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Spring Boot·Spring Boot essentials

Controllers

Controllers map HTTP routes to methods.

Advanced 10 min read Lesson 2 of 150 Challenge included
What you will be able to do
  • Use @RestController.
  • Map with @GetMapping.
  • Return objects as JSON.

In plain English

Controllers map HTTP routes to methods.

  • Use @RestController.
  • Map with @GetMapping.
  • Return objects as JSON.
CourseController.javaJava
@RestController
@RequestMapping("/api/courses")
public class CourseController {
  @GetMapping
  public List<Course> list() {
    return List.of(new Course("css", "CSS"));
  }
}
Your turn

Explain it back

Easy

Answer from memory: Which annotation marks a JSON controller?

TEXT · starter
Your answer…
Check your understanding before moving on.
Knowledge checkQuestion 1

Which annotation marks a JSON controller?

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