To build and install the Squid Cache, type:
% ./configure –prefix=/usr/local/squid
% make all
% make install
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how to install squid-2.5.STABLE13 on linux
March 9th, 2010validation problems when deploy an application in weblogic 10
March 3rd, 2010Error message is:
Unable to access the selected application. Exception in AppMerge flows' progression Exception in AppMerge flows' progression VALIDATION PROBLEMS WERE FOUND problem: cvc-complex-type.2.3: Element 'filter@http://java.sun.com/xml/ns/javaee' with element-only content type cannot have text content.: problem: cvc-complex-type.2.3: Element 'init-param@http://java.sun.com/xml/ns/javaee' with element-only content type cannot have text content.: problem: cvc-complex-type.2.3: Element 'init-param@http://java.sun.com/xml/ns/javaee' with element-only content type cannot have text content.: problem: cvc-complex-type.2.3: Element 'filter-mapping@http://java.sun.com/xml/ns/javaee' with element-only content type cannot have text content.: VALIDATION PROBLEMS WERE FOUND problem: cvc-complex-type.2.3: Element 'filter@http://java.sun.com/xml/ns/javaee' with element-only content type cannot have text content.: problem: cvc-complex-type.2.3: Element 'init-param@http://java.sun.com/xml/ns/javaee' with element-only content type cannot have text content.: problem: cvc-complex-type.2.3: Element 'init-param@http://java.sun.com/xml/ns/javaee' with element-only content type cannot have text content.: problem: cvc-complex-type.2.3: Element 'filter-mapping@http://java.sun.com/xml/ns/javaee' with element-only content type cannot have text content.:
If you meet this error message, please check your web.xml and make sure it does not contain any unusual characters.
open a port on linux server
January 13th, 2010=========================================
iptables -A RH-Firewall-1-INPUT -p tcp -m state –state NEW -m tcp –dport 3690 -j ACCEPT
=========================================
RH-Firewall-1-INPUT is the name of the chain, and change 3690 to the port number you expect.
You must restart the service to make it effective:
[root@localhost ~]# service iptables restart
make div align center
December 31st, 2009use style as:
.style{margin-left:auto;margin-right:auto;}
or
.style{margin:0 auto;}
for short
ORACLE UTL_RAW.BIT_AND
December 1st, 2009eg.
select to_number(UTL_RAW.bit_and(to_char(1), ‘3′)) from dual;
href and onclick method in ‘A’ tag
October 16th, 2009How to invoke onclick method but not go to the page head.
1 | <a href="#" onclick="javascript:jsMethod();return false;">a link</a> |
create a swing application
September 11th, 20091 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 | import java.awt.Container; import java.awt.FlowLayout; import java.awt.event.WindowAdapter; import java.awt.event.WindowEvent; import javax.swing.Icon; import javax.swing.ImageIcon; import javax.swing.JApplet; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.WindowConstants; public class Test3 extends JApplet { public void init() { Container contentPane = getContentPane(); Icon icon = new ImageIcon(ClassLoader.getSystemResource("swing.gif")); JLabel label = new JLabel(icon); // java.net.URL codebase = getClass().getResource("../swing.gif"); // JLabel label = new JLabel(new ImageIcon(codebase)); contentPane.setLayout(new FlowLayout()); contentPane.add(label); } public static void main(String args[]) { final JFrame f = new JFrame(); JApplet applet = new Test3(); applet.init(); f.setContentPane(applet.getContentPane()); f.setBounds(100, 100, 308, 199); f.setTitle("An Application"); f.setVisible(true); f.setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE); f.addWindowListener(new WindowAdapter() { public void windowClosed(WindowEvent e) { System.exit(0); } }); } } |
how to read a url
September 1st, 2009String s = request.getRequestURL().toString(); URL url = new URL(s); BufferedReader bf = new BufferedReader(new InputStreamReader(url.openStream()));
use kill with awk
August 27th, 2009kill `ps -ef | awk ‘{if($11~/WorkOrderProcessor/) print$2}’`
VI command - D & x
August 10th, 2009D
The D command deletes from the cursor position to the end of the line. (D is a shortcut for d$.)
x
Often you want to delete only one or two characters. Just as r is a special change command to replace a single character, x is a special delete command to delete a single character. x deletes only the character the cursor is on.
