On Fri, 18 Oct 2002, Ortega, Carlos wrote:
> Date: Fri, 18 Oct 2002 11:47:19 -0700 > From: "Ortega, Carlos" <[EMAIL PROTECTED]> > Reply-To: Struts Users Mailing List <[EMAIL PROTECTED]> > To: Struts Users Mailing List <[EMAIL PROTECTED]> > Subject: RE: WHY! Won't Form Classes Load > > SOLUTION! > > iPlanet 6.0 or (SUN ONE) cannot load any ActionForm objects you've > defined unless they "implements java.io.Serializable", otherwise the > servlet engine will give you the following silly error: > > >javax.servlet.ServletException: Exception creating bean of class > >[YourActionFormClassHere!] > It's always good to know what the underlying cause is. But I've got a question -- do you have a <distributable/> element in your web.xml file (indicating that your webapp is designed to work correctly in a distributed environment)? If so, this error is entirely appropriate -- and Tomcat will do the same thing to you -- because the servlet spec requires you to use only serializable session attributes if you declare your app to be distributable. If not, then it sounds like a container-specific restriction that should be documented in the guides for the server (as well as possibly mentioned in the Struts docs), because it would impact non-Struts apps as well. Craig > I've been working on this for days. I was pulling my hair out. Thank > God. I hope the good people at Sun will create a document outlining the > steps to get Struts working on their platform, since they state that > their server engine works with Struts. > > Thanks for all the previous suggestions. > > Best Regards, > Carlos Ortega > > > -----Original Message----- > From: David Graham [mailto:dgraham1980@;hotmail.com] > Sent: Wednesday, October 16, 2002 9:10 PM > To: [EMAIL PROTECTED] > Subject: Re: WHY! Won't Form Classes Load > > > Your relay action does the same thing as ForwardAction that comes with > struts, look at the docs for that. Why are you deploying a beta 1 version? > Why not beta 2? Does the struts example app work? If that doesn't work > then you've got container configuration issues. I always make sure the > example works before trying my own. > > I believe ActionForms only get created when there an action associated with > them is executed OR a jsp with the <html:form> tag is run. If neither of > these situations is occuring then the form bean won't exist. > > David > > >From: "Ortega, Carlos" <[EMAIL PROTECTED]> > >Reply-To: "Struts Users Mailing List" <[EMAIL PROTECTED]> > >To: <[EMAIL PROTECTED]> > >Subject: WHY! Won't Form Classes Load > >Date: Wed, 16 Oct 2002 20:32:17 -0700 > > > > > >It's four hours after I promissed my wife I'd be home and I'm sitting in > >the office scratching my head, wondering WHY struts won't load ActionForm > >classes. > > > >In a previous thread I mentioned that when I deploy a working beta 1 Struts > >application on iPlanet 6.0 and attempt to load a JSP that references any > >ActionForm I get the following silly error: > > > >javax.servlet.ServletException: Exception creating bean of class > >[YourActionFormClassHere!] > > > >The form bean is found, but cannot be loaded?!? It get's even more > >interesting. I discovered that if I bypassed the JSP page and called the > >".do" instead, in this case "logon.do", the form would actually load. The > >page had validation errors, as if the user had attempted to login without > >entering their user name and password. > > > >After mentioning this on a previous thread Greg wisely mentioned using the > >controller to front all of my JSPs. In other words, create an action class > >that I would call to access the JSPs. So I created a class named > >RelayAction, designed to accept a "forward" name as an argument. > >Unfortuneatly, using it resulted in the same error. Here's where the head > >scratching begins. Why was the form able to load when I called the > >"Logon.do" and fail when I used RelayAction? > > > >Long story short (and I may be too late), I discovered a key difference > >between the LogonAction and the RelayAction is how they are defined in > >struts-config.xml. Take a look at the two definitions: > > > >LogonAction > >------------------------------- > ><action > > path="/logon" > > name="logonForm" > > type="app.forms.LogonAction" > > scope="request" > > input="/logon.jsp"> > ></action> > > > >RelayAction > >------------------------------- > ><action > > path="/relay" > > type="app.forms.RelayAction"> > ></action> > > > >I now know that calling "Logon.do" was able to load the form because when > >LogonAction fails, it forwards control to the "input" page, which is set to > >"/logon.jsp" above. The LogonAction code that does this is below: > > > >if (!errors.empty()) { > > saveErrors(request, errors); > > return (new ActionForward(mapping.getInput())); > >} > > > >I don't understand why LogonAction class is able to load LogonForm using > >mapping.getInput() and the RelayAction cannot using mapping.findForward? > >They both return ActionForward. Can it be because there is a difference > >between mapping.getInput() and mapping.findForward()!? > > > >If you've got pointers, please point-on. I need help here. > > > >(going home now...) > > > >Carlos Ortega > > > > > >-- > >To unsubscribe, e-mail: > ><mailto:struts-user-unsubscribe@;jakarta.apache.org> > >For additional commands, e-mail: > ><mailto:struts-user-help@;jakarta.apache.org> > > > _________________________________________________________________ > Protect your PC - get McAfee.com VirusScan Online > http://clinic.mcafee.com/clinic/ibuy/campaign.asp?cid=3963 > > > -- > To unsubscribe, e-mail: <mailto:struts-user-unsubscribe@;jakarta.apache.org> > For additional commands, e-mail: <mailto:struts-user-help@;jakarta.apache.org> > > > -- > To unsubscribe, e-mail: <mailto:struts-user-unsubscribe@;jakarta.apache.org> > For additional commands, e-mail: <mailto:struts-user-help@;jakarta.apache.org> > > -- To unsubscribe, e-mail: <mailto:struts-user-unsubscribe@;jakarta.apache.org> For additional commands, e-mail: <mailto:struts-user-help@;jakarta.apache.org>
