[Solved] Identify the error in this Spring Boot controller method intended to delete a user by ID:@DeleteMapping("/users") public void deleteUser(@PathVariable int id) { userService.deleteById(id); } | Spring Boot

Spring Boot - REST Controllers

Identify the error in this Spring Boot controller method intended to delete a user by ID:

@DeleteMapping("/users")
public void deleteUser(@PathVariable int id) {
    userService.deleteById(id);
}

AThe URL does not include the path variable placeholder {id}

BThe method should use @RequestParam instead of @PathVariable

CThe method should return a value instead of void

DThe @DeleteMapping annotation is missing

Step-by-Step Solution

Solution:

Step 1: Check URL and method parameters
The method expects @PathVariable int id but URL is "/users" without {id} placeholder.
Step 2: Understand path variable binding
Without {id} in URL, Spring cannot bind path variable, causing error.
Final Answer:
The URL does not include the path variable placeholder {id} -> Option A
Quick Check:
Path variable needs matching {id} in URL [OK]

Quick Trick: Match @PathVariable with {id} in URL path [OK]

Common Mistakes:

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