Introduction

When I was first starting out my career as a developer, I often saw annotations @Validated and @Valid applied on the method parameters in controllers. Some people used @Validated, while others preferred @Valid. I was often confused which annotation to use and when. In this article I hope to explain the difference between them once and for all, as best as I can.

Bean Validation with Spring

Input Validation in a Spring Controller

Request Body Validation

Request Parameters and Path Variables Validation

Validation Groups

Key takeaways

#spring #spring-framework #spring-boot #validation