介于JAVAswing和Socket写的聊天室

在厦门的第一阶段给我们复习了JAVASE基础，第一阶段的小玩具叫我们自选题材，我自己选了聊天室这个内容，这个小玩具无论是线程，还是网络编程，都会涉及到，比较有综合性，所以我选了这个；

这是我的包体结构：

类包，JDBC工具包，界面包

首先讲一下思路，聊天室是一个端对端的数据传输平台，然而Socket一般来说只是个点对点的数据传输，这样的话，为了解决这个问题，我将所有的接入本服务器的客户端都给了一个List接收，离开时通过语句判断将他移除，有客户端发消息时便将信息广播给在List中的客户端，代码如下：

public class Server {
    int port;
    List<Socket> clients;//接入本服务器的客户端
    ServerSocket server;

    public static void main(String[] args) {
        new Server();
    }

    public Server() {
        try {
            port = 8080;
            clients = new ArrayList<Socket>();
            server = new ServerSocket(port);
            System.out.println("...........");
            while (true) {
                //时刻监测是否有客户端接入，接入则加入
                Socket socket = server.accept();
                System.out.println(socket);
                clients.add(socket);
                Mythread mythread = new Mythread(socket);
                mythread.start();

            }

        } catch (Exception ex) {
            ex.printStackTrace();
        }
    }
    class Mythread extends Thread {
        Socket ssocket;
        private BufferedReader br;
        private PrintWriter pw;
        public String msg;

        public Mythread(Socket s) {
            ssocket = s;
        }

        public void run() {
            //该方法用于监测是否有客户端传来消息
            try {
                br = new BufferedReader(new InputStreamReader(
                        ssocket.getInputStream()));
                msg = "欢迎进入聊天室！当前聊天室有【"
                        + clients.size() + "】人";
                sendMsg();
                while ((msg = br.readLine()) != null) {
                    msg = "【" + ssocket.getInetAddress() + "】" + msg;
                    sendMsg();

                }
            } catch (Exception ex) {
                ex.printStackTrace();
            }
        }

        public void sendMsg() {
            try {// 监测发内容是否是离开格式
                System.out.println(msg);
                String[] aaStrings = msg.split("-");
                for (int i = 0; i < clients.size(); i++) {
                    if (clients.get(i).toString().split(",")[0]
                            .equals(aaStrings[1].split(",")[0])) {
                        System.out.println("有人离开了聊天室！！");
                        clients.remove(i);
                        break;
                    }
                }

            } catch (Exception ex) {
                for (int i = 0; i < clients.size(); i++) {//遍历发送信息
                    try {
                        pw = new PrintWriter(clients.get(i).getOutputStream(),
                                true);
                    } catch (IOException e) {
                        // TODO Auto-generated catch block
                        e.printStackTrace();
                    }
                    pw.println(msg);
                    pw.flush();
                }
            }

        }
    }

}

将这个问题解决了，客户端便也不是个难题了，我把发送消息封装在了Client中：

public class ClientDao {
        Socket socket;
        String message;

        public ClientDao(String message, Socket socket) {
            this.message = message;
            this.socket = socket;
        }
        //发送消息
        public void send(String message, Socket socket) {
            OutputStream os;
            try {
                //获取socket的输出流
                os = socket.getOutputStream();
                BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(os));
                //将消息发送出去
                bw.write(message);
                //换行
                bw.newLine();
                bw.flush(); // 清空缓存
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        }

}

由于我需要将用户信息传输给下一个页面，于是我将窗口的构造方法重写了具体实现代码如下：

public class TalkClient extends JFrame {
    /**
     *
     */
    private static final long serialVersionUID = 1L;
    private JPanel contentPane;
    private JTextField sendText;
    private JTextArea jta;
    public static boolean connect = false; // 客户端是否连接
    ClientDao cDao;
     public int port = 8080;
        Socket socket = null;
        String msg2;
    /**
     * Launch the application.
     */
    public static void main(String[] args) {
        EventQueue.invokeLater(new Runnable() {
            public void run() {
                try {
                    TalkClient frame = new TalkClient();
                    frame.setVisible(true);
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        });
    }

    /**
     * Create the frame.
     */
    public TalkClient() {
        addWindowListener(new WindowAdapter() {
            @Override
            public void windowClosing(WindowEvent e) {
                msg2= "asdasd" +"-"+socket+"-"+"close";
                cDao=new ClientDao(msg2, socket);
                cDao.send(msg2, socket);

            }
        });

        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setBounds(100, 100, 505, 477);
        contentPane = new JPanel();
        contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
        setContentPane(contentPane);
        contentPane.setLayout(null);

        sendText = new JTextField();
        sendText.setBounds(120, 257, 343, 43);
        contentPane.add(sendText);
        sendText.setColumns(10);

        JLabel label = new JLabel("\u6D88\u606F\u8BB0\u5F55\uFF1A");
        label.setBounds(34, 15, 76, 15);
        contentPane.add(label);
        jta= new JTextArea();
        JScrollPane jsp = new JScrollPane(jta);
        jsp.setBounds(120, 10, 343, 220);
        jsp.setVerticalScrollBarPolicy( JScrollPane.VERTICAL_SCROLLBAR_ALWAYS);
        getContentPane().add(jsp);
        JLabel label_1 = new JLabel("\u5F85\u53D1\u9001\u6D88\u606F\uFF1A");
        label_1.setBounds(34, 271, 76, 15);
        contentPane.add(label_1);
        JLabel namelb = new JLabel("");
        namelb.setBounds(90, 354, 54, 15);
        contentPane.add(namelb);
        JButton sendBtn = new JButton("\u53D1\u9001");
        sendBtn.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                //發送消息
                //msg2=sendText.getText().toString().trim();
                //jta.append("\n客户端说:" + sendText.getText().toString());
                msg2 = sendText.getText().toString() ;
                //System.out.println(socket);
                cDao=new ClientDao(msg2, socket);
                cDao.send(msg2, socket);

            }
        });
        sendBtn.setBounds(301, 350, 93, 23);
        contentPane.add(sendBtn);
        connectServer();

        new Thread(new Runnable() {
            public void run() {
                try {
                    BufferedReader br = new BufferedReader(new InputStreamReader(socket.getInputStream()));
                    String msg1;
                    while ((msg1 = br.readLine()) != null) {
                        jta.append("\n"+":"+msg1);
                    }
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        }).start();
    }

    public TalkClient(final User user) {
        // TODO Auto-generated constructor stub

        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setBounds(100, 100, 505, 477);
        contentPane = new JPanel();
        contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
        setContentPane(contentPane);
        contentPane.setLayout(null);

        sendText = new JTextField();
        sendText.setBounds(120, 257, 343, 43);
        contentPane.add(sendText);
        sendText.setColumns(10);

        JLabel label = new JLabel("\u6D88\u606F\u8BB0\u5F55\uFF1A");
        label.setBounds(34, 15, 76, 15);
        contentPane.add(label);

        jta= new JTextArea();
        JScrollPane jsp = new JScrollPane(jta);
        jsp.setBounds(120, 10, 343, 220);
        jsp.setVerticalScrollBarPolicy( JScrollPane.VERTICAL_SCROLLBAR_ALWAYS);
        getContentPane().add(jsp);

        JLabel label_1 = new JLabel("\u5F85\u53D1\u9001\u6D88\u606F\uFF1A");
        label_1.setBounds(34, 271, 76, 15);
        contentPane.add(label_1);

        JLabel namelb = new JLabel("");
        namelb.setBounds(90, 354, 54, 15);
        contentPane.add(namelb);  

        JButton sendBtn = new JButton("\u53D1\u9001");
        sendBtn.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                //發送消息
                //jta.append(user.getUserName() + sendText.getText().toString());
                msg2 =user.getUserName()+"说："+ sendText.getText().toString() ;
                //System.out.println(socket);
                cDao=new ClientDao(msg2, socket);
                cDao.send(msg2, socket);

            }
        });
        sendBtn.setBounds(301, 350, 93, 23);
        contentPane.add(sendBtn);
        connectServer();
        namelb.setText(user.getUserName());

        new Thread(new Runnable() {
            public void run() {
                try {
                    BufferedReader br = new BufferedReader(new InputStreamReader(socket.getInputStream()));
                    String msg1;
                    while ((msg1 = br.readLine()) != null) {
                        System.out.println("xiaoxi"+msg1);
                        jta.append("\n"+msg1);
                    }
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        }).start();

            addWindowListener(new WindowAdapter() {
                @Override
                public void windowClosing(WindowEvent e) {
                    msg2=user.getUserName()+"-"+socket+"-"+"close";
                    cDao=new ClientDao(msg2, socket);
                    cDao.send(msg2, socket);
                }
        });

    }
    public boolean connectServer() {
        try {
            // 获取输入的IP地址，并且进行连接
            socket = new Socket("192.168.6.196", 8080);
            jta.append("\n连接服务器成功！");
            connect = true;
            return true;
        } catch (UnknownHostException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
            jta.append("\n连接失败");
        }
        return false;
    }
}

这里我就不将那些JDBC，贴上来了，基本上这样就好了