Example usage for java.net HttpURLConnection connect

List of usage examples for java.net HttpURLConnection connect

  1. HOME
  2. Java
  3. java
  4. java.net.*
  5. HttpURLConnection
  6. connect

Introduction

In this page you can find the example usage for java.net HttpURLConnection connect.

Prototype

public abstract void connect() throws IOException;

Source Link

Document

Opens a communications link to the resource referenced by this URL, if such a connection has not already been established.

Usage

From source file:edu.wfu.inotado.helper.RestClientHelper.java

public String getFromService(String serviceName, String urlStr) throws Exception {

    OAuthConsumer consumer = oauthHelper.getConsumer(serviceName);
    URL url;/*from www .  ja v a2 s .c  o m*/
    url = new URL(urlStr);
    HttpURLConnection request = (HttpURLConnection) url.openConnection();

    consumer.sign(request);

    log.info("Sending request...");
    request.connect();

    InputStream in = (InputStream) request.getContent();
    BufferedReader reader = new BufferedReader(new InputStreamReader(in));
    String result, line = reader.readLine();
    result = line;
    while ((line = reader.readLine()) != null) {
        result += line;
    }
    log.debug("Respone: " + result);
    log.info("Response: " + request.getResponseCode() + " " + request.getResponseMessage());

    return result;
}

From source file:com.WeatherProxy.java

private void getWeather(String lat, String lng) {
    weatherNow = "";
    String apiUrl = "https://api.forecast.io/forecast/";
    String apiKey = "fad007e59cd36e504fa337d946feb7d2";
    String urlString = apiUrl + apiKey + "/" + lat + "," + lng;

    try {//from  w ww  .  ja  va  2  s . c om
        URL url = new URL(urlString);
        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
        conn.setRequestMethod("GET");
        conn.setRequestProperty("Accept", "application/json");
        conn.connect();

        if (conn.getResponseCode() != 200) {
            throw new RuntimeException("Failed : HTTP error code : " + conn.getResponseCode());
        }

        // The body of the response is available as an input stream.
        // Using BufferedReader is good practice for efficient I/O, because it
        // takes lots of little reads and does fewer larger actual I/O
        // operations.  It doesn't make much difference in this case,
        // since we only do one I/O.  But it's still good practice.
        BufferedReader br = new BufferedReader(new InputStreamReader((conn.getInputStream())));
        // api.forecast.io returns a single (very long) line of JSON.
        weatherNow += br.readLine();

    } catch (MalformedURLException e) {
        e.printStackTrace();
        this.weatherNow = "{ 'error': 'MalformedURLException' }";
    } catch (IOException e) {
        e.printStackTrace();
        this.weatherNow = "{ 'error': 'IOException' }";
    }
}

From source file:org.jboss.as.test.integration.management.console.WebConsoleRedirectionTestCase.java

private HttpURLConnection getConnection() throws Exception {
    final URL url = new URL("http://" + TestSuiteEnvironment.getServerAddress() + ":"
            + TestSuiteEnvironment.getServerPort() + "/");
    final HttpURLConnection connection = (HttpURLConnection) url.openConnection();
    assertNotNull(connection);/*w w  w.java2s .  co m*/
    connection.setInstanceFollowRedirects(false);
    connection.setRequestMethod(HttpGet.METHOD_NAME);
    connection.connect();
    return connection;
}

From source file:it.openyoureyes.test.panoramio.Panoramio.java

public List<GeoItem> examinePanoramio(Location current, double distance, Drawable myImage, Intent intent) {
    ArrayList<GeoItem> result = new ArrayList<GeoItem>();

    /*/*from w w w .  j  a  v a  2  s .co  m*/
     * var requiero_fotos = new Json.Remote(
     * "http://www.panoramio.com/map/get_panoramas.php?order=popularity&
     * set=
     * full&from=0&to=10&minx=-5.8&miny=42.59&maxx=-5.5&maxy=42.65&size=
     * medium "
     */
    Location loc1 = new Location("test");
    Location loc2 = new Location("test_");
    AbstractGeoItem.calcDestination(current.getLatitude(), current.getLongitude(), 225, distance / 2, loc1);
    AbstractGeoItem.calcDestination(current.getLatitude(), current.getLongitude(), 45, distance / 2, loc2);
    try {
        URL url = new URL(
                "http://www.panoramio.com/map/get_panoramas.php?order=popularity&set=full&from=0&to=10&minx="
                        + loc1.getLongitude() + "&miny=" + loc1.getLatitude() + "&maxx=" + loc2.getLongitude()
                        + "&maxy=" + loc2.getLatitude() + "&size=thumbnail");
        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
        conn.setDoInput(true);
        conn.connect();
        InputStream is = conn.getInputStream();

        String line;
        BufferedReader reader = new BufferedReader(new InputStreamReader(is));
        StringBuffer buf = new StringBuffer();
        while ((line = reader.readLine()) != null) {
            buf.append(line + " ");
        }
        reader.close();
        is.close();
        conn.disconnect();
        // while (is.read(buffer) != -1);
        String jsontext = buf.toString();
        Log.d("Json Panoramio", jsontext);
        JSONObject entrie = new JSONObject(jsontext);
        JSONArray arr = entrie.getJSONArray("photos");
        for (int i = 0; i < arr.length(); i++) {
            JSONObject panoramioObj = arr.getJSONObject(i);
            double longitude = panoramioObj.getDouble("longitude");
            double latitude = panoramioObj.getDouble("latitude");
            String urlFoto = panoramioObj.getString("photo_file_url");
            String idFoto = panoramioObj.getString("photo_id");
            Bundle bu = intent.getExtras();
            if (bu == null)
                bu = new Bundle();
            bu.putString("id", idFoto);
            intent.replaceExtras(bu);
            BitmapDrawable bb = new BitmapDrawable(downloadFile(urlFoto));
            PanoramioItem item = new PanoramioItem(latitude, longitude, false, bb, intent);
            result.add(item);
        }

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

}

From source file:com.smedic.tubtub.JsonAsyncTask.java

@Override
protected ArrayList<String> doInBackground(String... params) {

    //encode param to avoid spaces in URL
    String encodedParam = "";
    try {//from  www.  j a  va2s.  co  m
        encodedParam = URLEncoder.encode(params[0], "UTF-8").replace("+", "%20");
    } catch (UnsupportedEncodingException e) {
        e.printStackTrace();
    }

    ArrayList<String> items = new ArrayList<>();
    try {
        URL url = new URL(
                "http://suggestqueries.google.com/complete/search?client=youtube&ds=yt&q=" + encodedParam);
        HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection();
        urlConnection.setRequestMethod("GET");
        urlConnection.connect();
        // gets the server json data
        BufferedReader bufferedReader = new BufferedReader(
                new InputStreamReader(urlConnection.getInputStream()));

        String next;
        while ((next = bufferedReader.readLine()) != null) {

            if (checkJson(next) == JSON_ERROR) {
                //if not valid, remove invalid parts (this is simple hack for URL above)
                next = next.substring(19, next.length() - 1);
            }

            JSONArray ja = new JSONArray(next);

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

                if (ja.get(i) instanceof JSONArray) {
                    JSONArray ja2 = ja.getJSONArray(i);

                    for (int j = 0; j < ja2.length(); j++) {

                        if (ja2.get(j) instanceof JSONArray) {
                            String suggestion = ((JSONArray) ja2.get(j)).getString(0);
                            //Log.d(TAG, "Suggestion: " + suggestion);
                            items.add(suggestion);
                        }
                    }
                } else if (ja.get(i) instanceof JSONObject) {
                    //Log.d(TAG, "json object");
                } else {
                    //Log.d(TAG, "unknown object");
                }
            }
        }
    } catch (IOException | JSONException e) {
        e.printStackTrace();
    }
    return items;
}

From source file:org.apache.olingo.odata2.fit.basic.FitLoadTest.java

@Test
public void useJavaHttpClient() throws IOException {
    final URI uri = URI.create(getEndpoint().toString() + "$metadata");
    for (int i = 0; i < LOOP_COUNT; i++) {
        HttpURLConnection connection = (HttpURLConnection) uri.toURL().openConnection();
        connection.setRequestMethod("GET");
        connection.setRequestProperty(HttpHeaders.ACCEPT, HttpContentType.WILDCARD);
        connection.connect();
        assertEquals(HttpStatusCodes.OK.getStatusCode(), connection.getResponseCode());
        assertEquals(HttpContentType.APPLICATION_XML_UTF8, connection.getContentType());
    }/*from   w  w w .j  av  a 2s  .c o m*/
}

From source file:com.google.apphosting.vmruntime.jetty9.VmRuntimeJettyKitchenSinkTest.java

/**
 * Tests that app.yaml is protected//  ww w.j a v a2 s  . c  om
 */
public void testAppYamlHidden() throws Exception {
    HttpURLConnection connection = (HttpURLConnection) createUrl("/app.yaml").openConnection();
    connection.connect();
    assertEquals(404, connection.getResponseCode());
}

From source file:Servlet.Change.java

/**
 * Processes requests for both HTTP <code>GET</code> and <code>POST</code>
 * methods./* www.  j  a v a2 s .c om*/
 *
 * @param request servlet request
 * @param response servlet response
 * @throws ServletException if a servlet-specific error occurs
 * @throws IOException if an I/O error occurs
 */
protected void processRequest(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {

    try {
        //grabbing the event parameter
        String eventUrl = request.getParameter("eventUrl");
        System.out.print(eventUrl);

        //Obtaining authority of event
        OAuthConsumer consumer = new DefaultOAuthConsumer("test6-40942", "oQ4q4oBiv9y4jPr7");
        URL url = new URL(eventUrl);
        HttpURLConnection requestUrl = (HttpURLConnection) url.openConnection();
        consumer.sign(requestUrl);
        requestUrl.connect();

        //Reading in the xml file as a string
        String result = null;
        StringBuilder sb = new StringBuilder();
        InputStream is = new BufferedInputStream(requestUrl.getInputStream());
        BufferedReader br = new BufferedReader(new InputStreamReader(is));
        String inputLine = "";
        while ((inputLine = br.readLine()) != null) {
            sb.append(inputLine);
        }

        result = sb.toString();

        DocumentBuilder builder = DocumentBuilderFactory.newInstance().newDocumentBuilder();
        InputSource src = new InputSource();
        src.setCharacterStream(new StringReader(result));

        //parsing elements by name tags from event url
        Document doc = builder.parse(src);
        String creatorName = doc.getElementsByTagName("fullName").item(0).getTextContent();
        String companyName = doc.getElementsByTagName("name").item(0).getTextContent();
        String edition = doc.getElementsByTagName("editionCode").item(0).getTextContent();
        String returnUrl = doc.getElementsByTagName("returnUrl").item(0).getTextContent();

        DefaultHttpClient httpClient = new DefaultHttpClient();
        HttpPost xmlResponse = new HttpPost(returnUrl);
        StringEntity input = new StringEntity(
                "<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"yes\"?><result><success>true</success><message>Account change successful</message>");
        input.setContentType("text/xml");
        xmlResponse.setEntity(input);
        httpClient.execute(xmlResponse);

    } catch (OAuthMessageSignerException ex) {
        Logger.getLogger(Change.class.getName()).log(Level.SEVERE, null, ex);
    } catch (OAuthExpectationFailedException ex) {
        Logger.getLogger(Change.class.getName()).log(Level.SEVERE, null, ex);
    } catch (OAuthCommunicationException ex) {
        Logger.getLogger(Change.class.getName()).log(Level.SEVERE, null, ex);
    } catch (SAXException ex) {
        Logger.getLogger(Change.class.getName()).log(Level.SEVERE, null, ex);
    } catch (ParserConfigurationException ex) {
        Logger.getLogger(Change.class.getName()).log(Level.SEVERE, null, ex);
    }

}

From source file:Servlet.Notification.java

/**
 * Processes requests for both HTTP <code>GET</code> and <code>POST</code>
 * methods./*w w  w .  j a  v a2 s  .  com*/
 *
 * @param request servlet request
 * @param response servlet response
 * @throws ServletException if a servlet-specific error occurs
 * @throws IOException if an I/O error occurs
 */
protected void processRequest(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {

    try {
        //grabbing the event parameter
        String eventUrl = request.getParameter("eventUrl");
        System.out.print(eventUrl);

        //Obtaining authority of event
        OAuthConsumer consumer = new DefaultOAuthConsumer("test6-40942", "oQ4q4oBiv9y4jPr7");
        URL url = new URL(eventUrl);
        HttpURLConnection requestUrl = (HttpURLConnection) url.openConnection();
        consumer.sign(requestUrl);
        requestUrl.connect();

        //Reading in the xml file as a string
        String result = null;
        StringBuilder sb = new StringBuilder();
        InputStream is = new BufferedInputStream(requestUrl.getInputStream());
        BufferedReader br = new BufferedReader(new InputStreamReader(is));
        String inputLine = "";
        while ((inputLine = br.readLine()) != null) {
            sb.append(inputLine);
        }

        result = sb.toString();

        DocumentBuilder builder = DocumentBuilderFactory.newInstance().newDocumentBuilder();
        InputSource src = new InputSource();
        src.setCharacterStream(new StringReader(result));

        Document doc = builder.parse(src);
        String creatorName = doc.getElementsByTagName("fullName").item(0).getTextContent();
        String companyName = doc.getElementsByTagName("name").item(0).getTextContent();
        String edition = doc.getElementsByTagName("editionCode").item(0).getTextContent();
        String returnUrl = doc.getElementsByTagName("returnUrl").item(0).getTextContent();

        //parsing elements by name tags from event url
        DefaultHttpClient httpClient = new DefaultHttpClient();
        HttpPost xmlResponse = new HttpPost(returnUrl);
        StringEntity input = new StringEntity(
                "<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"yes\"?><result><success>true</success><message>Account change successful</message>");
        input.setContentType("text/xml");
        xmlResponse.setEntity(input);
        httpClient.execute(xmlResponse);

    } catch (OAuthMessageSignerException ex) {
        Logger.getLogger(Notification.class.getName()).log(Level.SEVERE, null, ex);
    } catch (OAuthExpectationFailedException ex) {
        Logger.getLogger(Notification.class.getName()).log(Level.SEVERE, null, ex);
    } catch (OAuthCommunicationException ex) {
        Logger.getLogger(Notification.class.getName()).log(Level.SEVERE, null, ex);
    } catch (ParserConfigurationException ex) {
        Logger.getLogger(Notification.class.getName()).log(Level.SEVERE, null, ex);
    } catch (SAXException ex) {
        Logger.getLogger(Notification.class.getName()).log(Level.SEVERE, null, ex);
    }

}

From source file:net.ae97.pokebot.extensions.scrolls.PriceCommand.java

@Override
public void runEvent(CommandEvent event) {
    if (event.getArgs().length == 0) {
        event.respond("Usage: .price [name]");
        return;/*from   w w  w. j a  v a 2  s  . co  m*/
    }

    String[] name = event.getArgs();
    try {
        URL playerURL = new URL(url.replace("{name}", StringUtils.join(name, "%20")));
        List<String> lines = new LinkedList<>();
        HttpURLConnection conn = (HttpURLConnection) playerURL.openConnection();
        conn.setRequestProperty("User-Agent", "PokeBot - " + PokeBot.VERSION);
        conn.connect();
        try (BufferedReader reader = new BufferedReader(new InputStreamReader(conn.getInputStream()))) {
            String line;
            while ((line = reader.readLine()) != null) {
                lines.add(line);
            }
        }

        JsonParser parser = new JsonParser();
        JsonElement element = parser.parse(StringUtils.join(lines, "\n"));
        JsonObject obj = element.getAsJsonObject();

        String result = obj.get("msg").getAsString();
        if (!result.equalsIgnoreCase("success")) {
            event.respond("Scroll not found");
            return;
        }
        JsonObject dataObject = obj.get("data").getAsJsonArray().get(0).getAsJsonObject();

        StringBuilder builder = new StringBuilder();

        JsonObject buyObj = dataObject.getAsJsonObject("buy");
        JsonObject sellObj = dataObject.getAsJsonObject("sell");
        JsonObject bmObj = dataObject.getAsJsonObject("bm");

        builder.append("Buy: ").append(buyObj.get("price").getAsInt()).append(" Gold - ");
        builder.append("Sell: ").append(sellObj.get("price").getAsInt()).append(" Gold - ");
        builder.append("Black Market: ").append(bmObj.get("price").getAsInt()).append(" Gold");
        String[] message = builder.toString().split("\n");
        for (String msg : message) {
            event.respond("" + msg);
        }

    } catch (IOException | JsonSyntaxException | IllegalStateException ex) {
        PokeBot.getLogger().log(Level.SEVERE,
                "Error on getting scroll for Scrolls for '" + StringUtils.join(event.getArgs(), " ") + "'", ex);
        event.respond("Error on getting scroll: " + ex.getLocalizedMessage());

    }
}