Java高手请帮忙！！！

Question

在登录处理页面输出<script>window.open("loading.htm",loading)</script>，在登录成功后<script>loading.close()</script>就行了吧

Answer 1

我是在Java中编程（用JBuilder），不是用的Jscript

Answer 2

给你个＜java与模式＞中的例子看看吧：
1.Client.java
import java.awt.*;
import javax.swing.*;public class Client extends JFrame
{
    private static final int IMAGE_WIDTH = 270;
    private static final int IMAGE_HEIGHT = 380;    private Icon imageIconProxy = null;    public static void main(String[] args)
    {
        Client app = new Client();
        app.show();
    }    public Client()
    {
        super("Virtual Proxy Client");
        imageIconProxy = new ImageIconProxy("c:/hongyan.jpg", IMAGE_WIDTH, IMAGE_HEIGHT);        setBounds(100, 100, IMAGE_WIDTH + 10, IMAGE_HEIGHT + 30);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    }    public void paint(Graphics g)
    {
        super.paint(g);
        Insets insets = getInsets();
        imageIconProxy.paintIcon(this, g, insets.left, insets.top);
    }
}2.ImageIconProxy.java
import java.awt.*;
import javax.swing.*;public class ImageIconProxy implements Icon
{
    private ImageIcon realIcon = null;
    private String imageName;
    private int width;
    private int height;
    private boolean isIconCreated = false;    public ImageIconProxy(String imageName, int width, int height)
    {
        this.imageName = imageName;
        this.width = width;
        this.height = height;
    }    public int getIconHeight()
    {
        return realIcon.getIconHeight();
    }    public int getIconWidth()
    {
        return realIcon.getIconWidth();
    }    // The proxy's paint() method is overloaded to draw a border
    // and a message "Loading author's photo.." while the image
    // loads. After the image has loaded, it is drawn. Notice
    // that the proxy does not load the image until it is
    // actually needed.
    public void paintIcon(final Component c, Graphics g, int x, int y)
    {
        if (isIconCreated)
        {
            realIcon.paintIcon(c, g, x, y);
            g.drawString("Java and Patterns by Jeff Yan, Ph.D", x + 20, y + 370);
        }
        else
        {
            g.drawRect(x, y, width - 1, height - 1);
            g.drawString("Loading author's photo...", x + 20, y + 20);            // The image is being loaded on another thread.
            synchronized(this)
            {
                SwingUtilities.invokeLater(
                    new Runnable()
                    {
                        public void run()
                        {
                            try
                            {
                                // Slow down the image-loading process.
                                Thread.currentThread().sleep(2000);                                // ImageIcon constructor creates the image.
                                realIcon = new ImageIcon(imageName);
                                isIconCreated = true;
                            }
                            catch (InterruptedException ex)
                            {
                                ex.printStackTrace();
                            }
                            // Repaint the icon's component after the
                            // icon has been created.
                            c.repaint();
                        }
                    });
            }
        }
    }
}

Answer 3

能不能写得简单点，我想这个跟应该线程有关可是我只要show了那个浮动窗口，则show后面的语句就不执行了，一直到我把这个浮动窗口关闭以后再执行。我希望能在show的同时执行后面的连接数据库的语句。

Answer 4

Fire一个打开窗口的Event
联完后再Fire一个关掉窗口的Event

Answer 5

对不起,原来的代码在一个项目中,实在是不方便贴出来的.
随便写了个Demol:
import java.sql.*;
import sun.jdbc.odbc.JdbcOdbcDriver;
public class LinkDataBaseThread extends Thread{
   boolean notLinkErr = true;
   String dbDriver = "sun.jdbc.odbc.JdbcOdbcDriver";
   String dbURL="";
   String userName = "";
   String password = "";
   int outTime = 100000;   Connection conn = null;
   public LinkDataBaseThread(String url,String user,String passoword ){
       dbURL = url;
       userName = user;
       this.password = password;
   }   public void run(){
       notLinkErr = linkDataBase();   }   private boolean linkDataBase(){
    try {
        Class.forName(dbDriver);
        DriverManager.setLoginTimeout(outTime);
        try {
            conn = DriverManager.getConnection(dbURL,userName,password);
            try {
                Thread.sleep(5000); //模拟远程服务器的连接,进行延时.
            }
            catch (InterruptedException ex) {
            }
        }
        catch (SQLException ex) {
            System.out.println("不能连接数据库!");
            ex.printStackTrace();
            return false;
        }
    }
    catch (ClassNotFoundException ex) {
        System.out.println("没有找到jdbc驱动");
        ex.printStackTrace();
        return false;
    }
       return true;
   }   public Connection getConnection(){
       return conn;
   }   public boolean isNotLinkErr(){
       return notLinkErr ;
   }   public void setOutTime(int outTime){
       this.outTime = outTime;
   }   public static void  main(String[] args){
       //test
       javax.swing.JOptionPane.showMessageDialog(null,"正在连接,请稍后","正在连接,请稍后",javax.swing.JOptionPane.WARNING_MESSAGE);//改为自己的提示窗口,登录成功后再隐藏
       LinkDataBaseThread  lbt = new LinkDataBaseThread("jdbc:odbc:test","sa","");
       Connection con= null;
       lbt.start();
       while(lbt.isNotLinkErr()){
           if(null==(con=lbt.getConnection()) ){
               System.out.print(".");
               try {
                   Thread.sleep(500);
               }
               catch (InterruptedException ex) {
                   ex.printStackTrace();
               }
           }else{
               System.out.println("");
               System.out.println("连接成功!con:"+con);
               break;
           }
       }
   }
}