org.springframework.data.mapping.MappingException: Map key xxx.yyyyy contains dots but no replacemen

org.springframework.data.mapping.MappingException: Map key xxx.yyyyy contains dots but no replacement was configured!

当map中key包含 "." 时，默认会抛出异常,需要显示的配置替换策略，可以在数据源配置里设置mapKeyDotReplacement的值

org.springframework.data.mapping.MappingException

mongoTemplate.save(map, "collectionName");
/**
 * 当map中key包含 "." 时，默认会抛出异常
 * org.springframework.data.mapping.MappingException: Map key xxx.yyyyy contains dots but no replacement was configured!
 */
org.springframework.data.mapping.MappingException: Map key xxx.yyyyy 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:760) ~[spring-data-mongodb-2.0.6.RELEASE.jar:2.0.6.RELEASE]
	at org.springframework.data.mongodb.core.convert.MappingMongoConverter.prepareMapKey(MappingMongoConverter.java:742) ~[spring-data-mongodb-2.0.6.RELEASE.jar:2.0.6.RELEASE]
	at org.springframework.data.mongodb.core.convert.MappingMongoConverter.writeMapInternal(MappingMongoConverter.java:709) ~[spring-data-mongodb-2.0.6.RELEASE.jar:2.0.6.RELEASE]
	at org.springframework.data.mongodb.core.convert.MappingMongoConverter.writeInternal(MappingMongoConverter.java:426) ~[spring-data-mongodb-2.0.6.RELEASE.jar:2.0.6.RELEASE]
	at org.springframework.data.mongodb.core.convert.MappingMongoConverter.writeMapInternal(MappingMongoConverter.java:719) ~[spring-data-mongodb-2.0.6.RELEASE.jar:2.0.6.RELEASE]
	at org.springframework.data.mongodb.core.convert.MappingMongoConverter.writeInternal(MappingMongoConverter.java:426) ~[spring-data-mongodb-2.0.6.RELEASE.jar:2.0.6.RELEASE]
	at org.springframework.data.mongodb.core.convert.MappingMongoConverter.writeMapInternal(MappingMongoConverter.java:719) ~[spring-data-mongodb-2.0.6.RELEASE.jar:2.0.6.RELEASE]
	at org.springframework.data.mongodb.core.convert.MappingMongoConverter.writeInternal(MappingMongoConverter.java:426) ~[spring-data-mongodb-2.0.6.RELEASE.jar:2.0.6.RELEASE]
	at org.springframework.data.mongodb.core.convert.MappingMongoConverter.writeMapInternal(MappingMongoConverter.java:719) ~[spring-data-mongodb-2.0.6.RELEASE.jar:2.0.6.RELEASE]
	at org.springframework.data.mongodb.core.convert.MappingMongoConverter.writeInternal(MappingMongoConverter.java:426) ~[spring-data-mongodb-2.0.6.RELEASE.jar:2.0.6.RELEASE]
	at org.springframework.data.mongodb.core.convert.MappingMongoConverter.write(MappingMongoConverter.java:391) ~[spring-data-mongodb-2.0.6.RELEASE.jar:2.0.6.RELEASE]
	at org.springframework.data.mongodb.core.convert.MappingMongoConverter.write(MappingMongoConverter.java:86) ~[spring-data-mongodb-2.0.6.RELEASE.jar:2.0.6.RELEASE]
	at org.springframework.data.mongodb.core.MongoTemplate.toDocument(MongoTemplate.java:1070) ~[spring-data-mongodb-2.0.6.RELEASE.jar:2.0.6.RELEASE]
	at org.springframework.data.mongodb.core.MongoTemplate.doSave(MongoTemplate.java:1253) ~[spring-data-mongodb-2.0.6.RELEASE.jar:2.0.6.RELEASE]
	at org.springframework.data.mongodb.core.MongoTemplate.save(MongoTemplate.java:1201) ~[spring-data-mongodb-2.0.6.RELEASE.jar:2.0.6.RELEASE]
	at com.paic.biz.docker.work.ServerStatusService$1.handleDelivery(ServerStatusService.java:83) [haiyoung-api-biz-0.0.1-SNAPSHOT.jar:?]
	at com.rabbitmq.client.impl.ConsumerDispatcher$5.run(ConsumerDispatcher.java:149) [amqp-client-5.1.2.jar:5.1.2]
	at com.rabbitmq.client.impl.ConsumerWorkService$WorkPoolRunnable.run(ConsumerWorkService.java:100) [amqp-client-5.1.2.jar:5.1.2]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [?:1.8.0_172]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [?:1.8.0_172]
	at java.lang.Thread.run(Unknown Source) [?:1.8.0_172]

MappingMongoConverter源码

org.springframework.data.mongodb.core.convert.MappingMongoConverter

protected @Nullable String mapKeyDotReplacement = null;
/**
 * 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. Can be {@literal null}.
 */
public void setMapKeyDotReplacement(@Nullable String mapKeyDotReplacement) {
    this.mapKeyDotReplacement = mapKeyDotReplacement;
}

/**
 * Potentially replaces dots in the given map key with the configured map key replacement if configured or aborts
 * conversion if none is configured.
 *
 * @see #setMapKeyDotReplacement(String)
 * @param source
 * @return
 */
protected String potentiallyEscapeMapKey(String source) {

    if (!source.contains(".")) {
        return source;
    }

    if (mapKeyDotReplacement == null) {
        throw new MappingException(String.format(
                "Map key %s contains dots but no replacement was configured! Make "
                        + "sure map keys don't contain dots in the first place or configure an appropriate replacement!",
                source));
    }

    return source.replaceAll("\\.", mapKeyDotReplacement);
}

/**
 * Translates the map key replacements in the given key just read with a dot in case a map key replacement has been
 * configured.
 *
 * @param source
 * @return
 */
protected String potentiallyUnescapeMapKey(String source) {
    return mapKeyDotReplacement == null ? source : source.replaceAll(mapKeyDotReplacement, "\\.");
}

mongo数据源配置

<!-- mongo.haiyoung -->
<mongo:mongo-client id="mongoClient_haiyoung" replica-set="${mongo.replica-set}" credentials="${mongo.user}:${mongo.pwd}@${mongo.defaultDbName}">
    <mongo:client-options connections-per-host="${mongo.connectionsPerHost}"
        min-connections-per-host="${mongo.minConnectionsPerHost}"
        threads-allowed-to-block-for-connection-multiplier="${mongo.threadsAllowedToBlockForConnectionMultiplier}"
        connect-timeout="${mongo.connectTimeout}" max-wait-time="${mongo.maxWaitTime}"
        socket-keep-alive="${mongo.socketKeepAlive}" socket-timeout="${mongo.socketTimeout}"
        description="${mongo.description}" max-connection-idle-time="${mongo.maxConnectionIdleTime}"
        max-connection-life-time="${mongo.maxConnectionLifeTime}"
        heartbeat-socket-timeout="${mongo.heartbeatSocketTimeout}"
        heartbeat-connect-timeout="${mongo.heartbeatConnectTimeout}"
        min-heartbeat-frequency="${mongo.minHeartbeatFrequency}"
        heartbeat-frequency="${mongo.heartbeatFrequency}"
        write-concern="${mongo.write-concern}" read-preference="${mongo.read-preference}" />
</mongo:mongo-client>

<mongo:db-factory id="mongoDbFactory_haiyoung" dbname="${mongo.defaultDbName}" mongo-ref="mongoClient_haiyoung" />

<!--去除自动添加的 _class 字段-->
<bean id="defaultMongoTypeMapper" class="org.springframework.data.mongodb.core.convert.DefaultMongoTypeMapper">
    <constructor-arg name="typeKey"><null /></constructor-arg>
</bean>
<bean id="mappingContext" class="org.springframework.data.mongodb.core.mapping.MongoMappingContext" />

<bean id ="mappingMongoConverter_haiyoung" class="org.springframework.data.mongodb.core.convert.MappingMongoConverter">
    <constructor-arg name="mongoDbFactory" ref="mongoDbFactory_haiyoung"/>
    <constructor-arg name="mappingContext" ref="mappingContext"/>
    <property name="typeMapper" ref="defaultMongoTypeMapper"></property>
    <!--设置对 dot 的替换规则-->
    <property name="mapKeyDotReplacement" value="@dot@"></property>
</bean>

<!-- 1.Spring提供的mongodb操作模板 -->
<mongo:template id="mongoTemplate" db-factory-ref="mongoDbFactory_haiyoung" converter-ref="mappingMongoConverter_haiyoung" />

新增如下属性配置之后，异常消失，数据成功落地

<property name="mapKeyDotReplacement" value="@dot@"></property>

org.springframework.data.mapping.MappingException: Map key xxx.yyyyy contains dots but no replacemen

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