MongoDB "Conditional Query"-Criteria for comparison

Read the premise: the background of the code is this ID other posts: IP library Query

The format is as follows:

Begin End Provinces

18533376,18534399, Inner Mongolia Autonomous Region, Holonbuyr

Simple code:

public static iplocation getlocation ( Long iplong)  {iplocation iplocation = new iplocation ();//  Gets the handle to the table dbcollection collection = null;//  encapsulates the query condition basicdbobject basicdbobject =  null;try {collection = db.getcollection (constant.ipbase); basicDBObject = new  basicdbobject ();// begin <= iplong <= endbasicdbobject.put ("Begin",  New basicdbobject ("$lte",  iplong)), Basicdbobject.put ("End",  new basicdbobject ("$gte",  iplong)); List<dbobject> dbobjectlist = collection.find (Basicdbobject). ToArray (); Iplocation.setprovince (Dbobjectlist.get (0). Get ("province"). ToString ()); Iplocation.setcity (Dbobjectlist.get (0). Get ("City"). ToString ());}  catch  (exception e)  {p ("There was an error in the process of checking the Mixboxipbase Library");} return iplocation;} 

Over here

Basicdbobject.put ("Begin", New Basicdbobject ("$lte", Iplong));  LTE: Less than equals means begin = Iplongbasicdbobject.put ("End", New Basicdbobject ("$gte", Iplong)); Get: is greater than or equal to the end "= Iplong combined to look at the begin < Iplong < end, please do not make any mistake in detail.

MongoDB "Conditional Query"-Criteria for comparison