在Java中使用聚集查询的MongoDB本机查询

我有本地Mongo查询

[
{
    $match: {
        createdById: "5c3cac81989a8469d435f3b2"
    }
}, {
    $group: {
        _id: "$uID",
        latest: {
            $max: "$latest"
        },
        createdById: {
            $first: "$createdById"
        }
    }
}
]

报告

似乎我必须转换为聚合查询，但我还没有使用它

更新
创建聚合

Aggregation aggregation = newAggregation(match(Criteria.where("createdById").is(userId)),
                group(fields("uID").and("latest","$latest")
                        .and("createdById","$createdById"))
                        .max("$latest").as("latest")
                        .first("$createdById").as("createdById"));
        AggregationResults<NetworkObject> results = mongoTemplate.aggregate(aggregation,"NetworkObject",NetworkObject.class);
        List<NetworkObject> objects = Optional.of(results.getMappedResults()).get();

Aggregation-Aggregation=newAggregation（匹配（Criteria.where（“createdById”）.is（userId）），
组（字段（“uID”）和（“最新”、“最新”）
。和（“createdById”，即“$createdById”））
.max（“$latest”）.as（“latest”）
。第一个（$createdById”）。作为（“createdById”）；
AggregationResults=mongoTemplate.aggregate（聚合，“NetworkObject”，NetworkObject.class）；
List objects=Optional.of（results.getMappedResults（））.get（）；

但它按createdById返回所有集合元素。

请参见

@Query(value = "[ {'$match': {'createdById': ?#{[0]} }}, {'$group': {'_id': '$uID', 'latest': {'$max': '$latest'}, 'createdById': {'$first': '$createdById'}}}]"
Page<NetworkObject> findByCreatedById(String userId, Pageable pageable);

org.bson.BsonInvalidOperationException: readStartDocument can only be called when CurrentBSONType is DOCUMENT, not when CurrentBSONType is ARRAY.

Aggregation aggregation = newAggregation(match(Criteria.where("createdById").is(userId)),
                group(fields("uID").and("latest","$latest")
                        .and("createdById","$createdById"))
                        .max("$latest").as("latest")
                        .first("$createdById").as("createdById"));
        AggregationResults<NetworkObject> results = mongoTemplate.aggregate(aggregation,"NetworkObject",NetworkObject.class);
        List<NetworkObject> objects = Optional.of(results.getMappedResults()).get();