地图键codeofproduct包含点，但未配置替换！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：映射键foo.bar.key包含点但未配置替换！确保地图键首先不包含点或配置适当的替换！ 在org.springframework.data.mongodb.core.convert.MappingMongoConverter.potentiallyEscapeMapKey（MappingMongoConverter.java:622） 在org.springframework.data.mongodb.core.convert.MappingMongoConverter.writeMapInternal（MappingMongoConverter.java:586） 在org.springframework.data.mongodb.core.convert.MappingMongoConverter.createMap（MappingMongoConverter.java:517） 在org.springframework.data.mongodb.core.convert.MappingMongoConverter.writePropertyInternal（MappingMongoConverter.java:424） 在org.springframework.data.mongodb.core.convert.MappingMongoConverter $ 3.doWithPersistentProperty（MappingMongoConverter.java:386） 在org.springframework.data.mongodb.core.convert.MappingMongoConverter $ 3.doWithPersistentProperty（MappingMongoConverter.java:373） 在org.springframework.data.mapping.model.BasicPersistentEntity.doWithProperties（BasicPersistentEntity.java:257） 在org.springframework.data.mongodb.core.convert.MappingMongoConverter.writeInternal（MappingMongoConverter.java:373） 在org.springframework.data.mongodb.core.convert.MappingMongoConverter.writePropertyInternal（MappingMongoConverter.java:451） 在org.springframework.data.mongodb.core.convert.MappingMongoConverter $ 3.doWithPersistentProperty（MappingMongoConverter.java:386） 在org.springframework.data.mongodb.core.convert.MappingMongoConverter $ 3.doWithPersistentProperty（MappingMongoConverter.java:373） 在org.springframework.data.mapping.model.BasicPersistentEntity.doWithProperties（BasicPersistentEntity.java:257） 在org.springframework.data.mongodb.core.convert.MappingMongoConverter.writeInternal（MappingMongoConverter.java:373） 在org.springframework.data.mongodb.core.convert.MappingMongoConverter.writePropertyInternal（MappingMongoConverter.java:451） 在org.springframework.data.mongodb.core.convert.MappingMongoConverter $ 3.doWithPersistentProperty（MappingMongoConverter.java:386） 在org.springframework.data.mongodb.core.convert.MappingMongoConverter $ 3.doWithPersistentProperty（MappingMongoConverter.java:373） 在org.springframework.data.mapping.model.BasicPersistentEntity.doWithProperties（BasicPersistentEntity.java:257） 在org.springframework.data.mongodb.core.convert.MappingMongoConverter.writeInternal（MappingMongoConverter.java:373） 在org.springframework.data.mongodb.core.convert.MappingMongoConverter.writeInternal（MappingMongoConverter.java:345） 在org.springframework.data.mongodb.core.convert.MappingMongoConverter.write（MappingMongoConverter.java:310） 在org.springframework.data.mongodb.core.convert.MappingMongoConverter.write（MappingMongoConverter.java:77） 在org.springframework.data.mongodb.core.MongoTemplate.doSave（MongoTemplate.java:859） 在org.springframework.data.mongodb.core.MongoTemplate.save（MongoTemplate.java:806） 在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。我们怎样解决这个问题？
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();
}
}
答案 0 :(得分：6)
使用Spring Data MongoDB时，您会得到一个：org.springframework.data.mongodb.core.convert.MappingMongoConverter的实例，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，或者只需使用其提供者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;
}
答案 1 :(得分：4)
我的例外：
IndexError Traceback (most recent call last)
<ipython-input-35-f0c57ab3748f> in <module>
----> 1 learn.fit(30,1e-2)
/mnt/c/fastai2/fastai2/learner.py in fit(self, n_epoch, lr, wd, cbs, reset_opt)
191 self.epoch=epoch; self('begin_epoch')
192 self._do_epoch_train()
--> 193 self._do_epoch_validate()
194 except CancelEpochException: self('after_cancel_epoch')
195 finally: self('after_epoch')
/mnt/c/fastai2/fastai2/learner.py in _do_epoch_validate(self, ds_idx, dl)
173 dl,old,has = change_attrs(dl, names, [False,False])
174 self.dl = dl; self('begin_validate')
--> 175 with torch.no_grad(): self.all_batches()
176 except CancelValidException: self('after_cancel_validate')
177 finally:
/mnt/c/fastai2/fastai2/learner.py in all_batches(self)
141 def all_batches(self):
142 self.n_iter = len(self.dl)
--> 143 for o in enumerate(self.dl): self.one_batch(*o)
144
145 def one_batch(self, i, b):
/mnt/c/fastai2/fastai2/learner.py in one_batch(self, i, b)
149 self.pred = self.model(*self.xb); self('after_pred')
150 if len(self.yb) == 0: return
--> 151 self.loss = self.loss_func(self.pred, *self.yb); self('after_loss')
152 if not self.training: return
153 self.loss.backward(); self('after_backward')
/mnt/c/fastai2/fastai2/layers.py in __call__(self, inp, targ, **kwargs)
291 if targ.dtype in [torch.int8, torch.int16, torch.int32]: targ = targ.long()
292 if self.flatten: inp = inp.view(-1,inp.shape[-1]) if self.is_2d else inp.view(-1)
--> 293 return self.func.__call__(inp, targ.view(-1) if self.flatten else targ, **kwargs)
294
295 # Cell
~/anaconda3/envs/py3/lib/python3.6/site-packages/torch/nn/modules/module.py in __call__(self, *input, **kwargs)
530 result = self._slow_forward(*input, **kwargs)
531 else:
--> 532 result = self.forward(*input, **kwargs)
533 for hook in self._forward_hooks.values():
534 hook_result = hook(self, input, result)
~/anaconda3/envs/py3/lib/python3.6/site-packages/torch/nn/modules/loss.py in forward(self, input, target)
914 def forward(self, input, target):
915 return F.cross_entropy(input, target, weight=self.weight,
--> 916 ignore_index=self.ignore_index, reduction=self.reduction)
917
918
~/anaconda3/envs/py3/lib/python3.6/site-packages/torch/nn/functional.py in cross_entropy(input, target, weight, size_average, ignore_index, reduce, reduction)
2019 if size_average is not None or reduce is not None:
2020 reduction = _Reduction.legacy_get_string(size_average, reduce)
-> 2021 return nll_loss(log_softmax(input, 1), target, weight, None, ignore_index, None, reduction)
2022
2023
~/anaconda3/envs/py3/lib/python3.6/site-packages/torch/nn/functional.py in nll_loss(input, target, weight, size_average, ignore_index, reduce, reduction)
1836 .format(input.size(0), target.size(0)))
1837 if dim == 2:
-> 1838 ret = torch._C._nn.nll_loss(input, target, weight, _Reduction.get_enum(reduction), ignore_index)
1839 elif dim == 4:
1840 ret = torch._C._nn.nll_loss2d(input, target, weight, _Reduction.get_enum(reduction), ignore_index)
IndexError: Target -1 is out of bounds.
结尾处带点的字段：org.springframework.data.mapping.MappingException: Map key VAT Registration No. contains dots but no replacement was configured! Make sure map keys don't contain dots in the first place or configure an appropriate replacement!
这对我不起作用：
VAT Registration No.这对我有用：
mongoConverter.setMapKeyDotReplacement(".");
mongoConverter.setMapKeyDotReplacement("_"); //this broke enum values for example VALUE_1 -> VALUE.1
完成课程：
mongoConverter.setMapKeyDotReplacement("-DOT")
答案 2 :(得分：0)
对于XML配置，以下内容非常有用。
注意：mongoConverter bean用于此目的。它将取代“。”用“_”
键<bean id="mappingContext" class="org.springframework.data.mongodb.core.mapping.MongoMappingContext" />
<mongo:auditing mapping-context-ref="mappingContext"/>
<mongo:db-factory id="mongoDbFactory" mongo-ref="mongoClient" dbname="${mongo.dbname}"/>
<bean id ="mongoConverter" class="org.springframework.data.mongodb.core.convert.MappingMongoConverter">
<constructor-arg name="mongoDbFactory" ref="mongoDbFactory"/>
<constructor-arg name="mappingContext" ref="mappingContext"/>
<property name="mapKeyDotReplacement" value="_"></property>
</bean>
<mongo:mongo-client id="mongoClient" credentials="${mongo.credential}" >
<mongo:client-options connections-per-host="50" threads-allowed-to-block-for-connection-multiplier="5000" />
</mongo:mongo-client>
<!-- MongoDB Template -->
<bean id="mongoTemplate" class="org.springframework.data.mongodb.core.MongoTemplate">
<constructor-arg name="mongoDbFactory" ref="mongoDbFactory"/>
<constructor-arg name="mongoConverter" ref="mongoConverter"/>
</bean>