MongoDB-Escape dot '.' di kunci peta]

Saat menggunakan Spring Data MongoDB Anda mendapatkan instance dari:org.springframework.data.mongodb.core.convert.MappingMongoConverter yang memiliki mapKeyDotReplacement setel ke null secara default - itulah sebabnya Anda mendapatkan pengecualian.

Anda harus membuat instance org.springframework.data.mongodb.core.convert.MappingMongoConverter Anda sendiri atau cukup ubah instance yang ada menggunakan metode penyetel penyedianya:

/**
 * 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;
}

Di MongoDB, titik selalu diperlakukan sebagai karakter khusus sehingga menghindarinya kemungkinan besar akan menyelamatkan Anda dari sakit kepala lain di masa mendatang.

EDIT:Untuk mengganti MappingMongoConverter default tambahkan deklarasi kacang berikut:

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

    return mongoConverter;
  }