Actionform not populating JSP

[Syed Mahdi]

Hi All,

I have an actionform with getter setters for some fields. I set these fields into the (actionForm) form object in the action class's execute(). Then i do mapping.forward("tothesameJSP")

Whats happening is that I have some fields corresponding to the same action form but they dont get populated. I am assuming that when I set fields in an action form and do a forward through mapping.forward the form is also taken to the JSP and if the <html:text fields are there corresponding to the fields in the action form then they get populated. Am I right here?

What could i be doing wrong:

Also. is there a way to debug if the actionform coming from action back to JSP has the values that I have set in the action class?? like can i write a scriptlet or jsp tag to output the a property in the ><html:form> <sometag/> </html:form> tag

my action form is : decisionForm.java in struts its mapped in a <form-bean name=DecisionForm type=DecisionForm/>
there is an action where path=/decision name="DecisionForm" is also present, the html:from tag on jSP looks like this:
<html:form action="/decision" enctype="multipart/form-data" method="POST">


Any help will be appreciated

Thanks
Sar

[Alpesh Padra]

Please verify your form scope. if it is request then make it session for testing and verify it.

[Syed Mahdi]

thanks for the reply:

I did that as well.. changing the scope of the action mapping in struts-config.xml.. and then actually doing session.setAtribute("DecisionForm",decisionForm);


Actually what is happening is that the page does not get reloaded with new inputs.. i think the forward doesnt work somehow.

Here is what is happening.

I load this JSP, i select an option from dropdown and that selection reverts the request back to the DynaAction class's getDecision method which retrieves the decision object as per the selection and then populates the DecisionForm object and then does the forward to the same JSp..

   
<action
		path="/decision"
		type="com.mypackage.view.actions.DecisionAction"
		parameter="parameter"
		input="/agreement.jsp"
		name="DecisonForm"
		scope="request"
		validate="false">
		<forward name="add" path="/dataEntry/decision.jsp" />
		<forward name="populated" path="/dataEntry/decision.jsp" />
		<forward name="save" path="/dataEntry/decision.jsp" />
		<forward name="toDecision" path="/dataEntry/decision.jsp" />
		</action>
 

what I did then is that upon the first reload i copied the code of the method that forwards to jsp with the decisionform filled into the first method which only populates the dropdown and everything works fine but when i select the dropdown choice (and i debugged the java code) it goes into the assigned method in actionclass executes properly fills the form object and then does the forward so my code in action class is like that

   
/**
* first method to be called on the initial LOAD of the jsp which fills the dropdown with selections
*/
public ActionForward getMap(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) {
//get the values and fills the property that populates the dropdown on JSP
//get the first dicision object of the selection in dropdown to populate the corresponding fields in the JSP

return mapping.findForward("toDecision");

}//this method executes properly and fills the right fields and all


/**
*
*the second method to be called when the selection is made this method also executes properly fetchs the right data and eveything uptill the java code but when the forwrd is *executed the browser does not reload the page with new values
*/
public ActionForward fetchById(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) {


//get the decision pojo bean, fill the contents of the (DecisionForm)form object then do a mapping.forward
//return mapping.findForward("toDecision"); Tried this as well but this does nto reload the page either, 
return  mapping.findForward("populated");
}

 

[Syed Mahdi]

hi ,
Ok found what was wrong. It was somewhere I didnt realize it would ever be.

Anyways.. I had a javascript function called onchange of the dropdown which actually directed me to the actionclass's method

i was using jquery
$.post(url, {somevar:somevalue})

I didnot mention a callback method as in
$.post(url,{somevar:someval},myCallBackFunction)

and i should have a myCallBackFunction(){} defined as well thats why it was not loading anything

Anyways I removed the jquery thing and just used simple javascript

window.location=url to direct request to action class method
so i just did window.location='/decision.do?parameter=fetchById&somevar='+someval;

i anyone can tell me how to do the jquery thing that will be very neat as well. What i donot know is how to use the callback method to retreive the values or the form or fields in the form.

i think if i only set the form back in the document it should be enough but how to get the form from the parameters: of function myCallBackFunction(responseText, textStatus, XMLHttpRequest)
thanks in advance.
sqr