Example usage for java.net HttpURLConnection 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:io.jari.geenstijl.API.API.java

public static String postUrl(String url, List<NameValuePair> params, String cheader, boolean refererandorigin)
        throws IOException {
    HttpURLConnection http = (HttpURLConnection) new URL(url).openConnection();
    http.setRequestMethod("POST");
    http.setDoInput(true);//from   w ww.  ja va2s . c  o  m
    http.setDoOutput(true);
    if (cheader != null)
        http.setRequestProperty("Cookie", cheader);
    if (refererandorigin) {
        http.setRequestProperty("Referer",
                "http://www.geenstijl.nl/mt/archieven/2014/01/brein_chanteert_ondertitelaars.html");
        http.setRequestProperty("Origin", "http://www.geenstijl.nl");
    }
    OutputStream os = http.getOutputStream();
    BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(os, "UTF-8"));
    writer.write(getQuery(params));
    writer.flush();
    writer.close();
    os.close();

    http.connect();

    InputStream in = http.getInputStream();
    String encoding = http.getContentEncoding();
    encoding = encoding == null ? "UTF-8" : encoding;
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    byte[] buf = new byte[8192];
    int len = 0;
    while ((len = in.read(buf)) != -1) {
        baos.write(buf, 0, len);
    }
    return new String(baos.toByteArray(), encoding);
}

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From source file:edu.rit.chrisbitler.ritcraft.slackintegration.SlackIntegration.java

private void startRTM() throws IOException, URISyntaxException, DeploymentException {
    URL url = new URL("https://www.slack.com/api/rtm.start?token=" + BOT_TOKEN);
    HttpURLConnection conn = (HttpURLConnection) url.openConnection();
    conn.setInstanceFollowRedirects(true);
    conn.connect();
    JSONObject returnVal = (JSONObject) JSONValue.parse(new InputStreamReader((InputStream) conn.getContent()));
    String wsUrl = (String) returnVal.get("url");

    //unescape the wsUrl string's slashes
    wsUrl = wsUrl.replace("\\", "");

    //Query the users so we can link user id -> username
    System.out.println("Querying slack users..");
    UserList.queryUsers();//from w ww .  j av  a 2s .c  o m

    System.out.println("Recieved WebSocket URI from slack, connecting... " + wsUrl);

    //Connect via the real-time messaging client and the websocket.
    ClientEndpointConfig cec = ClientEndpointConfig.Builder.create().build();
    client = ClientManager.createClient();
    rtm = new RTMClient();
    client.connectToServer(rtm, cec, new URI(wsUrl));
}

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From source file:weavebytes.com.futureerp.activities.DashBoardActivity.java

public boolean isOnline() {
    ConnectivityManager cm = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
    NetworkInfo netInfo = cm.getActiveNetworkInfo();
    if (netInfo != null && netInfo.isConnected()) {
        try {/*from   w ww  .  ja v a2  s .  c  o m*/
            URL url = new URL("http://www.google.com");
            HttpURLConnection urlc = (HttpURLConnection) url.openConnection();
            urlc.setConnectTimeout(2000);
            urlc.connect();
            if (urlc.getResponseCode() == 200) {
                return new Boolean(true);
            }
        } catch (MalformedURLException e1) {
            e1.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    return false;
}

---

From source file:com.juick.android.Utils.java

public static Bitmap downloadImage(String url) {
    try {//from w  w w.ja v  a 2s.c o  m
        URL imgURL = new URL(url);
        HttpURLConnection conn = (HttpURLConnection) imgURL.openConnection();
        conn.setDoInput(true);
        conn.connect();
        return BitmapFactory.decodeStream(conn.getInputStream());
    } catch (Exception e) {
        Log.e("downloadImage", e.toString());
    }
    return null;
}

---

From source file:eu.peppol.smp.SmpContentRetrieverImpl.java

/**
 * Gets the XML content of a given url, wrapped in an InputSource object.
 *///from   w  w w . j av a 2 s  . com
@Override
public InputSource getUrlContent(URL url) {

    HttpURLConnection httpURLConnection = null;
    try {
        httpURLConnection = (HttpURLConnection) url.openConnection();
        httpURLConnection.connect();
    } catch (IOException e) {
        throw new IllegalStateException("Unable to connect to " + url + " ; " + e.getMessage(), e);
    }

    try {
        if (httpURLConnection.getResponseCode() == HttpURLConnection.HTTP_UNAVAILABLE)
            throw new TryAgainLaterException(url, httpURLConnection.getHeaderField("Retry-After"));
        if (httpURLConnection.getResponseCode() != HttpURLConnection.HTTP_OK)
            throw new ConnectionException(url, httpURLConnection.getResponseCode());
    } catch (IOException e) {
        throw new RuntimeException("Problem reading URL data at " + url.toExternalForm(), e);
    }

    try {

        String encoding = httpURLConnection.getContentEncoding();
        InputStream in = new BOMInputStream(httpURLConnection.getInputStream());
        InputStream result;

        if (encoding != null && encoding.equalsIgnoreCase(ENCODING_GZIP)) {
            result = new GZIPInputStream(in);
        } else if (encoding != null && encoding.equalsIgnoreCase(ENCODING_DEFLATE)) {
            result = new InflaterInputStream(in);
        } else {
            result = in;
        }

        String xml = readInputStreamIntoString(result);

        return new InputSource(new StringReader(xml));

    } catch (Exception e) {
        throw new RuntimeException("Problem reading URL data at " + url.toExternalForm(), e);
    }

}

---

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

private synchronized void sync() {
    if (lastUpdate + (1000 * 60 * 60 * 24) > System.currentTimeMillis()) {
        return;/*  w w  w  .  j a v a  2 s  . com*/
    }
    try {
        URL url = new URL(syncURL);
        List<String> lines = new LinkedList<>();
        HttpURLConnection conn = (HttpURLConnection) url.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")) {
            throw new IOException("API replied with error");
        }

        JsonArray dataObject = obj.get("data").getAsJsonArray();
        synchronized (ranks) {
            ranks.clear();
            for (int i = 0; i < dataObject.size(); i++) {
                JsonObject rank = dataObject.get(i).getAsJsonObject();
                ranks.put(rank.get("id").getAsString(), rank.get("name").getAsString());
            }
            ranks.put("-1", "No badge");
        }
        lastUpdate = System.currentTimeMillis();
    } catch (IOException | JsonSyntaxException ex) {
        extension.getLogger().log(Level.SEVERE, "Error on syncing badge ranks", ex);
        lastUpdate = -1;
    }
}

---

From source file:MyWeatherService.java

String getWeatherFromInternet(String location) {
    String temperature = "", condition = "", weatherString;

    URL url;//from  www  .j  a va2s .  c  om

    if (location != null && !location.equals("")) {
        try {
            url = new URL(WEATHER_UNDERGROUND_URL + location + ".json");

            HttpURLConnection connection = (HttpURLConnection) url.openConnection();
            connection.setDoInput(true);
            connection.connect();

            InputStream input = connection.getInputStream();
            BufferedReader reader = new BufferedReader(new InputStreamReader(input));

            String oneLineFromInternet;
            String wholeReplyFromInternet = "";
            while ((oneLineFromInternet = reader.readLine()) != null) {
                wholeReplyFromInternet += oneLineFromInternet + " ";
            }

            JSONObject jsonObject = new JSONObject(wholeReplyFromInternet);
            JSONObject current_observation = jsonObject.getJSONObject("current_observation");
            temperature = current_observation.getString(TEMP_F);
            condition = current_observation.getString(CONDITION);

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

        weatherString = temperature + (char) 0x00B0 + "F " + condition;
    } else {
        weatherString = "It's dark at night.";
    }
    return weatherString;
}

---

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

private Bitmap downloadFile(String url) {
    Bitmap bmImg = null;/*from w w  w. j  av a 2  s . c  om*/
    URL myFileUrl = null;
    if (Util.isEmpty(url))
        return null;
    try {
        myFileUrl = new URL(url);
    } catch (MalformedURLException e) {

        e.printStackTrace();
    }
    try {
        HttpURLConnection conn = (HttpURLConnection) myFileUrl.openConnection();
        conn.setDoInput(true);
        conn.connect();
        InputStream is = conn.getInputStream();
        // BitmapFactory.Options op=new BitmapFactory.Options();
        // op.inSampleSize = 3;
        bmImg = BitmapFactory.decodeStream(is);// ,null,op);
        conn.disconnect();

    } catch (IOException e) {

        e.printStackTrace();
    }
    return bmImg;
}

---

From source file:com.juick.android.Utils.java

public static int doHttpGetRequest(String url) {
    try {/*  w  w w . j a v  a 2s . co  m*/
        HttpURLConnection conn = (HttpURLConnection) (new URL(url)).openConnection();
        conn.setUseCaches(false);
        conn.connect();
        int status = conn.getResponseCode();
        conn.disconnect();
        return status;
    } catch (Exception e) {
        Log.e("doHttpGetRequest", e.toString());
    }
    return 0;
}

---

From source file:libraryjava.parseJSON.java

/**
 * Bitmap//from  www. j  a v  a 2 s .c  o m
 * @param urll
 * @return Bitmap
 */
public Bitmap doInBackground(String urll) {
    StrictMode();

    try {

        URL url = new URL(urll);

        HttpURLConnection connection = (HttpURLConnection) url.openConnection();
        connection.setDoInput(true);
        connection.connect();

        InputStream input = connection.getInputStream();
        Bitmap myBitmap = BitmapFactory.decodeStream(input);

        return myBitmap;

    } catch (Exception ex) {
        return null;
    }
}

---

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