网络编程之tcp

/**
 *TCPServer
 *@author Winty [e-mail]
 *@version 2008-12-15
 */
import java.io.*;
import java.net.*;
class TCPServer{
    public static void main(String[] args)throws IOException{
        ServerSocket listen = new ServerSocket(5050);

        Socket server  = listen.accept();
        InputStream in = server.getInputStream();
        OutputStream out = server.getOutputStream();
        char c = (char)in.read();
        System.out.println("收到:" + c);
        out.write('s');

        out.close();
        in.close();
        server.close();
        listen.close();
    }
}

 

/**
 *TCPClient
 *@author Winty [e-mail]
 *@version 2008-12-15
 */
import java.io.*;
import java.net.*;
class TCPClient{
    public static void main(String[] args)throws IOException{
        Socket client = new Socket("127.0.0.1" , 5050);
        InputStream in = client.getInputStream();
        OutputStream out = client.getOutputStream();

        out.write('c');
        char c = (char)in.read();
        System.out.println("收到:" + c);
        out.close();
        in.close();
        client.close();
    }
}