socketclient.java

介绍有关java的资料 课件 相当一本书籍 里面都是很基础的知识

/**
 * Title:        Java网络编程演示
 * Description:  Java网络编程演示，用于北京师范大学计算机系Java课程教学示范。
 * Copyright:    Copyright (c) 2001
 * Company:      北京师范大学计算机系
 * @author 孙一林
 * @version 1.0
 */
	import java.net.*;
	import java.io.*;
	public class SocketClient {
		static public void main(String argv[]) {
			int Port = 8080;
			String host = "";
			Socket s;
			DataInputStream input;
			String inmsg = "";
			String[] outmsg = { "LOGON Request",
								"Server connection established.",
								"Sending meaningful Data...",
								"EXIT"};
			if( argv.length >= 1 )
				Port = Integer.parseInt(argv[0]);
			if( argv.length >= 2 )
				host = argv[1];
			System.out.println( "Connecting to "+host+" on port "+ Port );
			try {
				s = new Socket( host, Port);
				BufferedInputStream bufIn;
				bufIn = new BufferedInputStream( s.getInputStream() );
				input = new DataInputStream( bufIn );
				PrintStream printOut = new PrintStream(s.getOutputStream());
				for( int i = 0; i < outmsg.length; i++ ) {
					System.out.println( " [Client] " + outmsg[i] );
					printOut.println(outmsg[i]);
					inmsg = input.readLine();
					System.out.println( "  [Server] " + inmsg );
					try {
						Thread.sleep(5000);
					}
					catch(InterruptedException e) { }
				}
				s.close();
				System.out.println( "Socket closed, Session ended." );
			}
			catch (IOException e) {
				e.printStackTrace();
				System.err.println(e.getMessage());
			}
		}
	}