Spring Boot·Spring Boot essentials

Validation

Bean validation annotations enforce input rules.

Advanced 10 min read Lesson 4 of 150 Challenge included
What you will be able to do
  • Use @Valid on bodies.
  • Add @NotBlank and @Size.
  • Return 400 on violations.

In plain English

Bean validation annotations enforce input rules.

  • Use @Valid on bodies.
  • Add @NotBlank and @Size.
  • Return 400 on violations.
CourseDto.javaJava
public record CourseDto(
  @NotBlank @Size(max = 80) String slug,
  @NotBlank String title
) {}
Your turn

Explain it back

Easy

Answer from memory: Which annotation triggers validation of a request body?

TEXT · starter
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Knowledge checkQuestion 1

Which annotation triggers validation of a request body?

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Lesson 4 of 150 · 0% of course