[Solved] Which of the following is the correct way to declare a REST controller class in Spring Boot? — Ans: @RestController public class MyController { @GetMapping("/test") public String... | Spring Boot

Spring Boot - REST Controllers

Which of the following is the correct way to declare a REST controller class in Spring Boot?

A

<pre>@Controller
public class MyController {
  public String test() {
    return "OK";
  }
}</pre>

B

<pre>@RestController
public class MyController {
  @GetMapping("/test")
  public String test() {
    return "OK";
  }
}</pre>

C

<pre>@Service
public class MyController {
  @GetMapping("/test")
  public String test() {
    return "OK";
  }
}</pre>

D

<pre>@Repository
public class MyController {
  @GetMapping("/test")
  public String test() {
    return "OK";
  }
}</pre>

Step-by-Step Solution

Solution:

Step 1: Identify the correct annotation
To create a REST controller, the class must be annotated with @RestController.
Step 2: Check method mapping
The method handling HTTP GET requests should be annotated with @GetMapping and return a response body.
Step 3: Verify method signature
The method returns a String which will be sent as the HTTP response body.

Final Answer:

@RestController public class MyController { @GetMapping("/test") public String test() { return "OK"; } }
correctly declares a REST controller with proper mapping and return type.

Quick Check:
Ensure @RestController and @GetMapping are used together [OK]

Quick Trick: Use @RestController with @GetMapping for REST endpoints [OK]

Common Mistakes:

Using @Controller without @ResponseBody for REST
Annotating with @Service or @Repository instead of @RestController
Missing @GetMapping on methods

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More Spring Boot Quizzes

Which of the following is the correct way to declare a REST controller class in Spring Boot?

Step 1: Identify the correct annotation

Step 2: Check method mapping

Step 3: Verify method signature

Final Answer:

Quick Check:

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