Java based socket for simple chat room instance _java

This article describes the Java based on the socket implementation of simple chat room method. Share to everyone for your reference. The implementation methods are as follows:

Chatroomdemo.java

Package Com.socket.demo; 
Import java.io.IOException; 
Import Java.net.DatagramSocket; 
public class Chatroomdemo { 
  /** 
   * @param args 
   * @throws ioexception 
  /public static void main ( String[] args) throws IOException { 
    System.out.println ("----Enter chat room----"); 
    Datagramsocket send = new Datagramsocket (); 
    Datagramsocket rece = new Datagramsocket (10001); 
    New Thread (new Senddemo (send)). Start ()//starts sending the thread 
    new thread (new Receivedemo (Rece)). Start ()//start receive thread 
}

Senddemo.java

Package Com.socket.demo; 
Import Java.io.BufferedReader; 
Import Java.io.InputStreamReader; 
Import Java.net.DatagramPacket; 
Import Java.net.DatagramSocket; 
Import java.net.InetAddress; 
  public class Senddemo implements Runnable {private Datagramsocket ds; 
  There are parameter constructors public Senddemo (Datagramsocket ds) {this.ds = ds; 
          @Override public void Run () {try {BufferedReader bufr = new BufferedReader ( 
      system.in)); 
      String line = null; 
        while (line = Bufr.readline ())!= null) {byte[] buf = Line.getbytes (); 
        * *//192.168.1.255 is the IP segment broadcast address, send this IP information, * in 192.168.1.1-192.168.1.255 IP segment of all IP address can receive message * *
        Datagrampacket DP = new Datagrampacket (buf, Buf.length,inetaddress.getbyname ("192.168.1.255"), 10001); 
        Ds.send (DP); 
      if ("886". equals) break; 
    } ds.close ();

 The catch (Exception e) {}}}

Receivedemo.java

 package Com.socket.demo; 
Import Java.net.DatagramPacket; 
Import Java.net.DatagramSocket; 
  public class Receivedemo implements Runnable {private Datagramsocket ds; 
  Public Receivedemo (Datagramsocket ds) {this.ds = ds; 
        Create a packet @Override public void run () {try {(true) {//2). 
        byte[] buf = new byte[1024];
        Datagrampacket DP = new Datagrampacket (buf, buf.length); 
        3, use the Receive method to store the data in the packet. 
        Ds.receive (DP);//blocking type. 
        4, through the method of the packet object, parse the data, such as address, port, data content. 
        String IP = dp.getaddress (). gethostaddress (); 
        int port = Dp.getport (); 
        SYSTEM.OUT.PRINTLN ("----Port-----" + port); 
        String text = new String (Dp.getdata (), 0, Dp.getlength ()); 
        SYSTEM.OUT.PRINTLN (IP + "::" + text); if (Text.equals ("886")) {System.out.println (IP +) .... 
        Exit chat room "); 

for catch (Exception e) {}}}

The Operation effect chart is as follows:

I hope this article will help you with your Java programming.