I've got a struts app in production and a couple users get this problem when
submitting a certain form. The error appears to be about tiles, but that
just doesn't seem logical, since why wouldn't everybody be getting the
error?
Before I post the error message, etc, I should point out that the key to
these users getting this error would seem to be a few fields on the form
that are hidden unless they click on a link to show them. The point being
is that they need to select a company and a contact person for the company.
The company is in a drop-down box and when a company is chosen, I populate
the contact drop-down box with the contacts for the selected company. But
if the contact they want isn't there, they can click on a link that then
allows them to enter the contact's name, phone and email. The contact
fields are conditionally validated upon submit for full name, proper
phone/email.
Like I say, it works most of the time, but the same 2 or 3 users keep
getting these problems. If they don't use the fields to add a contact, the
form will submit fine. If they do use the extra fields they get the error
as described...
The error message in the log is:
"
4/20/04 3:26 PM barts-web: Servlet error
javax.servlet.jsp.JspException: Error - tag.getAsString : component context
is not defined. Check tag syntax
at
org.apache.struts.taglib.tiles.GetAttributeTag.doEndTag(GetAttributeTag.java
:198)
at _jsp._layouts._layoutBase._jspService(_layoutBase.java:66)
at com.orionserver[Oracle9iAS (9.0.3.0.0) Containers for
J2EE].http.OrionHttpJspPage.service(OrionHttpJspPage.java:56)
at oracle.jsp.runtimev2.JspPageTable.service(JspPageTable.java:317)
at
oracle.jsp.runtimev2.JspServlet.internalService(JspServlet.java:465)
at oracle.jsp.runtimev2.JspServlet.service(JspServlet.java:379)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at com.evermind[Oracle9iAS (9.0.3.0.0) Containers for
J2EE].server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.j
ava:721)
at com.evermind[Oracle9iAS (9.0.3.0.0) Containers for
J2EE].server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDis
patcher.java:306)
at com.evermind[Oracle9iAS (9.0.3.0.0) Containers for
J2EE].server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:
767)
at com.evermind[Oracle9iAS (9.0.3.0.0) Containers for
J2EE].server.http.AJPRequestHandler.run(AJPRequestHandler.java:148)
at com.evermind[Oracle9iAS (9.0.3.0.0) Containers for
J2EE].server.http.AJPRequestHandler.run(AJPRequestHandler.java:72)
at
EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(PooledExecutor.ja
va:803)
at java.lang.Thread.run(Thread.java:479)
"
The error seems to be coming from the getAsString line in the layoutBase.jsp
page:
"<%@ page language="java" %>
<%@ taglib uri="/WEB-INF/tld/struts-html.tld" prefix="html" %>
<%@ taglib uri="/WEB-INF/tld/struts-bean.tld" prefix="bean" %>
<%@ taglib uri="/WEB-INF/tld/struts-tiles.tld" prefix="tiles" %>
<html:html>
<head>
<title>
<tiles:getAsString name="title"/>
</title>
...
"
My main tiles def'n is:
" <definition name=".layout.base" path="/jsp/layouts/layoutBase.jsp">
<put name="title" value="BARTS"/>
<put name="header" value="/jsp/common/header.jsp"/>
<put name="breadcrumb" value="/jsp/common/breadcrumb.jsp?bc="/>
<put name="errorsAndMessages"
value="/jsp/common/errors_and_messages.jsp"/>
<put name="nav" value="/jsp/common/menu.jsp"/>
<put name="nav_void" value="/jsp/common/void.jsp"/>
<put name="links" value="/jsp/common/links.jsp"/>
<put name="service" value="/jsp/common/service.jsp"/>
<put name="exit" value="/jsp/common/exit.jsp"/>
<put name="footer" value="/jsp/common/footer.jsp"/>
<put name="body" value="/jsp/body/sample.jsp"/>
</definition>
"
And the def'n in question is (I think):
"
<definition name=".projectForm" extends=".layout.base">
<put name="title" value="BARTS - Project"/>
<put name="body" value="/jsp/project/project_form.jsp"/>
<put name="nav" value="/jsp/common/menu.jsp?current=project"/>
<put name="breadcrumb"
value="/jsp/common/breadcrumb.jsp?bc=/projectSearch*showForm"/>
</definition>
"
Could their operating systems have anything to do with this? It was first
observed with users on NT boxes, but it just happened to one on XP. They're
all using IE version 6ish.
Here's the bit of the .jsp page that shows the extra form fields:
(contactBlock is either "none" or "block"
"
<!-- start of contact subform -->
<tr class="body" bgcolor="<bean:message key="style.proj.colour1"/>">
<td colspan="3" align="center">
<table id="contactForm"
style="display:<%=contactBlock%>;" width="90%" border="0" cellspacing="0"
cellpadding="0">
<tr>
<td colspan="3"
class="body"> </td>
</tr>
<tr class="body" bgcolor="<bean:message
key="style.proj.subformColour"/>">
<td width="34%"><bean:message
key="person.firstName"/>:</td>
<td width="3%">*</td>
<td width="63%"><html:text
property="clientContactFirstNameText" size="20" maxlength="50" /></td>
</tr>
<tr class="body" bgcolor="<bean:message
key="style.proj.subformColour"/>">
<td><bean:message
key="person.middleName"/>:</td>
<td></td>
<td><html:text
property="clientContactMiddleNameText" size="20" maxlength="50" /></td>
</tr>
<tr class="body" bgcolor="<bean:message
key="style.proj.subformColour"/>">
<td><bean:message
key="person.lastName"/>:</td>
<td>*</td>
<td><html:text
property="clientContactLastNameText" size="20" maxlength="50" /></td>
</tr>
<tr class="body" bgcolor="<bean:message
key="style.proj.subformColour"/>">
<td><bean:message
key="project.clientContactPhone"/>:</td>
<td>*</td>
<td><html:text
property="clientContactPhone" size="15" maxlength="25" />
<span class="note"><bean:message
key="common.phoneFormat" /></span></td>
</tr>
<tr class="body" bgcolor="<bean:message
key="style.proj.subformColour"/>">
<td><bean:message
key="project.clientContactEmail"/>:</td>
<td>*</td>
<td><html:text
property="clientContactEmail" size="30" maxlength="50" /></td>
</tr>
<tr>
<td colspan="3"
class="body"> </td>
</tr>
</table>
</td>
</tr>
<!-- end of contact subform -->
"
If you made it to here, thanks. If you have any ideas, please let me know.
I'm not sure how to go about this, since it has never failed for me here at
home on my development computer (XP). The logs don't tell me anything more
than that stack dump. I googled for the error I'm getting, but other folks
seem to get it when they're trying to implement tiles, not later on.
TIA,
Janice
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