java Swing 与socket 做的单线程聊天程序.doc

西安工业大学计算机科学与工程学院网络工程系组建技术J1实验报告班级：090612 姓名：唐 建 学号：0906121142011年10月17日一、实验目的 1 掌握InetAddress类的使用。2 掌握TCP与UDP编程：Socket与Datagram的概念和编程方法。3 掌握URL类的使用：URL的概念和编程。二、实验要求 通过Socket编程，掌握网络应用程序的开发方法；完成数据库的连接；掌握利用Java提供的基本组件进行网络传输；掌握Java提供的多线程机制，异常处理机制和低层对协议的通信机制，通过Socket编程，掌握网络应用程序的开发方法；设计测试，性能评估。上机练习之前，必须先完成程序的书写，再上机调试。三、实验内容 （一）使用InetAddress类的方法通过使用InetAddress类的方法，获取/的主机的IP地址；获取本地机的名称和IP地址。（二）Socket编程使用Socket编程，客户机发送数据到服务器，服务器将接收到的数据返回给客户机。（三）UDP编程使用UDP编程，客户机发送数据到服务器，服务器将接收到的数据返回给客户机（四）获取URL信息（五）利用URL类获取网络资源（六）利用URLConnection对URL资源的读取（七）掌握URLConnection对URL资源的写入四：程序如下:/服务器端代码(Server):package com.demo.test;import java.awt.BorderLayout;import java.awt.Font;import java.awt.Toolkit;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;import java.io.PrintWriter;import .ServerSocket;import .Socket;import javax.swing.JButton;import javax.swing.JFrame;import javax.swing.JOptionPane;import javax.swing.JPanel;import javax.swing.JScrollPane;import javax.swing.JTextArea;import javax.swing.JTextField;public class Server extends JFrame private JTextField textField = null;private JButton button = null;private JTextArea textArea = null;private JScrollPane scrollPane = null;private JPanel panel = null;private ServerSocket server = null;private Socket socket = null;private BufferedReader reader = null;private PrintWriter writer= null;private String msg = null;/存放接收到的消息private String message = null;/存放发送的消息private boolean flag= false;/判断客户端是否断开连接public Server()super();textField = new JTextField(40);button = new JButton(发送);textArea = new JTextArea();scrollPane = new JScrollPane();panel = new JPanel();this.add(scrollPane,BorderLayout.CENTER);this.add(panel,BorderLayout.SOUTH);scrollPane.setViewportView(textArea);panel.add(textField);textField.setFont(new Font(仿宋,Font.BOLD,18);textField.addActionListener(new ActionListener()public void actionPerformed(ActionEvent e) send(););panel.add(button);button.addActionListener(new ActionListener()public void actionPerformed(ActionEvent e) send(););this.setTitle(服务器端Server);this.setSize(500,500);this.setLocation(int)(Toolkit.getDefaultToolkit().getScreenSize().getWidth()/2-250),(int)(Toolkit.getDefaultToolkit().getScreenSize().getHeight()/2-250);this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);this.setVisible(true);/初始化服务器端try server = new ServerSocket(9999);/创建服务器，端口为9999this.textArea.append(服务器创建成功！);socket = server.accept();/等待客户端的连接reader = new BufferedReader(new InputStreamReader(socket.getInputStream();writer = new PrintWriter(socket.getOutputStream(),true);writer.println(服务器已经连接成功！);writer.flush();domsg = reader.readLine();/读取客户端发来的消息this.textArea.append(msg+n);if(msg.equalsIgnoreCase(客户端说:bye)flag = true;break;while(true);catch (IOException e) / TODO Auto-generated catch blockthis.textArea.append(创建服务器失败);finallytrywriter.close();reader.close();socket.close();server.close();catch (IOException e) / TODO Auto-generated catch blockthis.textArea.append(关闭服务器时发生异常！);public void send()/发送消息的方法message = textField.getText().trim();if(flag)JOptionPane.showMessageDialog(getContentPane(), 客户端已经离开，不能发送消息,信息提示框,JOptionPane.WARNING_MESSAGE);else if(message.equals()|(message.equals(null)JOptionPane.showMessageDialog(getContentPane(), 消息不能为空,消息警告框,JOptionPane.WARNING_MESSAGE);else writer.println(服务器说:+message);writer.flush();textArea.append(你说：+message+n);textField.setText();/清空文本框if(message.equalsIgnoreCase(bye)try writer.close();reader.close();socket.close();server.close(); catch (IOException e1) / TODO Auto-generated catch blocktextArea.append(服务器关闭时发生异常);public static void main(String args) Server server = new Server();客户端代码如下(Client)：package com.demo.test;import java.awt.BorderLayout;import java.awt.Font;import java.awt.Toolkit;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;import java.io.PrintWriter;import .ServerSocket;import .Socket;import javax.swing.JButton;import javax.swing.JFrame;import javax.swing.JOptionPane;import javax.swing.JPanel;import javax.swing.JScrollPane;import javax.swing.JTextArea;import javax.swing.JTextField;public class Client extends JFrame private JTextField textField = null;private JButton button = null;private JTextArea textArea = null;private JScrollPane scrollPane = null;private JPanel panel = null;private Socket socket = null;private BufferedReader reader = null;private PrintWriter writer= null;private String msg = null;/存放接收到的消息private String message = null;/存放发送的消息private boolean flag= false;/判断服务器是否停止public Client()super();textField = new JTextField(40);button = new JButton(发送);textArea = new JTextArea();scrollPane = new JScrollPane();panel = new JPanel();this.add(scrollPane,BorderLayout.CENTER);this.add(panel,BorderLayout.SOUTH);scrollPane.setViewportView(textArea);panel.add(textField);textField.setFont(new Font(仿宋,Font.BOLD,18);textField.addActionListener(new ActionListener()public void actionPerformed(ActionEvent e) send(););panel.add(button);button.addActionListener(new ActionListener()public void actionPerformed(ActionEvent e) send(););this.setTitle(客户端Client);this.setSize(500,500);this.setLocation(int)(Toolkit.getDefaultToolkit().getScreenSize().getWidth()/2-250),(int)(Toolkit.getDefaultToolkit().getScreenSize().getHeight()/2-250);this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);this.setVisible(true);/初始化客户端try socket = new Socket(,9999);/连接客户端reader = new BufferedReader(new InputStreamReader(socket.getInputStream();writer = new PrintWriter(socket.getOutputStream(),true);domsg = reader.readLine();/读取服务器发来的消息this.textArea.append(msg+n);if(msg.equalsIgnoreCase(服务器说:bye)flag = true;break;while(true);catch (IOException e) / TODO Auto-generated catch blockthis.textArea.append(创建客户端失败);finallytrywriter.close();reader.close();socket.close();catch (IOException e) / TODO Auto-generated catch blockthis.textArea.append(关闭连接时发生异常！);public void send()/发送消息message = textField.getText().trim();if(flag)JOptionPane.showMessageDialog(getContentPane(), 服务器已停止，不能发送消息,信息提示框,JOptionPane.WARNING_MESSAGE);else if(message.equals()|(message.equals(null)JOptionPane.showMessageDialog(getContentPane(), 消息不能为空,消息警告框,JOptionPane.WARNI