java连接mongodb插入对象为什么id默认0

2025-04-26 00:59:26
推荐回答(1个)
回答1:

DBCollection collection = db.getCollection("user");
DBObject object = new BasicDBObject();
object.put("name", "aaa");
object.put("age", 11);
collection.save(object);
System.out.println(object.get("_id"));