JAVA之TCP网络程序

单方向的TCP通信

server端

import java.awt.Container;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.InetAddress;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.Calendar;
import java.util.Date;
import java.text.SimpleDateFormat;

import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.JTextField;
import javax.swing.WindowConstants;
import javax.xml.crypto.Data;

public class sSocket {
	private ServerSocket server;
	private Socket socket;
	private BufferedReader reader;
	private JTextArea jt = new JTextArea(15,20);
	private JTextField jf = new JTextField();
	
	public sSocket(){
		JFrame frame = new JFrame();
		JScrollPane js = new JScrollPane(jt);
		Container con = frame.getContentPane();
		frame.setLocationRelativeTo(null);
		con.add(js,"North");
		con.add(jf,"South");
		
		frame.setSize(200,400);
		frame.setVisible(true);
		frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
		
		getSever();
	}

	public void getSever(){
		try {
			server = new ServerSocket(8848);
			jt.append("服务器套接字创建成功...\n");
			while(true){
				jt.append("wait for client connect...\n");
				socket = server.accept();
				reader = new BufferedReader(new InputStreamReader(socket.getInputStream()));
				jt.append("connect client success...\n");
				getClientMsg();
			}
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}
	
	public void getClientMsg(){
		SimpleDateFormat df = new SimpleDateFormat("HH:mm:ss");
		try {
			while(true){
				String ss = reader.readLine();
				if(!ss.equals("")){
					Calendar c = Calendar.getInstance();
					jt.append("client " + df.format(c.getTime()) + "\n");
					jt.append(ss + "\n");
					jt.setCaretPosition(jt.getText().length());
				}
			}
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		
		try {
			if(reader != null)
				reader.close();
			if(socket != null)
				socket.close();
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
	}
	
	public static void main(String[] args){
		new sSocket();
	}
}

客户端

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Container;
import java.awt.FlowLayout;
import java.awt.Graphics;
import java.awt.Point;
import java.awt.Window;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowEvent;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.io.Writer;
import java.net.InetAddress;
import java.net.MalformedURLException;
import java.net.ServerSocket;
import java.net.Socket;
import java.net.URL;
import java.net.URLConnection;
import java.net.UnknownHostException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Collection;
import java.util.Iterator;
import java.util.Random;

import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JProgressBar;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JTextArea;
import javax.swing.JTextField;
import javax.swing.SwingConstants;
import javax.swing.WindowConstants;
import javax.swing.table.DefaultTableModel;

public class test extends JFrame{
	private JTextArea jt = new JTextArea(15,20);
	private JTextField jf = new JTextField();
	private PrintWriter writer;
	private ServerSocket server;
	private Socket socket;
	
	public test(){
		init();
		connect();
		
		jf.addActionListener(new ActionListener() {
			SimpleDateFormat df = new SimpleDateFormat("HH:mm:ss");
			@Override
			public void actionPerformed(ActionEvent arg0) {
				// TODO Auto-generated method stub
				String s = jf.getText();
				writer.println(s + "\n");
				Calendar c = Calendar.getInstance();
				jt.append("Me " + df.format(c.getTime()) + "\n");
				jt.append(s + "\n");
				jt.setCaretPosition(jt.getText().length());
				jf.setText("");
			}
		});
	}
	
	public void connect(){
		jt.append("try to connect...\n");
		try {
			socket = new Socket(InetAddress.getLocalHost(), 8848);
			writer = new PrintWriter(socket.getOutputStream(),true);
			jt.append("connet success...\n");
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}
	
	
	public void init(){
		setLocationRelativeTo(null);
		Container con = getContentPane();
		JScrollPane js = new JScrollPane(jt);
		
		con.add(js,"North");
		con.add(jf,"South");
		setVisible(true);
		setSize(200,400);
		setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);

	}
	
	public static void main(String[] agrs){
		new test();
	}
}