[Java] java使用电脑摄像头识别二维码

package com.pengo.capture;
 
import javax.swing.jframe;
import java.awt.borderlayout;
import java.awt.dimension;
import java.awt.graphics2d;
import java.awt.image.bufferedimage;
import java.io.inputstream;
import javax.media.medialocator;
import javax.swing.jpanel;
import javazoom.jl.player.player;
import com.google.zxing.binarybitmap;
import com.google.zxing.luminancesource;
import com.google.zxing.multiformatreader;
import com.google.zxing.result;
import com.google.zxing.common.hybridbinarizer;
 
import net.sf.fmj.ui.application.capturedevicebrowser;
import net.sf.fmj.ui.application.containerplayer;
import net.sf.fmj.ui.application.playerpanelprefs;
public class cameraframe2 extends jframe{
  private static int num = 0;
  public cameraframe2() throws exception{
   this.settitle("摄像头截图应用");
   this.setsize(480, 500);
   this.setdefaultcloseoperation(jframe.exit_on_close);
   final jpanel camerapanel = new jpanel();
   this.getcontentpane().setlayout(new borderlayout());
   this.getcontentpane().add(camerapanel, borderlayout.center);
   containerplayer containerplayer = new containerplayer(camerapanel);
   medialocator locator = capturedevicebrowser.run(null); //弹出摄像头设备选择
 
   playerpanelprefs prefs = new playerpanelprefs();
   containerplayer.setmedialocation(locator.toexternalform(), prefs.autoplay);
   
   new thread() {
  public void run() {
   while (true) {
    try {
    thread.sleep(1000);
     dimension imagesize = camerapanel.getsize();
     bufferedimage image = new bufferedimage(
     imagesize.width, imagesize.height,
     bufferedimage.type_int_argb);
     graphics2d g = image.creategraphics();
     camerapanel.paint(g);
     g.dispose();
     luminancesource source = new bufferedimageluminancesource(
     image);
     binarybitmap bitmap = new binarybitmap(
    new hybridbinarizer(source));
     result result;
     result = new multiformatreader().decode(bitmap);
     system.out.println("二维码====:" + result.gettext());
     inputstream is = cameraframe.class.getclassloader().getresourceasstream("resource/beep.mp3");
     player player = new player(is);
     player.play();
    } catch (exception re) {
     re.printstacktrace();
    }
   }
  }
   }.start();
  }
  
  public static void main(string[] args) throws exception{
   cameraframe2 camera = new cameraframe2();
   camera.setvisible(true);
  }
 }