Spring boot starter data rest, @Notnull constraint not working
12,258
Solution 1
I had the same problem, but just enabling validation didn't work for me, this did work with both JPA and MongoDb to save anyone else spending ages on this. Not only does this get validation working but I get a nice restful 400 error rather than the default 500.
Had to add this to my build.gradle dependencies
compile('org.hibernate:hibernate-validator:4.2.0.Final')
and this config class
@Configuration
public class CustomRepositoryRestConfigurerAdapter extends RepositoryRestConfigurerAdapter {
@Bean
public Validator validator() {
return new LocalValidatorFactoryBean();
}
@Override
public void configureValidatingRepositoryEventListener(ValidatingRepositoryEventListener validatingListener) {
validatingListener.addValidator("afterCreate", validator());
validatingListener.addValidator("beforeCreate", validator());
validatingListener.addValidator("afterSave", validator());
validatingListener.addValidator("beforeSave", validator());
}
}
Solution 2
i found it better to make my own version of @NotNull annotation which validates empty string as well.
@Documented
@Constraint(validatedBy = NotEmptyValidator.class)
@Target({ElementType.METHOD, ElementType.FIELD})
@Retention(RetentionPolicy.RUNTIME)
public @interface NotEmpty {
String message() default "{validator.notEmpty}";
Class<?>[] groups() default {};
Class<? extends Payload>[] payload() default {};
}
public class NotEmptyValidator implements ConstraintValidator<NotEmpty, Object> {
@Override
public void initialize(NotEmpty notEmpty) { }
@Override
public boolean isValid(Object obj, ConstraintValidatorContext cxt) {
return obj != null && !obj.toString().trim().equals("");
}
}
Author by
oxyt
Updated on June 14, 2022Comments
-
oxyt almost 2 years
I am trying to add @NotNull constraint into my Person object but I still can @POST a new Person with a null email. I am using Spring boot rest with MongoDB.
Entity class:
import javax.validation.constraints.NotNull; public class Person { @Id private String id; private String username; private String password; @NotNull // <-- Not working private String email; // getters & setters }
Repository class:
@RepositoryRestResource(collectionResourceRel = "people", path = "people") public interface PersonRepository extends MongoRepository<Person, String> { }
Application class:
@SpringBootApplication public class TalentPoolApplication { public static void main(String[] args) { SpringApplication.run(TalentPoolApplication.class, args); } }
pom.xml
... <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>1.4.0.BUILD-SNAPSHOT</version> <relativePath/> <!-- lookup parent from repository --> </parent> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <java.version>1.8</java.version> </properties> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-mongodb</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-rest</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> </dependencies> ...
When I @POST a new object via Postman like:
{ "username": "deadpool", "email": null }
I still get
STATUS 201
created with this payload:{ "username": "deadpool", "password": null, "email": null .... .... }