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Created by Fang on March 30, 2012 10:07:25
Last update: March 30, 2012 10:09:08
After a user resets a password, I want to force the user to change the password before she gets access to secured content. This is usually done with a servlet filter. But with Spring MVC, you can also use a HandlerInterceptor . According to Spring JavaDoc: HandlerInterceptor is basically similar to a Servlet 2.3 Filter, but in contrast to the latter it just allows custom pre-processing with the option of prohibiting the execution of the handler itself, and custom post-processing. Filters are more powerful, for example they allow for exchanging the request and response objects that are handed down the chain. Note that a filter gets configured in web.xml, a HandlerInterceptor in the application context. As a basic guideline, fine-grained handler-related preprocessing tasks are candidates...
Created by voodoo on September 30, 2011 08:22:39
Last update: February 18, 2012 16:17:36
This iptables rule redirects all port 80 traffic from subnet 192.168.0.0/24 to 192.168.0.1 running HTTP proxy (say squid):
/usr/sbin/iptables -t nat -A PREROUTING -s 192.168... Make any packets destined to port 3256 on firewall be NAT'ed to internal system server on port 80: iptables -t nat -I PREROUTING -s ! 192.168.2.0/24 ... To make internal web server work for clients from the internet, LAN and the firewall itself: Make all packets from the Internet going to port 80 on the firewall ( $INET_IP ) to be redirected (or DNAT'ed) to the internal HTTP server ( $HTTP_IP ): iptables -t nat -A PREROUTING --dst $INET_IP -p tc... SNAT the packets entering the firewall that are destined for $HTTP_IP (internal HTTP server) port 80 so that they...
Created by James on January 10, 2011 15:20:10
Last update: February 03, 2012 10:10:14
Dojo ShrinkSafe: http://shrinksafe.dojotoolkit.org/ : command line utility written in Java, based on Rhino - JavaScript engine written in Java.
Douglas Crockford's JSMIN: http://crockford.com/javascript/jsmin : command line utility written in C, can download MS-DOS exe.
Dean Edwards' Packer: http://dean.edwards.name/packer/ : online tool, or .NET, Perl, PHP application.
YUI Compressor: http://developer.yahoo.com/yui/compressor/ : command line utility written in Java.
Google Closure Compiler : command line Java application, web application, or RESTful API.
One problem is, the compressor utility may not be 100% reliable. So make sure to test the compressed script.
Created by Fang on November 10, 2011 09:26:12
Last update: November 10, 2011 09:26:12
Syntax highlighted XML schema for JSF 2.0 Application Configuration Resource File ( faces-config.xml ). Almost 3000 lines!
<?xml version="1.0" encoding="UTF-8"?>
<xsd:sch...
Created by Fang on September 07, 2009 20:44:15
Last update: November 03, 2011 14:43:19
Step 1: Repackage a web app as EAR A Java EE application is a multimodule Maven project. At the very least you'll need to package a WAR and an EAR. To get started, I'll simply re-package the simple webapp as an EAR. Create a directory named javaee-app Copy the webapp from here to javaee-app . Rename struts1app to webapp . Create pom.xml under javaee-app :
<project> <modelVersion>4.0.0</modelVersion>... Create a directory named ear under javaee-app . Create pom.xml under ear : <project> <modelVersion>4.0.0</modelVersion>... Modify pom.xml in the webapp directory so that it looks like this: <project> <modelVersion>4.0.0</modelVersion> ... Build with " mvn package " in the javaee-app directory. You can see that ear-1.0.ear is successfully generated in javaee-app/ear/target . Maven successfully resolves dependencies between the sub-projects....
Created by Fang on October 31, 2011 21:10:10
Last update: October 31, 2011 21:13:10
In this example I'll add a parameter to a facelets template. The example contains three tabs, each tab points to a different page. The tab control is shared among all pages, therefore, it is put in the template.
Starting from the simple facelet example , make these additions:
Create a new template WEB-INF/templates/tabs.xhtml :
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Stric...
Add a page for the about tab ( about.xhtml ):
<?xml version="1.0" encoding="UTF-8"?>
<ui:comp...
Add a page for the news tab ( news.xhtml ):
<?xml version="1.0" encoding="UTF-8"?>
<ui:comp...
Add a page for the partner tab ( partner.xhtml ):
<?xml version="1.0" encoding="UTF-8"?>
<ui:comp...
Build and re-deploy the application. Launch the browser and load page http://localhost:8080/facelet-demo/about.jsf .
This is a screenshot:
Created by Fang on October 28, 2011 14:49:53
Last update: October 28, 2011 14:52:19
Facelet templates can be nested, for example, a page can use a template which inherits from another template. To demonstrate this, let's start from the simple example and make these additions:
Add a place holder for CSS style sheets in WEB-INF/templates/default.xhtml :
<h:head>
<title>Facelets Template Demo</tit...
Add a derivative template ( WEB-INF/templates/default-style.xhtml ) which provides CSS:
<?xml version="1.0" encoding="UTF-8"?>
<ui:comp...
Add a page that uses the styled template ( home-style.xhtml ):
<?xml version="1.0" encoding="UTF-8"?>
<ui:comp...
The only difference between this file and home.xhtml is the template being used.
Compare the display of the pages home.xhtml and home-style.xhtml .
Created by mee2 on October 20, 2011 16:52:33
Last update: October 20, 2011 16:54:17
Alfresco RESTful URLs provided by Web Scripts are extensively documented, but examples are hard to come by. This makes it hard to ramp up for beginners. Here are some examples I tested on 3.4.4 enterprise edition and 4.0a community edition, with the results documented. To list the available scripts:
http://localhost:8081/alfresco/service/index There's a Refresh Web Scripts button at the bottom of the page. If you add a Web Script, you need to click that button in order for the system to know about your addition. To get information about the root folder ( Company Home ): http://localhost:8081/alfresco/service/cmis/p To get information about the folder Data Dictionary : http://localhost:8081/alfresco/service/cmis/p/Data... To get information about the folder Data Dictionary/Space Templates : http://localhost:8081/alfresco/service/cmis/p/Data... You get the idea. To list the children...
Created by nogeek on December 31, 2010 11:56:25
Last update: December 31, 2010 11:56:25
These are the steps to create a JBoss 5.1.0 configuration with Tomcat from the built-in minimal configuration. Change directory to $JBOSS_HOME/server . Make a copy of the minimal configuration.
cp -R minimal tomcatonly Copy bindingservice.beans from the default configuration. cp -R default/conf/bindingservice.beans tomcatonly... Copy login-config.xml from the default configuration. cp default/conf/login-config.xml tomcatonly/conf/ Edit tomcatonly/conf/jboss-service.xml : Add jars from the common/lib directory: <!-- Load all jars from the JBOSS_DIST/serv... Add the JAAS security manager section (copy from the default profile, and yes, JBoss tomcat can't live without the JBoss JAAS manager). <!-- JAAS security manager and realm mappin... Copy the Tomcat (JBoss web) deployer from the default configuration. cp -R default/deployers/jbossweb.deployer tomcaton... Copy metadata-deployer-jboss-beans.xml and security-deployer-jboss-beans.xml from the default profile. cp default/deployers/metadata-deployer-jboss-b... Copy...
Created by nogeek on November 11, 2010 23:58:24
Last update: November 11, 2010 23:59:24
After all I needed basic authentication for my Tomcat service running in JBoss. These are the steps to add the JBoss authentication service.
Edit jboss-tomcat50.sar/WETA-INF/jboss-service.xml , make sure SecurityManagerService is not commented out:
<!-- A mapping to the server security manager ...
Copy jboss-jaas.jar from the default config:
cp server/default/lib/jboss-jaas.jar server/myserv...
Add this section to server/myserver/conf/jboss-service.xml
<!-- ======================================...
