java简单的TCP服务程序

tcp服务器代码如下：

import java.net.*;

public class ReserveServer {
	public static void main(String[] args) { // 用户可自行指定端口号
		try {
			ServerSocket ss;
			
			if (args.length < 1) {
				ss = new ServerSocket(8888);
			} else {
				ss = new ServerSocket(Integer.parseInt(args[0]));
			}
			
			while (true) {
				Socket s = ss.accept();
				
				new Thread(new Servicer(s)).start();
			}
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
}

Servicer类如下：

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

public class Servicer implements Runnable {
	private Socket s;
	
	public Servicer(Socket s) {
		this.s = s;
	}
	
	public void run() {
		try {
			InputStream is = s.getInputStream();
			OutputStream os = s.getOutputStream();
			BufferedReader bufReader = new BufferedReader(new InputStreamReader(is));
			PrintWriter printWriter = new PrintWriter(os, true);
			
			while (true) {
				String info = bufReader.readLine();
				
				if (info.equalsIgnoreCase("quit")) {
					break;
				}
				
				String result = new StringBuffer(info).reverse().toString();
				
				printWriter.println(info + " --> " + result);
			}
			
			bufReader.close();
			printWriter.close();
			s.close();
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
}

客户端代码如下：

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

public class TcpClient {

	public static void main(String[] args) {
		if (args.length < 2) {
			printUsage();
		}
		try {
			Socket s = new Socket(args[0], Integer.parseInt(args[1]));
			InputStream is = s.getInputStream();
			OutputStream os = s.getOutputStream();
			BufferedReader bufNet = new BufferedReader(new InputStreamReader(is));
			PrintWriter prtWriter = new PrintWriter(os, true);
			BufferedReader bufKeyBoard = new BufferedReader(new InputStreamReader(System.in));
			
			while (true) {
				String input = bufKeyBoard.readLine();
				prtWriter.println(input);
				
				if (input.equalsIgnoreCase("quit")) {
					break;
				}
				
				System.out.println(bufNet.readLine());
			}
			
			prtWriter.close();
			bufNet.close();
			bufKeyBoard.close();
			s.close();
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
	
	private static void printUsage() {
		System.out.println("Usage : java TcpClient ServerIP ServerPort");
	}

}