All of your code seems correct to me. The only other thing I think could possibly be wrong is if you have a separate "loader" action for your page 1 form, and that has the scope set to request instead of session.
Sorry I wasn't more help, but figured some ideas are better than none.
Matt
Mark Songhurst wrote:
Hi!
I'm having great pains getting DynaValidatorForm to validate only the "page=" attributed field elements in my validation.xml file.
It's the usual scenario: one DynaValidatorForm which is completed over
several JSP pages. I want validation to occur as each page is submitted, using the
Validator plugin.
However I receive the following NullPointerException when I submit the first page of my wizard:
2004-09-29 14:30:28 StandardWrapperValve[action]: Servlet.service() for servlet action threw exception java.lang.NullPointerException at org.apache.struts.validator.DynaValidatorForm.setPageFromDynaProperty(Dy naValidatorForm.java:142) at org.apache.struts.validator.DynaValidatorForm.validate(DynaValidatorForm .java:99) at org.apache.struts.action.RequestProcessor.processValidate(RequestProcess or.java:921) at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java: 206) at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1164) at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:415) at javax.servlet.http.HttpServlet.service(HttpServlet.java:709) at javax.servlet.http.HttpServlet.service(HttpServlet.java:802) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica tionFilterChain.java:237) {snip}
I am only attempting to get server side validation working at the moment. My browser has JavaScript disabled. I'm using Struts 1.2.4, I've not attempted to try this with Struts 1.1
I've added what I think are the relevant code snippets to the bottom of this mail - longer snippets are available if needed!
Please could anyone help, or point me to an online working example (with source!) that can get me past my problems?
Many Thanks in Advance,
Mark.
--------------------------------------------------- struts-config.xml:
<form-beans>
<!-- WizardForm form bean --> <form-bean name="WizardForm" type="org.apache.struts.validator.DynaValidatorForm"> <form-property name="page" type="java.lang.Integer"/> <form-property name="firstName" type="java.lang.String"/> {snip}
<!-- WizardPage1Submit --> <action path="/WizardPage1Submit" type="com.messagelabs.wizard.WizardBaseAction" name="WizardForm" input="/WEB-INF/web/WizardPage1.jsp" scope="session" validate="true"> <forward name="success" path="/WEB-INF/web/WizardPage2.jsp"/> </action>
{snip} ---------------------------------------------------
--------------------------------------------------- validation.xml:
<formset> <form name="WizardForm"> <field property="firstName" depends="required,maxlength" page="1"> <arg0 key="WizardForm.firstName.displayname"/> <arg1 key="${var:maxlength}" name="maxlength" resource="false"/> <var> <var-name>maxlength</var-name> <var-value>64</var-value> </var> </field> {snip} ---------------------------------------------------
--------------------------------------------------- wizardpage1.jsp:
<%@ page contentType="text/html;charset=UTF-8" language="java" %> <%@ taglib uri="/tags/struts-bean" prefix="bean" %> <%@ taglib uri="/tags/struts-html" prefix="html" %> <%@ taglib uri="/tags/struts-logic" prefix="logic" %>
<html:html> <head> <title><bean:message key="WizardPage1.title"/></title> <html:base/> </head> <body bgcolor="white">
<html:hidden property="page" value="1"/>
{snip} ---------------------------------------------------
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