JAVA TCP Socket

Server-side

 Packagecom. Pong.tcpip;ImportJava.io.BufferedReader;Importjava.io.IOException;ImportJava.io.InputStream;ImportJava.io.InputStreamReader;ImportJava.io.OutputStream;ImportJava.net.ServerSocket;ImportJava.net.Socket; Public classTCPServer {//start the server-side program first     Public Static voidMain (string[] args)throwsIOException {serversocket serversocket=NewServerSocket (8080); Socket Socket=serversocket.accept ();//Blocking Wait MessagesInputStream inputstream=Socket.getinputstream (); OutputStream OutputStream=Socket.getoutputstream ();//outputstream.write ("Welcome!" ". GetBytes (), 0," Welcome! ". GetBytes (). length);Outputstream.write ("welcome!". GetBytes ()); /*byte[] Buf=new byte[1024];        int Len=inputstream.read (BUF);//System.out.println (New String (buf, 0, Len)); Inputstream.close ();*/BufferedReader BufferedReader=NewBufferedReader (NewInputStreamReader (InputStream));        System.out.println (Bufferedreader.readline ());        Bufferedreader.close ();        Outputstream.close ();        Socket.close ();    Serversocket.close (); }}

 Packagecom. Pong.tcpip;ImportJava.io.BufferedReader;ImportJava.io.DataOutputStream;Importjava.io.IOException;ImportJava.io.InputStream;ImportJava.io.InputStreamReader;ImportJava.io.OutputStream;ImportJava.net.ServerSocket;ImportJava.net.Socket; Public classServicerImplementsRunnable {socket socket;  PublicServicer (socket socket) {Super();  This. Socket =socket; } @Override Public voidrun () {Try{InputStream InputStream=Socket.getinputstream (); OutputStream OutputStream=Socket.getoutputstream (); BufferedReader BufferedReader=NewBufferedReader (NewInputStreamReader (InputStream)); DataOutputStream DataOutputStream=NewDataOutputStream (OutputStream);  while(true) {String Strword=bufferedreader.readline ();//System.out.println (strword+ ":" +strword.length ());            if("Quit". Equalsignorecase (Strword)) {                 Break; } String Strecho=(NewStringBuilder (Strword). reverse ()). ToString (); //dataoutputstream.writebytes (strword+ "---->" +strecho+ "\ r \ n"); //system.getproperty ("Line.separator") is a cross-platform line break. window is \r\n,unix \ nDataoutputstream.writebytes (strword+ "---->" +strecho+system.getproperty ("Line.separator"));        } bufferedreader.close ();        Bufferedreader.close ();    Socket.close (); } Catch(IOException e) {//TODO auto-generated Catch blockE.printstacktrace (); }        }         Public Static voidmain (String [] args) {Try{ServerSocket ss=NewServerSocket (8080);  while(true) {Socket s=ss.accept (); NewThread (NewServicer (s)). Start (); }            //ss.close ();}Catch(Exception e) {e.printstacktrace ();} }}

Client

 Packagecom. Pong.tcpip;ImportJava.io.BufferedReader;ImportJava.io.DataOutputStream;ImportJava.io.InputStream;ImportJava.io.InputStreamReader;ImportJava.io.OutputStream;Importjava.net.InetAddress;ImportJava.net.Socket;//After you start the client program Public classTcpClient {//start main simultaneous come in two parameters: IP and port number     Public Static voidmain (String [] args) {Try    {        //Socket s=new Socket (inetaddress.getbyname ("192.168.0.213"), 8001);        if(Args.length < 2) {System.out.println ("Usage:java TcpClient ServerIP ServerPort"); return; }        //Creating SocketsSocket s=NewSocket (Inetaddress.getbyname (Args[0]), Integer.parseint (args[1])); InputStream IPs=S.getinputstream (); OutputStream Ops=S.getoutputstream (); BufferedReader Brkey=NewBufferedReader (NewInputStreamReader (system.in));//Keyboard InputDataOutputStream dos =NewDataOutputStream (OPS); BufferedReader brnet=NewBufferedReader (NewInputStreamReader (IPs));  while(true) {String Strword=Brkey.readline (); Dos.writebytes (Strword+ System.getproperty ("Line.separator")); if(Strword.equalsignorecase ("Quit"))                 Break; ElseSystem.out.println (Brnet.readline ());        } dos.close ();        Brnet.close ();        Brkey.close ();    S.close (); }Catch(Exception e) {e.printstacktrace ();} }}/*send and receive are all based on sockets as information carriers*/

JAVA TCP Socket