Java tutorial
/** * Copyright (c) 2012 The University of Nottingham * * This file is part of ubihelper * * ubihelper is free software: you can redistribute it and/or modify * it under the terms of the GNU Affero General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * ubihelper is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with ubihelper. If not, see <http://www.gnu.org/licenses/>. * * @author Chris Greenhalgh (cmg@cs.nott.ac.uk), The University of Nottingham */ package uk.ac.horizon.ubihelper.ui; import java.io.ByteArrayOutputStream; import java.io.IOException; import java.io.UnsupportedEncodingException; import org.apache.http.HttpResponse; import org.apache.http.client.ClientProtocolException; import org.apache.http.client.methods.HttpPost; import org.apache.http.entity.StringEntity; import org.apache.http.impl.client.DefaultHttpClient; import uk.ac.horizon.ubihelper.R; import uk.ac.horizon.ubihelper.R.id; import uk.ac.horizon.ubihelper.R.layout; import android.app.Activity; import android.os.Bundle; import android.os.Handler; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.TextView; /** dummy activity */ public class TestActivity extends Activity { private Handler mHandler; private TextView text; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); mHandler = new Handler(); setContentView(R.layout.main); text = (TextView) findViewById(R.id.test_text); Button test = (Button) findViewById(R.id.test_button); test.setOnClickListener(new OnClickListener() { public void onClick(View arg0) { new Thread() { public void run() { doTest(); } }.start(); } }); } private void setText(final String t) { mHandler.post(new Runnable() { public void run() { text.setText(t); } }); } private void append(final String t) { mHandler.post(new Runnable() { public void run() { text.append(t); } }); } protected void doTest() { DefaultHttpClient httpClient = new DefaultHttpClient(); String url = "http://127.0.0.1:8180/ubihelper"; HttpPost httppost = new HttpPost(url); String request = "[{\"name\":\"magnetic\",\"period\":0.5,\"count\":1,\"timeout\":20}," + "{\"name\":\"accelerometer\",\"period\":0.5,\"count\":1,\"timeout\":20}]"; setText("POST " + url + "\n" + request); try { httppost.setEntity(new StringEntity(request, "UTF-8")); HttpResponse response = httpClient.execute(httppost); final int status = response.getStatusLine().getStatusCode(); final String message = response.getStatusLine().getReasonPhrase(); ByteArrayOutputStream baos = new ByteArrayOutputStream(); response.getEntity().writeTo(baos); final String resp = baos.toString("UTF-8"); append("\nGot " + status + " (" + message + "): " + resp); } catch (ClientProtocolException e) { e.printStackTrace(); append("\nError: " + e); } catch (UnsupportedEncodingException e1) { e1.printStackTrace(); append("\nError: " + e1); } catch (IOException e) { e.printStackTrace(); append("\nError: " + e); } } }