更新数据库后运行的PUT和PATCH的Spring数据剩余验证 [英] Spring data rest validation for PUT and PATCH running after DB update

问题描述

我有一个SDR项目，我已经成功验证了POST请求的用户实体，但是一旦我使用PATCH或PUT更新了现有实体，就在执行验证之前就更新了数据库(验证器正在执行，并且错误返回，但无论如何都在更新数据库).

I have a SDR project and I am successfully validating the user entity for POST request but as soon as I update an existing entity using either PATCH or PUT the DB is updated BEFORE the validation is executed (the validator is being executed and error is returned but the DB is being updated anyway).

我需要为更新设置单独的配置吗?我是否为此错过了额外的步骤?

Do I need to setup a separate config for update ? Am I missing an extra step for that?

@Entity
@JsonIgnoreProperties(ignoreUnknown = true)
public class Member {

    @GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "member_id_gen")
    @SequenceGenerator(name = "member_id_gen", sequenceName = "member_id_seq")
    @Id
    @JsonIgnore
    private long id;

    @Version
    private Integer version;

    @NotNull
    protected String firstName;
    @NotNull
    protected String lastName;

    @Valid
    protected String email;

}

存储库

@RepositoryRestResource(collectionResourceRel = "members", path = "member")
public interface MemberRepository extends PagingAndSortingRepository<Member, Long>  {

     public Member findByFirstName(String firstName); 

     public Member findByLastName(String lastName); 

}

Validator

@Component
public class BeforeSaveMemberValidator implements Validator {

    public BeforeSaveMemberValidator() {}

    private String EMAIL_REGEX = "^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\\.[a-zA-Z]{2,6}$";

    @Override
    public boolean supports(Class<?> clazz) {
        return Member.class.equals(clazz);
    }

    @Override
    public void validate(Object target, Errors errors) {
        Member member = (Member) target;

        if(ObjectUtils.isEmpty(member.getFirstName())) {
            errors.rejectValue("firstName", "member.firstName.empty");
        }

        if(ObjectUtils.isEmpty(member.getLastName())) {
            errors.rejectValue("lastName", "member.lastName.empty");
        }

        if(!ObjectUtils.isEmpty(member.getDni()) && !member.getDni().matches("^[a-zA-Z0-9]*$")) {
            errors.rejectValue("dni", "member.dni.invalid");
        }

        if(!ObjectUtils.isEmpty(member.getEmail()) && !member.getEmail().matches(EMAIL_REGEX)) {
            errors.rejectValue("email", "member.email.notValid");
        }
    }
}

BeforeSave服务

@Service
@RepositoryEventHandler(Member.class)
public class MemberService {

    @HandleBeforeCreate
    @HandleBeforeSave
    @Transactional
    public void beforeCreate(Member member) {
        ...
    }

}

推荐答案

例如，我认为您应该将验证器重命名为MemberValidator，然后按照

I think you should rename your validator, for example, to MemberValidator then assign it as described here:

@Override
protected void configureValidatingRepositoryEventListener(ValidatingRepositoryEventListener v) {
  v.addValidator("beforeCreate", new MemberValidator());
  v.addValidator("beforeSave", new MemberValidator());
}

但是我建议您使用

But I suggest you to use Bean validation instead of your custom validators. To use it in SDR project you can inject LocalValidatorFactoryBean, then assign it for 'beforeCreate' and 'beforeSave' events in configureValidatingRepositoryEventListener:

@Configuration
@RequiredArgsConstructor // Lombok annotation
public class RepoRestConfig extends RepositoryRestConfigurerAdapter {

    @NonNull private final LocalValidatorFactoryBean validatorFactoryBean;

    @Override
    public void configureValidatingRepositoryEventListener(ValidatingRepositoryEventListener v) {
        v.addValidator("beforeCreate", validatorFactoryBean);
        v.addValidator("beforeSave", validatorFactoryBean);
        super.configureValidatingRepositoryEventListener(v);
    }
}

在这种情况下，您的SDR将自动验证所有公开的SDR存储库的POST，PUT和PATCH请求的有效负载.

In this case your SDR will automatically validate payloads of POST, PUT and PATCH requests for all exposed SDR repositories.

有关更多详细信息，请参见我的示例.

See my example for more details.

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