本文共 5675 字，大约阅读时间需要 18 分钟。

package com.wode.test;import java.io.DataInputStream;import java.io.DataOutputStream;import java.io.IOException;import java.net.ServerSocket;import java.net.Socket;import java.util.zip.DeflaterOutputStream;public class Myserver extends Thread {    private ServerSocket serversocket;    public Myserver(int port) throws IOException {        serversocket = new ServerSocket(port);        //设置服务器超时时间        serversocket.setSoTimeout(10000);    }    @Override    public void run() {        while (true) {            try {                Socket socket = serversocket.accept();                DataOutputStream dStream = new DataOutputStream(socket.getOutputStream());                dStream.writeUTF("我是网吧小妹 你要干嘛？");                                DataInputStream doStream = new DataInputStream(socket.getInputStream());                String string = doStream.readUTF();                                switch (string) {                    case "你好":                        dStream.writeUTF("网吧小妹也对你说你好");                        break;                    case "我爱你":                        dStream.writeUTF("我也爱你");                        break;                    case "充值":                        dStream.writeUTF("充值成功");                        break;                    case "买烟":                        dStream.writeUTF("给你烟");                        break;                    case "约吗":                        dStream.writeUTF("叔叔不约");                        break;                    case "买饮料":                        dStream.writeUTF("给你饮料");                        break;                    case "伤心":                        dStream.writeUTF("心若向阳 无惧悲伤");                        break;                    case "滚蛋":                        dStream.writeUTF("别对我那么凶嘛");                        break;                    case "失恋":                        dStream.writeUTF("天涯何处无芳草 何必单恋一支花");                        break;                    default:                        dStream.writeUTF("我不知道你在说什么诶= =");                        break;                }            } catch (IOException e) {                e.printStackTrace();            }        }    }    public static void main(String[] args) throws IOException {        Thread server = new Myserver(9876);        server.start();    }}package com.wode.test;import java.awt.Font;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.awt.event.FocusEvent;import java.awt.event.FocusListener;import java.io.DataInputStream;import java.io.DataOutputStream;import java.io.IOException;import java.net.Socket;import java.net.UnknownHostException;import javax.swing.JButton;import javax.swing.JFrame;import javax.swing.JLabel;import javax.swing.JPanel;import javax.swing.JTextField;public class MrchenUser extends JFrame {    private JLabel jlLabel;    private JTextField txtinput;    public MrchenUser() {        this.setSize(400, 300);        this.setLocationRelativeTo(null);        this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);        this.setResizable(false);        JPanel jPanel = new JPanel();        jPanel.setLayout(null);        jPanel.setBounds(1, 1, 500, 400);        jlLabel = new JLabel("我是网吧小妹 你要干嘛？");        jlLabel.setFont(new Font("正楷", Font.BOLD, 20));        jlLabel.setBounds(0, 0, 400, 80);        jPanel.add(jlLabel);        txtinput = new JTextField();        txtinput.setBounds(0, 135, 400, 100);        jPanel.add(txtinput);        txtinput.addFocusListener(new txtinput(this, jlLabel));        JButton okbtn = new JButton("发送");        okbtn.setBounds(245, 240, 60, 30);        jPanel.add(okbtn);        okbtn.addActionListener(new okListener(txtinput, jlLabel));        JButton cancelbtn = new JButton("取消");        cancelbtn.setBounds(320, 240, 60, 30);        jPanel.add(cancelbtn);        this.add(jPanel);        this.setVisible(true);    }    public static void main(String[] args) {        new MrchenUser();    }    static class okListener implements ActionListener {        private JTextField txtinput;        private JLabel jlLabel;        public okListener(JTextField txtinput, JLabel jlLabel) {            this.txtinput = txtinput;            this.jlLabel = jlLabel;        }        @Override        public void actionPerformed(ActionEvent arg0) {            try {                Socket socket = new Socket("localhost", 9876);                DataInputStream dStream = new DataInputStream(socket.getInputStream());                String string = dStream.readUTF();                jlLabel.setText(string);                DataOutputStream doStream = new DataOutputStream(socket.getOutputStream());                doStream.writeUTF(txtinput.getText());                DataInputStream dStream1 = new DataInputStream(socket.getInputStream());                String string1 = dStream.readUTF();                jlLabel.setText(string1);            } catch (UnknownHostException e) {                e.printStackTrace();            } catch (IOException e) {                e.printStackTrace();            }        }    }    static class txtinput implements FocusListener {        private JTextField txtinput;        private JLabel jlLabel;        public txtinput(JTextField txtinput, JLabel jlLabel) {            this.txtinput = txtinput;            this.jlLabel = jlLabel;        }        @Override        public void focusGained(FocusEvent arg0) {            if (txtinput.getText().length() != 0) {                jlLabel.setText("我是网吧小妹 你要干嘛？");            }        }        @Override        public void focusLost(FocusEvent arg0) {            if (txtinput.getText().length() == 0) {                jlLabel.setText("我是网吧小妹 你要干嘛？");            }        }    }}