Spring Boot - Request and Response Handling
Which annotation is used to trigger validation on a request body object in a Spring Boot controller method?
Which annotation is used to trigger validation on a request body object in a Spring Boot controller method?
easy📝 Conceptual Q2 of 15
Step-by-Step Solution
Solution:
Step 1: Identify annotation for validation trigger
The@Validannotation triggers validation on the annotated object, such as a request body DTO.Step 2: Differentiate from other annotations
@RequestBodybinds the HTTP body to the object but does not trigger validation itself.Final Answer:
@Valid triggers validation on request body objects. -> Option DQuick Check:
@Valid triggers validation = C [OK]
Quick Trick: Use @Valid on request body to enable validation [OK]
Common Mistakes:
- Confusing @RequestBody with validation trigger
- Using @Autowired instead of validation annotations
- Thinking @ResponseBody triggers validation
Master "Request and Response Handling" in Spring Boot
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