我正在尝试设置具有副本集分片的mongodb，我启用了--rest这样我就可以在浏览器上查看我的分片，但是，当我查看“replSetGetStatus”时，它显示“找不到要同步的成员”imageofmyreplicamembersonmybrowser当我在主复制上执行rs.status()时，我的副本成员列表{"set":"S1repset","date":ISODate("2015-09-29T16:19:22.020Z"),"myState":1,"members":[{"_id":0,"name":"10.10.30.10:10000","health":1,"state":1
当我在MongoDB/Node/Express中运行collection.find()时，我想在它完成时得到一个回调。正确的语法是什么？function(id,callback){varo_id=newBSON.ObjectID(id);db.open(function(err,db){db.collection('users',function(err,collection){collection.find({'_id':o_id},function(err,results){//What'sthecorrectcallbacksynataxhere?db.close();callb
我正在尝试使用MongoDB的com.mongodb.client.model.geojson.Polygon类和com.mongodb.client.model.geojson.Position进行地理空间查询>类。客户端代码在自己的boundingBox对象中填充四个双角。这是代码片段:Polygonpolygon=newPolygon(Arrays.asList(newPosition(boundingBox.getRightLongitude(),boundingBox.getTopLatitude()),newPosition(boundingBox.getLeftLongi
我的收藏名称:stu{"_id":ObjectId("56a1f7a6f432505f3a6b287b"),"name":"user1","mark1":"100","mark2":"200"}{"_id":ObjectId("56a1fd3cf432505f3a6b287c"),"name":"user2","mark1":"89","mark2":"70"}我写的查询>db.stu.find({"mark1":{$gt:50}}).pretty()这里有什么问题？gt、ltgte、lte也不工作。 最佳答案 这是因为mark1字
db.restaurant_info.find({name:/pi/i})上面的mongodb查询以下面的格式从数据库返回数据{"_id":ObjectId("579cf26204aba69a41da82ad"),"name":"pizzahut","type":"restaurant"}/*2*/{"_id":ObjectId("579cf26204aba69a41da82af"),"name":"Kaipi","type":"restaurant"}/*3*/{"_id":ObjectId("579cf26404aba69a41da82c7"),"name":"pizzaandpa
我使用获取记录find().toArray()查询。在该记录中，有其他文档(表)的关系ID。我想获取上面查找查询结果的每条记录的关系表记录。喜欢:db.collection('serviceBooking').find({'request_to_sp_user_id':docs._id.toString()}).toArray(function(err,serviceBookingDocs){if(serviceBookingDocs.length){varasyncCalls=[];serviceBookingDocs.forEach(function(bookingRecord,k
我有这个JSON，你可以在产品下看到我有每个产品的条形码我想做的只是获取与产品条形码匹配的信息{"company":"village","logo":"http:\/\/www.incard.com.au\/newsite\/template\/images\/movieticket\/4cinemas\/villagetop.png","products":[{"barcode":"236690091","name":"Weekday","logo-URL":"http:\/\/www.incard.com.au\/newsite\/template\/images\/movieti
几天前，我在使用MongoDB和聚合函数，但无法获得我正在寻找的结果。假设一个集合有这样一个文档:[_id]=>2Q4YkrDUPIdMpHYdG7e801[domain]=>notedlinks.loc[updateDate]=>1353582907[pageCaches]=>Array([0]=>Array([url]=>421341234213470dfb61366[data]=>Array([domain]=>notedlinks.loc[url]=>http://notedlinks.loc/sample/node[contentHash]=>382a250d4c226bb8
我在MongoDB集合上执行这样的查询:cursor=collection.find({"activityArray":{"$elemMatch":{"sport":0}}},{"activityArray.sport":1,"activityArray\|hereisresultobject.id":1,"endo":1})|20166249forresult_objectincursor[0:1]:|hereisresultobjectprint"hereisresultobject"|20166249|hereisresultobjectprintresult_object["e
