In your Action, CommonEventHandler , you'll decide, based on tha value of a
certain field, which should be present in all your jsp and let's call it op,
what you should do . So for example
in your CommonEventHandler you'll have
public ActionForward execute(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response) throws Exception
{
GenForm gform = (GenForm)form;
String op = (String)gform.getValue("op");
if(op.equals("Signin")){
String login = (String)gform.getValue("login");
String password = (String)gform.getValue("password");
//do your stuff here
}else if(op.equals("Signout")){
......................................
}
}
So based on your op parameter you'll know what you have in your GenForm each
time you're executing CommonEventHandler.
That's a way to do it, but you could also have your CommonEventHandler extends
DispatchAction and implement this in a more clean way
Ovidiu
----- Original Message -----
From: "Agashivala, Vishal" <[EMAIL PROTECTED]>
To: "Struts Users Mailing List" <[EMAIL PROTECTED]>
Sent: Thursday, November 20, 2003 10:09 AM
Subject: RE: Map Backed Action Form
> Hi
> I have checked the URL which you have suggested but there I did not find the
> example of accessing a field value of form in Action class. It only gives to
> use it JSP via <html:text property="property(1)"/>.
> Can you give me some more information on the same?????
>
> Thanks and Regards,
> Vishal Agashivala
> Atos Origin India
> O: +91-22-5691 3870
>
>
> -----Original Message-----
> From: Ovidiu EFTIMIE [mailto:[EMAIL PROTECTED]
> Sent: Thursday, November 20, 2003 2:18 PM
> To: Struts Users Mailing List
> Subject: Re: Map Backed Action Form
>
>
> Look here
> http://puneetdelhi.tripod.com/
> Designing Screens For Variable Number Of Fields
>
>
> ----- Original Message -----
> From: "Agashivala, Vishal" <[EMAIL PROTECTED]>
> To: "Struts Users Mailing List" <[EMAIL PROTECTED]>
> Sent: Thursday, November 20, 2003 7:17 AM
> Subject: RE: Map Backed Action Form
>
>
> > First up all I like to thanks Rick since you have reply.
> Basically I am new
> > here..
> > I tried to give all the details-
> > Actually, I am trying to implement the common ActionForm
> which holds the
> > value of the JSP/HTML fields. So then I did not need to implement the
> > ActionForm for all my jsps. This ActionForm will pass it to
> common Action
> > Class that will be responsible to handle all the events. For
> of now I need
> > this much functionality.
> > To accomplish this I found out in the struts docs that you
> can use 'MAP
> > BACKED ACTIONFORM' so then I have tried that as follows-
> >
> > //Common ActionForm-
> > package com.web.controller;
> >
> > import java.util.Map;
> > import java.util.HashMap;
> > import java.util.Iterator;
> > import org.apache.struts.action.ActionForm;
> >
> > public class GenForm extends ActionForm
> > {
> > private final Map values = new HashMap();
> >
> > public void GenForm()
> > {
> > System.out.println("GenForm Constructor");
> > }
> > public void setValue(String key, Object value)
> > {
> > System.out.println("Keys=" + key + " ;value=" + value);
> > values.put(key, value);
> > }
> >
> > public Object getValue(String key) {
> > return values.get(key);
> > }
> > }
> >
> > //Common Action Class
> > package com.web.controller;
> > import java.lang.reflect.Field;
> > import java.lang.reflect.Method;
> > import java.lang.reflect.Modifier;
> > import java.util.Enumeration;
> > import javax.servlet.http.HttpServletRequest;
> > import javax.servlet.http.HttpServletResponse;
> >
> >
> > 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.struts.config.impl.ModuleConfigImpl;
> >
> > import com.web.controller.GenForm;
> >
> >
> > public class CommonEventHandler extends Action
> > {
> >
> > public ActionForward execute(ActionMapping mapping,
> ActionForm form,
> > HttpServletRequest request, HttpServletResponse response)
> throws Exception
> > {
> > System.out.println("reached here");
> >
> > if (form == null)
> > {
> > System.out.println("Action Form is null");
> > }
> > else
> > {
> > System.out.println("Action Form is Filled");
> >
> > }
> >
> > System.out.println(((GenForm)form).getValue("username"));
> > return null;
> > }
> >
> > //struts-config Entries
> > <form-beans>
> > <!-- Generic form bean -->
> > <form-bean name="GenForm"
> > type="com.web.controller.GenForm"/>
> > </form-beans>
> >
> > <action-mappings>
> > <action path="/button"
> > type="com.web.controller.CommonEventHandler"
> > name="GenForm"
> > scope="request"
> > validate="false"
> > input="login.jsp">
> > <forward name="failure" path="/mainMenu.jsp"/>
> > <forward name="success" path="/jsps/t.jsp"/>
> > </action>
> >
> > //Login JSP
> > <HTML>
> > <HEAD>
> > <TITLE>Login Page</TITLE>
> > </HEAD>
> > <BODY>
> > Login
> > <BR>
> > <FORM METHOD=POST ACTION="button">
> > Username:<INPUT TYPE="text" NAME="username">
> > Password:<INPUT TYPE="text" NAME="password">
> > <INPUT TYPE="submit" value="SignIn">
> > </FORM>
> > </BODY>
> > </HTML>
> >
> > Now, for of now I have not coded forward and all.. If in the
> Action Class, I
> > ll get fields value for username and password then I can go
> ahead. Control
> > has reached upto CommonEventHandler Action class but
> ActionForm has not
> > filled up with the username and password?
> >
> > So, now my questions are -
> > 1. Is am I on a right track???
> > 2. Is this possible in Struts Framework what I need?
> > 3. Is there any other way around or any other framwork which
> I can use to
> > accomplish my requirement?
> >
> > Kindly get back to me If you have any further queries.
> Expecting some one
> > will help me in this struts world.
> >
> > Thanks and Regards,
> > Vishal Agashivala
> >
> > -----Original Message-----
> > From: Rick Reumann [mailto:[EMAIL PROTECTED]
> > Sent: Wednesday, November 19, 2003 10:20 PM
> > To: Struts Users Mailing List
> > Subject: Re: Map Backed Action Form
> >
> >
> > Agashivala, Vishal wrote:
> >
> > > Hi
> > > Can anyone help me to implement MAP BACKED ACTION FORM???
> > > In this forum, I see 100 of mails but wht I am try to get
> > help on is not
> > > there..And NO ONE IS HERE TO HELP ME OUT?? AM I ASKING SOME
> > irrelevant info
> > > here?? If so atleast write to me so that i can think of other
> > way to work
> > > around..Atlest some one reply to my message
> > > Regards,
> >
> > Why don't you explain what you need help with? Like what you
> have tried
> > so far? What you want to accomplish? What isn't working?
> Anything would
> > be helpful to give us some direction. My first question would
> be why do
> > you want to back your form by a Map?
> >
> > --
> > Rick
> >
> >
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