Book Image

Developing Java Applications with Spring and Spring Boot

By : Claudio Eduardo de Oliveira, Greg L. Turnquist, Alex Antonov
Book Image

Developing Java Applications with Spring and Spring Boot

By: Claudio Eduardo de Oliveira, Greg L. Turnquist, Alex Antonov

Overview of this book

Spring Framework has become the most popular framework for Java development. It not only simplifies software development but also improves developer productivity. This book covers effective ways to develop robust applications in Java using Spring. The course is up made of three modules, each one having a take-away relating to building end-to-end java applications. The first module takes the approach of learning Spring frameworks by building applications.You will learn to build APIs and integrate them with popular fraemworks suh as AngularJS, Spring WebFlux, and Spring Data. You will also learn to build microservices using Spring's support for Kotlin. You will learn about the Reactive paradigm in the Spring architecture using Project Reactor. In the second module, after getting hands-on with Spring, you will learn about the most popular tool in the Spring ecosystem-Spring Boot. You will learn to build applications with Spring Boot, bundle them, and deploy them on the cloud. After learning to build applications with Spring Boot, you will be able to use various tests that are an important part of application development. We also cover the important developer tools such as AMQP messaging, websockets, security, and more. This will give you a good functional understanding of scalable development in the Spring ecosystem with Spring Boot. In the third and final module, you will tackle the most important challenges in Java application development with Spring Boot using practical recipes. Including recipes for testing, deployment, monitoring, and securing your applications. This module will also address the functional and technical requirements for building enterprise applications. By the end of the course you will be comfortable with using Spring and Spring Boot to develop Java applications and will have mastered the intricacies of production-grade applications.
Table of Contents (34 chapters)
Title Page - Courses
Copyright and Credits - Courses
Packt Upsell - Courses
Preface
Bibliography
Index

Adding production-ready support


We've created a Spring web app with minimal code and released it to production. This is the perfect time to introduce production-grade support features.

There are some questions that often arise in production, and these are as follows:

  • What do we do when the system administrator wants to configure his or her monitoring software to ping our app to see if it's up?
  • What happens when our manager wants to know the metrics of people hitting our app?
  • What are we going to do when the ops center supervisor calls us at 2:00 a.m. and we have to figure out what went wrong?

The last feature we are going to introduce in this chapter is Spring Boot's Actuator module. This module provides some super slick Ops-oriented features that are incredibly valuable in a production environment.

We start by adding this dependency to our build.gradle as follows:

    compile('org.springframework.boot:spring-boot-starter-actuator') 

When you run this version of our app, the same business functionality...