Network programming TCP (five) __ programming

Supplemental: Network programming TCP (II)

Package com;
Import java.io.IOException;
Import Java.io.InputStream;
Import Java.io.OutputStream;
Import java.net.InetAddress;
Import Java.net.ServerSocket;



Import Java.net.Socket;

Import java.net.UnknownHostException;

Import Org.junit.Test;
		public class TESTTCP1 {//client @Test the public void client () {Socket socket=null;
		OutputStream Os=null;
			try {socket = new socket (Inetaddress.getbyname ("127.0.0.1"), 9000);
			OS = Socket.getoutputstream ();
			Os.write ("I am customer number 1th, please take care". GetBytes ());//outward output data} catch (Unknownhostexception e) {//TODO auto-generated catch block
		E.printstacktrace ();
		catch (IOException e) {//TODO auto-generated catch block E.printstacktrace ();
				}finally{if (os!=null) {try {os.close ();
				catch (IOException e) {//TODO auto-generated catch block E.printstacktrace ();
				} if (Socket!=null) {try {socket.close (); catch (IOException e) {//TODO auto-generated catch block E.printstackTrace ();
		}}//service-side @Test public void server () {ServerSocket server=null;
		Socket Socket=null;
		InputStream Is=null;
			try {server=new ServerSocket (9000);
			Socket=server.accept ()//accept get the Client socket object Is=socket.getinputstream ();//write data to the program byte[] B=new byte[20];
			int Len;
				while ((Len=is.read (b))!=-1) {string Str=new string (B,0,len);
			System.out.println (str);
		} System.out.println ("Lad: Received from" +socket.getlocaladdress ());
		catch (IOException e) {//TODO auto-generated catch block E.printstacktrace ();
				} finally{if (is!=null) {try {is.close ();
				catch (IOException e) {//TODO auto-generated catch block E.printstacktrace ();
				} if (Socket!=null) {try {socket.close ();
				catch (IOException e) {//TODO auto-generated catch block E.printstacktrace ();
				} if (Server!=null) {try {server.close (); catch (IOException e) {//TODO auto-generated catch BLock E.printstacktrace ();
 }
			}
		}
	}
}

The
example is only sent by the client, and the server receives it. The following example is server and client interaction. There are questions and answers.

Package com;
Import java.io.IOException;
Import Java.io.InputStream;
Import Java.io.OutputStream;
Import java.net.InetAddress;
Import Java.net.ServerSocket;



Import Java.net.Socket;

Import java.net.UnknownHostException;


Import Org.junit.Test; /** * Case: The client sends a message to the server, and the server prints the information. Send "received message" to client * @author Administrator */public class TESTTCP2 {//client @Test public void client () {Socket soc
		Ket=null;
		OutputStream Os=null;
		InputStream Is=null;
			try {socket = new socket (Inetaddress.getbyname ("127.0.0.1"), 9000);
			OS = Socket.getoutputstream (); Os.write ("Wo shi Kehu 2". GetBytes ())//outward output data for the server to read Socket.shutdownoutput (),//display notification, service end "sent out."
			", Is=socket.getinputstream ();
			Byte[] B=new byte[50];
			int Len;
				while ((Len=is.read (b))!=-1) {string Str=new string (B,0,len);
			System.out.println (str);
		The catch (Unknownhostexception e) {//TODO auto-generated catch block E.printstacktrace (); catch (IOException e) {//TODO Auto-geNerated Catch block E.printstacktrace ();
				}finally{if (is!=null) {try {is.close ();
				catch (IOException e) {//TODO auto-generated catch block E.printstacktrace ();
				} if (Os!=null) {try {os.close ();
				catch (IOException e) {//TODO auto-generated catch block E.printstacktrace ();
				} if (Socket!=null) {try {socket.close ();
				catch (IOException e) {//TODO auto-generated catch block E.printstacktrace ();
		}}//service-side @Test public void server () {ServerSocket server=null;
		Socket Socket=null;
		InputStream Is=null;
		OutputStream Os=null;
			try {server=new ServerSocket (9000); Socket=server.accept ()//accept get the Client socket Object Is=socket.getinputstream ()//Get the client socket data to the program to write data byte[b=new
			BYTE[20];
			int Len;
				while ((Len=is.read (b))!=-1) {string Str=new string (B,0,len);
			System.out.println ("Fuwqi: Received:" +socket.getlocaladdress () +str); //Then the server said that II also give you feedback os=socket.getoutputstream ();
			
		Os.write ("Shou Dao ni de xinxile, Yihouhuihaohao guanzhao ni de". getBytes ());
		catch (IOException e) {//TODO auto-generated catch block E.printstacktrace ();
				} finally{if (os!=null) {try {os.close ();
				catch (IOException e) {//TODO auto-generated catch block E.printstacktrace ();
				} if (Is!=null) {try {is.close ();
				catch (IOException e) {//TODO auto-generated catch block E.printstacktrace ();
				} if (Socket!=null) {try {socket.close ();
				catch (IOException e) {//TODO auto-generated catch block E.printstacktrace ();
				} if (Server!=null) {try {server.close ();
				catch (IOException e) {//TODO auto-generated catch block E.printstacktrace ();
 }
			}
		}
	}
}