I'm trying to use the Validator framework for client-side validation of a
multi-page form, but I can't get it work. At least not really ... Validation
works fine for the very first page, but for any other page the wrong
javascript-code is generated. No matter on which page I currently am, the
source-code always contains the javascript-code for validating the field(s)
from the very first page.
The main problem is that I don't really know where to increment/decrement
the page counter. I tried to add a hidden field with the page number of the
next page, so that I should at least be able to navigate forward, but that
didn't work. Setting the page number in the Action didn't work either.
Any ideas what I'm doing wrong?
WizardLookupDispatchAction:
---------------------------
public class WizardLookupDispatchAction extends LookupDispatchAction {
private int page = 1;
public WizardLookupDispatchAction() {
keyMethodMap = new HashMap();
keyMethodMap.put("button.prev", "doPrevious");
keyMethodMap.put("button.next", "doNext");
keyMethodMap.put("button.finish", "doFinish");
}
protected Map getKeyMethodMap() {
return keyMethodMap;
}
public ActionForward doPrevious(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response) throws Exception {
System.out.println("WizardLookupDispatchAction.doPrevious()");
this.page -= 1;
PropertyUtils.setSimpleProperty(form, "page", new Integer(page));
return mapping.findForward("previous");
}
public ActionForward doNext(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response) throws Exception {
System.out.println("WizardLookupDispatchAction.doNext()");
this.page += 1;
PropertyUtils.setSimpleProperty(form, "page", new Integer(page));
return mapping.findForward("next");
}
public ActionForward doFinish(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response) throws Exception {
System.out.println("WizardLookupDispatchAction.doFinish()");
return mapping.findForward("finish");
}
}
struts-config.xml:
------------------
<form-bean name="WizardForm" type="
org.apache.struts.validator.DynaValidatorForm">
<form-property name="username" type="java.lang.String" />
<form-property name="password" type="java.lang.String" />
<form-property name="ssn" type="java.lang.String" />
<form-property name="page" type="java.lang.Integer" initial="0" />
</form-bean>
<!-- Wizard mappings -->
<!-- Step 1 -->
<action path="/step1" name="WizardForm" scope="session" type="
org.apache.struts.actions.ForwardAction" parameter="/step1.jsp"
validate="false" />
<action path="/processStep1" name="WizardForm" scope="session"
type="WizardLookupDispatchAction" parameter="methodToCall" validate="false">
<forward name="next" path="/step2.do" />
</action>
<!-- Step 2 -->
<action path="/step2" name="WizardForm" scope="session" type="
org.apache.struts.actions.ForwardAction" parameter="/step2.jsp"
validate="false" />
<action path="/processStep2" name="WizardForm" scope="session"
type="WizardLookupDispatchAction" parameter="methodToCall" validate="false">
<forward name="previous" path="/step1.do" />
<forward name="next" path="/step3.do" />
</action>
<!-- Step 3 -->
<action path="/step3" name="WizardForm" scope="session" type="
org.apache.struts.actions.ForwardAction" parameter="/step3.jsp"
validate="false" />
<action path="/processStep3" name="WizardForm" scope="session"
type="WizardLookupDispatchAction" parameter="methodToCall" validate="false">
<forward name="previous" path="/step2.do" />
<forward name="finish" path="/wizard_done.jsp" />
</action>
validation.xml
--------------
<form name="WizardForm">
<field property="username" page="0" depends="required">
<arg0 key="prompt.username" />
</field>
<field property="password" page="1" depends="required">
<arg0 key="prompt.password" />
</field>
<field property="ssn" page="2" depends="required">
<arg0 key="prompt.ssn" />
</field>
</form>
stepX.jsp
---------
<html:javascript formName="WizardForm" />
<html:form action="/processStepX.do" method="post" onsubmit="return
validateWizardForm(this);">
<table class="form">
<tr>
<td colspan="2"><html:errors /></td>
</tr>
<tr>
<th>propertyX</th>
<td><html:text property="propertyX" /></td>
</tr>
<tr>
<td><html:submit property="methodToCall"><bean:message key='button.prev'
/></html:submit></td>
<td><html:submit property="methodToCall"><bean:message key='button.next'
/></html:submit></td>
</tr>
</table>
</html:form>
