CODEWITHSUNDEEP
javajsongoogle-mapsgeocoding
brdu
brdu

Reputation: 284

Parsing google geocode result in java - getting JSONArray[0] not found (It is there)

EDIT: I have another program, which uses direction service. It works. When I use that code in this geocode project, it throws the same error. (Eclipse, Java EE, Tomcat7)

for reference here's the request

http://maps.googleapis.com/maps/api/geocode/json?address=vancouver,bc&sensor=true

Here's there code

JSONObject obj = new JSONObject(s);
JSONObject res = obj.getJSONArray("results").getJSONObject(0);

String "s" is the return json. This works:

 System.out.println(obj.getJSONArray("results");

Though as soon as I try getJSONObject(0) I get the error. I was working with the directions service prior to this and it sends a very similar result.. which was working for me. Any advice is much appreciated! This has eaten a couple hours of my night now so I thought I'd seek some help.

Upvotes: 0

Views: 2473

Answers (2)

German Silva
German Silva

Reputation: 1

As you can see here:

{
   "results" : [
      {
         "address_components" : [
            {
               "long_name" : "1600",
               "short_name" : "1600",
               "types" : [ "street_number" ]
            },
            {
               "long_name" : "Amphitheatre Parkway",
               "short_name" : "Amphitheatre Pkwy",
               "types" : [ "route" ]
            },
            {
               "long_name" : "Mountain View",
               "short_name" : "Mountain View",
               "types" : [ "locality", "political" ]
            },
            {
               "long_name" : "Santa Clara County",
               "short_name" : "Santa Clara County",
               "types" : [ "administrative_area_level_2", "political" ]
            },
            {
               "long_name" : "California",
               "short_name" : "CA",
               "types" : [ "administrative_area_level_1", "political" ]
            },
            {
               "long_name" : "United States",
               "short_name" : "US",
               "types" : [ "country", "political" ]
            },
            {
               "long_name" : "94043",
               "short_name" : "94043",
               "types" : [ "postal_code" ]
            }
         ],
         "formatted_address" : "1600 Amphitheatre Pkwy, Mountain View, CA 94043, USA",
         "geometry" : {
            "location" : {
               **"lat"** : 37.4223329,
               **"lng"** : -122.0844192
            },
            "location_type" : "ROOFTOP",
            "viewport" : {
               "northeast" : {
                  "lat" : 37.4236818802915,
                  "lng" : -122.0830702197085
               },
               "southwest" : {
                  "lat" : 37.4209839197085,
                  "lng" : -122.0857681802915
               }
            }
         },
         "place_id" : "ChIJ2eUgeAK6j4ARbn5u_wAGqWA",
         "types" : [ "street_address" ]
      }
   ],
   "status" : "OK"
}

lat(Latitude) and lng(Longitude) are of type Double, hence the correct code (if you need latitude and longitude as Strings) is:

String latitude = Double.toString(jsonTree.getJSONArray("results").getJSONObject(0).getJSONObject("geometry").getJSONObject("location").getDouble("lat"));

String longitude = Double.toString(jsonTree.getJSONArray("results").getJSONObject(0).getJSONObject("geometry").getJSONObject("location").getDouble("lng"));

Upvotes: 0

y.maki
y.maki

Reputation: 21

String lat = obj.getJSONArray("results").getJSONObject(0).getJSONObject("geometry").getJSONObject("location").getString("lat");

Upvotes: 2

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