GET request in Android

Question

How to append the URL with (key,value) pair before making a get request

i am passing restaurant name from the previous activity as Intents
I am storing that value in variable restaurant_name

Now how can i pass the value stored in variable restaurant_name to the url as a (Key,value) before i make a get request

Restaurantdesc.java

public class RestaurantDesc extends Activity{
    // url to make request


    private static String url = "http://***********************";


    String restaurant_name ;
    ProgressDialog progressDialog;
    JSONObject jsonObject;
    JSONArray first_array ;
    JSONArray second_array;
    TextView textView;
    TextView text;
    TextView topdisp;

    private SparseArray<String> startarsMap = new SparseArray<String>();
    private SparseArray<String> saladsMap = new SparseArray<String>();
    private SparseArray<String> maincourseMap = new SparseArray<String>();
    private SparseArray<String> desertMap = new SparseArray<String>();


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.restaurant_desc);

        //url = getIntent().getStringExtra("key");
        restaurant_name = getIntent().getStringExtra("key");



        topdisp=(TextView) findViewById(R.id.TopNavigationBarRestaurantDescActivityName);
        Button BACKBUTTON=(Button) findViewById(R.id.TopNavigationBarRestaurantDescActivityBackButton);
        BACKBUTTON.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                Intent emp1=new Intent(RestaurantDesc.this,MainActivity.class);
                startActivity(emp1);
            }
        });


        Button PHOTOBUTTON=(Button) findViewById(R.id.RestaurantPhotosButton);
        PHOTOBUTTON.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                Intent pht=new Intent(RestaurantDesc.this,RestaurantPhotos.class);
                pht.putExtra("key", getIntent().getStringExtra("key"));

                startActivity(pht); 
            }
        });



        progressDialog=new ProgressDialog(RestaurantDesc.this);
        new ParsingAsync().execute();
    }




    private class ParsingAsync extends AsyncTask<Void, Void, Void>
    {



        @Override
        protected void onPreExecute() {
            super.onPreExecute();
            progressDialog=ProgressDialog.show(RestaurantDesc.this, "", "Please Wait", true, false);





        }



        @Override
        protected Void doInBackground(Void... params) {
            // TODO Auto-generated method stub
            String _response = null;
            try
            {
                HttpClient httpclient = new DefaultHttpClient();
                httpclient.getParams().setParameter(CoreProtocolPNames.PROTOCOL_VERSION, HttpVersion.HTTP_1_1);

                //url = url."?Key=restaurant_name";
                //url += "?" + "key=" + restaurant_name;


                HttpGet request = new HttpGet(url=url += "?" + "Key=" + restaurant_name);
                HttpResponse response = httpclient.execute(request);
                HttpEntity resEntity = response.getEntity();
                _response =EntityUtils.toString(resEntity);

                jsonObject = new JSONObject(_response);
                first_array = jsonObject.getJSONArray("RestaurantNAME");

<------------------- rest of code------------------------> }

You found already a good place to do it, where exactly do you have a problem? — Henry, Aug 30 '13 at 09:43
You mention a string, yes, but you haven't even made a GET request. Have you looked at any examples/tutorials? — keyser, Aug 30 '13 at 09:44
@ henry.....before i make the Get request from this code i need to append the url with what i have mentioned but ...... dont know how to do it — , Aug 30 '13 at 09:45
@ SatelliteSD ...... tried the solution .... but i get the error above — , Aug 30 '13 at 10:06
@Piyush ........ I made but no change ... i have even poste main activity also ... please check whether i am passing the intents correctly — , Aug 30 '13 at 10:25
@smriti..... why are you calling intent in preExecute() method of button click event...? — Piyush, Aug 30 '13 at 10:27
But in instead of using in preExecute method you can use on oncreate() method... — Piyush, Aug 30 '13 at 10:44
I did it but... still why i am not able to append my parameters to get request ... i am not able to identify ... I am passing intents correctly from mainactivity to this activity :( — , Aug 30 '13 at 10:58
Oh...its a good...But it is with your help not mine....Good Luck..!! — Piyush, Aug 30 '13 at 11:11
you can refer this http://stackoverflow.com/a/18383614/1554935 — Ritesh Gune, Aug 30 '13 at 12:06

score 1 · Answer 1 · answered Aug 30 '13 at 09:44

1

I would recommend this solution:

Uri.Builder b = Uri.parse("http://www.yoursite.com:12345").buildUpon();

b.path("/path/to/something/");
b.appendQueryParameter("arg1", String.valueOf(42));

if (username != "") {
  b.appendQueryParameter("username", username);
}

String url = b.build().toString();

I hope I could help!

answered Aug 30 '13 at 09:44

csikos.balint

1,107
2
10
25

`Uri.Builder b = Uri.parse(url); b.appendQueryParameter("Key", restuarant_name); ` and at doBackgroundAction()`HttpGet request = new HttpGet(b.build.toString());` – csikos.balint Aug 30 '13 at 13:01

Biraj Zalavadia · Answer 2 · 2013-08-30T09:58:56.223

Yes of course you can, like this:

 http://54.218.73.244:7004/RestaurantDesc?keyname1=value1&keyname2=value2&keyname3=value3...

and so on

UPDATE

private static String url = "http://54.218.73.244:7004/RestaurantDesc";
    @Override
    protected Void doInBackground(Void... params) {
        // TODO Auto-generated method stub
        String _response = null;
        try
        {
            HttpClient httpclient = new DefaultHttpClient();
            httpclient.getParams().setParameter(CoreProtocolPNames.PROTOCOL_VERSION, HttpVersion.HTTP_1_1);

            //url = url."?Key=restaurant_name";
            HttpGet request = new HttpGet(url+"?Key="+restaurant_name);
            HttpResponse response = httpclient.execute(request);
            HttpEntity resEntity = response.getEntity();
            _response =EntityUtils.toString(resEntity);

            jsonObject = new JSONObject(_response);
            first_array = jsonObject.getJSONArray("RestaurantNAME");


        } catch (JSONException e) {
            e.printStackTrace();
        } catch (ClientProtocolException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }

        return null;

    }

score 0 · Accepted Answer · edited May 23 '17 at 12:13

You can add the key value pair to the url

if(!url.endsWith("?"))
    url += "?";

List<NameValuePair> params = new LinkedList<NameValuePair>();

params.add(new BasicNameValuePair("Key1", "value1"));
params.add(new BasicNameValuePair("Key2", "value2"));

String paramString = URLEncodedUtils.format(params, "utf-8");

url += paramString;

And now pass this url to your get request..

I Referred this link

GET request in Android

How to append the URL with (key,value) pair before making a get request

3 Answers3