Spring boot validation annotations @Valid and @NotBlank not working
For Anyone who is getting this issue with 2.0.1.Final:
In all SpringBoot versions above 2.2, Validations starter is not a part of web starter anymore
Check Notes here
So, all you have to do is add this dependency in your build.gradle/pom file
GRADLE:
implementation 'org.springframework.boot:spring-boot-starter-validation'
MAVEN
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-validation</artifactId>
</dependency>
If you are facing this problem in latest version of spring boot (2.3.0) make sure to add the following dependency:
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-validation</artifactId>
</dependency>
Observation:
In earlier version of Spring Boot (1.4.7), javax.validation
used to work out of the box. But, after upgrading to latest version, annotations broke. Adding the following dependency alone doesn't work:
<dependency>
<groupId>javax.validation</groupId>
<artifactId>validation-api</artifactId>
</dependency>
Because this provides JSR Specification but not the implementation. You can also use hibernate-validator
instead of spring-boot-starter-validation
.