如何在arangodb-spring-data中启用javax.validation.constraints校验？

Absolutely! ArangoDB Spring Data does support JSR-380 validation (like @NotNull, @Size, etc.), but just adding the annotations won't work out of the box—you need to set up a validation listener similar to what you did for MongoDB, but with Arango-specific classes.

Here's the equivalent configuration class for ArangoDB:

@Configuration
public class ArangoValidationConfiguration {

    @Bean
    public ValidatingArangoEventListener validatingArangoEventListener() {
        return new ValidatingArangoEventListener(validator());
    }

    @Bean
    public LocalValidatorFactoryBean validator() {
        return new LocalValidatorFactoryBean();
    }
}

Let's break this down: #

• ValidatingArangoEventListener is the ArangoDB counterpart to ValidatingMongoEventListener. It hooks into entity lifecycle events (like before save/update) and triggers validation checks using the provided validator bean.
• LocalValidatorFactoryBean is the standard Spring bean that provides the core validation logic, using Hibernate Validator (the reference implementation for JSR-380) under the hood.

Don't forget the dependencies! #

Make sure you have the necessary validation libraries in your project:

• If using Spring Boot, add the starter dependency to your pom.xml (Maven):

  <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-validation</artifactId>
  </dependency>
  

  Or for Gradle:

  implementation 'org.springframework.boot:spring-boot-starter-validation'
  

• If you're not using Spring Boot, include hibernate-validator and its required dependencies directly.

Example usage #

Once the configuration is in place, you can use validation annotations on your ArangoDB entities like this:

@Document("users")
public class User {

    @Id
    private String id;

    @NotNull(message = "Username cannot be null")
    private String username;

    // Getters, setters, and other fields
}

Now, when you attempt to save a User with a null username, a ConstraintViolationException will be thrown automatically—just like you expect from Spring Data MongoDB's validation setup.

内容的提问来源于stack exchange，提问作者Federico Gatti