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Learning Spring Boot 3.0

Learning Spring Boot 3.0

By : Greg L. Turnquist
3.4 (14)
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Learning Spring Boot 3.0

Learning Spring Boot 3.0

3.4 (14)
By: Greg L. Turnquist

Overview of this book

Spring Boot 3 brings more than just the powerful ability to build secure web apps on top of a rock-solid database. It delivers new options for testing, deployment, Docker support, and native images for GraalVM, along with ways to squeeze out more efficient usage of existing resources. This third edition of the bestseller starts off by helping you build a simple app, and then shows you how to secure, test, bundle, and deploy it to production. Next, you’ll familiarize yourself with the ability to go “native” and release using GraalVM. As you advance, you’ll explore reactive programming and get a taste of scalable web controllers and data operations. The book goes into detail about GraalVM native images and deployment, teaching you how to secure your application using both routes and method-based rules and enabling you to apply the lessons you’ve learned to any problem. If you want to gain a thorough understanding of building robust applications using the core functionality of Spring Boot, then this is the book for you. By the end of this Spring Boot book, you’ll be able to build an entire suite of web applications using Spring Boot and deploy them to any platform you need.
Table of Contents (17 chapters)
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1
Part 1: The Basics of Spring Boot
3
Part 2: Creating an Application with Spring Boot
8
Part 3: Releasing an Application with Spring Boot
12
Part 4: Scaling an Application with Spring Boot

Switching to YAML

Part of the Spring way is options. Developers have varying needs based on circumstances, and Spring tries to offer different ways to effectively get things done.

And sometimes, the number of property settings we need can explode. With the property file’s key/value paradigm, this can get unwieldy. In the previous section, where we had lists and complex values, it became clunky to have to specify index values.

YAML is a more succinct way to represent the same settings. Perhaps an example is in order. Create an application-alternate.yaml file in the src/main/resources folder, as shown here:

app:
  config:
    header: Greetings from YAML-based settings!
    intro: Check out this page hosted from YAML
    users:
      -
        username: yaml1
        password: password
 ...

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