Get values from a checkbox list

[Julia Frattaglia]

Hi ppl, I need some help.


I have a page showing a list of movies previously inserted by the user and I want to make an action for removing the movies from the arraylist in which they are.



My mostraElenco.jsp is

 
...
<html:form action="/removeMovie">
	<p><logic:iterate name="listMovie" id="movie" ><p>
	   <html:multibox property="listMovie" value="movie">   
	Titolo: <bean:write name="movie" property="title"/> Regista: <bean:write name="movie" property="director"/> 
	Voto: <bean:write name="movie" property="voto"/> 
 	  </html:multibox> 
	  <br></p>
</logic:iterate>
<html:submit property="Submit">Remove movies</html:submit>
 </p> 
</html:form>  
...

My struts-config is

...
<action path="/showElenco" type="com.ibm.applicazionecinema.actions.ShowElencoAction" name="movie" scope="request" validate="false" input="/adminCentral.jsp" parameter="/mostraElenco.jsp">
			<forward name="success" path="/mostraElenco.jsp">
			</forward>
		</action>

<action path="/removeMovie" type="com.ibm.applicazionecinema.actions.RemoveMovieAction" name="movie" scope="request" input="/mostraElenco.jsp">
				<forward name="success" path="/outputRemove.jsp">
				</forward>
				<forward name="failure" path="/outputRemoveFalse.jsp">
				</forward>
			</action> 
...

And my RemoveMovieAction.java is

package com.ibm.applicazionecinema.actions;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionMessage;
import org.apache.struts.action.ActionMessages;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import com.ibm.applicazionecinema.forms.*;
import java.util.*;


public class RemoveMovieAction extends Action

{

	public RemoveMovieAction() {
		super();
	}
	
    public ActionForward execute(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response)
            throws Exception {

        ActionMessages errors = new ActionMessages();
        ActionForward forward = new ActionForward(); // return value
        Movie filmSingolo = new Movie();
        ListaFilm filmDaRimuovere = (ListaFilm) form;
        ArrayList<Movie> listaFilmDaRimuovere = filmDaRimuovere.lista;  
        
        try {


        	while (!listaFilmDaRimuovere.isEmpty()) {
        		filmSingolo = listaFilmDaRimuovere.remove(0);
        		ListaFilm.rimuoviFilm(filmSingolo);
        	}
               	//request.setAttribute("movie", film);

        	
        } catch (Exception e) {

            // Report the error using the appropriate name and ID.
            errors.add("name", new ActionMessage("id"));
            e.printStackTrace();

        }

        // If a message is required, save the specified key(s)
        // into the request for use by the <struts:errors> tag.

        if (!errors.isEmpty()) {
            saveErrors(request, errors);

            // Forward control to the appropriate 'failure' URI (change name as desired)
            	forward = mapping.findForward("failure");

        } else {

            // Forward control to the appropriate 'success' URI (change name as desired)
            forward = mapping.findForward("success");

        }

        // Finish with
        return (forward);

    }
}

ListaFilm is made like this

public class ListaFilm extends ActionForm {
	
                     public static ArrayList<Movie> lista;
...
}

what i get when i try to access to mostraElenco.jsp is

Error 500: javax.servlet.jsp.JspException: No getter method available for property listMovie for bean under name org.apache.struts.taglib.html.BEAN 

I know i shouldn't do this

ListaFilm filmDaRimuovere = (ListaFilm) form;
        ArrayList<Movie> listaFilmDaRimuovere = filmDaRimuovere.lista; 

since ListaFilm is static, I tried to do
ArrayList<Movie> filmDaRimuovere = (ArrayList<Movie>) form;
but I get errors since the compiler tells me that it can't convert from ActionForm form to ArrayList



Someone can help me?

[Richard Golebiowski]

1) The message error is obvious. It cannot find the getter for "listMovie". I don't even see where you have "listMovie" defined. Is it defined and made public in "ShowElencoAction"?
2) You don't do an array of forms. You need to do an array of "Movie".