Example usage for java.net HttpURLConnection connect

List of usage examples for java.net HttpURLConnection connect

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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:com.cloudera.earthquake.GetData.java

public static void main(String[] args) throws IOException {
    URL url = new URL("http://earthquake.usgs.gov/earthquakes/feed/v1.0/summary/all_month.csv");
    HttpURLConnection conn = (HttpURLConnection) url.openConnection();
    conn.connect();
    InputStream connStream = conn.getInputStream();

    FileSystem hdfs = FileSystem.get(new Configuration());
    FSDataOutputStream outStream = hdfs.create(new Path(args[0], "month.txt"));
    IOUtils.copy(connStream, outStream);

    outStream.close();//from  w w  w  .  j av  a  2s  .  c o  m
    connStream.close();
    conn.disconnect();
}

From source file:org.craftercms.cstudio.publishing.StopServiceMain.java

public static void main(String[] args) throws Exception {
    FileSystemXmlApplicationContext context = new FileSystemXmlApplicationContext(
            "classpath:spring/shutdown-context.xml");

    ReadablePropertyPlaceholderConfigurer properties = (ReadablePropertyPlaceholderConfigurer) context
            .getBean("cstudioShutdownProperties");
    if (properties != null) {
        String url = getProperty(properties, PROP_URL);
        String path = getProperty(properties, PROP_SERVICE_PATH);
        String port = getProperty(properties, PROP_PORT);
        String password = URLEncoder.encode(getProperty(properties, PROP_PASSWORD), "UTF-8");
        String target = url + ":" + port + path;
        if (LOGGER.isDebugEnabled()) {
            LOGGER.debug("Sending a stop request to " + target);
        }// w ww. j a va  2s .c  o m
        target = target + "?" + StopServiceServlet.PARAM_PASSWORD + "=" + password;
        URL serviceUrl = new URL(target);
        HttpURLConnection connection = (HttpURLConnection) serviceUrl.openConnection();
        connection.setRequestMethod("GET");
        connection.setReadTimeout(10000);
        connection.connect();
        try {
            connection.getContent();
        } catch (ConnectException e) {
            // ignore this error (server will terminate as soon as the request is sent out)
        }
    } else {
        if (LOGGER.isErrorEnabled()) {
            LOGGER.error(PROPERTIES_NAME + " is not present in shutdown-context.xml");
        }
    }
    context.close();
}

From source file:GoogleImages.java

public static void main(String[] args) throws InterruptedException {
    String searchTerm = "s woman"; // term to search for (use spaces to separate terms)
    int offset = 40; // we can only 20 results at a time - use this to offset and get more!
    String fileSize = "50mp"; // specify file size in mexapixels (S/M/L not figured out yet)
    String source = null; // string to save raw HTML source code

    // format spaces in URL to avoid problems
    searchTerm = searchTerm.replaceAll(" ", "%20");

    // get Google image search HTML source code; mostly built from PhyloWidget example:
    // http://code.google.com/p/phylowidget/source/browse/trunk/PhyloWidget/src/org/phylowidget/render/images/ImageSearcher.java
    int offset2 = 0;
    Set urlsss = new HashSet<String>();
    while (offset2 < 600) {
        try {// w w  w. j a va  2  s  . c o  m
            URL query = new URL("https://www.google.ru/search?start=" + offset2
                    + "&q=angry+woman&newwindow=1&client=opera&hs=bPE&source=lnms&tbm=isch&sa=X&ved=0ahUKEwiAgcKozIfNAhWoHJoKHSb_AUoQ_AUIBygB&biw=1517&bih=731&dpr=0.9#imgrc=G_1tH3YOPcc8KM%3A");
            HttpURLConnection urlc = (HttpURLConnection) query.openConnection(); // start connection...
            urlc.setInstanceFollowRedirects(true);
            urlc.setRequestProperty("User-Agent", "");
            urlc.connect();
            BufferedReader in = new BufferedReader(new InputStreamReader(urlc.getInputStream())); // stream in HTTP source to file
            StringBuffer response = new StringBuffer();
            char[] buffer = new char[1024];
            while (true) {
                int charsRead = in.read(buffer);
                if (charsRead == -1) {
                    break;
                }
                response.append(buffer, 0, charsRead);
            }
            in.close(); // close input stream (also closes network connection)
            source = response.toString();
        } // any problems connecting? let us know
        catch (Exception e) {
            e.printStackTrace();
        }

        // print full source code (for debugging)
        // println(source);
        // extract image URLs only, starting with 'imgurl'
        if (source != null) {
            //                System.out.println(source);
            int c = StringUtils.countMatches(source, "http://www.vmir.su");
            System.out.println(c);
            int index = source.indexOf("src=");
            System.out.println(source.subSequence(index, index + 200));
            while (index >= 0) {
                System.out.println(index);
                index = source.indexOf("src=", index + 1);
                if (index == -1) {
                    break;
                }
                String rr = source.substring(index,
                        index + 200 > source.length() ? source.length() : index + 200);

                if (rr.contains("\"")) {
                    rr = rr.substring(5, rr.indexOf("\"", 5));
                }
                System.out.println(rr);
                urlsss.add(rr);
            }
        }
        offset2 += 20;
        Thread.sleep(1000);
        System.out.println("off set = " + offset2);

    }

    System.out.println(urlsss);
    urlsss.forEach(new Consumer<String>() {

        public void accept(String s) {
            try {
                saveImage(s, "C:\\Users\\Java\\Desktop\\ang\\" + UUID.randomUUID().toString() + ".jpg");
            } catch (IOException ex) {
                Logger.getLogger(GoogleImages.class.getName()).log(Level.SEVERE, null, ex);
            }
        }
    });
    //            String[][] m = matchAll(source, "img height=\"\\d+\" src=\"([^\"]+)\"");

    // older regex, no longer working but left for posterity
    // built partially from: http://www.mkyong.com/regular-expressions/how-to-validate-image-file-extension-with-regular-expression
    // String[][] m = matchAll(source, "imgurl=(.*?\\.(?i)(jpg|jpeg|png|gif|bmp|tif|tiff))");    // (?i) means case-insensitive
    //            for (int i = 0; i < m.length; i++) {                                                          // iterate all results of the match
    //                println(i + ":\t" + m[i][1]);                                                         // print (or store them)**
    //            }
}

From source file:ru.apertum.qsystem.client.forms.FAdmin.java

/**
     * @param args the command line arguments
     * @throws Exception// w ww  .j  av  a  2s.c  o  m
     */
    public static void main(String args[]) throws Exception {
        QLog.initial(args, 3);
        Locale.setDefault(Locales.getInstance().getLangCurrent());

        //?  ? , ? 
        final Thread tPager = new Thread(() -> {
            FAbout.loadVersionSt();
            String result = "";
            try {
                final URL url = new URL(PAGER_URL + "/qskyapi/getpagerdata?qsysver=" + FAbout.VERSION_);
                final HttpURLConnection conn = (HttpURLConnection) url.openConnection();
                conn.setRequestProperty("User-Agent", "Java bot");
                conn.connect();
                final int code = conn.getResponseCode();
                if (code == 200) {
                    try (BufferedReader in = new BufferedReader(
                            new InputStreamReader(conn.getInputStream(), "utf8"))) {
                        String inputLine;
                        while ((inputLine = in.readLine()) != null) {
                            result += inputLine;
                        }
                    }
                }
                conn.disconnect();
            } catch (Exception e) {
                System.err.println("Pager not enabled. " + e);
                return;
            }
            final Gson gson = GsonPool.getInstance().borrowGson();
            try {
                final Answer answer = gson.fromJson(result, Answer.class);
                forPager = answer;
                if (answer.getData().size() > 0) {
                    forPager.start();
                }
            } catch (Exception e) {
                System.err.println("Pager not enabled but working. " + e);
            } finally {
                GsonPool.getInstance().returnGson(gson);
            }
        });
        tPager.setDaemon(true);
        tPager.start();

        Uses.startSplash();
        //     plugins
        Uses.loadPlugins("./plugins/");
        //      ?.
        FLogin.logining(QUserList.getInstance(), null, true, 3, FLogin.LEVEL_ADMIN);
        Uses.showSplash();
        java.awt.EventQueue.invokeLater(() -> {
            try {
                for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager
                        .getInstalledLookAndFeels()) {
                    System.out.println(info.getName());
                    /*Metal Nimbus CDE/Motif Windows   Windows Classic  //GTK+*/
                    if ("Windows".equals(info.getName())) {
                        javax.swing.UIManager.setLookAndFeel(info.getClassName());
                        break;
                    }
                }
                if ("/".equals(File.separator)) {
                    final FontUIResource f = new FontUIResource(new Font("Serif", Font.PLAIN, 10));
                    final Enumeration<Object> keys = UIManager.getDefaults().keys();
                    while (keys.hasMoreElements()) {
                        final Object key = keys.nextElement();
                        final Object value = UIManager.get(key);
                        if (value instanceof FontUIResource) {
                            final FontUIResource orig = (FontUIResource) value;
                            final Font font1 = new Font(f.getFontName(), orig.getStyle(), f.getSize());
                            UIManager.put(key, new FontUIResource(font1));
                        }
                    }
                }
            } catch (ClassNotFoundException | InstantiationException | IllegalAccessException
                    | UnsupportedLookAndFeelException ex) {
            }
            try {
                form = new FAdmin();
                if (forPager != null) {
                    forPager.showData(false);
                } else {
                    form.panelPager.setVisible(false);
                }
                form.setVisible(true);
            } catch (Exception ex) {
                QLog.l().logger().error(" ? ??  . ", ex);
            } finally {
                Uses.closeSplash();
            }
        });
    }

From source file:WebReader.java

static void getData(String address) throws Exception {
    URL page = new URL(address);
    StringBuffer text = new StringBuffer();
    HttpURLConnection conn = (HttpURLConnection) page.openConnection();
    conn.connect();
    InputStreamReader in = new InputStreamReader((InputStream) conn.getContent());

    BufferedReader buff = new BufferedReader(in);
    String line = buff.readLine();
    while (line != null) {
        text.append(line + "\n");
        line = buff.readLine();// ww  w .  j a v a 2  s . co  m
    }
    System.out.println(text.toString());
}

From source file:Main.java

public static InputStream getIS(String address) {
    InputStream is = null;//from  w  w w .j av a  2s  .c  o  m
    try {
        URL url = new URL(address);
        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
        conn.setDoInput(true);
        conn.connect();
        is = conn.getInputStream();
    } catch (Exception e) {
        e.printStackTrace();
    }
    return is;
}

From source file:Main.java

/**
 * Send the Http's request with the address of url
 * @param String url/* w  ww .j a  va2  s . c  om*/
 * @return String
 */
public static String getHttpRequest(String url) {
    //should use the StringBuilder or StringBuffer, String is not used.
    StringBuffer jsonContent = new StringBuffer();
    try {
        URL getUrl = new URL(url);
        HttpURLConnection connection = (HttpURLConnection) getUrl.openConnection();
        connection.connect();
        //Getting the inputting stream, and then read the stream.
        BufferedReader reader = new BufferedReader(new InputStreamReader(connection.getInputStream()));
        String lines = "";
        while ((lines = reader.readLine()) != null) {
            jsonContent.append(lines);
        }
        reader.close();
        connection.disconnect();
    } catch (Exception e) {
        e.printStackTrace();
    }
    //ScanningActivity.log("getHttpRequest(): " + content);
    //BooksPutIn.log("getHttpRequest(): " + content);
    return jsonContent.toString();
}

From source file:Main.java

public static Bitmap getBitmapFromRemote(String address) {
    Bitmap bitmap = null;//from www.j  ava2 s  . co  m
    try {
        URL url = new URL(address);
        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
        conn.setDoInput(true);
        conn.connect();
        InputStream is = conn.getInputStream();
        bitmap = BitmapFactory.decodeStream(is);
    } catch (MalformedURLException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    }
    return bitmap;
}

From source file:Main.java

private static int safelyConnect(HttpURLConnection connection) throws IOException {
    try {//from   w w w  .  j a v a  2s .c  o  m
        connection.connect();
    } catch (NullPointerException e) {
        // this is an Android bug: http://code.google.com/p/android/issues/detail?id=16895
        throw new IOException(e);
    } catch (IllegalArgumentException e) {
        // this is an Android bug: http://code.google.com/p/android/issues/detail?id=16895
        throw new IOException(e);
    } catch (IndexOutOfBoundsException e) {
        // this is an Android bug: http://code.google.com/p/android/issues/detail?id=16895
        throw new IOException(e);
    } catch (SecurityException e) {
        // this is an Android bug: http://code.google.com/p/android/issues/detail?id=16895
        throw new IOException(e);
    }
    try {
        return connection.getResponseCode();
    } catch (NullPointerException e) {
        // this is maybe this Android bug: http://code.google.com/p/android/issues/detail?id=15554
        throw new IOException(e);
    } catch (StringIndexOutOfBoundsException e) {
        // this is maybe this Android bug: http://code.google.com/p/android/issues/detail?id=15554
        throw new IOException(e);
    } catch (IllegalArgumentException e) {
        // this is maybe this Android bug: http://code.google.com/p/android/issues/detail?id=15554
        throw new IOException(e);
    }
}

From source file:Main.java

private static InputStream OpenHttpConnection(String strURL, Boolean cache) throws IOException {
    InputStream inputStream = null;

    try {//from   w w  w.j a va 2s . c  o  m
        URL url = new URL(strURL);
        URLConnection conn = url.openConnection();
        conn.setUseCaches(cache);
        HttpURLConnection httpConn = (HttpURLConnection) conn;
        httpConn.setRequestMethod("GET");
        httpConn.connect();

        if (httpConn.getResponseCode() == HttpURLConnection.HTTP_OK)
            inputStream = httpConn.getInputStream();

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