在MongoDB rest服务中，偏移量始终为0

Question

我想滚动浏览mongodb REST响应的所有页面。

ubuntu@ubuntu:/etc$ curl http://localhost:28017/bb/feeds/?limit=1

没有偏移，我得到正确的结果

  {
  "offset" : 0,
  "rows": [
    { "_id" : { "$oid" : "57254bd21d41c82413afed60" }, "variety" : "Other", "modal_price" : "2150", "commodity" : "Rice", "max_price" : "2200", "state" : "West Bengal", "min_price" : "2100", "district" : "Uttar Dinajpur", "timestamp" : "1462026632", "market" : "Islampur", "id" : "87200341", "arrival_date" : "30/04/2016" }
  ],
  "total_rows" : 1 ,
  "query" : {} ,
  "millis" : 0
}

但当我通过偏移量=2时，我仍然得到相同的结果

ubuntu@ubuntu:/etc$ curl http://localhost:28017/bb/feeds/?limit=1&offset=2
{
  "offset" : 0,
  "rows": [
    { "_id" : { "$oid" : "57254bd21d41c82413afed60" }, "variety" : "Other", "modal_price" : "2150", "commodity" : "Rice", "max_price" : "2200", "state" : "West Bengal", "min_price" : "2100", "district" : "Uttar Dinajpur", "timestamp" : "1462026632", "market" : "Islampur", "id" : "87200341", "arrival_date" : "30/04/2016" }
  ],
  "total_rows" : 1 ,
  "query" : {} ,
  "millis" : 0
} 

Answer 1

您需要传递的URL参数实际上是skip，而不是offset:

curl http://localhost:28017/bb/feeds/?limit=1&skip=2

其在JSON输出中被指示为CCD_ 3值。

注意：MongoDB中内置的REST接口在功能和安全性方面非常有限，在MongoDB 3.2中不推荐使用。我强烈建议研究一种替代的（并积极维护的）REST API。有关起点，请参阅MongoDB手册中的HTTP接口。