java chat

import java.awt.*; import java.awt.event.*; import java.net.*; import javax.swing.*; import java.util.GregorianCalendar; import javax.swing.JDialog; import java.io.*; public class MyselfChat extends Frame implements ActionListener{ Label label1=new Label("请输入你要发送的信息（限英文）："); Label label3=new Label("把以上消息发给右边所填写的IP地址"); TextArea input=new TextArea("",7,14,TextArea.SCROLLBARS_VERTICAL_ONLY); TextArea output=new TextArea("",18,14,TextArea.SCROLLBARS_VERTICAL_ONLY); TextField IPAdd=new TextField("10.255.8.86"); Button send=new Button("发送消息"); Button clear=new Button("清空消息"); GregorianCalendar time = new GregorianCalendar(); Container con; MenuItem readin; MyselfChat(){ //下面代码用来实现菜单栏！ MenuBar mb = new MenuBar(); Menu file = new Menu("文件"); Menu chat = new Menu("聊天"); Menu disport = new Menu("娱乐"); Menu yingyong = new Menu("应用"); Menu toolkits = new Menu("工具"); Menu help = new Menu("帮助"); Menu readout = new Menu("导出[O]"); MenuShortcut sl1 = new MenuShortcut('I'), //实现快捷键功能 sl2 = new MenuShortcut('O'), sl3 = new MenuShortcut('B'), sl4 = new MenuShortcut('C'), sl5 = new MenuShortcut('K'), sl6 = new MenuShortcut('E'), sl7 = new MenuShortcut('U'), sl8 = new MenuShortcut('D'); myMenuItemListener itemListener = new myMenuItemListener(this); readin = new MenuItem("导入[I]",sl1); readin.addActionListener(itemListener); file.add(readin); MenuItem backUp = new MenuItem("备份[B].....",sl3); backUp.addActionListener(itemListener); readout.add(backUp); readout.addSeparator(); MenuItem backUpIntxt = new MenuItem("导出聊天记录为文本文件[C]",sl4); backUpIntxt.addActionListener(itemListener); readout.add(backUpIntxt); MenuItem backUpInbackUptxt = new MenuItem("导出聊天记录为备份文件[K]",sl5); backUpInbackUptxt.addActionListener(itemListener); readout.add(backUpInbackUptxt); readout.addActionListener(itemListener); file.add(readout); file.addSeparator(); //在菜单项之间加上分割线 MenuItem UpPass = new MenuItem("上传聊天记录[U]",sl7); UpPass.addActionListener(itemListener); file.add(UpPass); MenuItem DownLoad = new MenuItem("下载聊天记录[D]",sl8); DownLoad.addActionListener(itemListener); file.add(DownLoad); file.addSeparator(); //在菜单项之间加上分割线 MenuItem Exit = new MenuItem("退出[E]",sl6); Exit.addActionListener(itemListener); file.add(Exit); MenuItem shipin = new MenuItem("视频聊天"); shipin.addActionListener(itemListener); chat.add(shipin); MenuItem yuyin = new MenuItem("语音聊天"); yuyin.addActionListener(itemListener); chat.add(yuyin); MenuItem music = new MenuItem("音乐"); music.addActionListener(itemListener); disport.add(music); MenuItem film = new MenuItem("电影"); film.addActionListener(itemListener); disport.add(film); MenuItem game = new MenuItem("游戏"); game.addActionListener(itemListener); disport.add(game); MenuItem sharefiles = new MenuItem("共享文件"); sharefiles.addActionListener(itemListener); yingyong.add(sharefiles); MenuItem distancehelp = new MenuItem("远程协助"); distancehelp.addActionListener(itemListener); yingyong.add(distancehelp); MenuItem view = new MenuItem("视图"); view.addActionListener(itemListener); toolkits.add(view); MenuItem addfriend = new MenuItem("添加好友"); addfriend.addActionListener(itemListener); toolkits.add(addfriend); MenuItem about = new MenuItem("关于"); about.addActionListener(itemListener); help.add(about); mb.add(file); mb.add(chat); mb.add(disport); mb.add(yingyong); mb.add(toolkits); mb.add(help); this.setMenuBar(mb); //con = this.getContentPane(); this.setLayout(new BorderLayout()); this.setSize(480,500); String s = this.IPAdd.getText(); this.setTitle("与"+s+"聊天中"); this.setResizable(false); this.setBackground(Color.orange); label1.setFont(new Font("宋体",Font.PLAIN,12)); label1.setForeground(new Color(0,0,192)); label1.setBounds(8,28,216,16); input.setBackground(new Color(128,255,255)); input.setFont(new Font("",Font.BOLD,15)); input.setForeground(Color.magenta); input.setBounds(8,44,248,120); output.setBackground(new Color(128,255,255)); output.setFont(new Font("",Font.PLAIN,12)); output.setForeground(Color.magenta); output.setBounds(264,44,248,120); output.setEditable(false); send.setFont(new Font("新宋题",Font.PLAIN,12)); send.setLocation(136,188); send.setSize(120,22); clear.setFont(new Font("新宋体",Font.PLAIN,12)); clear.setLocation(392,188); clear.setSize(120,22); label3.setFont(new Font("宋体",Font.PLAIN,12)); label3.setForeground(new Color(0,0,192)); label3.setBounds(8,172,160,16); IPAdd.setFont(new Font("新宋体",Font.PLAIN,12)); IPAdd.setLocation(8,190); IPAdd.setSize(120,19); Panel p1 = new Panel(); p1.setLayout(new GridLayout(2,1)); p1.add(this.label1); p1.add(this.input); add(p1,BorderLayout.CENTER); Panel p2 = new Panel(); p2.setLayout(new GridLayout(1,1)); p2.add(this.output); add(p2,BorderLayout.NORTH); Panel p3 = new Panel(); p3.setLayout(new FlowLayout()); p3.add(this.label3); p3.add(this.IPAdd); p3.add(this.send); p3.add(this.clear); add(p3,BorderLayout.SOUTH); addWindowListener(new myWindowListener(this)); send.addActionListener(this); clear.addActionListener(this); show(); waitForData(); } public void actionPerformed(ActionEvent e){ if(e.getSource()==send){ sendData(); } else if(e.getSource()==clear) output.setText(""); } public static void main(String[] args){ //主函数 new MyselfChat(); } void sendData(){ try{ String msg=input.getText(); if(msg.equals("")) return; input.setText(""); String ad = IPAdd.getText(); //获取用户输入的IP地址 InetAddress tea = InetAddress.getLocalHost(); //获取本机的IP地址 String asd = tea.getHostAddress(); output.append("["+asd+"]:("+time.get(GregorianCalendar.YEAR) +"-"+time.get(GregorianCalendar.MONTH)+ "-"+time.get(GregorianCalendar.DATE)+"" +time.get(GregorianCalendar.HOUR)+":" +time.get(GregorianCalendar.MINUTE)+":" +time.get(GregorianCalendar.SECOND)+")"+"\n"+msg+"\n"); msg="From ["+asd+"]:("+time.get(GregorianCalendar.YEAR) +"-"+time.get(GregorianCalendar.MONTH)+ "-"+time.get(GregorianCalendar.DATE)+"" +time.get(GregorianCalendar.HOUR)+":" +time.get(GregorianCalendar.MINUTE)+":" +time.get(GregorianCalendar.SECOND)+") \n"+msg ; InetAddress address=InetAddress.getByName(ad); int len = msg.length(); byte[] message=new byte[len]; msg.getBytes(0,len,message,0); DatagramPacket packet=new DatagramPacket(message,len,address,9999); DatagramSocket socket=new DatagramSocket( ); socket.send(packet); }catch(Exception e){} } void waitForData(){ try{ byte[]