尚学堂科技_马士兵_在线聊天系统雏形视频教程

//0.1


ChatClient.java

import java.awt.*;

public class ChatClient extends Frame {

	public static void main(String[] args) {
		new ChatClient().launchFrame();
	}
	
	public void launchFrame() {
		setLocation(400, 300);
		this.setSize(300, 300);
		setVisible(true);
	}

}

//0.2
ChatClient.java

import java.awt.*;

public class ChatClient extends Frame {

	TextField tfTxt = new TextField();

	TextArea taContent = new TextArea();

	public static void main(String[] args) {
		new ChatClient().launchFrame(); 
	}

	public void launchFrame() {
		setLocation(400, 300);
		this.setSize(300, 300);
		add(tfTxt, BorderLayout.SOUTH);
		add(taContent, BorderLayout.NORTH);
		pack();
		setVisible(true);
	}

}

ChatClient.java

import java.awt.*;
import java.awt.event.*;

public class ChatClient extends Frame {

	TextField tfTxt = new TextField();

	TextArea taContent = new TextArea();

	public static void main(String[] args) {
		new ChatClient().launchFrame(); 
	}

	public void launchFrame() {
		setLocation(400, 300);
		this.setSize(300, 300);
		add(tfTxt, BorderLayout.SOUTH);
		add(taContent, BorderLayout.NORTH);
		pack();
		this.addWindowListener(new WindowAdapter() {

			@Override
			public void windowClosing(WindowEvent arg0) {
				System.exit(0);
			}
			
		});
		setVisible(true);
	}

}

//0.4
ChatClient.java

import java.awt.*;
import java.awt.event.*;

public class ChatClient extends Frame {

	TextField tfTxt = new TextField();

	TextArea taContent = new TextArea();

	public static void main(String[] args) {
		new ChatClient().launchFrame(); 
	}

	public void launchFrame() {
		setLocation(400, 300);
		this.setSize(300, 300);
		add(tfTxt, BorderLayout.SOUTH);
		add(taContent, BorderLayout.NORTH);
		pack();
		this.addWindowListener(new WindowAdapter() {

			@Override
			public void windowClosing(WindowEvent arg0) {
				System.exit(0);
			}
			
		});
		tfTxt.addActionListener(new TFListener());
		setVisible(true);
	}
	
	private class TFListener implements ActionListener {

		public void actionPerformed(ActionEvent e) {
			String s = tfTxt.getText().trim();
			taContent.setText(s);
			tfTxt.setText("");
		}
		
	}

}

//0.5
ChatClient.java

public class ChatClient extends Frame {

	TextField tfTxt = new TextField();

	TextArea taContent = new TextArea();

	public static void main(String[] args) {
		new ChatClient().launchFrame(); 
	}

	public void launchFrame() {
		setLocation(400, 300);
		this.setSize(300, 300);
		add(tfTxt, BorderLayout.SOUTH);
		add(taContent, BorderLayout.NORTH);
		pack();
		this.addWindowListener(new WindowAdapter() {

			@Override
			public void windowClosing(WindowEvent arg0) {
				System.exit(0);
			}
			
		});
		tfTxt.addActionListener(new TFListener());
		setVisible(true);
	}
	
	private class TFListener implements ActionListener {

		public void actionPerformed(ActionEvent e) {
			String s = tfTxt.getText().trim();
			taContent.setText(s);
			tfTxt.setText("");
		}
		
	}

}

ChatServer.java

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

public class ChatServer {

	public static void main(String[] args) {
		try {
			ServerSocket ss = new ServerSocket(8888);
			while(true) {
				Socket s = ss.accept();
System.out.println("a client connected!");
			}
		} catch (IOException e) {
			e.printStackTrace();
		}
	}

}

//0.6------------------------------------------------

ChatClient

import java.awt.*;
import java.awt.event.*;
import java.io.*;
import java.net.*;

public class ChatClient extends Frame {
	Socket s = null;

	TextField tfTxt = new TextField();

	TextArea taContent = new TextArea();

	public static void main(String[] args) {
		new ChatClient().launchFrame(); 
	}

	public void launchFrame() {
		setLocation(400, 300);
		this.setSize(300, 300);
		add(tfTxt, BorderLayout.SOUTH);
		add(taContent, BorderLayout.NORTH);
		pack();
		this.addWindowListener(new WindowAdapter() {

			@Override
			public void windowClosing(WindowEvent arg0) {
				System.exit(0);
			}
			
		});
		tfTxt.addActionListener(new TFListener());
		setVisible(true);
		connect();
	}
	
	public void connect() {
		try {
			s = new Socket("127.0.0.1", 8888);
System.out.println("connected!");
		} catch (UnknownHostException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}
		
	}
	
	private class TFListener implements ActionListener {

		public void actionPerformed(ActionEvent e) {
			String str = tfTxt.getText().trim();
			taContent.setText(str);
			tfTxt.setText("");
			
			try {
				DataOutputStream dos = new DataOutputStream(s.getOutputStream());
				dos.writeUTF(str);
				dos.flush();
				dos.close();
			} catch (IOException e1) {
				e1.printStackTrace();
			}
			
		}
		
	}

}

ChatServer.java

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

public class ChatServer {

	public static void main(String[] args) {
		try {
			ServerSocket ss = new ServerSocket(8888);
			while(true) {
				Socket s = ss.accept();
System.out.println("a client connected!");
				DataInputStream dis = new DataInputStream(s.getInputStream());
				String str = dis.readUTF();
				System.out.println(str);
				dis.close();
			}
		} catch (IOException e) {
			e.printStackTrace();
		}
	}

}