spring validator

package javax.validation.constraints does not exist

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Below is a Spring Boot application and validation bean API example. GlobalProperties.java import javax.validation.constraints.Max; import javax.validation.constraints.Min; import javax.validation.constraints.NotEmpty; import org.springframework.boot.context.properties.ConfigurationProperties; import org.springframework.stereotype.Component; import org.springframework.validation.annotation.Validated; @Component @ConfigurationProperties @Validated public class GlobalProperties { //@Value("${thread-pool}") @Max(5) @Min(0) private int threadPool; Run the Spring Boot application and hits the following error: Terminal package javax.validation.constraints does not exist Solution – …

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Spring REST Validation Example

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In this article, we will enhance the previous Spring REST Hello World example, by adding bean validation and custom validator. Technologies used : Spring Boot 2.1.2.RELEASE Spring 5.1.4.RELEASE Maven 3 Java 8 1. Controller Review the previous REST Controller again : BookController.java package com.mkyong; import com.mkyong.error.BookNotFoundException; import com.mkyong.error.BookUnSupportedFieldPatchException; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.util.StringUtils; import org.springframework.web.bind.annotation.*; import …

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Combine Spring validator and Hibernate validator

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In this article, we will show you how to validate the submitted form values with Spring validator and Hibernate Validator (bean validation). Technologies used : Spring 4.1.6.RELEASE Hibernate Validator 5.1.3.Final 1. Hibernate Validator The Hibernate validator will be fired if @Valid is provided. import org.hibernate.validator.constraints.NotEmpty; public class User { @NotEmpty String name; //… } @RequestMapping(value …

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