I'm trying to geocode an address and get the lat/lng coordinates in java. I'm able to geocode the address and have it return in a json object, but I'm unable to figure out how to use json-simple to parse the json below to get the lat/lng. Any help is appreciated.
{
"results" : [
{
"address_components" : [
{
"long_name" : "Minneapolis",
"short_name" : "Minneapolis",
"types" : [ "locality", "political" ]
},
{
"long_name" : "Hennepin County",
"short_name" : "Hennepin County",
"types" : [ "administrative_area_level_2", "political" ]
},
{
"long_name" : "Minnesota",
"short_name" : "MN",
"types" : [ "administrative_area_level_1", "political" ]
},
{
"long_name" : "United States",
"short_name" : "US",
"types" : [ "country", "political" ]
}
],
"formatted_address" : "Minneapolis, MN, USA",
"geometry" : {
"bounds" : {
"northeast" : {
"lat" : 45.05125,
"lng" : -93.193794
},
"southwest" : {
"lat" : 44.890144,
"lng" : -93.32916299999999
}
},
"location" : {
"lat" : 44.983334,
"lng" : -93.26666999999999
},
"location_type" : "APPROXIMATE",
"viewport" : {
"northeast" : {
"lat" : 45.05125,
"lng" : -93.193794
},
"southwest" : {
"lat" : 44.890144,
"lng" : -93.32916299999999
}
}
},
"types" : [ "locality", "political" ]
}
],
"status" : "OK"
}
I've tried many different things, but this is my latest failure:
JSONObject json = (JSONObject)parser.parse(addressAsString);
JSONObject results = (JSONObject) json.get("results"); <-- LINE 186
JSONArray geometry = (JSONArray) results.get("geometry");
for(int i = 0; i < geometry.size(); i++) {
JSONObject p = (JSONObject) geometry.get(i);
System.out.println(p);
}
It produces this stacktrace:
Exception in thread "main" java.lang.ClassCastException: org.json.simple.JSONArray cannot be cast to org.json.simple.JSONObject
at com.AddressGeocoder.geocode(AddressGeocoder.java:186)
at com.AddressGeocoder.<init>(AddressGeocoder.java:48)
at com.Geocoder.main(Geocoder.java:7)
So let me break it down for you so you can understand in JSON's {} denotes an object [] denotes an array. Simple? Yeah.
visual breakdown
Basically, in the code you have right now results 0 index would contain "address_components", "formatted_address", "geometry", "types". (NOTE THIS IS ALL ONE OBJECT)
"Address_components" is a array.
Which contain multiple "Address_components."
"Geometry" is just a very very large object in which has many different attributes.
Lastly types is an array.
psuedo code to retrieve items from arrays, yo!
(if you want to see code to see how all this is done let me know)
gl man.