Spring Boot - DTO Validation with a Custom Annotation
In this section, we will learn how to create our own custom validator annotation in a simple Spring Boot application. * Note: This is solely a demonstration of DTO Validation with a Custom Annotation. Creating a spring boot application First, open the Spring initializr https://start.spring.io Then, Provide the Group and Artifact name. We have provided Group name com.knf.dev.demo and Artifact spring-boot-dto-validation-custom-annotation . Here I selected the Maven project - language Java 17 - Spring Boot 3.3.0 , Spring Web, and Validation . Then, click on the Generate button. When we click on the Generate button, it starts packing the project in a .zip( spring-boot-dto-validation-custom-annotation ) file and downloads the project. Then, Extract the Zip file. Then, import the project on your favourite IDE. Final Project Directory Complete pom.xml <? xml version ="1.0" encoding ="UTF-8" ?> < project xmlns ="http://maven.apache.org/POM/4.0.0&