[Solved] What is wrong with this Spring Boot controller method that causes it to not handle requests properly? @GetMapping("/data") public void getData() { System.out.println("Data requested"); } | Spring Boot

Spring Boot - Request and Response Handling

What is wrong with this Spring Boot controller method that causes it to not handle requests properly?

@GetMapping("/data")
public void getData() {
    System.out.println("Data requested");
}

ASystem.out.println cannot be used inside controller methods.

BThe @GetMapping annotation is missing parentheses.

CThe method returns void, so no response is sent to the client.

DThe method should be private, not public.

Step-by-Step Solution

Solution:

Step 1: Check the method return type and response behavior
The method returns void and does not write to the response, so the client gets no content.
Step 2: Understand HTTP response requirements
Controllers must return a response body or view; void means no response, causing client issues.
Final Answer:
The method returns void, so no response is sent to the client. -> Option C
Quick Check:
Void return means no client response = D [OK]

Quick Trick: Controller methods must return response, not void [OK]

Common Mistakes:

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What is wrong with this Spring Boot controller method that causes it to not handle requests properly?