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From Laurie Harper <lau...@holoweb.net>
Subject Re: Map-backed ActionForms PLEASE HELP!!!!
Date Wed, 09 Nov 2005 23:28:34 GMT
Your 'setThing' and 'getThing' methods have inconsistent signatures. 
They need to comply with the JavaBeans specification. In particular, 
they both need to deal in the same value types -- so either change the 
type of the 'value' parameter to Object in setThing, or change the 
return type of getThing to String. I think that's your problem.

L.

Neil Mendoza wrote:
> OK, I'm climbing up the walls trying to make Struts populate a map-backed action form.
 This should be a simple task but I cannot get it to f*&king work and it is driving me
insane...  The reset method is called before the form is first displayed and the resulting
jsp is populated with the value set in the reset method, i.e. it's accessing the map correctly.
 However, when the form is submitted the reset is called again but the form bean is not populated
from the request before it gets to the action...
> 
> AAAAAAAAAAAAAAAAAAAAAAAAAAAaaaaaa....
> 
> ----------------------------------------------------
> Action Form class
> 
> import java.util.HashMap;
> import java.util.Map;
> 
> import javax.servlet.http.HttpServletRequest;
> 
> import org.apache.struts.action.ActionForm;
> import org.apache.struts.action.ActionMapping;
>  
> public class StrutsTestForm extends ActionForm  {
>  
> 	private Map things = new HashMap(); 
>     
>     public void setThing(String key, String value) {
>     		things.put(key, value);
>     }
>     public Object getThing(String key) {
>         return things.get(key);
>     }
>     
>     public void reset(
>     	    ActionMapping arg0, 
>     	    HttpServletRequest arg1) {
>     		setThing("name", "test");
>     		System.out.println("reset called");
> 
>     	  }
> }
> ------------------------------------------------------------
> form jsp
> 
> <%@ taglib uri="/tags/struts-bean" prefix="bean" %>
> <%@ taglib uri="/tags/struts-html" prefix="html" %>
> <html>
> <head>
> <title>Employee Form</title>
> </head>
> <body>
> <h1>Employee Form</h1>
> <html:form action="sta" focus="name" method="get">
> <table>
> <tr>
>     <td >Name:</td>
>     <td><html:text property="thing(name)"/></td>
> </tr>
> <tr>
>     <td>Age:</td>
>     <td><html:text property="thing(age)"/></td>
> </tr>
> </table>
> <html:submit>Submit</html:submit>
> </html:form>
> </body>
> </html>
> 
> -----------------------------------------------------------
> Action class
> 
> 
> package com.prytaniagroup.www;
> 
> import org.apache.struts.action.Action;
> import org.apache.struts.action.ActionForward;
> import org.apache.struts.action.ActionMapping;
> import org.apache.struts.action.ActionForm;
> //import org.apache.commons.
> import javax.servlet.http.HttpServletRequest;
> import javax.servlet.http.HttpServletResponse;
> 
> public final class StrutsTestAction extends Action {
>  
>     public ActionForward execute(ActionMapping mapping,
>                                  ActionForm form,
>                                  HttpServletRequest request,
>                                  HttpServletResponse response)
>         throws Exception {
>     			StrutsTestForm strutsTestForm = (StrutsTestForm)form;
>     			System.out.println((String)strutsTestForm.getThing("name"));
>         		System.out.println((String)strutsTestForm.getThing("age"));
>         		return (mapping.findForward("success"));
>     }
> }
> 
> ----------------------------------------------------------------------------------
> extracts from strusts-config.xml
> 
>  <form-beans>
>     
>         <form-bean
>             name="StrutsTestForm"
>             type="com.prytaniagroup.www.StrutsTestForm"/>
>     </form-beans>
> 
>   <action-mappings>
>            
> 	<action
>             path="/setupstrutstestform"
>             forward="/strutstestform.jsp"/>
> 
> 	<action
>             path="/sta"
>             type="com.prytaniagroup.www.StrutsTestAction"
>             name="StrutsTestForm"
>             scope="request"
>             validate="false">
>             
>             <forward name="success" path="/confirmation.jsp"/>
> 	</action>
>     
>     </action-mappings>
>  
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