Java在线视频聊天
  import java.awt.*;
  import java.awt.p_w_picpath.*;
  import java.awt.event.*;
  import java.util.*;
  import java.io.*;
  import java.net.*;
  import javax.p_w_picpathio.*;
  import javax.swing.*;
  import javax.media.*;
  import javax.media.protocol.*;
  import javax.media.control.*;
  import javax.media.util.*;
  import javax.media.format.*;
  import com.sun.p_w_picpath.codec.jpeg.*;
  class VAplay extends JFrame implements Runnable
  {
  //定义视频图像播放器
  private static Player player = null;
  //定义音频播放器
  private static Player player2 = null;
  //获取视频设备
  private CaptureDeviceInfo device = null;
  //获取音频设备
  private CaptureDeviceInfo device2 = null;
  //媒体定位器
  private MediaLocator locator = null;
  private Image p_w_picpath;
  private Buffer buffer = null;
  private BufferToImage b2i = null;
  //设置摄像头驱动类型
  String str = "vfw:Microsoft WDM Image Capture (Win32):0";
  //定义播放组件变量
  Component comV,comVC,comA;
  //定义面板
  JPanel p1,p2,p3,p4;
  JLabel label=new JLabel("对方IP:");
  //初始时,在接收图像窗口显示一幅静态图片
  JLabel label2=new JLabel(new ImageIcon("p_w_picpath//load.gif"));
  //定义二个线程,用于接收数据和发送数据
  Thread thread1,thread2;
  VAplay()
  {
  super("视频传输");
  setBounds(150,100,500,500);
  p1=new JPanel(new GridLayout(1,2));
  p2=new JPanel(new GridLayout(2,1));
  p3=new JPanel(new BorderLayout());
  p4=new JPanel(new BorderLayout());
  //加载文本数据传输类
  p1.add(new TxtChat());
  p1.add(p2);
  p2.add(p3);
  p2.add(p4);
  p3.add("North",new JLabel("Java视频图像传输"));
  p3.add(label2,"Center");
  add(label,"North");
  add(p1,"Center");
  try
  {
  //在本地播放视频
  jbInit();
  //在本地播放音频
  speaker();
  }
  catch(Exception e)
  {
  e.printStackTrace();
  }
  thread1=new Thread(this);
  thread2=new Thread(this);
  //负责接收对方数据
  thread1.start();
  //负责向对方发送数据
  thread2.start();
  addWindowListener(new WindowAdapter()
  {
  public void windowClosing(WindowEvent e)
  {
  System.exit(0);
  }
  });
  setVisible(true);
  validate();
  }
  //在本地播放视频
  private void jbInit() throws Exception
  {
  //初始化设备,真人视频,str为设备驱动
  device = CaptureDeviceManager.getDevice(str);
  //确定所需的协议和媒体资源的位置
  locator = device.getLocator();
  try
  {
  //调用sethint后Manager会尽力用一个能和轻量级组件混合使用的Renderer来创建播放器
  Manager.setHint(Manager.LIGHTWEIGHT_RENDERER,new Boolean(true));
  //通过管理器创建播放线程使player达到Realized状态
  player = Manager.createRealizedPlayer(locator);
  player.start();
  if((comV = player.getVisualComponent()) != null)
  //player.getVisualComponent()是一个播放视频媒体组件。
  {
  p4.add(comV,"Center");
  }
  if((comVC=player.getControlPanelComponent())!=null)
  //player.getControlPanelComponent()是显示时间的组件
  {
  p4.add(comVC,"South");
  }
  }
  catch (Exception e)
  {
  e.printStackTrace();
  }
  setBounds(200,100,600, 550);
  setVisible(true);
  int new_w= p4.getWidth(); //输出的图像宽度
  int new_h= p4.getHeight(); //输出的图像高度
  //MediaTracker类跟踪一个Image对象的装载,完成图像加载
  MediaTracker mt = new MediaTracker(this.p4);
  try
  {
  mt.addImage(p_w_picpath, 0);//装载图像
  mt.waitForID(0);//等待图像全部装载
  }
  catch (Exception e)
  {
  e.printStackTrace();
  }
  //将图像信息写入缓冲区
  BufferedImage buffImg = new BufferedImage(new_w, new_h,BufferedImage.TYPE_INT_RGB);
  Graphics g = buffImg.createGraphics();
  g.drawImage(p_w_picpath, 0, 0, new_w, new_h, this.p4);
  g.dispose();
  }
  //在本地播放音频
  private void speaker() throws Exception
  {
  Vector deviceList = CaptureDeviceManager.getDeviceList(new
  AudioFormat(AudioFormat.LINEAR,44100,16,2));
  if(deviceList.size()>0)
  {
  device2 = (CaptureDeviceInfo)deviceList.firstElement();
  }
  else
  {
  System.out.println("找不到音频设备!");
  }
  try
  {
  player2 = Manager.createRealizedPlayer(device2.getLocator());
  player2.start();
  if((comA = player2.getControlPanelComponent())!=null)
  {
  p3.add(comA,"South");
  }
  }
  catch(Exception e)
  {
  e.printStackTrace();
  }
  }
  //线程,接收或发送视频图像数据
  public void run()
  {
  DatagramPacket pack=null;
  DatagramSocket maildata=null;
  byte data[]=new byte[320*240];
  try
  {
  //定义数据包
  pack=new DatagramPacket(data,data.length);
  //定义数据报接收包
  maildata=new DatagramSocket(999);
  }
  catch(Exception e){ }
  while(true)
  {
  if(Thread.currentThread()==thread1)
  {
  if(maildata==null)
  {
  break;
  }
  else
  {
  try
  {
  //接收
  maildata.receive(pack);
  ByteArrayInputStream input=new ByteArrayInputStream(data);
  Image message=ImageIO.read(input);
  //在接收图像窗口显示视频图像
  label2.setIcon(new ImageIcon(message));
  label.setText("对方IP:"+pack.getAddress()+
  " 端口:"+pack.getPort());
  }
  catch(Exception e)
  {
  System.out.println("接收图像数据失败!");
  }
  }
  }
  else if(Thread.currentThread()==thread2)
  {
  try
  {
  //捕获要在播放窗口显示的图象帧
  FrameGrabbingControl fgc = (FrameGrabbingControl) player.getControl(
  "javax.media.control.FrameGrabbingControl");
  // 获取当前祯并存入Buffer类
  buffer = fgc.grabFrame();
  b2i = new BufferToImage( (VideoFormat) buffer.getFormat());
  p_w_picpath = b2i.createImage(buffer); //转化为图像
  //创建p_w_picpath图像对象大小的图像缓冲区
  BufferedImage bi = (BufferedImage) createImage(p_w_picpath.getWidth(null),
  p_w_picpath.getHeight(null));
  //根据BufferedImage对象创建Graphics2D对象
  Graphics2D g2 = bi.createGraphics();
  g2.drawImage(p_w_picpath, null, null);
  ByteArrayOutputStream output=new ByteArrayOutputStream();
  //转换成JPEG图像格式
  JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder( output );
  JPEGEncodeParam jpeg = encoder.getDefaultJPEGEncodeParam(bi);
  jpeg.setQuality(0.5f,false);
  encoder.setJPEGEncodeParam(jpeg);
  encoder.encode(bi);
  output.close();
  InetAddress address=InetAddress.getByName("localhost");
  DatagramPacket datapack1=new DatagramPacket(output.toByteArray(),output.size(),教育视频,
  address,555);
  DatagramSocket maildata1=new DatagramSocket();
  maildata1.send(datapack1);
  Thread.sleep(400);
  }
  catch(Exception e)
  {
  System.out.println("视频发送失败!");
  }
  }
  }
  }
  public static void main(String args[])
  {
  new VAplay();
  }
  }
  class TxtChat extends JPanel implements ActionListener,Runnable
  {
  JPanel p1,p2,p3,p4;
  JLabel jpic;
  JTextArea txt1,txt2;
  JButton btn1,btn2;
  JScrollPane scroll,scroll2;
  Thread thread;
  boolean boo1=false,boo2=false;
  TxtChat()
  {
  setLayout(new BorderLayout());
  txt1=new JTextArea();
  txt2=new JTextArea();
  p1=new JPanel(new GridLayout(2,1));
  p2=new JPanel();
  p3=new JPanel(new BorderLayout());
  jpic=new JLabel(new ImageIcon("p_w_picpath//upload.gif"));
  btn1=new JButton("电子文档");
  btn2=new JButton("发送信息");
  scroll=new JScrollPane(txt1,JScrollPane.VERTICAL_SCROLLBAR_ALWAYS,
  JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
  scroll2=new JScrollPane(txt2,JScrollPane.VERTICAL_SCROLLBAR_ALWAYS,
  JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
  p1.add(scroll);
  p1.add(p3);
  p2.add(btn1);
  p2.add(btn2);
  p3.add(jpic,"North");
  p3.add(scroll2,"Center");
  add(p1,"Center");
  add(p2,"South");
  setVisible(true);
  Font f=new Font("",Font.PLAIN,18);
  txt1.setFont(f);
  txt1.setForeground(Color.red);
  txt2.setFont(f);
  txt2.setForeground(Color.blue);
  btn1.setBackground(Color.cyan);
  btn2.setBackground(Color.yellow);
  btn1.addActionListener(this);
  btn2.addActionListener(this);
  thread=new Thread(this);
  thread.start();
  }
  public void actionPerformed(ActionEvent e)
  {
  if(e.getSource()==btn2)
  {
  byte buffer[]=txt2.getText().trim().getBytes();
  try
  {
  InetAddress address=InetAddress.getByName("localhost");
  DatagramPacket data_pack=new DatagramPacket(buffer,buffer.length,address,888);
  DatagramSocket mail_data=new DatagramSocket();
  txt1.append("我说:"+txt2.getText()+'\n');
  mail_data.send(data_pack);
  txt2.setText("");
  }
  catch(Exception e1)
  {
  System.out.println("聊天信息发送失败!");
  }
  }
  }
  public void run()
  {
  DatagramPacket pack=null;
  DatagramSocket mail_data=null;
  byte data[]=new byte[8192];
  try
  {
  pack=new DatagramPacket(data,data.length);
  mail_data=new DatagramSocket(666);
  }
  catch(Exception e){ }
  while(true)
  {
  if(Thread.currentThread()==thread)
  {
  if(mail_data==null)
  {break;}
  else
  {
  try
  {
  mail_data.receive(pack);
  int length=pack.getLength();
  String message=new String(pack.getData(),0,length);
  txt1.append("某某说:"+message+'\n');
  }
  catch(Exception e)
  {
  System.out.println("接收数据失败!");
  }
  }
  }
  }// while end
  } //run() end
  }