javaѧϰ֮·5 javaΪ²Ëµ¥À¸Ìí¼Ó¿ì½Ý¼ü(ת)
package swimg;
import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.KeyStroke;
public class JMenuDemo extends JMenuBar implements ActionListener{
JMenuItem item1;
public JMenuDemo(){
add(createJMenuone());
}
public JMenu createJMenuone(){
JMenu menu=new JMenu("Îļþ(F)");
menu.setMnemonic(KeyEvent.VK_F);
JMenuItem item=new JMenuItem("н¨(N)",KeyEvent.VK_N);
item.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_N,ActionEvent.CTRL_MASK));
menu.add(item);
item1=new JMenuItem("Í˳ö(X)",KeyEvent.VK_X);
item1.addActionListener((ActionListener) this);
item1.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_X,ActionEvent.CTRL_MASK));
menu.add(item1);
return menu;
}
public static void main(String[] args) {
JFrame frame=new JFrame("²Ëµ¥À¸");
frame.setBounds(200,200,400,400);
frame.setResizable(true);
frame.setJMenuBar(new JMenuDemo());
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setVisible(true);
}
public void actionPerformed(ActionEvent e) {
// TODO ×Ô¶¯Éú³É·½·¨´æ¸ù
if(e.getSource()==item1){
System.exit(0);
}
}
}
Ïà¹ØÎĵµ£º
½ñÌìÎÒÌýÁË·ëÀÏʦ½²µÄsession¿Î³Ì£ºÎÒ×öÁ˼òµ¥µÄ±Ê¼Ç
1. sessionÓÃÀ´´æÈ¡´óÁ¿µÄÊý¾Ý£»¿ÉÒÔ¿´×öÒ»¸öÈÝÆ÷£»
2. ÓÃsessionID£¨StringÀàÐ͵Ä,ΨһµÄ£¬±£´æÔÚ¿Í»§¶Ë£©À´±êʶsession£¬
3. &nb ......
ÎÒ½ñÌìѧϰÁËServletÖ®¼äµÄͨÐÅjspµÄ»ù´¡ÖªÊ¶£»ÎÒ×öÁ˼òµ¥µÄ±Ê¼Ç£º
Ò»¡¢ServletͨÐÅ£º
a) £¨²»Ó󬼶Á´½Ó£©´ÓÒ»¸öServletתµ½ÁíÒ»¸öServlet£º
&n ......
ÎÒ½ñÌìѧϰÁËjavabean ֪ʶ£¬ÉÏ¿Îʱ×öÁ˼òµ¥µÄ±Ê¼Ç£º
1. jsp :forword ÊÇjspµÄ¶¯×÷Ö¸Á±»forwardת·¢µÄ×ÊÔ´±ØÐëÓë·¢³öÇëÇóµÄÒ³Ãæ´¦ÓÚÏàͬµÄÉÏÏÂÎÄ»·¾³ÖС£
a) ͨ³£ÓÃÓÚȨÏ޵Ǽ£¬£¨itcast1130jsp01/forword/lo ......
1. ¼òµ¥±êÇ©£¬±êÇ©´¦ÀíÀàҪʵÏÖsimpletag£¨javax.servlet. jsp.tagext.jspTag ½Ó¿Ú£©
a) Õý³£±êÇ©¡¢¿Õ±êÇ©£¬Ç¶Ì×±êÇ©£¬
2. Si ......