java - Java中的DBObject映射

Question

我需要将 MongoDB 的结果放在 Map 中。我的代码是

DBCollection collection = db.getCollection("template");
DBCursor cursor = collection.find(allQuery, removeIdProjection); 
DBObject resultElement = null;
resultElement = cursor.next();

结果Json是：

{ “GraphLabel”：“工单数量”，“XaxisLabel”：“2012”，“YaxisLabel”：“volume(k)”，“ShowLegend”：“FALSE”，“query”：“select sd.season_id,sd .season, count(fsf.defect_type_id) from m2m.season_dim sd ,m2m.field_service_fact fsf where fsf.season_id = sd.season_id group by sd.season_id"}

需要将值与 MAP 或 POJO .. 有人可以帮忙吗？

Answer 1

DBObject有一种将toMap()其转换为地图的方法

Answer 2

下面的代码会做：

DBCollection collection = db.getCollection("template");
DBCursor cursor = collection.find(allQuery, removeIdProjection); 
Document doc = cursor.next(); // Which is already a Map compatible object

Map <String, Object> mDoc = doc;