java绘制C/S架构的网络绘图版

java绘制C/S架构的网络绘图版

1. 服务端程序

• Server.java

import java.net.ServerSocket;
import java.net.Socket;
public class Server extends Thread {

	public void run(){
		
		createServer();
		
	}
	public void createServer(){
		try {
			ServerSocket serverSocket = new ServerSocket(7070);
			System.out.println("Server created successfully！");
			while (true) {
				Socket socket = serverSocket.accept();
				System.out.println("client connection ！");
				IoThread ioThread = new IoThread(socket);
				SeverThreadList.SeverList.add(ioThread);
				ioThread.start();
			}
		} catch (Exception e) {
			e.printStackTrace();
			System.out.println("Server creation failed！");
		}
	}
	public static void main(String [] args){
		Server server = new Server();
		server.run();
	}
}

• IoThread.java

import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.Socket;
public class IoThread extends Thread{
	private Socket socket ;
	private InputStream ins;
	public OutputStream out;
	private DataInputStream dins;
	public  DataOutputStream dout;
	
	public IoThread(Socket socket) {
		this.socket =socket;
	}

	public void run(){
		
		process();
		
	}
	
	public void process(){
		
		try {
			ins = this.socket.getInputStream();
			out = this.socket.getOutputStream();
			dins =  new DataInputStream(ins);
			dout = new DataOutputStream(out);
			while (true) {
					int x1 = dins.readInt();
					int y1 = dins.readInt();
					int x2= dins.readInt();
					int y2 = dins.readInt();
					int color = dins.readInt();
					transDate(x1, y1, x2, y2,color);
				}
			}catch (IOException e) {
			System.out.println("Client connect failed！");
		}
	}
	
	public void transDate(int x1,int y1,int x2,int y2, int color){
		
		int t = SeverThreadList.SeverList.size();
		for(int i=0;i<t;i++){
			try {
				SeverThreadList.SeverList.get(i).dout.writeInt(x1);
				SeverThreadList.SeverList.get(i).dout.writeInt(y1);
				SeverThreadList.SeverList.get(i).dout.writeInt(x2);
				SeverThreadList.SeverList.get(i).dout.writeInt(y2);
				SeverThreadList.SeverList.get(i).dout.writeInt(color);
			} catch (IOException e) {
				//e.printStackTrace();
				System.out.println("Client connect failed！");
			}
		}
	}	
}

• SeverThreadList.java

import java.util.ArrayList;
public class SeverThreadList {
	public static ArrayList<IoThread> SeverList = new ArrayList<IoThread>();
}

客户端程序

• Client.java

import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.Graphics;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;

public class Client extends JFrame{
	private Graphics g;
	
	public void DrawingBoard(){
		this.setTitle("Client interface");
		this.setSize(700,600);
		this.setDefaultCloseOperation(3);
		this.setLocationRelativeTo(null);
		JPanel centralPanel = new JPanel();
		centralPanel.setPreferredSize(new Dimension(500,0));
		this.add(centralPanel,BorderLayout.CENTER);
		this.setVisible(true);
		g = centralPanel.getGraphics();
		ClientSocket clientSocket = new ClientSocket(g);
		clientSocket.start();
		ClientMouseListener clientMouseListener = new ClientMouseListener(g,clientSocket);
		centralPanel.addMouseListener(clientMouseListener);
		centralPanel.addMouseMotionListener(clientMouseListener);
	}
	public static void main(String [] args){
		Client client = new Client();
		client.DrawingBoard();
	}
}

• ClientMouseListener.java

import java.awt.Graphics;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.io.IOException;
import java.awt.event.MouseAdapter;

public class ClientMouseListener extends MouseAdapter {
	
	private int x1;
	private int y1;
	private int x2;
	private int y2;
	private int color=0;
	private Graphics  g;
	private ClientSocket clientSocket;
	public ClientMouseListener(Graphics g, ClientSocket clientSocket) {
		this.g = g;
		this.clientSocket = clientSocket;
	}

	@Override
	public void mouseClicked(MouseEvent e) {
	}

	@Override
	public void mouseEntered(MouseEvent e) {
	}

	@Override
	public void mouseExited(MouseEvent e) {
	}

	@Override
	public void mousePressed(MouseEvent e) {
		x1 = e.getX();
		y1 = e.getY();
		color+=1;
	}
	@Override
	public void mouseReleased(MouseEvent e) {
			
	}
	@Override
	public void mouseDragged(MouseEvent e) {
		int x2=e.getX();
		int y2=e.getY();
			
		try {
			this.clientSocket.dout.writeInt(x1);
			this.clientSocket.dout.writeInt(y1);
			this.clientSocket.dout.writeInt(x2);
			this.clientSocket.dout.writeInt(y2);
			this.clientSocket.dout.writeInt(color);
			
			} catch (IOException e1) {
					e1.printStackTrace();
		}
		g.drawLine(x1, y1, x2, y2);
		x1=x2;
		y1=y2;
	}
}

• ClientSocket.java

import java.awt.Graphics;
import java.awt.Color;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.Socket;

public class ClientSocket extends Thread{
	
	private Socket socket;
	private InputStream ins;
	public OutputStream out;
	private DataInputStream dins;
	public DataOutputStream dout;
	private Graphics g;
	public ClientSocket(Graphics g) {
		this.g = g;	
	}

	public void run(){
		
		process();	
	}
	
	public void process(){
		try {
			socket = new Socket("127.0.0.1",7070);
			ins = socket.getInputStream();
			out = socket.getOutputStream();
			dins = new DataInputStream(ins);
			dout = new DataOutputStream(out);
			while (true) {
				readDate();
			}
			
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
	
	public void readDate(){
		
		try {
			int x1 = dins.readInt();
			int y1 = dins.readInt();
			int x2 = dins.readInt();
			int y2 = dins.readInt();
			int color=dins.readInt();
			if(color>6) color%=6;
			if(color==1) g.setColor(Color.BLUE);
			else if(color==2) g.setColor(Color.CYAN);
			else if(color==3) g.setColor(Color.GREEN);
			else if(color==4) g.setColor(Color.PINK);
			else if(color==5) g.setColor(Color.MAGENTA);
			else if(color==6) g.setColor(Color.RED);
			g.drawLine(x1, y1, x2, y2);
			
		} catch (IOException e) {
			e.printStackTrace();
		}
	}
}

运行结果