JAVA网络通信系统设计（源代码）

package com.jicq; import java.awt.AWTEvent; import java.awt.Color; import java.awt.Container; import java.awt.Dimension; import java.awt.FileDialog; import java.awt.FlowLayout; import java.awt.Rectangle; import java.awt.SystemColor; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.MouseEvent; import java.awt.event.WindowEvent; import java.io.BufferedReader; import java.io.BufferedWriter; import java.io.IOException; import java.io.InputStreamReader; import java.io.OutputStreamWriter; import java.io.PrintWriter; import java.net.DatagramPacket; import java.net.DatagramSocket; import java.net.InetAddress; import java.net.Socket; import java.net.SocketException; import java.util.Vector; import javax.swing.DefaultListModel; import javax.swing.ImageIcon; import javax.swing.JButton; import javax.swing.JDialog; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JList; import javax.swing.JMenu; import javax.swing.JMenuBar; import javax.swing.JMenuItem; import javax.swing.JOptionPane; import javax.swing.JPanel; import javax.swing.JPopupMenu; import javax.swing.JScrollPane; import javax.swing.JTextArea; import javax.swing.JTextField; import javax.swing.ListCellRenderer; import javax.swing.ListModel; //以下是主程序 public class MainWin extends JFrame implements Runnable { JPanel contentPane; String filepath; String filename; String file; //以下是好友基本信息变量，比如呢称，ip地址等 Vector friendnames = new Vector(); int friendnum;//friend number private String[] picsonline = new String[] { "1.jpg", "3.jpg", "5.jpg", "7.jpg" }; private String[] picsoffline = new String[] { "2.jpg", "4.jpg", "6.jpg", "8.jpg" }; Vector friendjicq = new Vector(); Vector udpport = new Vector(); Vector friendips = new Vector(); Vector friendemail = new Vector(); Vector friendsex = new Vector(); Vector friendinfo = new Vector(); Vector picno = new Vector(); Vector status = new Vector(); //以下是临时变量保存临时的好友 Vector tempname = new Vector(); Vector tempjicq = new Vector(); Vector tempip = new Vector(); Vector temppic = new Vector(); Vector tempstatus = new Vector(); Vector whoaddmesip = new Vector();//get whoaddme as friend Vector tempemail = new Vector(); Vector tempinfo = new Vector(); int index;//get list index int index3;//get firiend onlineinfo int index4;//get message from info boolean fromunknow = false; //以下建立窗口类 FindFriend2 findf; JDialog hello = new JDialog(); JDialog OneAddyou = new JDialog(); JDialog DirectAdd = new JDialog(); int tempgetjicq;//get the tempgetjicq /////////////////////////////friend info //以下是程序界面的变量 ImageIcon icon1 = new ImageIcon("cab_small.gif"); ImageIcon icon6 = new ImageIcon("sun_small.gif"); ImageIcon icon3 = new ImageIcon("17.jpg"); JButton jButton1 = new JButton(); JDialog about = new JDialog(); JDialog senddata = new JDialog(); JDialog getdata = new JDialog(); JButton ok = new JButton(); JPopupMenu jPopupMenu1 = new JPopupMenu(); JMenuItem sendmessage = new JMenuItem(); JMenuItem getmessage = new JMenuItem(); JMenuItem sendfile = new JMenuItem(); JMenuItem lookinfo = new JMenuItem(); JMenuItem chatrecord = new JMenuItem(); JLabel name = new JLabel(); JTextField nametext = new JTextField(); JLabel icq = new JLabel(); JTextField icqno = new JTextField(); JButton send = new JButton(); JButton cancel = new JButton(); JTextArea sendtext = new JTextArea(); JList list; JLabel jLabel2 = new JLabel(); FlowLayout flowLayout1 = new FlowLayout(); JMenuBar mb = new JMenuBar(); JMenu filemenu = new JMenu("好友操作"); JMenuItem exititem = new JMenuItem("Exit"); JMenuItem find = new JMenuItem("查找好友"); JMenuItem direct = new JMenuItem("直接添加好友"); JMenuItem update = new JMenuItem("更新好友列表"); JMenuItem online = new JMenuItem("上线通知"); JMenuItem myinfo = new JMenuItem("陌生人"); //以下是网络相关变量 Socket socket; BufferedReader in; PrintWriter out; DatagramPacket sendPacket, receivePacket; DatagramSocket sendSocket, receiveSocket; int udpPORT = 5001; int sendPort = 5000; String server; int serverport; byte array[] = new byte[512]; Thread thread; int myjicq; String received; //以下是程序界面的变量 JLabel jLabel3 = new JLabel(); JTextField getfromname = new JTextField(); JLabel jLabel4 = new JLabel(); JTextField getfromjicq = new JTextField(); JTextArea getinfo = new JTextArea(); JButton getok = new JButton(); String theip; JMenuItem delfriend = new JMenuItem(); JLabel jLabel1 = new JLabel(); JTextField helloname = new JTextField(); JLabel jLabel5 = new JLabel(); JTextField hellojicq = new JTextField(); JLabel jLabel6 = new JLabel(); JTextField helloemail = new JTextField(); JLabel jLabel7 = new JLabel(); JTextArea helloinfo = new JTextArea(); JButton jButton3 = new JButton(); JButton hellook = new JButton(); JLabel jLabel8 = new JLabel(); JLabel jLabel9 = new JLabel(); JLabel jLabel10 = new JLabel(); JLabel oneaddme = new JLabel(); JButton addit = new JButton(); JButton iknow = new JButton(); JLabel jLabel11 = new JLabel(); JLabel jLabel12 = new JLabel(); JLabel jLabel13 = new JLabel(); JTextField hellosex = new JTextField(); JTextField friendid = new JTextField(); JButton directaddok = new JButton(); /* 以下该函数连接服务器 */ public void ConnectServer(int myid) { try { socket = new Socket(InetAddress.getByName(server), serverport); in = new BufferedReader(new InputStreamReader(socket .getInputStream())); out = new PrintWriter(new BufferedWriter(new OutputStreamWriter( socket.getOutputStream())), true); //以下读取好友信息 out.println("friend"); out.println(myid); friendnum = Integer.parseInt(in.readLine()); String friendname = " "; String friendjicqno, friendip, friendstatus, picinfo, email, sex, infos; do { friendname = in.readLine(); if (friendname.equals("over")) break; friendnames.add(friendname); friendjicqno = in.readLine(); friendjicq.add(new Integer(friendjicqno)); friendip = in.readLine(); friendips.add(friendip); friendstatus = in.readLine(); status.add(friendstatus); picinfo = in.readLine(); picno.add(new Integer(picinfo)); email = in.readLine(); friendemail.add(email); sex = in.readLine(); friendsex.add(sex); infos = in.readLine(); friendinfo.add(infos); } while (!friendname.equals("over")); } catch (IOException e1) { System.out.println("false"); } //以下在列表中显示好友 DefaultListModel mm = (DefaultListModel) list.getModel(); int picid; for (int p = 0; p < friendnames.size(); p++) { picid = Integer.parseInt(picno.get(p).toString()); if (status.get(p).equals("1")) { mm.addElement(new Object[] { friendnames.get(p), new ImageIcon(picsonline[picid]) }); } else { mm.addElement(new Object[] { friendnames.get(p), new ImageIcon(picsoffline[picid]) }); } }//for }//connectto server //以下函数无限监听好友的消息 public void run() { while (true) { try { for (int x = 0; x < 512; x++) array[x] = ' '; //创建数据报 receivePacket = new DatagramPacket(array, array.length); receiveSocket.receive(receivePacket); byte[] data = receivePacket.getData(); String infofromip = receivePacket.getAddress().getHostAddress() .toString().trim(); index3 = 0; received = new String(data, 0, data.length); received.trim(); String tempstr; int tx; //