[Solved] Given the following code, what will be the output when accessing /hello endpoint?... Given the following code, what will be the output when accessing /hello endpoint? | Spring Boot

Spring Boot - REST Controllers

Given the following code, what will be the output when accessing /hello endpoint?

@RestController
public class HelloController {
    @GetMapping("/hello")
    public String sayHello() {
        return "Hello, Spring!";
    }
}

AAn HTML page displaying "Hello, Spring!"

BA plain text response with the string "Hello, Spring!"

CA 404 Not Found error

DA compilation error due to missing annotations

Step-by-Step Solution

Solution:

Step 1: Understand @RestController behavior
@RestController returns the method's return value directly as the response body, usually JSON or plain text.
Step 2: Analyze the method return
The method returns a String "Hello, Spring!" which will be sent as plain text in the response body.
Final Answer:
A plain text response with the string "Hello, Spring!" -> Option B
Quick Check:
@RestController + String return = plain text response [OK]

Quick Trick: @RestController returns method data as response body [OK]

Common Mistakes:

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Given the following code, what will be the output when accessing /hello endpoint?