Learn the Spring Boot 3 micro framework and build your first Java-based cloud-native applications and microservices. Spring Boot is the lightweight, nimbler cousin to the bigger Spring Framework, with plenty of "bells and whistles." This updated edition includes coverage of Spring Native, which will help you speed up your Spring Boot applications, as well as messaging with Spring Boot, Spring GraphQL, Spring Data JDBC and reactive relational database connectivity (R2DBC) with SQL.

This new edition also covers enhancements to actuator endpoints, MongoDB 4.0 support, layered JAR and WAR support, support to build OCI images using Cloud Native Build Packs, changes to the DataSource initialization mechanism, and how bean validation support has moved to a separate spring-boot-validation-starter module. This book will teach you how to work with relational and NoSQL databases for data accessibility using Spring Boot with Spring Data, how to persist data with the Java Persistence APIs (JPA), MyBatis, and much more. You'll learn how to enhance your native cloud or web applications with other APIs such as REST and how to build reactive web applications using Spring Boot with WebFlux.

Finally, you'll learn how to test applications using JUnit 5, as well as how to secure and deploy your application or service to cloud providers like Heroku. After reading Beginning Spring Boot 3, you'll have the skills needed to start building your own Spring Boot cloud-native, Java-based applications and microservices with confidence, and to take the next steps in your career.

What You Will Learn

• Explore the Spring Boot 3 micro framework using Spring Native for faster, better performance
• Build cloud-native Java applications and microservices with Spring Boot
• Work with relational and NoSQL databases using Boot with Spring Data
• Create reactive web applications using Spring's WebFlux
• Secure, test, and deploy applications and services

Who This Book Is For

IT professionals such as cloud architects, infrastructure administrators, and network/cloud operators

Table of Contents

Chapter 1: Introduction to Spring Boot

Chapter 2: Getting Started with Spring Boot

Chapter 3: Spring Boot Essentials

Chapter 4: Web Applications with Spring Boot

Chapter 5: Working with JDBC

Chapter 6: Working with MyBatis

Chapter 7: Working with JOOQ

Chapter 8: Working with JPA

Chapter 9: Working with MongoDB

Chapter 10: Building REST APIs Using Spring Boot

Chapter 11: Reactive Programming Using Spring WebFlux

Chapter 12: Securing Web Applications

Chapter 13: Spring Boot Actuator

Chapter 14: Testing Spring Boot Applications

Chapter 15: GraphQL with Spring Boot

Chapter 16: Deploying Spring Boot Applications

Chapter 17: Spring Boot Autoconfiguration

Chapter 18: Creating a Custom Spring Boot Starter

Chapter 19: Spring Boot with Kotlin, Scala, and Groovy .

Chapter 20: Introducing JHipster

Chapter 21: Spring Native

About the Author

Siva Prasad Reddy Katamareddy is a Software Architect with 16 years of experience in building scalable distributed enterprise applications. He has worked in banking and e-commerce domains using Java, Kotlin, GoLang, SpringBoot, JPA/Hibernate, MicroServices, REST APIs, SQL, and NoSQL Databases. His current technical focus is on modern architectures, including MicroServices, CI/CD, and DevOps, as well as infrastructure automation using Jenkins, Terraform, AWS CDK and Pulumi.

Sai Subramanyam Upadhyayula is a passionate software engineer who likes to share his knowledge about Java and Spring Boot through his blog and YouTube Channel, "Programming Techie." He has experience working with a variety of technologies, including Java, Kotlin, Typescript, Spring Boot, JPA/Hibernate, MongoDB, Angular, and Golang. He also dabbles with DevOps-related activities by working with Jenkins and AWS.