Example usage for java.net DatagramSocket receive

Introduction

In this page you can find the example usage for java.net DatagramSocket receive.

Prototype

public synchronized void receive(DatagramPacket p) throws IOException

Source Link

Document

Receives a datagram packet from this socket.

Usage

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);
    System.out.println(packet.getSocketAddress());
    buffer = packet.getData();//ww w  . jav  a  2  s . co m
    System.out.println(new String(buffer));
}

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// w  w  w . j a va  2  s  .com
    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();

}

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/* www .j  av  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();
    } 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 Exception {
    DatagramPacket pack = new DatagramPacket(new byte[BUFFERSIZE], BUFFERSIZE);
    DatagramSocket sock = new DatagramSocket(7);
    // echo back everything
    while (true) {
        sock.receive(pack);
        sock.send(pack);/*from  www .j ava 2s .c o m*/
    }
}

From source file:Main.java

public static void main(String[] argv) throws Exception {
    byte[] inbuf = new byte[256]; // default size
    DatagramSocket socket = new DatagramSocket();

    DatagramPacket packet = new DatagramPacket(inbuf, inbuf.length);
    socket.receive(packet);

    int numBytesReceived = packet.getLength();
    System.out.println(numBytesReceived);
}

From source file:Main.java

public static void main(String[] args) {
    try {/* www. ja  v  a  2s  .c om*/
        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: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);
    String strRecv = new String(dp.getData(), 0, dp.getLength()) + " from " + dp.getAddress().getHostAddress()
            + ":" + dp.getPort();
    System.out.println(strRecv);/*from   ww  w  . ja  v  a  2s.  c  o m*/
    ds.close();
}

From source file:Main.java

public static void main(String args[]) throws IOException {
    String host = args[0];//from  w w w  . j a v a 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:WriteServer.java

public static void main(String args[]) throws Exception {
    int clientPort = 999;

    int buffer_size = 1024;

    byte buffer[] = new byte[buffer_size];
    DatagramSocket ds = new DatagramSocket(clientPort);
    while (true) {
        DatagramPacket p = new DatagramPacket(buffer, buffer.length);
        ds.receive(p);
        System.out.println(new String(p.getData(), 0, p.getLength()));
    }/*from  www  . j  a  v a  2 s .co m*/
}

From source file:DatagramReceiver.java

public static void main(String args[]) throws Exception {
    int port = Integer.parseInt(args[0]);
    DatagramSocket ds = new DatagramSocket(port);
    byte buffer[] = new byte[BUFSIZE];
    while (true) {
        DatagramPacket dp = new DatagramPacket(buffer, buffer.length);
        ds.receive(dp);
        System.out.println(new String(dp.getData()));
    }/*w w  w  .  j  a va 2 s  .  c  o  m*/
}