学步园

特别感谢monitor兄台的技术援助！

monitor兄台CSDN的博客地址：http://hi.csdn.net/space-3386597.html

monitor兄台于此相关的博文地址(标题：Java循环播放图片问题)：http://blog.csdn.net/monitor1394/archive/2010/12/23/6093765.aspx

录制代码

package code.record;</p> <p>import java.awt.Dimension;<br /> import java.awt.Rectangle;<br /> import java.awt.Robot;<br /> import java.awt.Toolkit;<br /> import java.awt.image.BufferedImage;<br /> import java.io.File;</p> <p>import javax.imageio.ImageIO;</p> <p>class ImagesCapture {<br /> private String fileName; // 文件的前缀<br /> private String defaultName = "GuiCamera";<br /> static int serialNum = 0;<br /> private String imageFormat; // 图像文件的格式<br /> private String defaultImageFormat = "png";<br /> Dimension d = Toolkit.getDefaultToolkit().getScreenSize();</p> <p> public ImagesCapture() {<br /> fileName = defaultName;<br /> imageFormat = defaultImageFormat;<br /> }</p> <p> public ImagesCapture(String s, String format) {<br /> fileName = s;<br /> imageFormat = format;<br /> }</p> <p> public void snapShot() {<br /> try {<br /> // 拷贝屏幕到一个BufferedImage对象screenshot<br /> BufferedImage screenshot = (new Robot())<br /> .createScreenCapture(new Rectangle(0, 0,<br /> (int) d.getWidth(), (int) d.getHeight()));<br /> serialNum++;<br /> // 根据文件前缀变量和文件格式变量，自动生成文件名<br /> String name = fileName + String.valueOf(serialNum) + "."<br /> + imageFormat;<br /> // 如果仅有文件名的话，默认存到项目的根目录下！<br /> File f = new File(name);<br /> System.out.print("Save File " + name);<br /> // 将screenshot对象写入图像文件<br /> ImageIO.write(screenshot, imageFormat, f);<br /> System.out.print("..Finished! ");<br /> } catch (Exception ex) {<br /> System.out.println(ex);<br /> }<br /> }</p> <p> public static void main(String[] args) {<br /> ImagesCapture cam = new ImagesCapture("Test", "JPG");<br /> // cam.snapShot();<br /> while(true) {<br /> cam.snapShot();<br /> try {<br /> Thread.sleep(50);<br /> } catch (InterruptedException e) {<br /> e.printStackTrace();<br /> }<br /> }<br /> }<br /> }<br />

播放代码

package code.play;</p> <p>import java.awt.Color;<br /> import java.awt.Frame;<br /> import java.awt.Graphics;<br /> import java.awt.event.WindowAdapter;<br /> import java.awt.event.WindowEvent;<br /> import java.awt.image.BufferedImage;<br /> import java.io.InputStream;</p> <p>import javax.imageio.ImageIO;<br /> import javax.swing.JPanel;</p> <p>// 这个程序不行，需要调整JVM内存的大小，-Xmx512M 才够支持初始化时加载120张左右的截图！<br /> // 而且行能很不稳定，垃圾收集器一工作起来不仅该程序而且整机都慢如蜗牛(-Xmx1024M情况下)</p> <p>// 进一步拓展，依据MP4的原理对图片进行压缩！制作进度条、暂停和启动，GUI化！<br /> public class ImagePlayer extends Frame {<br /> private static final long serialVersionUID = 8055029906280922502L;<br /> // 从1到270共270张图片<br /> // private static final int COUNT = 270;<br /> private static final int COUNT = 179;</p> <p> public ImagePlayer() {<br /> this.setSize(1024, 768);<br /> this.setLocation(50, 50);<br /> this.addWindowListener(new WindowAdapter() {<br /> public void windowClosing(WindowEvent e) {<br /> System.exit(1);<br /> }<br /> });<br /> DisplayJPanel djp = new DisplayJPanel(ImagePlayer.COUNT);<br /> djp.setDelay(100); // 缺省为50<br /> djp.setWork(true);<br /> this.add(djp);<br /> new Thread(djp).start();<br /> this.setVisible(true);<br /> }</p> <p> public static void main(String[] args) {<br /> new ImagePlayer();<br /> }<br /> }</p> <p>class DisplayJPanel extends JPanel implements Runnable {<br /> private static final long serialVersionUID = 7881859204259181796L;<br /> /** 背景颜色 */<br /> private final Color B_COLOR = Color.LIGHT_GRAY;<br /> /** 起始X坐标 */<br /> private final int WORK_X = -150;<br /> /** 起始Y坐标 */<br /> private final int WORK_Y = -70;<br /> /** 当前要画的图片 */<br /> private BufferedImage currentImage = null;<br /> /** 播放延时 */<br /> private int delay = 50;<br /> /** 是否播放 */<br /> private boolean work = true;<br /> /** 是否暂停 */<br /> private boolean stop = false;<br /> private int frameNumber = 0;<br /> private int frameCount;</p> <p> public DisplayJPanel(int frameCount) {<br /> this.frameCount = frameCount;<br /> }</p> <p> public void run() {<br /> while (work) {<br /> if (stop) {<br /> sleep(1000);<br /> continue;<br /> }<br /> repaint();<br /> sleep(delay);<br /> }<br /> }</p> <p> @Override<br /> public void paintComponent(Graphics g) {<br /> g.setColor(B_COLOR);<br /> g.fillRect(0, 0, this.getWidth(), this.getHeight());<br /> if(frameNumber < frameCount) {<br /> // ①<br /> // String picPath = "D://Program Files//eclipse3.3//workspace//" +<br /> // "PictureVideoPlayer//src//jpgImages//Test" + (frameNumber + 1) + ".JPG";<br /> // ②<br /> // String picPath = "src/jpgImages/Test" + (frameNumber + 1) + ".JPG";</p> <p> // ③<br /> String picPath = "jpgImages2/Test" + (frameNumber + 1) + ".JPG";<br /> InputStream is = ImagePlayer.class.getClassLoader().getResourceAsStream(picPath);<br /> frameNumber ++;<br /> try {<br /> // currentImage = ImageIO.read(new FileInputStream(picPath));<br /> currentImage = ImageIO.read(is);<br /> } catch (Exception e) {<br /> System.out.println("加载图片时出现错误，程序即将退出！");<br /> System.exit(1);<br /> }<br /> g.drawImage(currentImage, WORK_X, WORK_Y, null);<br /> } else {<br /> frameNumber = 0;<br /> }<br /> }</p> <p> private void sleep(int s) {<br /> try {<br /> Thread.sleep(s);<br /> } catch (Exception e) {<br /> }<br /> }</p> <p> public void setDelay(int delay) {<br /> this.delay = delay;<br /> }</p> <p> public void setWork(boolean work) {<br /> this.work = work;<br /> }</p> <p> public void setStop(boolean stop) {<br /> this.stop = stop;<br /> }<br /> }</p> <p>