tcpserver.java

SSD8练习3 自己做的 拿出来交流交流

/**
 * This class models a server using TCP to serve the client.
 * 
 * @author tyrant
 * @version 1.0.0
 */

import java.net.*;
import java.io.*;

public class TCPServer {

	/* server socket to serve the request from the client. */
	private ServerSocket serverSocket;
	
	/**
	 * constructor to create the socket.
	 * @throws IOException
	 */
	public TCPServer() throws IOException {
		
		serverSocket = new ServerSocket(6000);
		System.out.println("Server starts...");
	}
	
	/**
	 * method to exchange one byte with the server for 1000 times.
	 */
	public void run() {
		
		// byte arrays to store the bytes to receive or to send
		byte[] receiveByte = new byte[1];
		byte[] sendByte = new byte[1];
	
		try {
			/*
			 * solve the request from the client all the time.
			 */
			while (true) {
				// a socket to connect the client.
				Socket connectSocket = serverSocket.accept();

				// iostreams to communicate with the client.
				DataOutputStream outToClient = new DataOutputStream(connectSocket
						.getOutputStream());
				DataInputStream inFromClient = new DataInputStream(connectSocket
						.getInputStream());

				// exchange one byte with the client.
				inFromClient.read(receiveByte, 0, receiveByte.length);
				outToClient.write(sendByte, 0, sendByte.length);
				
				connectSocket.close();
			}
		} catch (IOException ioe) {
			ioe.printStackTrace();
		}
	}
	/**
	 * @param args
	 */
	public static void main(String[] args) throws Exception {
		// TODO Auto-generated method stub
		TCPServer server = new TCPServer();
		server.run();
	}
}