage it with Mesos. By the end of the book, you'll will gain more clarity on how to implement microservices using Spring Framework and use them in Internet-scale deployments through real-world examples.
Table of Contents (18 chapters)
Spring Microservices
Credits
About the Author
Acknowledgments
About the Reviewer
www.PacktPub.com
Preface
Index

Spring Boot actuators


The previous sections explored most of the Spring Boot features required to develop a microservice. In this section, some of the production-ready operational aspects of Spring Boot will be explored.

Spring Boot actuators provide an excellent out-of-the-box mechanism to monitor and manage Spring Boot applications in production:

Note

The full source code of this example is available as the chapter2.bootactuator project in the code files of this book.

  1. Create another Spring Starter Project and name it chapter2.bootactuator. This time, select Web and Actuators under Ops. Similar to the chapter2.bootrest project, add a GreeterController endpoint with the greet method.

  2. Start the application as Spring Boot app.

  3. Point the browser to localhost:8080/actuator. This will open the HAL browser. Then, review the Links section.

    A number of links are available under the Links section. These are automatically exposed by the Spring Boot actuator:

Some of the important links are listed as follows...