Example usage for java.net DatagramPacket getAddress

Introduction

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

Prototype

public synchronized InetAddress getAddress() 

Source Link

Document

Returns the IP address of the machine to which this datagram is being sent or from which the datagram was received.

Usage

From source file:Main.java

public static void main(String[] args) throws Exception {
    DatagramSocket ds = new DatagramSocket(3000);
    byte[] buf = new byte[1024];
    DatagramPacket dp = new DatagramPacket(buf, 1024);
    ds.receive(dp);//from   w w w  .ja va  2  s .  c om
    String strRecv = new String(dp.getData(), 0, dp.getLength()) + " from " + dp.getAddress().getHostAddress()
            + ":" + dp.getPort();
    System.out.println(strRecv);
    ds.close();
}

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From source file:Main.java

public static void main(String args[]) {
    try {/*from w w w  . ja  va2 s  .co  m*/

        int port = 80;

        DatagramSocket ds = new DatagramSocket(port);

        byte buffer[] = new byte[BUFSIZE];

        while (true) {

            DatagramPacket dp = new DatagramPacket(buffer, buffer.length);
            // Receive data
            ds.receive(dp);
            // Display address from the datagram packet
            InetAddress ia = dp.getAddress();
            System.out.println(ia);

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

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From source file:Main.java

public static void main(String args[]) {
    try {//from   w  w w .  ja va 2  s  .  co m

        int port = 80;

        DatagramSocket ds = new DatagramSocket(port);

        byte buffer[] = new byte[BUFSIZE];

        while (true) {

            DatagramPacket dp = new DatagramPacket(buffer, buffer.length);
            // Receive data
            ds.receive(dp);
            // Display address from the datagram packet
            InetAddress ia = dp.getAddress();
            System.out.println(ia);
            // Display port from the datagram packet
            System.out.println(dp.getPort());
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
}

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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);

        byte buffer[] = new byte[BUFSIZE];

        while (true) {

            DatagramPacket dp = new DatagramPacket(buffer, buffer.length);
            // Receive data
            ds.receive(dp);
            // Display address from the datagram packet
            InetAddress ia = dp.getAddress();
            System.out.println(ia);

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

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From source file:Main.java

public static void main(String args[]) {
    try {//  ww  w .j  a v a  2  s. c  om

        int port = 80;

        DatagramSocket ds = new DatagramSocket(port);

        byte buffer[] = new byte[BUFSIZE];

        while (true) {

            DatagramPacket dp = new DatagramPacket(buffer, buffer.length);
            // Receive data
            ds.receive(dp);
            // Display address from the datagram packet
            InetAddress ia = dp.getAddress();
            System.out.println(ia);

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

---

From source file:Main.java

public static void main(String args[]) {
    try {/*from www. j av  a2  s  .c  o  m*/

        int port = 80;

        DatagramSocket ds = new DatagramSocket(port);

        byte buffer[] = new byte[BUFSIZE];

        while (true) {

            DatagramPacket dp = new DatagramPacket(buffer, buffer.length);
            // Receive data
            ds.receive(dp);
            // Display address from the datagram packet
            InetAddress ia = dp.getAddress();
            System.out.println(ia);

            dp.setData(buffer);
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
}

---

From source file:Main.java

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

        int port = 80;

        DatagramSocket ds = new DatagramSocket(port);

        byte buffer[] = new byte[BUFSIZE];

        while (true) {

            DatagramPacket dp = new DatagramPacket(buffer, buffer.length);
            // Receive data
            ds.receive(dp);
            // Display address from the datagram packet
            InetAddress ia = dp.getAddress();
            System.out.println(ia);

            dp.setSocketAddress(InetSocketAddress.createUnresolved("google.com", 8080));
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
}

---

From source file:Main.java

public static void main(String args[]) {
    try {// w w  w. ja v  a  2  s .co m

        int port = 80;

        DatagramSocket ds = new DatagramSocket(port);

        byte buffer[] = new byte[BUFSIZE];

        while (true) {

            DatagramPacket dp = new DatagramPacket(buffer, buffer.length);
            // Receive data
            ds.receive(dp);
            // Display address from the datagram packet
            InetAddress ia = dp.getAddress();
            System.out.println(ia);

            buffer = new byte[] { 1, 2, 3, 4, 5, 6, 7, 8, 9 };

            dp.setData(buffer, 2, 5);
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
}

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From source file:Main.java

public static void main(String[] args) throws Exception {
    byte[] ary = new byte[128];
    DatagramPacket pack = new DatagramPacket(ary, 128);

    // read//from  w w  w.ja  v a 2 s. co 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();
    // write
    sock = new DatagramSocket();
    pack.setAddress(InetAddress.getByName(args[1]));
    pack.setData(args[2].getBytes());
    pack.setPort(1111);
    sock.send(pack);
    sock.close();

}

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From source file:Main.java

public static void main(String args[]) throws IOException {
    DatagramSocket socket = new DatagramSocket(DAYTIME_PORT);
    while (true) {
        byte buffer[] = new byte[256];
        DatagramPacket packet = new DatagramPacket(buffer, buffer.length);
        socket.receive(packet);/*ww w.  j  a  v a2s  .c o m*/
        String date = new Date().toString();
        buffer = date.getBytes();
        // Get response address/port for client from packet
        InetAddress address = packet.getAddress();
        int port = packet.getPort();
        packet = new DatagramPacket(buffer, buffer.length, address, port);
        socket.send(packet);
    }
}

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