一.效果
1.1 里面有三個java文件
BorderInit.java //抽出的一個方法定義容器
ReceiveImages.java //用於接收服務器端發送的信息
SendScreen.java //用於獲取當前平台的頁面，通過Socket發送
1.2啟動順序：SendScreen.java ------》ReceiveImages.java
（1）啟動SendScreen.java
（2）啟動ReceiveImages.java
（3）點擊SendScreen.java生成的容器中的開始直播
二.demo代碼
（1）BorderInit.java
package demo;
import java.awt.Frame;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import javax.swing.JFrame;
import javax.swing.JLabel;
//Client端窗口輔助類，專門用來顯示從教師端收到的屏幕信息
class BorderInit extends JFrame{
private static final long serialVersionUID = 1L;
public JLabel jlbImg;
private boolean flag;
public boolean getFlag(){
return this.flag;
}
public BorderInit(){
this.flag=true;
this.jlbImg = new JLabel();
this.setTitle("遠程監控IP:"+"127.0.0.1");
this.setSize(800, 600);
this.setAlwaysOnTop(false); // true顯示窗口始終在最前面
this.add(jlbImg);
this.setLocationRelativeTo(null);//如果組件當前未顯示或者 為 null，則此窗口將置於屏幕的中央。
this.setExtendedState(Frame.MAXIMIZED_BOTH);//Swing中設置窗口最大化
this.setDefaultCloseOperation(DISPOSE_ON_CLOSE);//程序退出時關閉
this.setVisible(true);//顯式
this.validate();
//窗口關閉事件
this.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
flag=false;
BorderInit.this.dispose();
System.out.println("窗體關閉");
System.gc();
}
});
}
}
（2）ReceiveImages.java
package demo;
import java.awt.Image;
import java.io.*;
import java.net.Socket;
import java.util.concurrent.TimeUnit;
import java.util.zip.ZipInputStream;
import javax.imageio.ImageIO;
import javax.swing.ImageIcon;
/*
* @KnuthChao 20150625
* 用於接收服務器端發送的信息，沒有寫多線程和鼠標的錄制，后期有空 *會加上去；
*/
public class ReceiveImages extends Thread{
public BorderInit frame ;
public Socket socket;
public String IP;
public static void main(String[] args){
new ReceiveImages(new BorderInit(),"127.0.0.1").start();
}
//接收圖片
public ReceiveImages(BorderInit frame,String IP)
{
this.frame = frame;
this.IP=IP;
}
//實現run方法
public void run() {
while(frame.getFlag()){
try {
socket = new Socket(IP,12122);
DataInputStream ImgInput = new DataInputStream(socket.getInputStream());
System.out.println("ImgInput:"+ImgInput);
ZipInputStream imgZip = new ZipInputStream(ImgInput);//解析zip文件
imgZip.getNextEntry(); //到Zip文件流的開始處
Image img = ImageIO.read(imgZip); //按照字節讀取Zip圖片流里面的圖片
frame.jlbImg.setIcon(new ImageIcon(img));
System.out.println("連接第"+(System.currentTimeMillis()/1000)%24%60+"秒");
frame.validate();
TimeUnit.MILLISECONDS.sleep(1);// 接收圖片間隔時間
imgZip.close();
} catch (IOException e) {
System.out.println("連接斷開");
} catch (InterruptedException e) {
System.out.println("連接斷開");
}finally{
try {
socket.close();
} catch (IOException e) {}
}
}
}
}
（3）SendScreen.java
package demo;
import javax.swing.DefaultListModel;
import java.awt.Dimension;
import java.awt.Rectangle;
import java.awt.Robot;
import java.awt.Toolkit;
import java.awt.image.BufferedImage;
import java.io.DataOutputStream;
import java.io.IOException;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.imageio.ImageIO;
/**
*
* @author Knuth
*/
public class SendScreen extends javax.swing.JFrame {
public static int SERVERPORT=12122;
private ServerSocket serverSocket;
/**
* Robot 的主要目的是便於 Java 平台實現自動測試
* 使用該類生成輸入事件與將事件發送到 AWT 事件隊列或 AWT 組件的區別在於：事件是在平台的本機輸入隊列中生成的
*/
private Robot robot;
public Dimension screen;
public Rectangle rect ;
private Socket socket;
//創建dlmsend列表
DefaultListModel dlmsend = new DefaultListModel();
public SendScreen(int SERVERPORT) {
initComponents();
jList1.setModel(dlmsend);
try {
serverSocket = new ServerSocket(SERVERPORT);
//設置超時時間
serverSocket.setSoTimeout(864000);
robot = new Robot();
} catch (Exception e) {
e.printStackTrace();
}
screen = Toolkit.getDefaultToolkit().getScreenSize(); //獲取主屏幕的大小
rect = new Rectangle(screen); //構造屏幕大小的矩形
}
private void initComponents() {
jScrollPane1 = new javax.swing.JScrollPane(); //帶滾動條的控制面板
jList1 = new javax.swing.JList();
jButton1 = new javax.swing.JButton();
jButton2 = new javax.swing.JButton();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);//退出時關閉
jScrollPane1.setViewportView(jList1);
jButton1.setText("開始廣播");
jButton1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton1ActionPerformed(evt);
}
});
jButton2.setText("結束廣播");
jButton2.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton2ActionPerformed(evt);
}
});
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(28, 28, 28)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 389, javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap(24, Short.MAX_VALUE))
.addGroup(layout.createSequentialGroup()
.addComponent(jButton1)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(jButton2)
.addGap(40, 40, 40))))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(24, 24, 24)
.addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 185, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(62, 62, 62)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jButton1)
.addComponent(jButton2))
.addContainerGap(61, Short.MAX_VALUE))
);
pack();
}// </editor-fold>
private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
dlmsend.addElement("教師端開始廣播！");
Thread t = new reThread();
t.start();
}
private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {
try {
// TODO add your handling code here:
dlmsend.addElement("廣播結束");
socket.close();
Thread t = new reThread();
//t.stop();//強行停止線程 已被廢棄掉該方法
t.interrupt();//方法不能直接停止線程,只是給線程打上一個需要停止的標記,具體什么時候停 不確定
} catch (IOException ex) {
Logger.getLogger(SendScreen.class.getName()).log(Level.SEVERE, null, ex);
}
}
class reThread extends Thread {
public void run(){
while(true)
{
try{
//接收一個套接字中已建立的連接
socket = serverSocket.accept();
dlmsend.addElement("學生端口已經連接");
ZipOutputStream zip = new ZipOutputStream(new DataOutputStream(socket.getOutputStream()));
zip.setLevel(0); //設置壓縮級別,java共8個還是11個壓縮級別？
BufferedImage img = robot.createScreenCapture(rect);
zip.putNextEntry(new ZipEntry("test.jpg"));
ImageIO.write(img,"jpg",zip);
if(zip!=null)zip.close();
dlmsend.addElement("Client正在實時連接");
dlmsend.addElement("連接第"+(System.currentTimeMillis()/1000)%24%60+"秒");
} catch (IOException ioe) {
dlmsend.addElement("連接斷開");
} finally {
if (socket != null) {
try {
socket.close();
} catch (IOException e) {e.printStackTrace();}
}
}
}
}
}
public static void main(String args[]) {
try {
//獲得系統中可用bai外觀
for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
if ("Nimbus".equals(info.getName())) {
//設置baiUI
javax.swing.UIManager.setLookAndFeel(info.getClassName());
break;
}
}
} catch (ClassNotFoundException ex) {
java.util.logging.Logger.getLogger(SendScreen.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(SendScreen.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(SendScreen.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(SendScreen.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
}
/* Create and display the form */
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new SendScreen(SERVERPORT).setVisible(true);
}
});
}
// Variables declaration - do not modify
private javax.swing.JButton jButton1;
private javax.swing.JButton jButton2;
private javax.swing.JList jList1;
private javax.swing.JScrollPane jScrollPane1;
}
代碼我測試沒啥問題，自己跑的話需要自己更具項目本身做調整