MongoDB _class 필드 제거하기

MongoDB 사용시, SpringBoot 자동설정을 이용할 경우 아래와 같이 _class 에 Entity Class 의 package 정보가 함께 저장됩니다.

이 부분을 제거하기 위해서는 DefaultMongoTypeMapper 설정을 변경하면 됩니다.

{
  "_id" : NumberLong(112),
  "name" : "마샤",
  "tags" : [ 
    "여자캐릭터",
    "흑마법사"
  ],
  "_class" : "com.company.model.entity.Actor"
}

 

자동설정 소스코드 org.springframework.boot.autoconfigure.data.mongo.MongoDataAutoConfiguration 참고

@Bean
@ConditionalOnMissingBean({MongoConverter.class})
public MappingMongoConverter mappingMongoConverter(MongoDbFactory factory, MongoMappingContext context, MongoCustomConversions conversions) {
  DbRefResolver dbRefResolver = new DefaultDbRefResolver(factory);
  MappingMongoConverter mappingConverter = new MappingMongoConverter(dbRefResolver, context);
  mappingConverter.setCustomConversions(conversions);
  return mappingConverter;
}

 

변경 후 ( 설정 추가: mappingConverter.setTypeMapper(new DefaultMongoTypeMapper(null)); )

@Configuration
public class MongoConfiguration {
  @Bean
  @ConditionalOnMissingBean(MongoConverter.class)
  public MappingMongoConverter mappingMongoConverter(MongoDbFactory factory,
                                                   MongoMappingContext context, MongoCustomConversions conversions) {
    DbRefResolver dbRefResolver = new DefaultDbRefResolver(factory);
    MappingMongoConverter mappingConverter = new MappingMongoConverter(dbRefResolver, context);
    mappingConverter.setCustomConversions(conversions);
    mappingConverter.setTypeMapper(new DefaultMongoTypeMapper(null));
    return mappingConverter;
    }
}