parse json object response from php web service

Question

i have gone through a number of tutorials to get an idea as to how can we parse JSON object. the structure of ma JSON object response from web service is like this

{"posts":[

{"gpoint":{"latitude":"18.966364","longitude":"72.811317"}},

{"gpoint":{"latitude":"19.07023","longitude":"72.82917"}},

{"gpoint":{"latitude":"19.094889","longitude":"72.840157"}},

{"gpoint":{"latitude":"19.056601","longitude":"72.901955"}}]

}

and this is my code:

       HttpResponse response= client.execute(post);

       content = response.getEntity().getContent();

       String result = stringConversion(content);   


       jObject = new JSONObject(result);

       JSONArray gpoint = jObject.getJSONArray("posts");

       for (int i = 0; i<gpoint.length();i++)
       {

            double geoLat=gpoint.getJSONObject(i).optDouble("latitude");
            double geoLong=gpoint.getJSONObject(i).optDouble("longitude");

       //   double geoLat = gPointObject.getDouble("latitude");
       //   double geoLong = gPointObject.getDouble("longitude");      
            Log.i(Tag," "+ geoLat);
            Log.i(Tag," "+ geoLong);
       }

}   


catch(JSONException e){
    Log.e("log_tag", "Error parsing data "+e.toString());
}

I am not able to parse this response, whenever I am parsing it, it does not give any parse exception but the value for latitude and longitude is NaN

Kindly tell me, where am I going wrong? Thanks in advance.

Femi · Accepted Answer · 2011-05-30 08:40:28Z

3

Try this:

JSONObject gp;
for (int i = 0; i<gpoint.length();i++)
        {
gp = gpoint.getJSONObject(i);
double geoLat = gp.getJSONObject("gpoint").optDouble("latitude");
double geoLong = gp.getJSONObject("gpoint").optDouble("latitude");

        //  double geoLat = gPointObject.getDouble("latitude");
        //  double geoLong = gPointObject.getDouble("longitude");      
            Log.i(Tag," "+ geoLat);
            Log.i(Tag," "+ geoLong);
       }

You're missing one nesting layer.

answered May 30, 2011 at 8:40

Femi

64.8k8 gold badges120 silver badges150 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

Femi Over a year ago

Glad to help. It happens all the time: you are sitting so close to the problem you don't notice your mistake.

Cjxcz Odjcayrwl · Accepted Answer · 2012-02-24 11:41:15Z

0

You may want to use GSON. If you prepare adequate DTO structure, you can map your JSON in one function call. I'm using it in my app.

answered Feb 24, 2012 at 11:41

Cjxcz Odjcayrwl

23k44 gold badges149 silver badges232 bronze badges

Collectives™ on Stack Overflow

parse json object response from php web service

2 Answers 2

1 Comment

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

1 Comment

Comments

Your Answer

Sign up or log in

Post as a guest

Related