[Solved] What is wrong with this controller code? @RestController @RequestMapping("/api") public class DemoController { @RequestMapping public String home() { return "Home"; } } | Spring Boot

Spring Boot - REST Controllers

What is wrong with this controller code?

 @RestController
 @RequestMapping("/api")
 public class DemoController {
   @RequestMapping
   public String home() { return "Home"; }
 }

AClass-level @RequestMapping should specify HTTP method

BController class missing @Component annotation

CMethod must have @GetMapping instead of @RequestMapping

DMethod-level @RequestMapping missing path, defaults to base path

Step-by-Step Solution

Solution:

Step 1: Analyze method-level @RequestMapping without path
When no path is specified, the method maps to the base path defined at class level.
Step 2: Confirm if this is valid
This is valid and means the method handles requests to "/api".
Final Answer:
Method-level @RequestMapping missing path, defaults to base path -> Option D
Quick Check:
Empty method path means base path used [OK]

Quick Trick: Empty method path means base path used [OK]

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What is wrong with this controller code?