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May 23, 2023 · Backend Development

Understanding @NotNull, @NotBlank, @NotEmpty and the Difference Between @Valid and @Validated in Spring Boot

This article explains how to import validation dependencies in Spring Boot, compares the semantics of @NotNull, @NotBlank, and @NotEmpty annotations, demonstrates their usage with code examples, and clarifies the behavioral differences between @Valid and @Validated when validating controller inputs.