java操作Mongodb

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public class TagSampleTemplate {    /**     *      */    public TagSampleTemplate() {    }    @Autowired    private MongoTemplate mongoTemplate;        public ArrayList<DBObject> findByTag(String tag){        DBCollection collection = mongoTemplate.getCollection("tagSample");        DBObject query = new BasicDBObject();        query.put("tag", tag);                DBObject sort = new BasicDBObject();        sort.put("tagCount", -1);        DBCursor cursor = collection.find(query).sort(sort);        ArrayList<DBObject> l = Lists.newArrayList(cursor.iterator());        for(DBObject o : l){            System.out.println(o);        }        return l;    }}

 

java操作Mongodb