struts-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Abraham Kang" <abrah...@infogain.com>
Subject RE: Problem finding classes after forward (resend)
Date Thu, 05 Apr 2001 18:06:40 GMT
Hi Scott,

This might be a problem with WebLogic.  I think this problem is prevelant in
WebLogic 5.1.  You might want to do a search on ClassCastException in the
WebLogic 5.1 docs and newsgroups.

--Abraham

> -----Original Message-----
> From: Scott Cressler [mailto:scott.cressler@propel.com]
> Sent: Thursday, April 05, 2001 8:50 AM
> To: 'struts-user@jakarta.apache.org'
> Subject: Problem finding classes after forward (resend)
>
>
> Many apologies for resending this, but I had not finished
> subscribing when I
> sent it the first time, and I don't know if it was, therefore,
> filtered out
> (since I didn't receive it ;-).
>
> Sorry, but I'm still having the problem described below:
>
> -----Original Message-----
> From: Scott Cressler
> Sent: Thursday, April 05, 2001 8:22 AM
> To: 'struts-user@jakarta.apache.org'
> Subject: Problem finding classes after forward
>
>
> I'm trying to refit an existing page to use struts.  The JSP page that I
> forward to at the end of my Action class uses some classes, but when
> forwarding to it through the struts ActionForward mechanism, the
> page seems
> unable to find the classes.  Strangely enough, one that it can't
> find is my
> form bean class, which it just used in the Action class.  I was trying to
> get to that class both through a <jsp:useBean> and through
> <jsp:getProperty>.  The exception I get is:
>
> java.lang.ClassCastException: com.propel.webapp.actions.AddressForm
> 	at _jsp._abe2__jsp._jspService(/abe2.jsp:26)
> 	at com.caucho.jsp.JavaPage.service(JavaPage.java:89)
> 	at com.caucho.jsp.JavaPage.subservice(JavaPage.java:83)
> 	at com.caucho.jsp.Page.service(Page.java:280)
> 	at com.caucho.jsp.QServlet.service(QServlet.java:161)
> 	at
> com.caucho.server.http.AbstractRequest.service(AbstractRequest.java:450)
> 	at
> com.caucho.server.http.AbstractRequest.service(AbstractRequest.java:393)
> 	at
> com.caucho.server.http.PageCache$Entry.service(PageCache.java:252)
> 	at com.caucho.server.http.PageCache.service(PageCache.java:103)
> 	at com.caucho.server.http.VirtualHost.service(VirtualHost.java:395)
> 	at
> com.caucho.server.http.QRequestDispatcher.forward(QRequestDispatch
er.java:14
> 7)
> 	at
> com.caucho.server.http.QRequestDispatcher.forward(QRequestDispatch
er.java:80
> )
> 	at
> org.apache.struts.action.ActionServlet.processActionForward(Action
Servlet.ja
> va:1697)
> 	at
> org.apache.struts.action.ActionServlet.process(ActionServlet.java:1540)
> 	at
> org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:491)
> 	at javax.servlet.http.HttpServlet.service(HttpServlet.java:102)
> 	at javax.servlet.http.HttpServlet.service(HttpServlet.java:83)
> 	at
> com.caucho.server.http.AbstractRequest.service(AbstractRequest.java:450)
> 	at
> com.caucho.server.http.AbstractRequest.service(AbstractRequest.java:393)
> 	at
> com.caucho.server.http.PageCache$Entry.service(PageCache.java:252)
> 	at com.caucho.server.http.PageCache.service(PageCache.java:103)
> 	at com.caucho.server.http.VirtualHost.service(VirtualHost.java:395)
> 	at com.caucho.server.http.Request.dispatch(Request.java:211)
> 	at
> com.caucho.server.http.HttpRequest.handleRequest(HttpRequest.java:201)
> 	at
> com.caucho.server.http.HttpRequest.handleConnection(HttpRequest.java:142)
> 	at com.caucho.server.TcpConnection.run(TcpConnection.java:145)
> 	at java.lang.Thread.run(Thread.java:484)
>
> This is happening at the useBean line:
>
> <jsp:useBean id="addressForm"
> class="com.propel.webapp.actions.AddressForm"
> scope="request" />
>
> I'm not sure why it's a ClassCastException, as that would seem to
> imply that
> the useBean found something under the property "addressForm", but that it
> was of the wrong class?
>
> I've also tried just adding scriptlet code to use a different
> class, but one
> that I know is in the classpath and is also in the WEB-INF/classes of the
> docroot.  I also get a ClassCastException from the following code:
>
> <%
>  PageHelper pageHelper = (PageHelper)request.getAttribute("pageHelper");
>  if (pageHelper == null) pageHelper = new PageHelper(request, response);
> %>
>
> I have the correct import above to find this class.
>
> The thing that leads me to think there's either a bug in struts or I'm
> missing something about how to use it is that this JSP page works
> fine if I
> just load it directly, that is, hitting it's URL directly.  The
> classes can
> be found just fine.
>
> Any ideas why this would be happening?  Is this a known bug with struts or
> am I just missing some configuration?
>
> We are using Resin standalone for our JSP/Servlet engine/web server.
>
> Thanks for any help,
> Scott
>


Mime
View raw message