Example usage for java.net DatagramPacket getData

Introduction

In this page you can find the example usage for java.net DatagramPacket getData.

Prototype

public synchronized byte[] getData()

Source Link

Document

Returns the data buffer.

Usage

From source file:Main.java

public static void main(String args[]) {
    try {/*from  w w  w .jav a2 s. c om*/

        int port = 80;

        DatagramSocket ds = new DatagramSocket(port);

        while (true) {
            byte buffer[] = new byte[BUFSIZE];

            DatagramPacket dp = new DatagramPacket(buffer, buffer.length, InetAddress.getByName("google.com"),
                    8080);

            ds.receive(dp);

            String str = new String(dp.getData());

            System.out.println(str);
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
}

From source file:Main.java

public static void main(String args[]) {
    try {/*from  w w  w .  j a  v  a 2s  .  c o  m*/

        int port = 80;

        DatagramSocket ds = new DatagramSocket(port);

        while (true) {
            byte buffer[] = new byte[BUFSIZE];

            DatagramPacket dp = new DatagramPacket(buffer, 0, buffer.length,
                    InetAddress.getByName("google.com"), 8080);

            ds.receive(dp);

            String str = new String(dp.getData());

            System.out.println(str);
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
}

From source file:PacketReceiver.java

public static void main(String[] args) throws Exception {
    byte[] buffer = new byte[1024];
    DatagramPacket packet = new DatagramPacket(buffer, buffer.length);
    DatagramSocket socket = new DatagramSocket(5002);
    socket.receive(packet);/*w ww. jav a2 s.co m*/
    System.out.println(packet.getSocketAddress());
    buffer = packet.getData();
    System.out.println(new String(buffer));
}

From source file:Main.java

public static void main(String args[]) {
    try {/*from w ww .ja  v a2 s.  c o m*/

        int port = 80;

        DatagramSocket ds = new DatagramSocket(port);

        while (true) {
            byte buffer[] = new byte[BUFSIZE];

            DatagramPacket dp = new DatagramPacket(buffer, buffer.length,
                    InetSocketAddress.createUnresolved("google.com", 8080));

            ds.receive(dp);

            String str = new String(dp.getData());

            System.out.println(str);
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
}

From source file:GetDate.java

public static void main(String args[]) throws Exception {
    byte msg[] = new byte[256];
    DatagramSocket dgSocket = new DatagramSocket();
    InetAddress destination = InetAddress.getByName("web.mit.edu");
    DatagramPacket datagram = new DatagramPacket(msg, msg.length, destination, PortDayTime);
    dgSocket.send(datagram);/*from  w  w w. j  a  va2s  . com*/
    datagram = new DatagramPacket(msg, msg.length);
    dgSocket.receive(datagram);
    String received = new String(datagram.getData());
    System.out.println("The time in Cambridge is now: " + received);
    dgSocket.close();
}

From source file:UDP0.java

public static void main(String[] args) throws Exception {
    byte[] ary = new byte[128];
    DatagramPacket pack = new DatagramPacket(ary, 128);
    if (args[0].charAt(0) == 'r') {
        // read//from  w w w  . j a v a  2s  .c o  m
        DatagramSocket sock = new DatagramSocket(1111);
        sock.receive(pack);
        String word = new String(pack.getData());
        System.out.println("From: " + pack.getAddress() + " Port: " + pack.getPort());
        System.out.println(word);
        sock.close();
    } else { // write
        DatagramSocket sock = new DatagramSocket();
        pack.setAddress(InetAddress.getByName(args[1]));
        pack.setData(args[2].getBytes());
        pack.setPort(1111);
        sock.send(pack);
        sock.close();
    }
}

From source file:Main.java

public static void main(String args[]) throws IOException {
    String host = args[0];//from  w  w w .  j ava 2 s  .  c  o m
    byte message[] = new byte[256];
    InetAddress address = InetAddress.getByName(host);
    System.out.println("Checking at: " + address);
    DatagramPacket packet = new DatagramPacket(message, message.length, address, DAYTIME_PORT);
    DatagramSocket socket = new DatagramSocket();
    socket.send(packet);
    packet = new DatagramPacket(message, message.length);
    socket.receive(packet);
    String time = new String(packet.getData());
    System.out.println(time);
    socket.close();
}

From source file:ChatClient.java

public static void main(String[] args) throws Exception {
        int PORT = 4000;
        byte[] buf = new byte[1000];
        DatagramPacket dgp = new DatagramPacket(buf, buf.length);
        DatagramSocket sk;// w  w  w  . j  ava 2  s.  c om

        sk = new DatagramSocket(PORT);
        System.out.println("Server started");
        while (true) {
            sk.receive(dgp);
            String rcvd = new String(dgp.getData(), 0, dgp.getLength()) + ", from address: " + dgp.getAddress()
                    + ", port: " + dgp.getPort();
            System.out.println(rcvd);

            BufferedReader stdin = new BufferedReader(new InputStreamReader(System.in));
            String outMessage = stdin.readLine();
            buf = ("Server say: " + outMessage).getBytes();
            DatagramPacket out = new DatagramPacket(buf, buf.length, dgp.getAddress(), dgp.getPort());
            sk.send(out);
        }
    }

From source file:Main.java

public static void main(String[] args) {
    try {/*from  w w w . j a  v  a 2  s  . co  m*/
        byte[] buffer = new byte[1024];
        DatagramPacket packet = new DatagramPacket(buffer, buffer.length);

        DatagramSocket socket = new DatagramSocket(5002);

        System.out.println("Waiting for a packet...");
        socket.receive(packet);

        System.out.println("Just received packet from " + packet.getSocketAddress());
        buffer = packet.getData();

        System.out.println(new String(buffer));

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

From source file:UdpEchoClient.java

public static void main(String[] args) {
    InetAddress address;/*  w  ww .ja va 2  s  . c  o  m*/
    try {
        address = InetAddress.getByName(args[0]);
    } catch (UnknownHostException host) {
        System.out.println(host);
        return;
    }
    DatagramPacket pack = new DatagramPacket(testString.getBytes(), testString.length(), address, 7);
    DatagramPacket incoming = new DatagramPacket(new byte[256], 256);
    DatagramSocket sock = null;
    try {
        Calendar start, end;
        sock = new DatagramSocket();
        start = Calendar.getInstance();
        sock.send(pack);
        sock.setSoTimeout(5000);
        sock.receive(incoming);
        end = Calendar.getInstance();
        String reply = new String(incoming.getData());
        reply = reply.substring(0, testString.length());
        if (reply.equals(testString)) {
            System.out.println("Success");
            System.out.println("Time = " + (end.getTime().getTime() - start.getTime().getTime()) + "mS");
        } else
            System.out.println("Reply data did not match");
    } catch (SocketException socke) {
        System.out.println(socke);
    } catch (IOException ioe) {
        System.out.println(ioe);
    } finally {
        sock.close();
    }
}