java MongoDB 根据_id获取单条数据

代码如下

DBCollection collection = MongoUtil.getCollection();

BasicDBObject query = new BasicDBObject("_id", new ObjectId("4eb39ed94b5df49e96fde0b4")); 

DBCursor cursor = collection.find(query);
while(cursor.hasNext()){
	System.out.println(cursor.next());
}