{ "_id": { "$oid": "54d897a06621f876827ea4cf" }, "cCode": "029", "city": null, "collectNum": 0, "commentNum": 345, "createTime": "1423480735", "image": "201544061644315750.png", "latitude": 34.235161, "location": "陕西省西安市", "longitude": 108.893321, "scenicId": "45", "score": "5", "tags": [ "1", "2", "3" ], "text": null, "title": "兵马俑", "type": "0" }
比如，我想将"collectNum": 0变成"collectNum": 0，我该如何做呢？通过"scenicId": "45"来查找。但是查找以后如何更新？DBAccessAPIHelp APIHelp = new DBAccessAPIHelp();
BSONObject query = new BasicBSONObject();
query.put(SCENIC.scenicId, scenicId);
我想直接更新。而不是查找以后转换成对象，对象变化以后再变成json。
就是能直接更新字段那种
