How can I iterate JSONObject to get individual items
This is my below code from which I need to parse the JSONObject
to get individual items. This is the first time I am working with JSON. So not sure how to parse JSONObject
to get the individual items from JSONObject
.
try {
String url = service + version + method + ipAddress + format;
StringBuilder builder = new StringBuilder();
httpclient = new DefaultHttpClient();
httpget = new HttpGet(url);
httpget.getRequestLine();
response = httpclient.execute(httpget);
HttpEntity entity = response.getEntity();
if (entity != null) {
InputStream inputStream = entity.getContent();
bufferedReader = new BufferedReader(new InputStreamReader(inputStream));
for (String line = null; (line = bufferedReader.readLine()) != null;) {
builder.append(line).append("\n");
}
JSONObject jsonObject = new JSONObject(builder.toString());
// Now iterate jsonObject to get Latitude,Longitude,City,Country etc etc.
}
} catch (Exception e) {
getLogger().log(LogLevel.ERROR, e.getMessage());
} finally {
bufferedReader.close();
httpclient.getConnectionManager().shutdown();
}
My JSON looks like this:
{
"ipinfo": {
"ip_address": "131.208.128.15",
"ip_type": "Mapped",
"Location": {
"continent": "north america",
"latitude": 30.1,
"longitude": -81.714,
"CountryData": {
"country": "united states",
"country_code": "us"
},
"region": "southeast",
"StateData": {
"state": "florida",
"state_code": "fl"
},
"CityData": {
"city": "fleming island",
"postal_code": "32003",
"time_zone": -5
}
}
}
}
I need to get latitude
, longitude
, city
, state
, country
, postal_code
from the above object. Can anyone provide any suggestion how to do it efficiently?
You can try this it will recursively find all key values in a json object and constructs as a map . You can simply get which key you want from the Map .
public static Map<String,String> parse(JSONObject json , Map<String,String> out) throws JSONException{
Iterator<String> keys = json.keys();
while(keys.hasNext()){
String key = keys.next();
String val = null;
try{
JSONObject value = json.getJSONObject(key);
parse(value,out);
}catch(Exception e){
val = json.getString(key);
}
if(val != null){
out.put(key,val);
}
}
return out;
}
public static void main(String[] args) throws JSONException {
String json = "{'ipinfo': {'ip_address': '131.208.128.15','ip_type': 'Mapped','Location': {'continent': 'north america','latitude': 30.1,'longitude': -81.714,'CountryData': {'country': 'united states','country_code': 'us'},'region': 'southeast','StateData': {'state': 'florida','state_code': 'fl'},'CityData': {'city': 'fleming island','postal_code': '32003','time_zone': -5}}}}";
JSONObject object = new JSONObject(json);
JSONObject info = object.getJSONObject("ipinfo");
Map<String,String> out = new HashMap<String, String>();
parse(info,out);
String latitude = out.get("latitude");
String longitude = out.get("longitude");
String city = out.get("city");
String state = out.get("state");
String country = out.get("country");
String postal = out.get("postal_code");
System.out.println("Latitude : " + latitude + " LongiTude : " + longitude + " City : "+city + " State : "+ state + " Country : "+country+" postal "+postal);
System.out.println("ALL VALUE " + out);
}
Output:
Latitude : 30.1 LongiTude : -81.714 City : fleming island State : florida Country : united states postal 32003
ALL VALUE {region=southeast, ip_type=Mapped, state_code=fl, state=florida, country_code=us, city=fleming island, country=united states, time_zone=-5, ip_address=131.208.128.15, postal_code=32003, continent=north america, longitude=-81.714, latitude=30.1}
How about this?
JSONObject jsonObject = new JSONObject (YOUR_JSON_STRING);
JSONObject ipinfo = jsonObject.getJSONObject ("ipinfo");
String ip_address = ipinfo.getString ("ip_address");
JSONObject location = ipinfo.getJSONObject ("Location");
String latitude = location.getString ("latitude");
System.out.println (latitude);
This sample code using "org.json.JSONObject"