How can I iterate JSONObject to get individual items

Question

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

User · Answer

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

User · Answer

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 lt String String gt  parse JSONObject json   Map lt String String gt  out  throws JSONException      Iterator lt String gt  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 lt String String gt  out   new HashMap lt String  String gt          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

[java] How can I iterate JSONObject to get individual items

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