socket实例2

  1 package com.jikexueyuan.myjavachatclient.view;
  2 
  3 import java.awt.event.MouseAdapter;
  4 import java.awt.event.MouseEvent;
  5 
  6 import javax.swing.GroupLayout;
  7 import javax.swing.GroupLayout.Alignment;
  8 import javax.swing.JButton;
  9 import javax.swing.JFrame;
 10 import javax.swing.JPanel;
 11 import javax.swing.JTextArea;
 12 import javax.swing.JTextField;
 13 import javax.swing.LayoutStyle.ComponentPlacement;
 14 import javax.swing.border.EmptyBorder;
 15 
 16 import com.jikexueyuan.myjavachatclient.main.ChatManager;
 17 
 18 public class MainWIndow extends JFrame {
 19 
 20     /**
 21      * 
 22      */
 23     private static final long serialVersionUID = 1L;
 24     private JPanel contentPane;
 25     JTextArea txt;
 26     private JTextField ip;
 27     private JTextField send;
 28 
 29 
 30 
 31     /**
 32      * Create the frame.
 33      */
 34     public MainWIndow() {
 35         setAlwaysOnTop(true);
 36         setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
 37         setBounds(100, 100, 450, 300);
 38         contentPane = new JPanel();
 39         contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
 40         setContentPane(contentPane);
 41         
 42         txt = new JTextArea();
 43         txt.setText("Ready...");
 44         
 45         ip = new JTextField();
 46         ip.setText("127.0.0.1");
 47         ip.setColumns(10);
 48         
 49         JButton button = new JButton("连接到服务器");
 50         button.addMouseListener(new MouseAdapter() {
 51             @Override
 52             public void mouseClicked(MouseEvent arg0) {
 53                 ChatManager.getCM().connect(ip.getText());
 54             }
 55         });
 56         
 57         send = new JTextField();
 58         send.setText("你好");
 59         send.setColumns(10);
 60         
 61         JButton button_1 = new JButton("发送");
 62         button_1.addMouseListener(new MouseAdapter() {
 63             @Override
 64             public void mouseClicked(MouseEvent arg0) {
 65                 ChatManager.getCM().send(send.getText());
 66                 appendText("我说："+send.getText());
 67                 send.setText("");
 68             }
 69         });
 70         GroupLayout gl_contentPane = new GroupLayout(contentPane);
 71         gl_contentPane.setHorizontalGroup(
 72             gl_contentPane.createParallelGroup(Alignment.LEADING)
 73                 .addGroup(Alignment.TRAILING, gl_contentPane.createSequentialGroup()
 74                     .addGroup(gl_contentPane.createParallelGroup(Alignment.TRAILING)
 75                         .addGroup(gl_contentPane.createSequentialGroup()
 76                             .addContainerGap()
 77                             .addComponent(txt, GroupLayout.DEFAULT_SIZE, 434, Short.MAX_VALUE))
 78                         .addGroup(gl_contentPane.createSequentialGroup()
 79                             .addContainerGap()
 80                             .addComponent(ip, GroupLayout.DEFAULT_SIZE, 306, Short.MAX_VALUE)
 81                             .addPreferredGap(ComponentPlacement.RELATED)
 82                             .addComponent(button))
 83                         .addGroup(gl_contentPane.createSequentialGroup()
 84                             .addComponent(send, GroupLayout.DEFAULT_SIZE, 272, Short.MAX_VALUE)
 85                             .addPreferredGap(ComponentPlacement.RELATED)
 86                             .addComponent(button_1, GroupLayout.PREFERRED_SIZE, 162, GroupLayout.PREFERRED_SIZE)))
 87                     .addContainerGap())
 88         );
 89         gl_contentPane.setVerticalGroup(
 90             gl_contentPane.createParallelGroup(Alignment.LEADING)
 91                 .addGroup(gl_contentPane.createSequentialGroup()
 92                     .addGroup(gl_contentPane.createParallelGroup(Alignment.BASELINE)
 93                         .addComponent(ip, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
 94                         .addComponent(button))
 95                     .addPreferredGap(ComponentPlacement.RELATED)
 96                     .addComponent(txt, GroupLayout.DEFAULT_SIZE, 196, Short.MAX_VALUE)
 97                     .addPreferredGap(ComponentPlacement.RELATED)
 98                     .addGroup(gl_contentPane.createParallelGroup(Alignment.BASELINE)
 99                         .addComponent(send, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
100                         .addComponent(button_1)))
101         );
102         contentPane.setLayout(gl_contentPane);
103     }
104 
105     
106     public void appendText(String in) {
107         txt.append("\n"+in);
108     }
109 }

 1 package com.jikexueyuan.myjavachatclient.main;
 2 
 3 import java.awt.EventQueue;
 4 
 5 import com.jikexueyuan.myjavachatclient.view.MainWIndow;
 6 
 7 public class StartClient {
 8 
 9     public static void main(String[] args) {
10         EventQueue.invokeLater(new Runnable() {
11             public void run() {
12                 try {
13                     MainWIndow frame = new MainWIndow();
14                     frame.setVisible(true);
15                     ChatManager.getCM().setWindow(frame);
16                 } catch (Exception e) {
17                     e.printStackTrace();
18                 }
19             }
20         });
21     }
22 
23 }

 1 package com.jikexueyuan.myjavachatclient.main;
 2 
 3 import java.io.BufferedReader;
 4 import java.io.IOException;
 5 import java.io.InputStreamReader;
 6 import java.io.OutputStreamWriter;
 7 import java.io.PrintWriter;
 8 import java.net.Socket;
 9 import java.net.UnknownHostException;
10 
11 import com.jikexueyuan.myjavachatclient.view.MainWIndow;
12 
13 
14 public class ChatManager {
15 
16     private ChatManager(){}
17     private static final ChatManager instance = new ChatManager();
18     public static ChatManager getCM() {
19         return instance;
20     }
21     
22     MainWIndow window;
23     String IP;
24     Socket socket;
25     BufferedReader reader;
26     PrintWriter writer;
27     
28     public void setWindow(MainWIndow window) {
29         this.window = window;
30         window.appendText("文本框已经和ChatManager绑定了。");
31     }
32     
33     public void connect(String ip) {
34         this.IP = ip;
35         new Thread(){
36 
37             @Override
38             public void run() {
39                 try {
40                     socket = new Socket(IP, 12345);
41                     writer = new PrintWriter(
42                             new OutputStreamWriter(
43                                     socket.getOutputStream()));
44                     
45                     reader = new BufferedReader(
46                             new InputStreamReader(
47                                     socket.getInputStream()));
48                     String line;
49                     while ((line = reader.readLine()) != null) {
50                         window.appendText("收到："+line);
51                     }
52                     writer.close();
53                     reader.close();
54                     writer = null;
55                     reader = null;
56                 } catch (UnknownHostException e) {
57                     e.printStackTrace();
58                 } catch (IOException e) {
59                     e.printStackTrace();
60                 }
61             }
62         }.start();
63     }
64     
65     public void send(String out) {
66         if (writer != null) {
67             writer.write(out+"\n");
68             writer.flush();
69         }else {
70             window.appendText("当前的链接已经中断");
71         }
72     }
73 }