Heh.
Man, this took me a long time to figure out--I was looking in all the
wrong places. The short answer is that you need to use a different font.
The longer answer--check out the filename of your validation file.
Dave
Niklas Johansson wrote:
Hello,
Thanks for the information, but seriously, I think things are getting
just more complicated than needed now. As I mentioned, it does work
without AbstractValidationActionSupport. Just search Internet, there
are several examples.
This brings it all back to my problem. I been trying to find any
deviations from my working example I found on Internet with my own
implementation, can't find any difference. So please, can you see
anything that makes the validation not beeing applied? As mentioned,
when posting my empty form it invokes the action class, which it
shouldn't, it should react on the empty fields and return to the
client requesting before.
Dave, you mentioned something about using the default interceptor
stack. According to this page
http://www.struts2.org/form-validation-in-struts2-basic-server-side-validation-example/
it's not needed to define anything: "To use any of the predefined
validators, no initial configuration is needed. Validation is
implemented using a ValidationInterceptor which is configured in the
default interceptor stack." I haven't, intentionly at least, defined
any other validation interceptor stack. I am sure I would have
noticed...
Thanks again!
Regards,
Niklas
2009/5/27 Martin Gainty <mgai...@hotmail.com>:
--assuming you have this validation setup for your username from
/validation/fieldValidatorsExample.jsp
<validators>
<field name="requiredValidatorField">
<field-validator type="required">
<message><![CDATA[ required ]]></message>
</field-validator>
</field>
</validators>
referencong doc from
http://struts.apache.org/2.0.14/docs/using-field-validators.html
//the abstract class determines navigation and flow (input being the first page)
//success and or error being the end result
<package name="validationExamples" extends="struts-default"
namespace="/validation" >
<!-- ======================== -->
<!-- === Field Validators === -->
<!-- ======================== -->
<action name="showFieldValidatorsExamples"
class="org.apache.struts2.showcase.validation.FieldValidatorsExampleAction" method="input">
<result name="input"
type="dispatcher">/validation/fieldValidatorsExample.jsp</result>
</action>
<action name="submitFieldValidatorsExamples"
class="org.apache.struts2.showcase.validation.FieldValidatorsExampleAction" method="submit">
<result name="input"
type="dispatcher">/validation/fieldValidatorsExample.jsp</result>
<result
type="dispatcher">/validation/successFieldValidatorsExample.jsp</result>
</action>
<action name="submitFieldValidatorsExamples"
class="org.apache.struts2.showcase.validation.FieldValidatorsExampleAction" method="submit">
<result name="input"
type="dispatcher">/validation/fieldValidatorsExample.jsp</result>
<result
type="dispatcher">/validation/successFieldValidatorsExample.jsp</result>
</action>
//determing where dispatcher mapped to is defined here
<result-type name="dispatcher" class="org.apache.struts2.dispatcher.ServletDispatcherResult"
default="true"/>
/* <pre><!-- START SNIPPET: example -->
* <result name="success" type="dispatcher">
* <param name="location">foo.jsp</param>
* </result>
* <!-- END SNIPPET: example --></pre>
*
* This result follows the same rules from {...@link StrutsResultSupport}.
*
* @see javax.servlet.RequestDispatcher
*/
public class ServletDispatcherResult extends StrutsResultSupport {
private static final long serialVersionUID = -1970659272360685627L;
private static final Logger LOG =
LoggerFactory.getLogger(ServletDispatcherResult.class);
public ServletDispatcherResult() {
super();
}
public ServletDispatcherResult(String location) {
super(location);
}
/**
* Dispatches to the given location. Does its forward via a
RequestDispatcher. If the
* dispatch fails a 404 error will be sent back in the http response.
*
* @param finalLocation the location to dispatch to.
* @param invocation the execution state of the action
* @throws Exception if an error occurs. If the dispatch fails the error
will go back via the
* HTTP request.
*/
//if action returns input doExecute would take location of
/validation/fieldValidatorsExample.jsp and route to
//<result name="input"
type="dispatcher">/validation/fieldValidatorsExample.jsp</result>
public void doExecute(String finalLocation, ActionInvocation invocation)
throws Exception {
if (LOG.isDebugEnabled()) {
LOG.debug("Forwarding to location " + finalLocation);
}
PageContext pageContext = ServletActionContext.getPageContext();
if (pageContext != null) {
pageContext.include(finalLocation);
} else {
HttpServletRequest request = ServletActionContext.getRequest();
HttpServletResponse response = ServletActionContext.getResponse();
RequestDispatcher dispatcher =
request.getRequestDispatcher(finalLocation);
//add parameters passed on the location to #parameters
// see WW-2120
if (invocation != null && finalLocation != null &&
finalLocation.length() > 0
&& finalLocation.indexOf("?") > 0) {
String queryString =
finalLocation.substring(finalLocation.indexOf("?") + 1);
Map parameters = (Map)
invocation.getInvocationContext().getContextMap().get("parameters");
Map queryParams = UrlHelper.parseQueryString(queryString, true);
if (queryParams != null && !queryParams.isEmpty())
parameters.putAll(queryParams);
}
// if the view doesn't exist, let's do a 404
if (dispatcher == null) {
response.sendError(404, "result '" + finalLocation + "' not
found");
return;
}
// If we're included, then include the view
// Otherwise do forward
// This allow the page to, for example, set content type
if (!response.isCommitted() &&
(request.getAttribute("javax.servlet.include.servlet_path") == null)) {
request.setAttribute("struts.view_uri", finalLocation);
request.setAttribute("struts.request_uri",
request.getRequestURI());
dispatcher.forward(request, response);
} else {
dispatcher.include(request, response);
}
}
}
}
//ServletDispatcherResult only handles navigation
//we still dont know how this validation is achieved until we look at
/WEB-INF/classes/validators.xml
<!DOCTYPE validators PUBLIC
"-//OpenSymphony Group//XWork Validator 1.0.2//EN"
"http://www.opensymphony.com/xwork/xwork-validator-1.0.2.dtd";>
<validators>
<validator name="required"
class="com.opensymphony.xwork.validator.validators.RequiredFieldValidator"/>
how does the
FieldValidatorsExampleAction-submitFieldValidatorsExamples-validation.xml get
referenced?
To define validation rules for an Action, create a file named
ActionName-validation.xml
in the same package as the Action. You may also create alias-specific
validation rules which add to the default validation rules defined in
ActionName-validation.xml by creating another file in the same directory named
ActionName-aliasName-validation.xml. In both cases, ActionName is the name of
the Action class, and aliasName is the name of the Action alias defined in the
xwork.xml configuration for the Action.
The framework will also search up the inheritance tree of the Action
to find validation rules for directly implemented interfaces and parent
classes of the Action. This is particularly powerful when combined with
ModelDriven Actions and the VisitorFieldValidator. Here's an example of how
validation rules are discovered. Given the following class structure:
interface Animal;interface Quadraped extends Animal;class AnimalImpl implements
Animal;class QuadrapedImpl extends AnimalImpl implements Quadraped;class Dog
extends QuadrapedImpl;
The framework method will look for the following config files if Dog is to be
validated:
AnimalAnimal-aliasnameAnimalImplAnimalImpl-aliasnameQuadrapedQuadraped-aliasnameQuadrapedImplQuadrapedImpl-aliasnameDogDog-aliasname
While this process is similar to what the XW:Localization
framework does when finding messages, there are some subtle
differences. The most important difference is that validation rules are
discovered from the parent downwards.
//how do i enable ValidationInterceptor in my webapp?
<package name="example">
<interceptors>
<interceptor name="validator"
class="com.opensymphony.xwork.validator.ValidationInterceptor"/>
</interceptors>
a worthwhile read to understanding xwork validation framework is available
athttp://www.opensymphony.com/xwork/wikidocs/Validation%20Framework.html
Martin Gainty
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Date: Wed, 27 May 2009 06:18:36 -0400
From: newton.d...@yahoo.com
To: user@struts.apache.org
Subject: Re: SV: RequiredString Validation doesn't work and
AbstractValidationActionSupport is missing?
Niklas Johansson wrote:
P.S. AbstractValidationActionSupport doesn’t seem to be included in the
Struts2 (2.1.6) framework anyhow, couldn’t find it in any jar. But there are
quite a few so perhaps I missed it.
It's in the showcase application, like I said before.
Från: Martin Gainty [mailto:mgai...@hotmail.com]
do NOT extend ActionSupport as ActionSupport doesnt contain Field Validation
Lofic
Here's the source for AbstractValidationActionSupport:
public abstract class AbstractValidationActionSupport
extends ActionSupport {
public String submit() throws Exception {
return "success";
}
public String input() throws Exception {
return "input";
}
}
Please explain to us what you mean, both how the above method adds field
validation logic, and how ActionSupport doesn't.
Dave
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