tcpserver.java

java写的一个Tcp socket 一个client和server

package com.demo.struts.else_test;

//服务器端源程序
import java.io.*;
import java.net.*;

public class TcpServer
{
	@SuppressWarnings("deprecation")
	public static void main(String args[]) throws IOException{
		ServerSocket svrsoc = null;
		Socket soc = null;
		InputStream is = null;
		OutputStream os = null;
		//DataInputStream 为InputStream的子类
		DataInputStream in = null;
		//PrintStream为OutputStream的子类
		PrintStream out = null;
		try{
			svrsoc = new ServerSocket(8000);

			soc = svrsoc.accept();

			is = soc.getInputStream();

			in = new DataInputStream(is);

			os = soc.getOutputStream();

			out = new PrintStream(os);

			InetAddress clientIP = soc.getInetAddress();

			System.out.println("Client`s IP address:" + clientIP);

			int port ;

			port = soc.getPort();

			System.out.println("Client`s port :" + port);

			out.println("Welcome! Happy newyear!");

			String str = in.readLine();

			while(! str.equals("quit")){
				System.out.println("Client said:" + str);
				str = in.readLine();
			}
			System.out.println("Client want to leave.");
		}catch(Exception e){
			System.out.println("Error:" + e);
		}
		finally{
			is.close();
			os.close();
			soc.close();
			System.exit(0);
  	    	}
	}
}