findfriend2.java

JAVA的高级应用以及网络编程

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.border.*;
import java.util.Vector;
import java.net.*;
import java.io.*; 

public class FindFriend2 extends JFrame {//查找好友类
	JLabel jLabel1 = new JLabel();
	JButton find2 = new JButton();
	JButton jButton1 = new JButton();
	JButton jButton2 = new JButton();
	JButton jButton3 = new JButton();
	JList list2;
///////////////////以下是好友的呢称，性别等信息
	Vector nickname=new Vector();
	Vector sex=new Vector();
	Vector place=new Vector();
	Vector jicq=new Vector();
	Vector ip=new Vector();
	Vector pic=new Vector();
	Vector status=new Vector();
	Vector emails=new Vector();
	Vector infos=new Vector();
//以下临时保存好友的呢称，性别等信息
	Vector tmpjicq=new Vector();//jicqid
	Vector tmpname=new Vector();//jicqname
	Vector tmpip=new Vector();//ip
	Vector tmppic=new Vector();//pic info
	Vector tmpstatus=new Vector();//status
	Vector tmpemail=new Vector();
	Vector tmpinfo=new Vector();
//以下创建网络相关变量
	Socket socket;
	BufferedReader in;
    PrintWriter out;
    int myid;
    String serverhost;
    int servport;
	DatagramPacket sendPacket;
	DatagramSocket sendSocket;
    int sendPort=5000;
//////////////////
	JPopupMenu findmenu = new JPopupMenu();
	JMenuItem look = new JMenuItem();
	JMenuItem add = new JMenuItem();
	//查找好友类构造函数
	public FindFriend2(int whoami,String host,int port) {
		enableEvents(AWTEvent.WINDOW_EVENT_MASK);
		try {
		serverhost=host;
		servport=port;
        myid=whoami;
		jbInit();
		}
		catch(Exception e) {
		e.printStackTrace();
		}
		//以下与服务器连接
		try{
			socket=new Socket(InetAddress.getByName(serverhost),servport);
			in=new BufferedReader(new InputStreamReader(socket.getInputStream()));
			out=new PrintWriter(new BufferedWriter(
                              new OutputStreamWriter(socket.getOutputStream())),true);
			sendSocket=new DatagramSocket();
		}catch(IOException e1){}
	}//构造器结束
	
	//以下是程序界面
	private void jbInit() throws Exception {
    jLabel1.setText("下面是在线的朋友");
    jLabel1.setBounds(new Rectangle(11, 11, 211, 18));
    this.getContentPane().setLayout(new FlowLayout());
    find2.setText("查找");
    find2.setBounds(new Rectangle(8, 289, 79, 29));
    find2.addMouseListener(new java.awt.event.MouseAdapter() {
		public void mouseClicked(MouseEvent e) {
			find2_mouseClicked(e);
      }
    });
    jButton1.setText("next");
    jButton1.setBounds(new Rectangle(110, 288, 79, 29));
    jButton2.setText("up");
    jButton2.setBounds(new Rectangle(211, 285, 79, 29));
    jButton3.setText("cancel");
    jButton3.setBounds(new Rectangle(317, 289, 79, 29));
   // nickname=new Vector();
    // sex=new Vector();
    // place=new Vector();
    ListModel model=new FindListModel(nickname,sex,place);//列表模型
    ListCellRenderer renderer=new FindListCellRenderer();
    list2=new JList(model);
    list2.setSize(200,200);
    list2.setBackground(new Color(255, 255, 210));
    list2.setAlignmentX((float) 1.0);
    list2.setAlignmentY((float) 1.0);
    list2.setCellRenderer(renderer);
    list2.setVisibleRowCount(7);
    list2.addMouseListener(new java.awt.event.MouseAdapter() {
		public void mousePressed(MouseEvent e) {
			list2_mousePressed(e);
      }
    });
    look.setText("查看资料");
    add.setText("加为好友");
    add.addMouseListener(new java.awt.event.MouseAdapter() {
		public void mousePressed(MouseEvent e) {
			add_mousePressed(e);
      }
    });
    this.getContentPane().add(jLabel1, null);
	this.getContentPane().add(new JScrollPane(list2));
    this.getContentPane().add(find2, null);
    this.getContentPane().add(jButton1, null);
    this.getContentPane().add(jButton2, null);
    this.getContentPane().add(jButton3, null);
    findmenu.add(look);
    findmenu.add(add);
	}//jbInit结束
	
	//以下是关闭本窗口
	protected void processWindowEvent(WindowEvent e) {
		super.processWindowEvent(e);
		if (e.getID() == WindowEvent.WINDOW_CLOSING) {
			//this.dispose();
			this.hide();
		}
	}
 
//以下向服务器发送查找好友请求
	void find2_mouseClicked(MouseEvent e) {
		out.println("find");
		DefaultListModel mm=(DefaultListModel)list2.getModel();
		/////////////////find friend info
		try{
			String s=" ";
			//从服务器读取好友信息
			do{  s=in.readLine();
				if(s.equals("over")) break;
				nickname.add(s);
				sex.add(in.readLine());
				place.add(in.readLine());
				ip.add(in.readLine());
				emails.add(in.readLine());
				infos.add(in.readLine());
			}while(!s.equals("over"));
			/////////////end  find  info
			//read their jicqno
			int theirjicq,picinfo,sta;
			for(int x=0;x<nickname.size();x++){
				theirjicq=Integer.parseInt(in.readLine());
				//System.out.println(theirjicq);
				jicq.add(new Integer(theirjicq));
				picinfo=Integer.parseInt(in.readLine());
				pic.add(new Integer(picinfo));
				sta=Integer.parseInt(in.readLine());
				//System.out.println(sta);
				status.add(new Integer(sta));
				//System.out.println(jicq.get(x));
			}
			//在列表中显示
			for(int i=0;i<nickname.size();i++){
				mm.addElement(new Object[]{nickname.get(i),sex.get(i),place.get(i)});
			}//for

		}catch(IOException e4){System.out.println("false");}
	}//find2_mouseClicked结束
	
	//显示查找好友菜单
	void list2_mousePressed(MouseEvent e) {
		findmenu.show(this,e.getX()+20,e.getY()+50);
	}
	
	/////////////add frined
	//以下将添加的好友存储在临时矢量
	void add_mousePressed(MouseEvent e) {
		//add friend to database
		int dd;
		dd=list2.getSelectedIndex();
		tmpjicq.add(jicq.get(dd));
		tmpname.add(nickname.get(dd));
		tmpip.add(ip.get(dd));
		tmppic.add(pic.get(dd));
		tmpstatus.add(status.get(dd));
		tmpemail.add(emails.get(dd));
		tmpinfo.add(infos.get(dd));
		//以下向服务器发送添加好友请求
		out.println("addfriend");
		out.println(jicq.get(dd));
		out.println(myid);
		try{ //以下告诉客户将其加为好友
			String whoips;
			String  s="oneaddyou"+myid;
			s.trim();
			System.out.println(s);
			byte[] data=s.getBytes();
			whoips=ip.get(dd).toString().trim();
			sendPacket=new
			DatagramPacket(data,s.length(),InetAddress.getByName(whoips),sendPort);
			sendSocket.send(sendPacket);
		} catch(IOException e2){e2.printStackTrace();}
		//}catch(IOException df){};
	}/////////////add friend end

}//FindFriend2类定义结束