Example usage for java.net URL openConnection

Introduction

In this page you can find the example usage for java.net URL openConnection.

Prototype

public URLConnection openConnection() throws java.io.IOException

Source Link

Document

Returns a java.net.URLConnection URLConnection instance that represents a connection to the remote object referred to by the URL .

Usage

From source file:commonUtils.CommonUtils.java

public static boolean IsExistsLink(String inputLink) {
    try {/*from   ww  w . j  a  va 2s.com*/
        URL url = new URL(inputLink);
        HttpURLConnection huc = (HttpURLConnection) url.openConnection();
        huc.setRequestMethod("GET");
        huc.connect();
        System.out.println(huc.getResponseCode());
        if (huc.getResponseCode() == 200) {
            return true;
        }

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

From source file:javarestart.Utils.java

private static String getText(final URL url) throws IOException {
    final URLConnection connection = url.openConnection();
    try (LineNumberReader in = new LineNumberReader(
            new InputStreamReader(connection.getInputStream(), Charset.forName("UTF-8")))) {

        final StringBuilder response = new StringBuilder();
        String inputLine;/*from   w w w.  ja v  a2s.  co m*/
        while ((inputLine = in.readLine()) != null) {
            response.append(inputLine);
        }

        return response.toString();
    }
}

From source file:Main.java

/**
 * This method fetches data from a given url
 *
 * @param strUrl Url from which the data will be fetched
 * @return A String representing the resource obtained in the connection
 * @throws IOException If something went wrong with the connection
 *//*from  w  w  w.  j a  v  a2  s. c  o m*/
public static String getDataFromUrl(String strUrl) throws IOException {
    InputStream iStream;
    HttpURLConnection urlConnection;
    URL url = new URL(strUrl);

    // Creating an http connection to communicate with url
    urlConnection = (HttpURLConnection) url.openConnection();

    // Connecting to url
    urlConnection.connect();

    // Reading data from url
    iStream = urlConnection.getInputStream();

    BufferedReader br = new BufferedReader(new InputStreamReader(iStream));

    StringBuilder sb = new StringBuilder();

    String line;
    while ((line = br.readLine()) != null) {
        sb.append(line);
    }
    br.close();
    iStream.close();
    urlConnection.disconnect();
    return sb.toString();
}

From source file:Main.java

public static InputStream getHTTPInputStream(String url) {
    try {// w w  w  .  j  a  v  a  2  s . com
        URL urlObj = null;
        urlObj = new URL(url);

        HttpURLConnection urlConnection = null;

        urlConnection = (HttpURLConnection) urlObj.openConnection();

        urlConnection.connect();

        int response = urlConnection.getResponseCode();

        if (response != 200) {
            return null;
        }

        return urlConnection.getInputStream();
    } catch (IOException e) {
        e.printStackTrace();
        return null;
    }
}

From source file:com.tnc.android.graphite.utils.GraphiteConnection.java

public static DrawableGraph getGraph(String serverUrl, String ps) throws Exception {
    URL url = new URL(serverUrl + GRAPH_PARAM_STRING + ps);
    HttpURLConnection http = (HttpURLConnection) url.openConnection();
    http.setConnectTimeout(45000);/*from  ww  w  . ja va 2s.c  om*/
    http.setReadTimeout(45000);
    Drawable image = Drawable.createFromStream(http.getInputStream(), null);
    DrawableGraph dg = new DrawableGraph();
    dg.setImage(image);
    return dg;
}

From source file:fr.ign.cogit.geoxygene.appli.gl.program.GLProgramBuilder.java

private static boolean testURLValid(URL url) throws IOException {
    URLConnection huc = url.openConnection();
    try {/*  w w  w  . j  a  v  a2 s . c  o  m*/
        huc.connect();
        return true;
    } catch (IOException e) {
        return false;
    }
}

From source file:$.FileUtils.java

public static void urlToPath(URL url, File fOut) throws IOException {
        URLConnection uc = url.openConnection();
        logger.info("ContentType: " + uc.getContentType());
        InputStream in = uc.getInputStream();
        org.apache.commons.io.FileUtils.copyInputStreamToFile(in, fOut);
        logger.info("File of length " + fOut.length() + " created from URL " + url.toString());
        in.close();/*  w  w  w.ja v  a 2s. c om*/
    }

From source file:com.publicuhc.pluginframework.util.UUIDFetcher.java

protected static HttpURLConnection getConnection() throws IOException {
    URL url = new URL(PROFILE_URL);
    HttpURLConnection connection = (HttpURLConnection) url.openConnection();

    connection.setRequestMethod("POST");
    connection.setRequestProperty("Content-Type", "application/json");

    connection.setUseCaches(false);//from  ww w.j a va2 s  . c  o m
    connection.setDoInput(true);
    connection.setDoOutput(true);

    return connection;
}

From source file:dataHandlers.AccessFacebook.java

private static List<String> extractArtistFromPost(List<Post> postList, User user) {
    List<String> recentArtistList = new ArrayList<>();
    int postCount = 0;
    int maxPostCount = GlobalParam.getPostCountPerUser();
    LOGGER.log(Level.WARNING, "Some music information may not contain artist information");
    for (Post post : postList) {
        String stringURL = BASE_URL + post.getId() + "/attachments?access_token="
                + ((UserFacebook) user).getAccessToken();
        try {/*ww w  .  j  a  va  2 s  .c om*/
            URL url = new URL(stringURL);
            URLConnection respons = url.openConnection();
            String stringRespons = responsToString(respons);
            JSONArray jArray = new JSONArray(stringRespons.substring(8, stringRespons.length() - 1));
            JSONObject dataObject = jArray.getJSONObject(0);
            recentArtistList.add(dataObject.getString("description"));
            postCount++;
        } catch (IOException e) {
            LOGGER.log(Level.INFO, "Responce for " + post.getId() + " is broken or unavailable");
        } catch (Exception e) {
            LOGGER.log(Level.INFO, "Post " + post.getId() + " dose not contains any aritist information");
        }
    }
    return recentArtistList;
}

From source file:be.roots.taconic.pricingguide.util.HttpUtil.java

private static HttpURLConnection getInputStreamFor(String urlAsString, String userName, String password)
        throws IOException {
    LOGGER.info(/* ww  w .  jav a2 s  . c om*/
            REQUEST_METHOD + "ting data from url: " + urlAsString + " with timeout set to " + CONNECT_TIMEOUT);

    final URL url = new URL(urlAsString);
    final HttpURLConnection con = (HttpURLConnection) url.openConnection();
    con.setRequestMethod(REQUEST_METHOD);
    con.setConnectTimeout(CONNECT_TIMEOUT);

    if (userName != null || password != null) {
        final String encoded = Base64.encode(userName + ":" + password);
        con.setRequestProperty("Authorization", "Basic " + encoded);
    }

    final int responseCode = con.getResponseCode();

    LOGGER.info("Response code: " + responseCode);
    return con;
}