Spring Boot - Request and Response Handling
What will be the output when a GET request is made to a Spring Boot controller method annotated with @GetMapping("/hello") that returns "Hello World"?
What will be the output when a GET request is made to a Spring Boot controller method annotated with @GetMapping("/hello") that returns "Hello World"?
medium📝 component behavior Q4 of 15
Step-by-Step Solution
Solution:
Step 1: Understand @GetMapping behavior
@GetMapping("/hello") maps GET requests to the method.Step 2: Check method return value
The method returns "Hello World", so that is the response body.Final Answer:
Hello World -> Option BQuick Check:
@GetMapping returns method string response [OK]
Quick Trick: GET request returns method's string response [OK]
Common Mistakes:
- Expecting 404 if mapping is correct
- Confusing HTTP method types causing 405 error
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