From the monthly archives: December 2008

Best Practices for Speeding Up Your Web Site

By On 22/12/2008 · Leave a Comment

from http://developer.yahoo.com/performance/rules.html

Best Practices for Speeding Up Your Web Site

The Exceptional Performance team has identified a number of best practices for making web pages fast. The list includes 34 best practices divided into 7 categories.

Filter by category:

 

Content

 

Server

 

Cookie

 

CSS

 

Javascript

 

Images [...]

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java.io.File or classloader can’t open file by URL with %XX encoded characters

By On 09/12/2008 · Leave a Comment

refer to: http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4968789

Another rule for developing Java: DO NOT put you project in a folder whose absolute path contains any space…

This story tells us, if an issue exists, it persists.

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Table Border Issue in both IE and Firefox

By On 04/12/2008 · Leave a Comment

Just discover that when coding the following into style sheet:

table { border-collapse: collapse; } th, td { position: relative; border: 1px solid #eee; }

In Firefox 3, top and right borders of each table cell will disappear.

In IE 7, borders could not collapse.

Don’t know why this happened, need to do a little [...]

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Just a Note on How to Secure a JBoss Web Application…

By On 04/12/2008 · Leave a Comment

Please refer to http://www.jboss.org/community/docs/DOC-12185

1. Configure the web application for security by adding constraints to the web deployment descriptor.

<security-constraint> <web-resource-collection> <web-resource-name>All resources</web-resource-name> <description>Protects all resources</description> <url-pattern>/*</url-pattern> </web-resource-collection> <auth-constraint> <role-name>WebAppUser</role-name> </auth-constraint> </security-constraint> <security-role> <role-name>WebAppUser</role-name> </security-role> <login-config> <auth-method>BASIC</auth-method> <realm-name>Test Realm</realm-name> </login-config>

2. Configure the jboss-web.xml file to point to the “my-web” application.

<security-domain>java:/jaas/my-web</security-domain> [...]

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