MongoDB-Escape prikker '.' i kortnøgle]

Når du bruger Spring Data MongoDB får du en instans af:org.springframework.data.mongodb.core.convert.MappingMongoConverter der har mapKeyDotReplacement sat til null som standard - det er derfor, du får en undtagelse.

Du skal enten oprette din egen forekomst af org.springframework.data.mongodb.core.convert.MappingMongoConverter eller bare modificere eksisterende instans ved hjælp af dens provider-indstillermetode:

/**
 * Configure the characters dots potentially contained in a {@link Map} shall be replaced with. By default we don't do
 * any translation but rather reject a {@link Map} with keys containing dots causing the conversion for the entire
 * object to fail. If further customization of the translation is needed, have a look at
 * {@link #potentiallyEscapeMapKey(String)} as well as {@link #potentiallyUnescapeMapKey(String)}.
 * 
 * @param mapKeyDotReplacement the mapKeyDotReplacement to set
 */
public void setMapKeyDotReplacement(String mapKeyDotReplacement) {
    this.mapKeyDotReplacement = mapKeyDotReplacement;
}

I MongoDB behandles prik altid som et specialtegn, så at undgå det vil højst sandsynligt spare dig for anden hovedpine i fremtiden.

EDIT:For at tilsidesætte standard MappingMongoConverter tilføje følgende bønnedeklaration:

  @Bean
  public MappingMongoConverter mongoConverter(MongoDbFactory mongoFactory) throws Exception {
    DbRefResolver dbRefResolver = new DefaultDbRefResolver(mongoFactory);
    MappingMongoConverter mongoConverter = new MappingMongoConverter(dbRefResolver, mongoMappingContext);
    mongoConverter.setMapKeyDotReplacement(".");

    return mongoConverter;
  }