Java tutorial
/* * * Date: 20140822 * Author: Martin Kauss * Company: Open-Xchange * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package org.bishoph.oxdemo.util; import java.io.IOException; import org.apache.http.HttpEntity; import org.apache.http.HttpResponse; import org.apache.http.client.ClientProtocolException; import org.apache.http.client.HttpClient; import org.apache.http.client.methods.HttpGet; import org.apache.http.protocol.HTTP; import org.apache.http.protocol.HttpContext; import org.apache.http.util.EntityUtils; import org.bishoph.oxdemo.OXDemo; import org.json.JSONException; import org.json.JSONObject; import android.os.AsyncTask; import android.util.Log; public class GetTaskList extends AsyncTask<Object, Object, JSONObject> { private OXDemo oxdemo; private HttpClient httpclient; private HttpContext localcontext; public GetTaskList(OXDemo oxdemo, HttpClient httpclient, HttpContext localcontext) { this.oxdemo = oxdemo; this.httpclient = httpclient; this.localcontext = localcontext; } @Override protected JSONObject doInBackground(Object... params) { try { String uri = (String) params[0]; Log.v("OXDemo", "Attempting to get task list " + uri); HttpGet httpget = new HttpGet(uri); httpget.setHeader("Accept", "application/json, text/javascript"); HttpResponse response = httpclient.execute(httpget, localcontext); HttpEntity entity = response.getEntity(); String result = EntityUtils.toString(entity, HTTP.UTF_8); Log.d("OXDemo", "<<<<<<<\n" + result + "\n\n"); JSONObject jsonObj = new JSONObject(result); return jsonObj; } catch (JSONException e) { Log.e("OXDemo", e.getMessage()); } catch (ClientProtocolException e) { Log.e("OXDemo", e.getMessage()); } catch (IOException e) { Log.e("OXDemo", e.getMessage()); } return null; } @Override protected void onPostExecute(JSONObject result) { Log.d("OXDemo", "Post request done"); oxdemo.processJSONResult(result, 2); } }