Example usage for java.net URL openConnection

List of usage examples for java.net URL openConnection

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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:SendMail.java

public static void main(String[] args) {
    try {/*from   w  w w  . j  a va2s  .  c om*/
        // If the user specified a mailhost, tell the system about it.
        if (args.length >= 1)
            System.getProperties().put("mail.host", args[0]);

        // A Reader stream to read from the console
        BufferedReader in = new BufferedReader(new InputStreamReader(System.in));

        // Ask the user for the from, to, and subject lines
        System.out.print("From: ");
        String from = in.readLine();
        System.out.print("To: ");
        String to = in.readLine();
        System.out.print("Subject: ");
        String subject = in.readLine();

        // Establish a network connection for sending mail
        URL u = new URL("mailto:" + to); // Create a mailto: URL
        URLConnection c = u.openConnection(); // Create its URLConnection
        c.setDoInput(false); // Specify no input from it
        c.setDoOutput(true); // Specify we'll do output
        System.out.println("Connecting..."); // Tell the user
        System.out.flush(); // Tell them right now
        c.connect(); // Connect to mail host
        PrintWriter out = // Get output stream to host
                new PrintWriter(new OutputStreamWriter(c.getOutputStream()));

        // We're talking to the SMTP server now.
        // Write out mail headers. Don't let users fake the From address
        out.print("From: \"" + from + "\" <" + System.getProperty("user.name") + "@"
                + InetAddress.getLocalHost().getHostName() + ">\r\n");
        out.print("To: " + to + "\r\n");
        out.print("Subject: " + subject + "\r\n");
        out.print("\r\n"); // blank line to end the list of headers

        // Now ask the user to enter the body of the message
        System.out.println("Enter the message. " + "End with a '.' on a line by itself.");
        // Read message line by line and send it out.
        String line;
        for (;;) {
            line = in.readLine();
            if ((line == null) || line.equals("."))
                break;
            out.print(line + "\r\n");
        }

        // Close (and flush) the stream to terminate the message
        out.close();
        // Tell the user it was successfully sent.
        System.out.println("Message sent.");
    } catch (Exception e) { // Handle any exceptions, print error message.
        System.err.println(e);
        System.err.println("Usage: java SendMail [<mailhost>]");
    }
}

From source file:geocodingsql.Main.java

/**
 * @param args the command line arguments
 *///  w w  w.  j  a v a  2s . c  om
public static void main(String[] args) throws JSONException {
    Main x = new Main();
    ResultSet rs = null;
    String string = "";

    x.establishConnection();
    rs = x.giveName();

    try {
        while (rs.next()) {
            string += rs.getString(1) + " ";
        }

        JOptionPane.showMessageDialog(null, string, "authors", 1);
    } catch (Exception e) {
        System.out.println("Problem when printing the database.");
    }
    x.closeConnection();

    // Now do Geocoding
    String req = "https://maps.googleapis.com/maps/api/geocode/json?latlng=41.3166662867211,-72.9062497615814&result_type=point_of_interest&key="
            + key;
    try {
        URL url = new URL(req + "&sensor=false");
        URLConnection conn = url.openConnection();
        ByteArrayOutputStream output = new ByteArrayOutputStream(1024);
        IOUtils.copy(conn.getInputStream(), output);
        output.close();
        req = output.toString();
    } catch (Exception e) {
        System.out.println("Geocoding Error");
    }
    JSONObject jObject = new JSONObject(req);
    JSONArray resultArray = jObject.getJSONArray("results");
    //this prints out the neighborhood of the provided coordinates
    System.out.println(resultArray.getJSONObject(0).getJSONArray("address_components")
            .getJSONObject("neighborhood").getString("long_name"));
}

From source file:WebClient.java

public static void main(String[] args) throws Exception {
        CookieStore store = new MyCookieStore();
        CookiePolicy policy = new MyCookiePolicy();
        CookieManager handler = new CookieManager(store, policy);
        CookieHandler.setDefault(handler);
        URL url = new URL("http://localhost:8080/cookieTest.jsp");
        URLConnection conn = url.openConnection();

        InputStream in = conn.getInputStream();
        BufferedReader reader = new BufferedReader(new InputStreamReader(in));
        String input;/*from  w  w w .j  a v a  2 s.c  o  m*/
        while ((input = reader.readLine()) != null) {
            System.out.println(input);
        }
        reader.close();

    }

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  w  w  .j a v  a 2s. c om
        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:Base64Stuff.java

public static void main(String[] args) {
    //Random random = new Random();
    try {//w w w . j  a v a2  s .  com
        File file1 = new File("C:\\\\Program Files\\\\ImageJ\\\\images\\\\confocal-series-10001.tif");
        //File file2 = new File("C:\\Program Files\\ImageJ\\images\\confocal-series-10000.tif");
        ImagePlus image1 = new ImagePlus(
                "C:\\\\Program Files\\\\ImageJ\\\\images\\\\confocal-series-10001.tif");
        //ImagePlus image2 = new ImagePlus("C:\\Program Files\\ImageJ\\images\\two.tif");

        byte[] myBytes1 = org.apache.commons.io.FileUtils.readFileToByteArray(file1);
        //byte[] myBytes2 = org.apache.commons.io.FileUtils.readFileToByteArray(file2);
        //random.nextBytes(randomBytes);

        //String internalVersion1 = com.sun.org.apache.xerces.internal.impl.dv.util.Base64.encode(myBytes1);
        //String internalVersion2 = com.sun.org.apache.xerces.internal.impl.dv.util.Base64.encode(myBytes2);
        byte[] apacheBytes1 = org.apache.commons.codec.binary.Base64.encodeBase64(myBytes1);
        //byte[] apacheBytes2 =  org.apache.commons.codec.binary.Base64.encodeBase64(myBytes2);
        String string1 = new String(apacheBytes1);
        //String string2 = new String(apacheBytes2);

        System.out.println("File1 length:" + string1.length());
        //System.out.println("File2 length:" + string2.length());
        System.out.println(string1);
        //System.out.println(string2);

        System.out.println("Image1 size: (" + image1.getWidth() + "," + image1.getHeight() + ")");
        //System.out.println("Image2 size: (" + image2.getWidth() + "," + image2.getHeight() + ")");

        String urlParameters = "data=" + string1 + "&size=1000x1000";

        URL url = new URL("http://api.qrserver.com/v1/create-qr-code/");
        URLConnection conn = url.openConnection();

        conn.setDoOutput(true);

        OutputStreamWriter writer = new OutputStreamWriter(conn.getOutputStream());

        writer.write(urlParameters);
        writer.flush();

        //byte buf[] = new byte[700000000];

        BufferedInputStream reader = new BufferedInputStream(conn.getInputStream());
        BufferedOutputStream bos = new BufferedOutputStream(
                new FileOutputStream("C:\\Users\\expertoweb\\Desktop\\qrcode2.png"));

        int data;
        while ((data = reader.read()) != -1) {
            bos.write(data);
        }

        writer.close();
        reader.close();
        bos.close();

    } catch (IOException e) {
    }
}

From source file:com.maverick.ssl.SSLSocket.java

public static void main(String[] args) {

    try {//ww w  . ja v a2 s  .  com

        HttpsURLStreamHandlerFactory.addHTTPSSupport();

        URL url = new URL("https://localhost"); //$NON-NLS-1$

        URLConnection con = url.openConnection();
        con.setDoInput(true);
        con.setDoOutput(false);
        con.setAllowUserInteraction(false);

        con.setRequestProperty("Accept", //$NON-NLS-1$
                "image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/msword, application/x-shockwave-flash, */*"); //$NON-NLS-1$
        con.setRequestProperty("Accept-Encoding", "gzip, deflate"); //$NON-NLS-1$ //$NON-NLS-2$
        con.setRequestProperty("Accept-Language", "en-gb"); //$NON-NLS-1$ //$NON-NLS-2$
        con.setRequestProperty("Connection", "Keep-Alive"); //$NON-NLS-1$ //$NON-NLS-2$
        con.setRequestProperty("User-Agent", //$NON-NLS-1$
                "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 1.1.4322)"); //$NON-NLS-1$

        con.connect();

        InputStream in = con.getInputStream();
        int read;

        while ((read = in.read()) > -1) {
            System.out.write(read);
        }

    } catch (SSLIOException ex) {
        ex.getRealException().printStackTrace();
    } catch (IOException ex) {
        ex.printStackTrace();
    }

}

From source file:com.adobe.aem.demo.Analytics.java

public static void main(String[] args) {

    String hostname = null;/*from  w w  w  .  j  av  a2  s  . c om*/
    String url = null;
    String eventfile = null;

    // Command line options for this tool
    Options options = new Options();
    options.addOption("h", true, "Hostname");
    options.addOption("u", true, "Url");
    options.addOption("f", true, "Event data file");
    CommandLineParser parser = new BasicParser();
    try {
        CommandLine cmd = parser.parse(options, args);

        if (cmd.hasOption("u")) {
            url = cmd.getOptionValue("u");
        }

        if (cmd.hasOption("f")) {
            eventfile = cmd.getOptionValue("f");
        }

        if (cmd.hasOption("h")) {
            hostname = cmd.getOptionValue("h");
        }

        if (eventfile == null || hostname == null || url == null) {
            System.out.println("Command line parameters: -h hostname -u url -f path_to_XML_file");
            System.exit(-1);
        }

    } catch (ParseException ex) {

        logger.error(ex.getMessage());

    }

    URLConnection urlConn = null;
    DataOutputStream printout = null;
    BufferedReader input = null;
    String u = "http://" + hostname + "/" + url;
    String tmp = null;
    try {

        URL myurl = new URL(u);
        urlConn = myurl.openConnection();
        urlConn.setDoInput(true);
        urlConn.setDoOutput(true);
        urlConn.setUseCaches(false);
        urlConn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");

        printout = new DataOutputStream(urlConn.getOutputStream());

        String xml = readFile(eventfile, StandardCharsets.UTF_8);
        printout.writeBytes(xml);
        printout.flush();
        printout.close();

        input = new BufferedReader(new InputStreamReader(urlConn.getInputStream()));

        logger.debug(xml);
        while (null != ((tmp = input.readLine()))) {
            logger.debug(tmp);
        }
        printout.close();
        input.close();

    } catch (Exception ex) {

        logger.error(ex.getMessage());

    }

}

From source file:org.wso2.msf4j.example.SampleClient.java

public static void main(String[] args) throws IOException {
    HttpEntity messageEntity = createMessageForComplexForm();
    // Uncomment the required message body based on the method that want to be used
    //HttpEntity messageEntity = createMessageForMultipleFiles();
    //HttpEntity messageEntity = createMessageForSimpleFormStreaming();

    String serverUrl = "http://localhost:8080/formService/complexForm";
    // Uncomment the required service url based on the method that want to be used
    //String serverUrl = "http://localhost:8080/formService/multipleFiles";
    //String serverUrl = "http://localhost:8080/formService/simpleFormStreaming";

    URL url = URI.create(serverUrl).toURL();
    HttpURLConnection connection = (HttpURLConnection) url.openConnection();
    connection.setDoOutput(true);
    connection.setRequestMethod("POST");
    connection.setRequestProperty("Content-Type", messageEntity.getContentType().getValue());
    try (OutputStream out = connection.getOutputStream()) {
        messageEntity.writeTo(out);//  w  ww .ja va 2  s .  c  o m
    }

    InputStream inputStream = connection.getInputStream();
    String response = StreamUtil.asString(inputStream);
    IOUtils.closeQuietly(inputStream);
    connection.disconnect();
    System.out.println(response);

}

From source file:org.wso2.charon3.samples.user.sample01.CreateUserSample.java

public static void main(String[] args) {
    try {//  w w w. j  a va 2s  .  com
        String url = "http://localhost:8080/scim/v2/Users";
        URL obj = new URL(url);
        HttpURLConnection con = (HttpURLConnection) obj.openConnection();

        // Setting basic post request
        con.setRequestMethod("POST");
        con.setRequestProperty("Content-Type", "application/scim+json");

        // Send post request
        con.setDoOutput(true);
        DataOutputStream wr = new DataOutputStream(con.getOutputStream());
        wr.writeBytes(createRequestBody);
        wr.flush();
        wr.close();

        int responseCode = con.getResponseCode();

        BufferedReader in;
        if (responseCode == HttpURLConnection.HTTP_CREATED) { // success
            in = new BufferedReader(new InputStreamReader(con.getInputStream()));
        } else {
            in = new BufferedReader(new InputStreamReader(con.getErrorStream()));
        }
        String inputLine;
        StringBuffer response = new StringBuffer();

        while ((inputLine = in.readLine()) != null) {
            response.append(inputLine);
        }
        in.close();

        //printing result from response
        System.out.println("Response Code : " + responseCode);
        System.out.println("Response Message : " + con.getResponseMessage());
        System.out.println("Response Content : " + response.toString());

    } catch (ProtocolException e) {
        e.printStackTrace();
    } catch (MalformedURLException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    }
}

From source file:GcmSender.java

public static void main(String[] ar) {
    String message = "<Push message string here>";
    String to = "<Device token here>";
    try {/* ww w  .  j ava 2 s  . c o m*/
        // Prepare JSON containing the GCM message content. What to send and where to send.
        JSONObject jGcmData = new JSONObject();
        JSONObject jData = new JSONObject();
        try {
            jData.put("message", message.trim());

            // Where to send GCM message.
            if (to.length() != 0) {

                jGcmData.put("to", to.trim());

            } else {
                jGcmData.put("to", "/topics/global");
            }
            // What to send in GCM message.
            jGcmData.put("data", jData);
        } catch (JSONException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        // Create connection to send GCM Message request.
        URL url = new URL("https://android.googleapis.com/gcm/send");
        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
        conn.setRequestProperty("Authorization", "key=" + API_KEY);
        conn.setRequestProperty("Content-Type", "application/json");
        conn.setRequestMethod("POST");
        conn.setDoOutput(true);

        // Send GCM message content.
        OutputStream outputStream = conn.getOutputStream();
        outputStream.write(jGcmData.toString().getBytes());

        // Read GCM response.
        InputStream inputStream = conn.getInputStream();
        String resp = IOUtils.toString(inputStream);
        System.out.println(resp);
        System.out.println("Check your device/emulator for notification or logcat for "
                + "confirmation of the receipt of the GCM message.");
    } catch (IOException e) {
        System.out.println("Unable to send GCM message.");
        System.out.println("Please ensure that API_KEY has been replaced by the server "
                + "API key, and that the device's registration token is correct (if specified).");
        e.printStackTrace();
    }
}