spring – MongoDB-Escape dots’.’在地图键]
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内容图文
地图密钥codeofproduct包含点,但没有配置替换！确保地图键首先不包含点或配置适当的替换！
org.springframework.data.mapping.model.MappingException: Map key foo.bar.key contains dots but no replacement was configured! Make sure map keys don’t contain dots in the first place or configure an appropriate replacement!
at org.springframework.data.mongodb.core.convert.MappingMongoConverter.potentiallyEscapeMapKey(MappingMongoConverter.java:622)
at org.springframework.data.mongodb.core.convert.MappingMongoConverter.writeMapInternal(MappingMongoConverter.java:586)
at org.springframework.data.mongodb.core.convert.MappingMongoConverter.createMap(MappingMongoConverter.java:517)
at org.springframework.data.mongodb.core.convert.MappingMongoConverter.writePropertyInternal(MappingMongoConverter.java:424)
at org.springframework.data.mongodb.core.convert.MappingMongoConverter$3.doWithPersistentProperty(MappingMongoConverter.java:386)
at org.springframework.data.mongodb.core.convert.MappingMongoConverter$3.doWithPersistentProperty(MappingMongoConverter.java:373)
at org.springframework.data.mapping.model.BasicPersistentEntity.doWithProperties(BasicPersistentEntity.java:257)
at org.springframework.data.mongodb.core.convert.MappingMongoConverter.writeInternal(MappingMongoConverter.java:373)
at org.springframework.data.mongodb.core.convert.MappingMongoConverter.writePropertyInternal(MappingMongoConverter.java:451)
at org.springframework.data.mongodb.core.convert.MappingMongoConverter$3.doWithPersistentProperty(MappingMongoConverter.java:386)
at org.springframework.data.mongodb.core.convert.MappingMongoConverter$3.doWithPersistentProperty(MappingMongoConverter.java:373)
at org.springframework.data.mapping.model.BasicPersistentEntity.doWithProperties(BasicPersistentEntity.java:257)
at org.springframework.data.mongodb.core.convert.MappingMongoConverter.writeInternal(MappingMongoConverter.java:373)
at org.springframework.data.mongodb.core.convert.MappingMongoConverter.writePropertyInternal(MappingMongoConverter.java:451)
at org.springframework.data.mongodb.core.convert.MappingMongoConverter$3.doWithPersistentProperty(MappingMongoConverter.java:386)
at org.springframework.data.mongodb.core.convert.MappingMongoConverter$3.doWithPersistentProperty(MappingMongoConverter.java:373)
at org.springframework.data.mapping.model.BasicPersistentEntity.doWithProperties(BasicPersistentEntity.java:257)
at org.springframework.data.mongodb.core.convert.MappingMongoConverter.writeInternal(MappingMongoConverter.java:373)
at org.springframework.data.mongodb.core.convert.MappingMongoConverter.writeInternal(MappingMongoConverter.java:345)
at org.springframework.data.mongodb.core.convert.MappingMongoConverter.write(MappingMongoConverter.java:310)
at org.springframework.data.mongodb.core.convert.MappingMongoConverter.write(MappingMongoConverter.java:77)
at org.springframework.data.mongodb.core.MongoTemplate.doSave(MongoTemplate.java:859)
at org.springframework.data.mongodb.core.MongoTemplate.save(MongoTemplate.java:806)
at org.springframework.data.mongodb.core.MongoTemplate.save(MongoTemplate.java:794)
当我们尝试插入值时,会发生这种情况.我们怎么解决这个问题？
这是我的班级
@Configuration
@EnableMongoRepositories("net.ooo.hepsiburada.**.repository")
@Profile(Constants.SPRING_PROFILE_CLOUD)
public class CloudMongoDbConfiguration extends AbstractMongoConfiguration {
private final Logger log = LoggerFactory.getLogger(CloudDatabaseConfiguration.class);
@Inject
private MongoDbFactory mongoDbFactory;
@Bean
public ValidatingMongoEventListener validatingMongoEventListener() {
return new ValidatingMongoEventListener(validator());
}
@Bean
public LocalValidatorFactoryBean validator() {
return new LocalValidatorFactoryBean();
}
@Bean
public CustomConversions customConversions() {
List<Converter<?, ?>> converterList = new ArrayList<>();;
converterList.add(DateToZonedDateTimeConverter.INSTANCE);
converterList.add(ZonedDateTimeToDateConverter.INSTANCE);
converterList.add(DateToLocalDateConverter.INSTANCE);
converterList.add(LocalDateToDateConverter.INSTANCE);
converterList.add(DateToLocalDateTimeConverter.INSTANCE);
converterList.add(LocalDateTimeToDateConverter.INSTANCE);
return new CustomConversions(converterList);
}
@Override
protected String getDatabaseName() {
return mongoDbFactory.getDb().getName();
}
@Override
public Mongo mongo() throws Exception {
return mongoDbFactory().getDb().getMongo();
}
}
解决方法:
使用Spring Data MongoDB时,您会得到一个实例：org.springframework.data.mongodb.core.convert.MappingMongoConverter,默认情况下mapKeyDotReplacement设置为null – 这就是您获得异常的原因.
您需要创建自己的org.springframework.data.mongodb.core.convert.MappingMongoConverter实例,或者只使用其提供者setter方法修改现有实例：
/**
* 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;
}
在MongoDB中,dot始终被视为一个特殊字符,因此避免使用它很可能会在将来为您节省一些其他麻烦.
编辑：
要覆盖默认的MappingMongoConverter,请添加以下bean声明：
@Bean
public MappingMongoConverter mongoConverter(MongoDbFactory mongoFactory) throws Exception {
DbRefResolver dbRefResolver = new DefaultDbRefResolver(mongoFactory);
MappingMongoConverter mongoConverter = new MappingMongoConverter(dbRefResolver, mongoMappingContext);
mongoConverter.setMapKeyDotReplacement(".");
return mongoConverter;
}
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