有关多线程顺序执行的问题

lgq_0714 2013-05-16 04:18:10

现有如下代码



public ImageUtils(final String url, final int maxWidth, final int maxHeight, final int pageNo,final String userID, final String topic) {

	

	super(new BorderLayout());

	System.out.println("url="+url);

	JPanel webBrowserPanel = new JPanel(new BorderLayout());

	final JWebBrowser webBrowser = new JWebBrowser(null);

	webBrowser.setBarsVisible(false);

	webBrowser.navigate(url);

	webBrowserPanel.add(webBrowser, BorderLayout.CENTER);

	add(webBrowserPanel, BorderLayout.CENTER);



	JPanel panel = new JPanel(new FlowLayout(FlowLayout.CENTER, 4, 4));



	webBrowser.addWebBrowserListener(new WebBrowserAdapter() {



		// 监听加载进度

		public void loadingProgressChanged(WebBrowserEvent e) {

			// 当加载完毕时

			if (e.getWebBrowser().getLoadingProgress() == 100) {

				String result = (String) webBrowser.executeJavascriptWithResult(jsDimension.toString());

				int index = result == null ? -1 : result.indexOf(":");

				NativeComponent nativeComponent = webBrowser.getNativeComponent();

				Dimension originalSize = nativeComponent.getSize();

				Dimension imageSize = new Dimension(Integer.parseInt(result.substring(0, index)), Integer.parseInt(result.substring(index + 1)));

				imageSize.width = Math.max(originalSize.width,imageSize.width+20);

				imageSize.height = Math.max(originalSize.height,imageSize.height);

				nativeComponent.setSize(imageSize);

				BufferedImage image = new BufferedImage(imageSize.width,imageSize.height, BufferedImage.TYPE_INT_RGB);

				nativeComponent.paintComponent(image);

				nativeComponent.setSize(originalSize);

				// 当网页超出目标大小时

				System.out.println("imageSize.width=" + imageSize.width);

				System.out.println("maxWidth=" + maxWidth);

				System.out.println("imageSize.height=" + imageSize.height);

				System.out.println("maxHeight=" + maxHeight);

				

				if (imageSize.width > maxWidth || imageSize.height > maxHeight) {

					// 截图部分图形

					image = image.getSubimage(0, 0, 780, 460);

				}

				try {

					String fileDir = new PathUtils().getWebInfPath()+"record/"+userID+"/tp"+topic+"/";

					File dstFile = new File(fileDir);

					if (!dstFile.exists()){

						dstFile.mkdirs();

					}

					System.out.println(fileDir);

					// 输出图像

					ImageIO.write(image, "jpg", new File(fileDir+pageNo+".jpg"));

					System.out.println(fileDir);

					System.out.println("图片输出结束！");

				} catch (IOException ex) {

					ex.printStackTrace();

				}

			}

		}

	}



	);

	add(panel, BorderLayout.SOUTH);



}



for(int i=1; i<33; i++)

{

	final String url = new PropertiesUtils().getPropertyValue("DomainName")+"tp"+topic+".html?page="+i;

	final int page = i;

	NativeInterface.open();

	SwingUtilities.invokeLater(new Runnable() {

		public void run() {

			JFrame frame = new JFrame("以DJ组件保存指定网页截图");

			frame.getContentPane().add(new ImageUtils(url,780, 460,page,"1","02"), BorderLayout.CENTER);//获取指定url网页快照图片，然后存到相应的目录

			frame.setSize(780, 460);

			frame.invalidate();

			frame.pack();

			frame.setVisible(false);

		}

	});

}

System.out.println("结束");