Spring boot starter数据Rest，@NotNull约束不起作用

Question

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
}

@RepositoryRestResource(collectionResourceRel = "people", path = "people")
public interface PersonRepository extends MongoRepository<Person, String> {
}

@SpringBootApplication
public class TalentPoolApplication {
    public static void main(String[] args) {
        SpringApplication.run(TalentPoolApplication.class, args);
    }
}

...
<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>
...

当我通过邮递员发送一个新对象时，喜欢：

{
  "username": "deadpool",
  "email": null
}

我仍然得到使用此有效负载创建的状态201:

{
    "username": "deadpool",
    "password": null,
    "email": null
     ....
     ....
}

Answer 1

我也遇到了同样的问题，但是仅仅启用验证对我来说并不起作用，这在JPA和MongoDb中都起到了作用，从而节省了其他人在这方面花费的时间。这不仅使验证工作正常，而且我得到了一个很好的restful 400错误，而不是默认的500。

我不得不把这个添加到我的构建中。gradle依赖项

    compile('org.hibernate:hibernate-validator:4.2.0.Final')

而这个配置类

@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());
   }
}