jsplashwindowplus.java

一款JAVA开发的类迅雷的多线程下载系统,希望对大家有帮助

package downfile;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Cursor;
import java.awt.Dimension;
import java.awt.Image;
import java.awt.MediaTracker;
import java.awt.Toolkit;
import java.net.URL;
import java.net.URLClassLoader;

import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JProgressBar;
import javax.swing.JWindow;
import javax.swing.UIManager;

public class JSplashWindowPlus extends JWindow implements Runnable{
	Thread splashThread = null;
	static SuspendedDialog dialog;
	private  JProgressBar progress;
	
	public JSplashWindowPlus(){
		setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
		JPanel splash = new JPanel(new BorderLayout());
		
		ImageIcon splashpic = new ImageIcon(getImage("images/star.gif"));
	    splash.add(new JLabel(splashpic),BorderLayout.CENTER);
		
		progress = new JProgressBar(1,100);	
		progress.setStringPainted(true);		
		progress.setBorderPainted(true);
		progress.setString("程序正在启动，请梢候......");

		progress.setBackground(Color.white);
		splash.add(progress,BorderLayout.SOUTH);
		
		setContentPane(splash);
		
		Dimension screen = getToolkit().getScreenSize();
		pack();
		
		setLocation((screen.width - getSize().width)/2,
		(screen.height - getSize().height)/2);
	}
	
	public void start(){
		this.toFront();
		splashThread = new Thread(this);
		splashThread.start();
	}
	
    public void run(){
	   setVisible(true);
	   try{
		   for(int i =0;i<100;i++){
			   Thread.sleep(10);
			   progress.setValue(progress.getValue()+1);
		   }
	   }catch(Exception e){
		   
	   }
	   dispose();
	   	   	   
	   MainFrame.main.setVisible(true);
	   dialog.setVisible(true);
    }
    
    public static void main(String[] arg){
    	try {
            UIManager.setLookAndFeel(UIManager.
                                     getSystemLookAndFeelClassName());
              } catch (Exception exception) {
            exception.printStackTrace();
            } 
        MainFrame.main = new MainFrame();
        MainFrame.main.pack();
        MainFrame.main.setExtendedState(JFrame.MAXIMIZED_BOTH); //使主窗口最大化
                
        JSplashWindowPlus splash = new JSplashWindowPlus();
    	splash.start();    

     
       dialog = new SuspendedDialog();
       dialog.start();
        
       Timer yunxing = new Timer();  //记录程序运行的时间
       yunxing.start();
    }
     //  获得图片资源
	 Image getImage(String filename) {
		    URLClassLoader urlLoader = (URLClassLoader)this.getClass().
		        getClassLoader();
		    URL url = null;
		    Image image = null;
		    url = urlLoader.findResource(filename);
		    image = Toolkit.getDefaultToolkit().getImage(url);
		    MediaTracker mediatracker = new MediaTracker(this);
		    try {
		      mediatracker.addImage(image, 0);
		      mediatracker.waitForID(0);
		    }
		    catch (InterruptedException _ex) {
		      image = null;
		    }
		    if (mediatracker.isErrorID(0)) {
		      image = null;
		    }
		    return image;
		}
}