Cuando usa Spring Data MongoDB, obtiene una instancia de:org.springframework.data.mongodb.core.convert.MappingMongoConverter
que tiene mapKeyDotReplacement
establecido en nulo de forma predeterminada; es por eso que obtiene una excepción.
Debe crear su propia instancia de org.springframework.data.mongodb.core.convert.MappingMongoConverter
o simplemente modifique la instancia existente utilizando su método de establecimiento de proveedores:
/**
* 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;
}
En MongoDB, el punto siempre se trata como un carácter especial, por lo que evitarlo probablemente le ahorrará otros dolores de cabeza en el futuro.
EDITAR:Para anular el MappingMongoConverter
predeterminado agregue la siguiente declaración de frijol:
@Bean
public MappingMongoConverter mongoConverter(MongoDbFactory mongoFactory) throws Exception {
DbRefResolver dbRefResolver = new DefaultDbRefResolver(mongoFactory);
MappingMongoConverter mongoConverter = new MappingMongoConverter(dbRefResolver, mongoMappingContext);
mongoConverter.setMapKeyDotReplacement(".");
return mongoConverter;
}