Part 2. Integrated Spring

The chapters in part 2 cover topics that help integrate your Spring application with other applications.

Chapter 7 expands on the discussion of Spring MVC started in chapter 2 by looking at how to write REST APIs in Spring. We’ll look at how to define REST endpoints in Spring MVC, automatically generate repository-based REST endpoints with Spring Data REST, and consume REST APIs. Chapter 8 looks at how to secure an API using Spring Security’s support for OAuth 2 as well as how to obtain authorization in client code that can access OAuth 2–secured APIs. In chapter 9, we’ll look at using asynchronous communication to enable a Spring application to both send and receive messages using the Java Message Service (JMS), RabbitMQ, and Kafka. And finally, chapter 10 discusses declarative application integration using the Spring Integration project. We’ll cover processing data in real time, defining integration flows, and integrating with external systems like emails and filesystems.