Java/MongoDB query by date

Question

I stored a value as a java.util.Date() in my collection, but when I query to get values between two specific dates, I end up getting values outside of the range. Here's my code:

to insert

BasicDBObject object = new BasicDBObject(); ... object.put("dateAdded", new java.util.Date()); collection.insert(object); 

to query

BasicDBObject query = new BasicDBObject(); query.put("dateAdded", new BasicDBObject("$gte", fromDate)); query.put("dateAdded", new BasicDBObject("$lte", toDate)); collection.find(query).sort(new BasicDBObject("dateAdded", -1)); 

when I query between Wed Jul 27 16:54:49 EST 2011 and Wed Jul 27 16:54:49 EST 2011 (basically fromDate = toDate), I get objects with dates like Tue Jul 26 09:43:37 EST 2011 which should definitely not be possible. What am I missing here?

Answer 1

What you're doing is querying only with {$lte: toDate} losing $gte operator in the key overwrite. What you want is:

query.put("dateAdded", BasicDBObjectBuilder.start("$gte", fromDate).add("$lte", toDate).get()); 

Answer 2

If you are using MongoTemplate of Spring-Data Mongodb, you can do the same in following way:-

public List<Link> getLinksBetweenDate(Date startDate, Date endDate) {             Query query = new Query().addCriteria(Criteria.where("updatedOn").gt(startDate).lte(endDate));             return mongoTemplate.find(query, Link.class);         }