一个Java实现的简单的多个客户端聊天程序(未测试)

来源：互联网发布：淘宝已买到的宝贝编辑：程序博客网时间：2024/05/16 04:58

客户端

import java.awt.*;import java.awt.event.*;import java.io.*;import java.lang.*;import java.net.*;public class HeartClient extends Frame {    /*     *  成员方法出场...     */    private TextField tfText;    private TextArea taContent;    private Socket s;    private DataOutputStream dos;    private DataInputStream dis;    /**     * 注意，入口... ^^     * @param args     */    public static void main(String[] args) {        new HeartClient().launchFrame();    }    /**     * Loading GU     */    public void launchFrame(){        tfText = new TextField();        taContent = new TextArea();        this.setSize(300,300);        this.setLocation(300,300);        this.tfText.addActionListener(new TFListener());        this.add(tfText,BorderLayout.SOUTH);        this.add(taContent,BorderLayout.NORTH);        this.addWindowListener(new WindowAdapter(){            @Override            public void windowClosing(WindowEvent e) {                System.exit(0);            }});        this.pack();        this.connect();        this.setVisible(true);    }    /**     * 我在努力地连接服务器中...     */    public void connect() {        try {            s = new Socket("127.0.0.1",1720);            dos = new DataOutputStream(s.getOutputStream());            dis = new DataInputStream(s.getInputStream());            new Thread(new SendThread()).start();//          dos.writeUTF("Hello,i find u!");        } catch (UnknownHostException e) {            System.out.println("UnknownHostException");            e.printStackTrace();        } catch (IOException e) {            System.out.println("IOException");            e.printStackTrace();        }finally{            //关闭啥尼...        }    }    /**     * 额不会傻等着tfText(TextField tfText的监听器类)     */    class TFListener implements ActionListener{        private String str;        @Override        public void actionPerformed(ActionEvent e) {            str = tfText.getText().trim();            tfText.setText("");            try {                dos.writeUTF(str);            } catch (IOException e1) {                System.out.println("IOException");                e1.printStackTrace();            }        }    }    /**     * 客户端接收消息的线程呦...     *     */    class SendThread implements Runnable{        private String str;        private boolean iConnect = false;        public void run(){            iConnect = true;            recMsg();        }        /**         * 消息，看招，哪里跑...（客户端接收消息的实现）         * @throws IOException          */        public void recMsg() {            try {                while(iConnect){                    str = dis.readUTF();                    taContent.setText(str);                }            } catch (IOException e) {                e.printStackTrace();            }        }    }}

                                服务器端

import java.io.*;import java.net.*;import java.util.*;public class HeartServer {    /*     * 成员变量闪亮登场     */    List<ClientThread> clients = new ArrayList<ClientThread>();    /**     * 这系入口啊，向这里看齐...     * @param args     */    public static void main(String[] args) {        new HeartServer().start();    }    /**     * 启动服务器中...     *     */    public void start(){        try {            boolean iConnect = false;            ServerSocket ss = new ServerSocket(1720);            iConnect = true;            while(iConnect){System.out.println("绑定服务器端口成功！");                Socket s = ss.accept();                ClientThread currentClient = new ClientThread(s);//创建线程引用System.out.println("发现客户端！");                clients.add(currentClient);//把当前客户端加入集合                new Thread(currentClient).start();System.out.println("客户端进程已经启动！");            }        } catch (IOException e) {            System.out.println("IOException");            e.printStackTrace();        }    }    /**     * 给每个客户端留个家（客户端的进程）     *     */    class ClientThread implements Runnable {        /*         * 成员变量又来啦...         */        private Socket s;        private DataInputStream dis;        private DataOutputStream dos;        private String str;        private boolean iConnect = false;        /**         * 小构一下         */        ClientThread(Socket s){            this.s = s;            iConnect = true;        }        public void run(){System.out.println("run方法启动了！");            try {                while(iConnect){System.out.println("RUN方法中的while循环启动，正在等待客户端的发送消息...");                    dis = new DataInputStream(s.getInputStream());                    str = dis.readUTF();System.out.println(str);                    for(int i=0; i<clients.size(); i++){System.out.println("转发消息中..."+i);                        ClientThread c = clients.get(i);                        c.sendMsg(str);                    }                }            } catch (IOException e) {                e.printStackTrace();            }        }        /**         * 转发消息，我做主...         * 将送至服务器的消息发送给每个连接到的客户端         */        public void sendMsg(String str){            try {System.out.println("创建输出管道！");                dos = new DataOutputStream(this.s.getOutputStream());System.out.println("正在向客户端写消息！");                dos.writeUTF(str);System.out.println("正在向客户端写消息成功！");                     } catch (IOException e) {                e.printStackTrace();            }        }    }}

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