import?java.awt.EventQueue;

import?javax.swing.Jframe;
import?javax.swing.JOptionPane;
import?javax.swing.JPanel;
import?javax.swing.border.EmptyBorder;
import?javax.swing.JLabel;
import?java.awt.Font;
import?javax.swing.JButton;
import?java.awt.event.ActionListener;
import?java.awt.event.ActionEvent;
import?java.io.DataInputStream;
import?java.io.DataOutputStream;
import?java.io.IOException;
import?java.net.ServerSocket;
import?java.net.Socket;
import?java.net.UnknownHostException;

import?javax.swing.JScrollPane;
import?javax.swing.JTextArea;


@SuppressWarnings（“serial“）
public?class?CLient?extends?Jframe?implements?Runnable{

	private?JPanel?contentPane;
????private?int?port;//設置的客戶端端口號
????private?String?sendToip;//要接收方的ip地址
????private??int?sendToport;//要接受方的端口號
????private?String?text;//要發送的明文
????private?String?result;
????ServerSocket?ss=null;
????private?Socket?socket=null;
????private?Thread?thread=null;//該線程打開特定的端口號等待連接
????private?DES?des=null;?
????/**
	?*?Launch?the?application.
	?*/
????JTextArea?resultArea;
????JTextArea?mingwen;
????JTextArea?ipArea;
????JTextArea?portArea;
????JTextArea?portSelf;
????
	public?static?void?main（String[]?args）?{
		EventQueue.invokeLater（new?Runnable（）?{
			public?void?run（）?{
				try?{
					CLient?frame?=?new?CLient（）;
					frame.setVisible（true）;
				}?catch?（Exception?e）?{
					e.printStackTrace（）;
				}
			}
		}）;
	}
	/**
	?*?Create?the?frame.
	?*/
	public?CLient（）?throws?Exception{
		
		settitle（“\u52A0/\u89E3\u5BC6\u8F6F\u4EF6\u5BA2\u6237\u7AEF“）;
		setDefaultCloseOperation（Jframe.EXIT_ON_CLOSE）;
		setBounds（100?100?661?483）;
		contentPane?=?new?JPanel（）;
		contentPane.setBorder（new?EmptyBorder（5?5?5?5））;
		setContentPane（contentPane）;
		contentPane.setLayout（null）;
		
		JScrollPane?scrollPane?=?new?JScrollPane（）;
		scrollPane.setBounds（10?10?625?248）;
		contentPane.add（scrollPane）;
		
		resultArea?=?new?JTextArea（）;
		resultArea.setFont（new?Font（“Monospaced“?Font.PLAIN?16））;
		resultArea.setLineWrap（true）;
		scrollPane.setViewportView（resultArea）;
		
		mingwen?=?new?JTextArea（）;
		mingwen.setFont（new?Font（“Monospaced“?Font.PLAIN?18））;
		mingwen.setBounds（101?387?413?34）;
		contentPane.add（mingwen）;
		des=new?DES（）;
		
		//為發送按鈕添加消息響應函數
		JButton?sendbtn?=?new?JButton（“\u53D1\u9001“）;
		sendbtn.addActionListener（new?ActionListener（）?{
			public?void?actionPerformed（ActionEvent?e）?{
				text=mingwen.getText（）;
				try?{
					DataOutputStream?dos=new?DataOutputStream（socket.getOutputStream（））;
					resultArea.setText（text）;
					//?利用des進行加密并發送密文
					des.setMingwen（text）;
					try?{
						byte?[]ctext=des.encrypt（）;//加密
						int?len;
						len=ctext.length;
			????????	dos.writeInt（len）;
			????????	System.out.println（“len=“+len）;
						dos.write（ctext?0?len）;
						
					}?catch?（Exception?e1）?{
						e1.printStackTrace（）;
					}
					
					//dos.writeUTF（text）;
					

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2014-02-09?09:37??DES\
?????文件?????????301??2014-02-09?09:37??DES\.classpath
?????文件?????????384??2014-02-09?09:37??DES\.project
?????目錄???????????0??2014-02-09?09:37??DES\.settings\
?????文件?????????629??2014-02-09?09:37??DES\.settings\org.eclipse.jdt.core.prefs
?????目錄???????????0??2014-02-09?09:37??DES\bin\
?????文件?????????677??2014-02-09?09:37??DES\bin\CLient$1.class
?????文件????????1966??2014-02-09?09:37??DES\bin\CLient$2.class
?????文件?????????921??2014-02-09?09:37??DES\bin\CLient$3.class
?????文件?????????570??2014-02-09?09:37??DES\bin\CLient$4.class
?????文件????????1530??2014-02-09?09:37??DES\bin\CLient$5.class
?????文件????????6361??2014-02-09?09:37??DES\bin\CLient.class
?????文件????????3202??2014-02-09?09:37??DES\bin\DES.class
?????文件?????????282??2014-02-09?09:37??DES\key.dat
?????文件??????????24??2014-02-09?09:37??DES\keykb.dat
?????文件??????????16??2014-02-09?09:37??DES\SEnc.dat
?????目錄???????????0??2014-02-09?09:37??DES\src\
?????文件????????7038??2014-02-09?09:37??DES\src\CLient.java
?????文件????????3214??2014-02-09?09:37??DES\src\DES.java