wnetwscreenrecorder.java

java实现的截图

package com.wnetw.project.media;
 
import java.awt.*;
import java.awt.image.*;
import com.sun.image.codec.jpeg.*;
import java.io.*;

 
public class WnetWScreenRecorder extends Thread{

  private Dimension screenSize;
  private Rectangle rectangle;
  private Robot robot;
  private long i = 0;
  private JPEGImageEncoder encoder;
 
  public WnetWScreenRecorder() {
    screenSize = Toolkit.getDefaultToolkit().getScreenSize();
    rectangle = new Rectangle(screenSize);//可以指定捕获屏幕区域
    try{
      robot = new Robot();
    }catch(Exception e){
      e.printStackTrace();
      System.out.println(e);
    }
  }
 
  public static void main(String[] args) {
    new WnetWScreenRecorder().start();
  }
 
  public void run(){
    FileOutputStream fos = null;
    while (true){
      try{
        BufferedImage image = robot.createScreenCapture(rectangle);//捕获制定屏幕矩形区域
        fos = new FileOutputStream("C:\\records\\" + i + ".jpg");
        JPEGCodec.createJPEGEncoder(fos).encode(image);//图像编码成JPEG
        fos.close();
        i = i + 1;
        Thread.sleep(40);//每秒25帧
      }catch(Exception e){
        e.printStackTrace();
        System.out.println(e);
        try{
          if (fos != null)fos.close();
        }catch(Exception e1){}
      }
    }
  }
}