JTable使用：TableModel和JScrollPane、Vector

JTable:可以理解為表示數據的展現組件

TableModel:用于封裝數據組件

Vector: 隊列

代碼框架

package com.huaxin.server;

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.BindException;
import java.net.ServerSocket;
import java.net.Socket;
import java.net.SocketException;
import java.util.ArrayList;

import javax.swing.JOptionPane;

import com.huaxin.UI.InfoPanel;
import com.huaxin.UI.TablePanel;

public class MyServer {
	
	public static ArrayList<ServerThread> serverList = new ArrayList<ServerThread>();
	public int port;
	public ServerSocket server;
	private TablePanel tablePanel;
	private InfoPanel infoPanel;
	public MyServer(int port, TablePanel tablePanel, InfoPanel infoPanel) {
		this.port=port;
		this.tablePanel=tablePanel;
		this.infoPanel=infoPanel;
	}
	
	//啟動服務器
	public void startServer(){
		try {
			//創建服務器對象
			server = new ServerSocket(port);
			System.out.println("服務器已啟動......");
			
			while(true){
				//服務器連接客戶端,阻塞方法
				Socket socket=server.accept();
				System.out.println("有客戶端連進來了......");
				
				ServerThread st = new ServerThread(socket,tablePanel,infoPanel);
				st.start();
				serverList.add(st);
				
				
			}
		} 
		catch (BindException e) {
			JOptionPane.showMessageDialog(null, "端口號已占用!請重新啟動服務器并輸入新的端口號！");
			System.exit(0);
		}
		catch (SocketException e) {
			JOptionPane.showMessageDialog(null, "服務器已關閉.....");
		}
		catch (Exception e) {
			e.printStackTrace();
		}
	}
	
	public void sendMsgToClient(String s) {

		for (int i = 0; i <serverList.size(); i++) {
			//群發系統消息
			ServerThread st = MyServer.serverList.get(i);
			//獲得每一個客戶真個輸出流
			OutputStream ous;
			try {
				ous = st.socket.getOutputStream();
				st.sendMsg(ous,"The System send a msg :"+s);
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		  } 
		infoPanel.jta.append("System Msg :"+s+"\r\n");
	}
}

package com.huaxin.server;

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.Socket;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Vector;

import com.huaxin.UI.InfoPanel;
import com.huaxin.UI.TablePanel;

import javafx.scene.control.TabPane;

public class ServerThread extends Thread {

	public Socket socket;
	public InputStream ins;
	public OutputStream os;
	public String str;
	public String name;
	public String pwd;
	private TablePanel tablePanel;
	private InfoPanel infoPanel;
	
	public ServerThread(Socket socket, TablePanel tablePanel, InfoPanel infoPanel) {
		this.socket = socket;
		this.tablePanel=tablePanel;
		this.infoPanel=infoPanel;
	}

	public void run() {
		
		Vector<String> vs=null;
		
		try {

			// 獲得輸入輸出流
			ins = socket.getInputStream();
			os = socket.getOutputStream();

			 str = "welcome to zhou's Server";
			// 向客戶端輸出信息
			sendMsg(os, str);
			os.flush();
			
			/************客戶端登錄和驗證****************/
			
			//獲得客戶端輸入的賬戶和密碼
			getMsg();
			//賬號和密碼校驗
			boolean falg =loginCheck();
			//校驗不通過時，循環校驗
			while(!falg){
				str="Fail to connect server......";
				sendMsg(os, str);
				os.flush();
				
				str="please check your name and password and login again.....";
				sendMsg(os, str);
				os.flush();
				getMsg();
				falg =loginCheck();
			}
			
			//校驗成功后：開始聊天
				str="successful connected..... you can chat with your friends now ......";
//				str="yes";
				sendMsg(os, str);
				os.flush();
				//登錄成功后，將用戶名，ip地址和登錄時間加到TabelPanel中的Table中
				//先獲得到TabelPanel中的Table對象，1層1層傳遞過來
				
				String ip =socket.getRemoteSocketAddress().toString();
				Date date = new Date();
				SimpleDateFormat sdf=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
				String currentTime =sdf.format(date);
				
				//封裝用戶名，ip地址和時間
				vs = new Vector<String>();
				vs.add(name);
				vs.add(ip);
				vs.add(currentTime);
				
				//將封裝好的vs加入到tablePanel面板的table中,并刷新面板
				tablePanel.data.add(vs);
				tablePanel.table.updateUI();
				
				// 接受客戶真個信息
				String s = readMsg(ins);
				
				
				while (!s.equals("bye")) {
					
					//在消息框中顯示發送的信息
					infoPanel.jta.append(name+" say:"+s+"\r\n");
					
					for (int i = 0; i < MyServer.serverList.size(); i++) {
						
						//群發消息
						ServerThread st = MyServer.serverList.get(i);
						//不給自己發消息
						if (st == this) continue;
						
						OutputStream ous =st.socket.getOutputStream();
						sendMsg(ous,name+" say:"+s);
						os.flush();
					    } 
					  //循環讀取信息 
					s = readMsg(ins);
				}
			
			// server.close();
		} catch (Exception e) {
//			e.printStackTrace();
			System.out.println("客戶端不正常退出......");
		}

		//關閉客戶端后，將該用戶的記錄從向量隊里中移除，并刷新面板
		if(vs!=null){
			this.tablePanel.data.remove(vs);
			this.tablePanel.table.updateUI();
		}
		// 關閉流、服務器、套接字
		try {
			ins.close();
			os.close();
			socket.close();
			
			MyServer.serverList.remove(this);
		} catch (IOException e) {
//			System.out.println("這個地方有毛病......");
			e.printStackTrace();
		}
	}

	//發送消息的函數
	public void sendMsg(OutputStream os, String s) throws IOException {

		// 向客戶端輸出信息
		//
		byte[] bytes = s.getBytes();
		os.write(bytes);
		os.write(13);
		os.write(10);
		os.flush();

	}

	//讀取客戶端輸入數據的函數
	public String readMsg(InputStream ins) throws Exception {
		// 讀取客戶真個信息
		int value = ins.read();
		// 讀取整行 讀取到回車（13）換行（10）時停止讀
		String str = "";
		while (value != 10) {
			//點擊關閉客戶端時會返回⑴值
			if(value ==⑴){
				throw new Exception();
			}
			str = str + ((char) value);
			value = ins.read();
		}
		str = str.trim();
		return str;
	}
	
	//獲得客戶端賬號和密碼的函數
	public void getMsg() throws Exception {
		str="please enter your name :";
		sendMsg(os, str);
		os.flush();
		name =readMsg(ins);
		
		str="please enter your password :";
		sendMsg(os, str);
		os.flush();
		pwd =readMsg(ins);

	}
	
	//校驗客戶端輸入的賬號和密碼的函數
	public boolean loginCheck() throws Exception{
		if(name.equals("zhou") && pwd.equals("zhou") 
				|| name.equals("user") && pwd.equals("pwd") 
				|| name.equals("huaxinjiaoyu") && pwd.equals("huaxinjiaoyu")){
			
			return true;
	   }
		return false;
 }
}

package com.huaxin.UI;

import java.awt.Color;
import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.IOException;

import javax.swing.JButton;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextField;

import com.huaxin.server.MyServer;
import com.huaxin.server.ServerThread;

public class StartPanel extends JPanel{
	
	public JTextField jtf;
	public JButton startBtn;
	public JButton stoptBtn;
	public boolean flag=true;
	public MyServer ms ;
	public TablePanel tablePanel;
	public InfoPanel infoPanel;
	
	/*
	 * 最上面的面板類
	 */
	public StartPanel(TablePanel tablePanel, InfoPanel infoPanel) {
		
		this.tablePanel=tablePanel;
		this.infoPanel=infoPanel;
	
		//創建相干組件
		JLabel label =new JLabel("端口號");
		jtf = new JTextField(10);
		startBtn = new JButton("啟動服務");
		//設置按鈕不可操作
		startBtn.setEnabled(false);
		stoptBtn = new JButton("關閉服務");
		stoptBtn.setEnabled(false);
		//設置背景色彩
		this.setBackground(Color.green);
		//設置面板大小
		this.setPreferredSize(new Dimension(0,50));
		this.setLayout(new FlowLayout());
		//組件添加
		this.add(label);
		this.add(jtf);
		this.add(startBtn);
		this.add(stoptBtn);
		//給兩個按鈕添加監聽器
		startBtn.addActionListener(al);
		stoptBtn.addActionListener(al);
		
		//檢測輸入框是不是為空
		checkText();
	}
	
	//按鈕監聽器的具體實現
	ActionListener al = new ActionListener() {
		public void actionPerformed(ActionEvent e) {
			String command =e.getActionCommand();
			if(command.equals("啟動服務")){
				//啟動服務的相干邏輯操作
				flag=false;
				int port =Integer.parseInt(jtf.getText());
				ms = new MyServer(port,tablePanel,infoPanel);
				infoPanel.ms=ms;
				stoptBtn.setEnabled(true);
				startBtn.setEnabled(false);
				//用線程處理，避免阻塞
				new Thread(){
					public void run() {
						ms.startServer();
					};
				}.start();
				
			}else if(command.equals("關閉服務")){
				try {
//					flag=true;
					//關閉服務邏輯實現
					//移除所有的客戶端
					while(ms.serverList.size()!=0) {
						ms.serverList.get(0).socket.close();
						ms.serverList.remove(0);
					}
					//服務器關閉
					ms.server.close();
					//設置按鈕可操作屬性
					stoptBtn.setEnabled(false);
					startBtn.setEnabled(true);
				} catch (IOException e1) {
					e1.printStackTrace();
				}
				
			}
		}
	};
	
	//線程檢測文本輸入框是不是有輸入
	public void checkText(){
		new Thread(){
			public void run() {
				while(flag){
					//獲得文本輸入框的信息
					String info=jtf.getText();
					//信息不為空或""，則可以啟動服務器
					if(!(info==null || info.equals(""))){
						startBtn.setEnabled(true);
					}
					
					try {
						this.sleep(500);
					} catch (InterruptedException e) {
						e.printStackTrace();
					}
				}
			};
		}.start();
	}
	

}

package com.huaxin.UI;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.util.Vector;

import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.table.DefaultTableModel;

public class TablePanel extends JPanel {
	
	public JTable table;
	public Vector<Vector<String>> data;
	
	public TablePanel() {
		//設置面板屬性
		this.setPreferredSize(new Dimension(450,0));
		this.setBackground(Color.white);
		this.setLayout(new BorderLayout());
		
		//創建表格
		Vector<String> colNames = new Vector<String>();
		colNames.add("用戶名");
		colNames.add("IP地址");
		colNames.add("登錄時間");
		data =new Vector<Vector<String>>();
		Vector<String> vs=new Vector<String>();
		
		//創建表格模型
		DefaultTableModel tm =new DefaultTableModel(data, colNames);
		table = new JTable(tm);
		//創建轉動條
		JScrollPane jsp =new JScrollPane(table);
		this.add(jsp);
	}
	
	

}

package com.huaxin.UI;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JButton;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.JTextField;

import com.huaxin.server.MyServer;

public class InfoPanel extends JPanel{
	
	
	public MyServer ms ;
	public JTextArea jta;
	public JTextField jtf;
	
	
	public InfoPanel() {
		//設置信息面板的屬性
		this.setPreferredSize(new Dimension(350,0));
		this.setBackground(Color.blue);
		this.setLayout(new BorderLayout());
		//文本輸入域
		jta = new JTextArea();
		//設置自動換行
		jta.setLineWrap(true);
		JScrollPane jsp = new JScrollPane(jta);
		this.add(jsp);
		//面板底部的發送面板
		jtf = new JTextField(25);
		JButton btn = new JButton("發送");
		//發送按鈕添加監聽器
		btn.addActionListener(al);
		JPanel panel=new JPanel();
		panel.setLayout(new FlowLayout());
		this.add(panel,BorderLayout.SOUTH);
		panel.add(jtf);
		panel.add(btn);
		
	}
	
	//監聽具體實現
	ActionListener al = new ActionListener() {
		
		public void actionPerformed(ActionEvent e) {
			//獲得內容
			String s=jtf.getText();
			//為空的提示信息
			if( s==null || "".equals(s)){
				JOptionPane.showMessageDialog(null, "輸入框不能為空！");
			}
			else if(ms.server.isClosed()){
				JOptionPane.showMessageDialog(null, "服務器已關閉，不能發送消息！");
			}else{
				try {
					//不為空，則將消息發送給服務器，服務器轉發給消息給每一個客戶端
					ms.sendMsgToClient(s);
					//清空文本
					jtf.setText("");
				} catch (Exception e1) {
					e1.printStackTrace();
				}
			}
		}
	};
}

package com.huaxin.UI;
import java.awt.BorderLayout;
import javax.swing.JFrame;

/*
 * 服務器后臺界面類
 */
public class UIFrame extends JFrame {
	
	public TablePanel tablePanel;
	public InfoPanel infoPanel ;

	public static void main(String[] args) {
		UIFrame ui = new UIFrame();
		ui.initFrame();
	}

	public void initFrame() {
		// 設置窗體的相干屬性
		this.setSize(800, 600);
		this.setTitle("服務器后臺界面");
		this.setDefaultCloseOperation(3);
		this.setLocationRelativeTo(null);
		this.setLayout(new BorderLayout());
		tablePanel = new TablePanel();
		infoPanel = new InfoPanel();
		StartPanel startPanel = new StartPanel(tablePanel,infoPanel);
		
		//在主頁面中添加3個面板
		this.add(startPanel,BorderLayout.NORTH);
		this.add(tablePanel, BorderLayout.CENTER);
		this.add(infoPanel, BorderLayout.EAST);
		this.setVisible(true);
	}	

}