Example usage for java.net HttpURLConnection setInstanceFollowRedirects

Introduction

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

Prototype

public void setInstanceFollowRedirects(boolean followRedirects) 

Source Link

Document

Sets whether HTTP redirects (requests with response code 3xx) should be automatically followed by this HttpURLConnection instance.

Usage

From source file:org.osmdroid.location.FourSquareProvider.java

public static void browse(final Context context, POI poi) {
    // get the right url from redirect, could also parse the result from querying venueid...
    new AsyncTask<POI, Void, String>() {

        @Override/*  w  w  w . j  a v a 2s .  c  om*/
        protected String doInBackground(POI... params) {
            POI poi = params[0];
            if (poi == null)
                return null;
            try {
                URL url = new URL(poi.url);
                HttpURLConnection conn = (HttpURLConnection) url.openConnection();
                conn.setInstanceFollowRedirects(false);

                String redirect = conn.getHeaderField("Location");
                if (redirect != null) {
                    Log.d(BonusPackHelper.LOG_TAG, redirect);
                    return redirect;
                }
            } catch (MalformedURLException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            }

            return null;
        }

        @Override
        protected void onPostExecute(String result) {
            if (result == null)
                return;

            Intent myIntent = new Intent(Intent.ACTION_VIEW, Uri.parse("https://foursquare.com" + result));
            context.startActivity(myIntent);

        }
    }.execute(poi);

}

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From source file:org.jvnet.hudson.update_center.ConfluencePluginList.java

private static HttpURLConnection connect(String url, String sessionId) throws IOException {
    HttpURLConnection huc = (HttpURLConnection) new URL(url).openConnection();
    huc.setInstanceFollowRedirects(false);
    huc.setDoOutput(false);// www  . jav  a 2  s  .  co m
    if (sessionId != null)
        huc.addRequestProperty("Cookie", sessionId);
    InputStream i = huc.getInputStream();
    while (i.read() >= 0)
        ; // Drain stream
    return huc;
}

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From source file:Main.java

/**
 * Given a string url, connects and returns response code
 *
 * @param urlString       string to fetch
 * @param readTimeOutMs       read time out
 * @param connectionTimeOutMs       connection time out
 * @param urlRedirect       should use urlRedirect
 * @param useCaches       should use cache
 * @return httpResponseCode http response code
 * @throws IOException/*from  ww  w . j a v a 2  s  .co  m*/
 */

public static int checkUrlWithOptions(String urlString, int readTimeOutMs, int connectionTimeOutMs,
        boolean urlRedirect, boolean useCaches) throws IOException {
    URL url = new URL(urlString);
    HttpURLConnection connection = (HttpURLConnection) url.openConnection();
    connection.setReadTimeout(readTimeOutMs /* milliseconds */);
    connection.setConnectTimeout(connectionTimeOutMs /* milliseconds */);
    connection.setRequestMethod("GET");
    connection.setInstanceFollowRedirects(urlRedirect);
    connection.setUseCaches(useCaches);
    // Starts the query
    connection.connect();
    int responseCode = connection.getResponseCode();
    connection.disconnect();
    return responseCode;
}

---

From source file:org.lightjason.agentspeak.action.buildin.rest.IBaseRest.java

/**
 * creates a HTTP connection and reads the data
 *
 * @param p_url url/*from w  w w .jav a 2  s  .  c  o m*/
 * @return url data
 * @throws IOException is thrown on connection errors
 */
private static String httpdata(final String p_url) throws IOException {
    final HttpURLConnection l_connection = (HttpURLConnection) new URL(p_url).openConnection();

    // follow HTTP redirects
    l_connection.setInstanceFollowRedirects(true);

    // set a HTTP-User-Agent if not exists
    l_connection.setRequestProperty("User-Agent",
            (System.getProperty("http.agent") == null) || (System.getProperty("http.agent").isEmpty())
                    ? CCommon.PACKAGEROOT + CCommon.configuration().getString("version")
                    : System.getProperty("http.agent"));

    // read stream data
    final InputStream l_stream = l_connection.getInputStream();
    final String l_return = CharStreams.toString(new InputStreamReader(l_stream,
            (l_connection.getContentEncoding() == null) || (l_connection.getContentEncoding().isEmpty())
                    ? Charsets.UTF_8
                    : Charset.forName(l_connection.getContentEncoding())));
    Closeables.closeQuietly(l_stream);

    return l_return;
}

---

From source file:org.lightjason.agentspeak.action.builtin.rest.IBaseRest.java

/**
 * creates a HTTP connection and reads the data
 *
 * @param p_url url/*  w  w w. j a  va  2  s  .  com*/
 * @return url data
 *
 * @throws IOException is thrown on connection errors
 */
@Nonnull
private static String httpdata(@Nonnull final String p_url) throws IOException {
    final HttpURLConnection l_connection = (HttpURLConnection) new URL(p_url).openConnection();

    // follow HTTP redirects
    l_connection.setInstanceFollowRedirects(true);

    // set a HTTP-User-Agent if not exists
    l_connection.setRequestProperty("User-Agent",
            (System.getProperty("http.agent") == null) || (System.getProperty("http.agent").isEmpty())
                    ? CCommon.PACKAGEROOT + CCommon.configuration().getString("version")
                    : System.getProperty("http.agent"));

    // read stream data
    final InputStream l_stream = l_connection.getInputStream();
    final String l_return = CharStreams.toString(new InputStreamReader(l_stream,
            (l_connection.getContentEncoding() == null) || (l_connection.getContentEncoding().isEmpty())
                    ? Charsets.UTF_8
                    : Charset.forName(l_connection.getContentEncoding())));
    Closeables.closeQuietly(l_stream);

    return l_return;
}

---

From source file:Main.java

/**
 * Given a string url, connects and returns response code
 *
 * @param urlString       string to fetch
 * @param network       network//from w  w  w.  j  av a  2  s . com
 * @param readTimeOutMs       read time out
 * @param connectionTimeOutMs       connection time out
 * @param urlRedirect       should use urlRedirect
 * @param useCaches       should use cache
 * @return httpResponseCode http response code
 * @throws IOException
 */

@TargetApi(LOLLIPOP)
public static int checkUrlWithOptionsOverNetwork(String urlString, Network network, int readTimeOutMs,
        int connectionTimeOutMs, boolean urlRedirect, boolean useCaches) throws IOException {
    if (network == null) {
        return -1;
    }
    URL url = new URL(urlString);
    HttpURLConnection connection = (HttpURLConnection) network.openConnection(url);
    connection.setReadTimeout(readTimeOutMs /* milliseconds */);
    connection.setConnectTimeout(connectionTimeOutMs /* milliseconds */);
    connection.setRequestMethod("GET");
    connection.setInstanceFollowRedirects(urlRedirect);
    connection.setUseCaches(useCaches);
    // Starts the query
    connection.connect();
    int responseCode = connection.getResponseCode();
    connection.disconnect();
    return responseCode;
}

---

From source file:jmc.util.UtlFbComents.java

public static String getJSONComentarios(String url, Long numComents) throws JMCException {
    String linea = "";
    String buf = "";

    try {// w w w . j av a 2  s.c o  m
        Properties props = ConfigPropiedades.getProperties("props_config.properties");
        CookieHandler.setDefault(new CookieManager(null, CookiePolicy.ACCEPT_ALL));
        URL ur = new URL(
                "http://graph.facebook.com/comments?id=" + url + "&limit=" + numComents + "&filter=stream");
        HttpURLConnection cn = (HttpURLConnection) ur.openConnection();

        cn.setRequestProperty("user-agent", props.getProperty("navegador"));
        cn.setInstanceFollowRedirects(false);
        cn.setUseCaches(false);
        cn.connect();

        BufferedReader br = new BufferedReader(new InputStreamReader(cn.getInputStream()));

        while ((linea = br.readLine()) != null) {
            buf.concat(linea);
        }
        cn.disconnect();

    } catch (IOException e) {
        throw new JMCException(e);
    }
    return buf;
}

---

From source file:com.vinexs.tool.NetworkManager.java

public static void haveInternet(Context context, final OnInternetResponseListener listener) {
    if (!haveNetwork(context)) {
        listener.onResponsed(false);// w  w w .  ja va  2s.c  o  m
        return;
    }
    Log.d("Network", "Check internet is reachable ...");
    new AsyncTask<Void, Integer, Boolean>() {
        @Override
        protected Boolean doInBackground(Void... params) {
            try {
                InetAddress ipAddr = InetAddress.getByName("google.com");
                if (ipAddr.toString().equals("")) {
                    throw new Exception("Cannot resolve host name, no internet behind network.");
                }
                HttpURLConnection conn = (HttpURLConnection) new URL("http://google.com/").openConnection();
                conn.setInstanceFollowRedirects(false);
                conn.setConnectTimeout(3500);
                conn.setDoInput(true);
                conn.setDoOutput(true);
                conn.setRequestMethod("POST");
                DataOutputStream postOutputStream = new DataOutputStream(conn.getOutputStream());
                postOutputStream.write('\n');
                postOutputStream.close();
                conn.disconnect();
                Log.d("Network", "Internet is reachable.");
                return true;
            } catch (Exception e) {
                e.printStackTrace();
            }
            Log.d("Network", "Internet is unreachable.");
            return false;
        }

        @Override
        protected void onPostExecute(Boolean result) {
            listener.onResponsed(result);
        }
    }.execute();
}

---

From source file:qurandwnld.SyncDbHelper.java

public static ServerResponse sendMySelectionsToServer(String username, String password) throws Exception {
    String urlParameters = String.format("username=%s&password=%s&xmlData=%s",
            URLEncoder.encode(username, "UTF-8"), URLEncoder.encode(password, "UTF-8"),
            URLEncoder.encode(getSendXml(), "UTF-8"));
    byte[] postData = urlParameters.getBytes(StandardCharsets.UTF_8);
    int postDataLength = postData.length;
    String request = "http://localhost:55622/Server/SubmitUserSelections";
    URL url = new URL(request);
    HttpURLConnection conn = (HttpURLConnection) url.openConnection();
    conn.setDoOutput(true);/*from w  ww .j  av  a  2s . com*/
    conn.setInstanceFollowRedirects(false);
    conn.setRequestMethod("POST");
    conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
    conn.setRequestProperty("charset", "utf-8");
    conn.setRequestProperty("Content-Length", Integer.toString(postDataLength));
    conn.setUseCaches(false);
    try (DataOutputStream wr = new DataOutputStream(conn.getOutputStream())) {
        wr.write(postData);
    }
    Reader in = new BufferedReader(new InputStreamReader(conn.getInputStream(), "UTF-8"));
    StringBuilder json = new StringBuilder();
    for (int c = in.read(); c != -1; c = in.read())
        json.append((char) c);
    JSONObject obj = new JSONObject(json.toString());
    ServerResponse res = new ServerResponse();
    res.code = obj.getInt("Code");
    res.message = obj.getString("Message");
    return res;
}

---

From source file:Main.java

static InputStream openRemoteInputStream(Uri uri) {
    URL finalUrl;/*from  ww w . jav a  2 s  .  c  o m*/
    try {
        finalUrl = new URL(uri.toString());
    } catch (MalformedURLException e) {
        e.printStackTrace();
        return null;
    }
    HttpURLConnection connection;
    try {
        connection = (HttpURLConnection) finalUrl.openConnection();
    } catch (IOException e) {
        e.printStackTrace();
        return null;
    }

    connection.setInstanceFollowRedirects(false);
    int code;
    try {
        code = connection.getResponseCode();
    } catch (IOException e) {
        e.printStackTrace();
        return null;
    }

    if ((code == 301) || (code == 302) || (code == 303)) {
        String newLocation = connection.getHeaderField("Location");
        return openRemoteInputStream(Uri.parse(newLocation));
    }
    try {
        return (InputStream) finalUrl.getContent();
    } catch (IOException e) {
        e.printStackTrace();
    }
    return null;
}

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