UDP Instant Small communication

Package 12th, import java.io.ioexception;import java.net.*;p ublic class Udpserver {/*** * * @param args * @throws ioexcept Ion */public static void Main (string[] args) throws IOException {//TODO auto-generated method stubSystem.out.println ("service ");D atagramsocket socket=new datagramsocket (55555), while (true) {byte[]b=new byte[1024];// UDP sends Datagrampacket packet=new datagrampacket (b,b.length) in the form of packets; socket.receive (packet); String S=new string (Packet.getdata (), 0,packet.getlength ()),//Gets the ipstring ip=packet.getaddress () to the sending end. ToString (); System.out.println (ip+ ":" +s);}}} Client Ackage the 12th chapter; Import Java.io.ioexception;import Java.net.datagrampacket;import Java.net.datagramsocket;import Java.net.inetaddress;import Java.net.socket;import Java.net.socketexception;import java.net.UnknownHostException; Import Java.util.scanner;public class UdpClient {public static void main (string[] args) throws IOException {//TODO auto-g Enerated method Stubwhile (True) {Scanner scan=new Scanner (system.in); System.out.println ("Please enter the data to be sent"); String str =new string (); Str=scan.nextline (); byte[]b=str.getbytes ();//server-side IP address inetaddress serveraddress= Inetaddress.getbyname ("192.168.1.179");//Parameter list: Byte array, length of array, IP address of server, port number of server Datagrampacket packet=new Datagrampacket (b,b.length,serveraddress,55555);//datagramsocket can send this packet to the server Datagramsocket socket=new Datagramsocket (); socket.send (packet);}}

UDP Instant Small communication