把你们java的问题post上来

winmxaa

把你们java的问题post上来

loychang

now i got 2 JFrame.
the 1st JFrame i got 1 JButton.
when i click that button it will link to 2nd JFrame or 2nd JFrame will appear...
but the 1st JFrame also at there....
how do i make the 1st JFrame disappear when the 2nd JFrame appaer ....???????
pls.............HELP>>>>>>>
thx thx thx thx

winmxaa

原帖由 loychang 于 28-3-2008 11:15 AM 发表
now i got 2 JFrame.
the 1st JFrame i got 1 JButton.
when i click that button it will link to 2nd JFrame or 2nd JFrame will appear...
but the 1st JFrame also at there....
how do i make the 1st JFra ...

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Frame;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

import javax.swing.JButton;
import javax.swing.JPanel;

public class MyFrame extends Frame implements ActionListener {

    JButton button = null;
    JPanel frame1 = null;

    public static void main(String[] args) {
        MyFrame mf = new MyFrame();
        mf.launchFrame();
    }

    public void launchFrame() {
        frame1 = new JPanel();
        frame1.add(getJButton());
        frame1.setBackground(Color.red);

        JPanel frame2 = new JPanel();
        frame2.setBackground(Color.blue);

        this.setSize(400, 300);
        this.addWindowListener(new WindowAdapter() {
            public void windowClosing(WindowEvent e) {
                System.exit(0);
            }
        });
        this.add(frame1, BorderLayout.NORTH);
        this.add(frame2, BorderLayout.CENTER);
        this.setVisible(true);
    }

    public JButton getJButton() {
        if (button == null) {
            button = new JButton();
            button.setText("button 1");
            button.addActionListener(this);
        }
        return button;
    }

    public void actionPerformed(ActionEvent e) {
        frame1.setVisible(false);
    }
}

o1j2m3

想在load-balancing的情况下，让几台servers同时接触一个hibernate的cache？

tensaix2j

我也很想学学 load balancing 的东西。。。
因为没那么多架server 所以没试过。。
请问 概念是怎样的？   是不是 一架server 负责route http request
到别架server ？ 那么如果 同时 有 100000 个request， 那一架负责这个routing的不是很吃力