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Learning Spring Boot 2.0

You're reading from   Learning Spring Boot 2.0 Simplify the development of lightning fast applications based on microservices and reactive programming

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Product type Paperback
Published in Nov 2017
Publisher Packt
ISBN-13 9781786463784
Length 370 pages
Edition 2nd Edition
Languages
Tools
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Author (1):
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Greg L. Turnquist Greg L. Turnquist
Author Profile Icon Greg L. Turnquist
Greg L. Turnquist
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Table of Contents (11) Chapters Close

Preface 1. Quick Start with Java FREE CHAPTER 2. Reactive Web with Spring Boot 3. Reactive Data Access with Spring Boot 4. Testing with Spring Boot 5. Developer Tools for Spring Boot Apps 6. AMQP Messaging with Spring Boot 7. Microservices with Spring Boot 8. WebSockets with Spring Boot 9. Securing Your App with Spring Boot 10. Taking Your App to Production with Spring Boot

Using Spring Boot's DevTools for hot code reloading

Developers are always looking for ways to speed things up. Long ago, one of the biggest speedups was incremental compilers and having them run every time we saved a file. Now that it's permeated modern tools, no one thinks twice about such a feature.

Something critically needed when it comes to building Spring Boot apps is the ability to detect a change in our code and relaunch the embedded container.

Thankfully, we just need one addition to our code we built in the previous chapter:

    compile("org.springframework.boot:spring-boot-devtools") 
If you happen to be using Maven, you would want to include the optional flag.

So, this tiny module performs the following activities:

  • Disables cache settings for autoconfigured components
  • When it detects a change in code, it restarts the application, holding onto third...
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