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Migrating

• See the Migration Guide

General

• Where do we get the latest version of the framework?
• What are some of the framework's best features?
• What are the fundamental differences between Struts and JSF?
• Can you suggest an elevator pitch?

HOWTO

• How can we display dynamic or static images that can be provided as an array of bytes?
• How can we return a text string as the response?
• How can we test applications?
• How can we test Actions?
• How do we upload files?
• How do we download files within the framework?
• How can we force the Action Mappings (i.e. struts.xml) to reload?
• How can I test my action output, validation or the action execution outside a container?

Configuration

• Can we break up a large struts.xml file into smaller pieces?
• Parameters in configuration results
• Make Struts throw exceptions on missing properties, or log them

Accessing Resources

• How do we get access to the session?
• How do we get invalidate the session?
• How can we access the HttpServletRequest?
• How can we access the HttpServletResponse?
• How can we access request parameters passed into an Action?
• How do we access static parameters from an Action?
• Can we access an Action's Result?
• How do I obtain security details (e.g. JAAS)?
• How do we access the ActionInvocationAction Invocation, action name or namespace from a view?

Per-Page Settings

• Can I change theme on a per-page basis?
• Can I change templateDir on a per-page basis?
• Can I change templateSuffix on a per-page basis?

Interceptors

• Why isn't our Prepare interceptor being executed?
• Why does my setter not get called by the Params interceptor?
• How do we configure an Interceptor to be used with every Action?

Validation

• Why is my action returning "input" when the form is filled out correctly?
• How do I use messages from within the validator?
• How can I fix the "Attribute 'short-circuit'" error message?
• How do we repopulate controls when validation fails?
• How do I unit test my action's validation logic?
• Why does WW ignore my message when its enclosed in CDATA?

Localization

• How do we change locales?
• How do I set a global resource bundle?
• How do I decouple XWork LocalizedTextUtil global resource bundle loading from servletsserlvets?
• How do I add I18N to a UI tag, like the textfield tag?
• Can I add I18N outside the Action's context?
• How to support UTF-8 URIEncoding with Tomcat?
• How do I enable encoding in my forms?
• How to escape special chars in resource bundles?

Type Conversion

• How do I change the invalid input error message for a particular field?
• Why is the application logging a warning that the Compound Root cannot find a particular Object with a particular property?

Value Stack

• What are the default variables in the value stack?

Tags

• Why do the form tags put table tags around controls?
• How can I put a String literal in a Javascript call, for instance in an onChange attribute?
• Why won't the 'if' tag evaluate a one char string?
• Why does FreeMarker complain that there's an error in my user-directive when I used JSP Tag?
• Can an action tag run another method apart from the default execute method?
• Why didn't my action tag get executed when I have validation errors?
• Why are request parameters appended to our hyperlinks?
• Why doesn't the if tag evaluate test="#parameters.someParam ... " properly
• How do I render a single radio button?
• Why do I get a javax.el.ELException when using OGNL with JSP 2JSP2.1?
• Why can't I use JSTL-style EL expressions in Struts tags?
• How can I iterate over a range, like with JSTL's forEach tag?

POJOs

• Should the framework call getModel multiple times as a page renders?

Spring

• How can we create our Action objects from the Spring configuration?
• Why would we want to create Action objects from the Spring configuration?

Velocity

• I'm trying to run the example in the tutorial on Tomcat, and it can't instantiate the VelocityEngine

Ajax/Dojo

• IE showing a prompt saying "This page contains both secure and nonsecure items" when using dojo

Issues in Specific Environments

• Weblogic 8.1
• JRockit
• Multiple Struts 2 wars in a single ear
• Google App Engine (GAE)

Extensions

• Does the framework integrate with Hibernate?
• Can we use JSTL with the framework?
• Can we use JUnit with the framework?
• Can we use TestNG with the framework?
• How can we schedule Quartz jobs?
• Can we use Acegi Security with the framework?

Portlet Support(JSR168)

• Which portal servers are supported?
• How to build the portlet WAR for a specific portal server

Migrating

• Why is my action unavailable?