Displaying keyword search results 1 - 12
Created by Fang on March 30, 2012 10:07:25 Last update: March 08, 2013 13:41:57
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 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 magnum on March 02, 2011 19:38:41 Last update: March 02, 2011 19:38:41
Once you apply a filter to a URL pattern:
<filter-mapping> <filter-name>theFilter</fi...there's no option in web.xml to exclude a more specific pattern such as: /public/* . But you can put the exclusion logic in the filter itself:
<filter> <filter-name>theFilter</filter-nam...And in the filter code:
public void init(FilterConfig cfg) throws ServletE...
Created by Dr. Xi on November 23, 2010 20:41:28 Last update: January 14, 2011 16:15:20
The servlet API allows servlet filters to be inserted into the processing cycle to form a Filter Chain . How is a chain defined, and what is the ordering of filters in the chain? The servlet filter chain is formed by defining multiple filters for the same servlet or URL pattern in web.xml . The order in which the filters are invoked is the same order as <filter-mapping> s appear in the web.xml file. For example, if this is defined in web.xml :
<!-- Filter mapping --> <filter-mapping> ...then servletFilter2 will be applied before servletFilter . Actually, it's more accurate to imagine these filters as layers or wraps instead of chains. In the above example, servletFilter2 wraps servletFilter .
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 tomcatonlyCopy 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.
Created by Fang on August 10, 2010 21:37:36 Last update: October 25, 2010 20:18:47
The tags <fmt:formatNumber> Format a numeric value as number , currency or percentage - controlled by the type attribute (defaults to number if type is missing). Syntax:
<fmt:formatNumber value="numericValue" [type="...Attributes: Name Dynamic? Type Description value true String or Number Numeric value to be formatted. type true String Specifies whether the value is to be formatted as number, currency, or percentage. pattern true String Custom formatting pattern, must follow the pattern syntax specified by the class java.text.DecimalFormat . currencyCode true String ISO 4217 currency code. Applied only when formatting currencies (i.e. if type is equal to "currency"); ignored otherwise. currencySymbol true String Currency symbol. Applied only when formatting currencies (i.e. if type is equal to "currency"); ignored otherwise. It is used only when currencyCode is...
Created by voodoo on July 11, 2009 15:14:55 Last update: July 29, 2010 22:45:48
cURL is a command line tool for transferring files with URL syntax. The main purpose and use for cURL is to automate unattended file transfers or sequences of operations. It's really easy to see HTTP headers with curl:
C:\>curl --head http://www.google.com HTTP/1.0 ...or, headers and page together (dump headers to stdout):
$ curl --dump-header - http://www.google.com HTTP/...Download openssl from openssl.org:
C:\>curl --help Usage: curl [options...] <url> ...
Created by Fang on April 04, 2010 04:12:14 Last update: July 21, 2010 14:52:58
The tags <c:if> The <c:if> tag may be used with or without body content:
<!-- Without body content, used to export vari...In my opinion, the version without body content is pretty much useless (the <c:set> tag is a lot more meaningful for this purpose). If body content exists, it is inserted into the page if the testCondition is true . Optional attributes var and scope may be specified. If var is specified, a variable whose name is the value of var is exported to the associated scope ( pageScope if no scope is specified). The type of the exported variable is Boolean and its value is the value of the testCondition . <c:choose>, <c:when>, <c:otherwise> These tags imitate the Java control structure if...else...
Created by Fang on March 22, 2010 02:55:04 Last update: March 22, 2010 03:48:55
If you followed the steps in Start a Java EE application with Maven , you'll arrive at an EAR file that's ready to be deployed. However, if you look carefully, you'll find that the ejb-1.0.jar file is included in the EAR file twice : once as the ejb module of the EAR, another time under the WEB-INF/lib folder of webapp-1.0.war . The second is brought about by specifying the ejb project as a dependency in the webapp POM. Actually, the webapp project is dependent on the ejb project as an EJB client. So we should have been more accurate by specifying the type of dependency as ejb-client , not ejb : Edit webapp/pom.xml , change the ejb dependency to ejb-client :
<project> <modelVersion>4.0.0</modelVersion...Update ejb/pom.xml...
Created by Dr. Xi on October 23, 2008 03:54:04 Last update: October 23, 2008 03:57:44
Add validator plugin in struts-config.xml
<struts-config> . . . ...Set validate="true" on action form
<struts-config> <!-- ========== Form Bean De...Add validation rules in validation.xml
<?xml version='1.0' encoding='windows-1252'?> <...If you override validate , make sure super.validate is called.
package com.example; import javax.servlet.h...Read the documentation: http://struts.apache.org/1.2.4/userGuide/dev_validator.html
Created by Dr. Xi on August 15, 2007 18:08:34 Last update: November 08, 2007 22:00:01
I had this problem when deploying a J2EE application into Oracle app server. It worked fine with an OC4J container configured in the default group. But it failed to start with an OC4J container I created. Here's a sample stack trace of the initialization exception:
07/08/14 13:32:46.34 10.1.3.3.0 Started 07/08/1...The problem was, the struts ActionServlet loads commons logging LogFactory, the log factory somehow knows that it needs log4j, but it can't load log4j since it's loaded by a different class loader. The solution for Oracle is to omit commons logging from the list of inherited libraries. Add this to META-INF/orion-application.xml solves the problem:
<imported-shared-libraries> <remove-inhe...Actually, this is a quite common problem with commons-logging. If you search the web, you'll find that people have...