That didn't seem to help either... I actually thought of that previously, I figured at some point there has to be some code casting an Object to a File object, otherwise certainly the getName() method call is going to fail. I tried again anyway, and it didn't help.
From: "Geeta Ramani" <[EMAIL PROTECTED]> Reply-To: "Struts Users Mailing List" <[EMAIL PROTECTED]> To: "Struts Users Mailing List" <[EMAIL PROTECTED]> Subject: RE: Some further newbie woes Date: Thu, 6 May 2004 15:28:14 -0400
None None: (or Someone Someone..;))
In fact maybe just adding the "type" attribute to your orignal iterate will work I think:
<logic:iterate id="drive" name="listDrivesForm" property="drives" type="java.io.File">
<tr><td><bean:write name="drive" property="name" /></td></tr>
</logic:iterate>
Regards, Geeta
> -----Original Message----- > From: Solley, Tim [mailto:[EMAIL PROTECTED] > Sent: Thursday, May 06, 2004 3:31 PM > To: Struts Users Mailing List > Subject: RE: Some further newbie woes > > > Hi None None... > > So in your JSP you are iterating over an ArrayList of File > objects, trying to get at a property inside the File objects. > To get at nested objects, you use the Struts nested tag library. > > Try replacing your <logic:iterate....> with the equivalent > from the nested library: (below off the top of my head) > > <nested:iterate id="drive" name="listDrivesForm" > property="drives" type="java.io.File"> > <nested:write name="drive" property="name"/> > </nested:iterate> > > See if you have luck with that. > > > > -----Original Message----- > From: None None [mailto:[EMAIL PROTECTED] > Sent: Thursday, May 06, 2004 2:16 PM > To: [EMAIL PROTECTED] > Subject: Some further newbie woes > > > Ok, I've banged my head enough in the past two hours... > > I'm working on a file manager Struts app to get myself > acquainted with > Struts. The first logical step is a list of drives. Here's > what I've > done... > > I have created an index.jsp that does a quick forward to > main.jsp (just like > the blank struts app does). In main.jsp I have a simple link to > listDrives.ofm (using extension mapping in this app). Here's my > struts-config.xml file, minus comments, linebreaks and the > XML & doctype > tags (to save space here)... > > <struts-config> > <form-beans> > <form-bean name="listDrivesForm" > type="com.omnytex.ofm.actionforms.ListDrivesForm" /> > </form-beans> > <global-forwards> > <forward name="main" path="/main.ofm" /> > </global-forwards> > <action-mappings> > <action path="/main" > type="org.apache.struts.actions.ForwardAction" > parameter="/jsp/main.jsp" /> > <action path="/listDrives" > type="com.omnytex.ofm.actions.ListDrivesAction" name="listDrivesForm" > scope="request" validate="false"> > <forward name="showDrivesList" path="/jsp/drivesList.jsp" /> > </action> > </action-mappings> > </struts-config> > > Simple enough. So, I click my link and the following ActionForm is > instantiated in request scope: > > package com.test.ofm.actionforms; > import org.apache.struts.action.*; > import java.io.*; > import java.util.*; > public class ListDrivesForm extends ActionForm { > private ArrayList drives = null; > public ListDrivesForm() { > drives = null; > } > public void setDrives(File[] inDrives) { > drives = new ArrayList(); > for (int i = 0; i < inDrives.length; i++) { > drives.add(inDrives[i]); > } > } > public ArrayList getDrives() { > return drives; > } > } > > Also simple enough. Next, the following action executes: > > package com.test.ofm.actions; > import org.apache.struts.action.*; > import java.io.*; > import javax.servlet.http.*; > import com.test.ofm.actionforms.*; > public class ListDrivesAction extends Action { > public ActionForward execute(ActionMapping mapping, > ActionForm form, > HttpServletRequest request, HttpServletResponse response) > throws Exception { > File[] drives = File.listRoots(); > ListDrivesForm ldf = (ListDrivesForm)form; > ldf.setDrives(drives); > return mapping.findForward("showDrivesList"); > } > } > > Now, to this point I am OK because if I do a simple println of > ldf.getDrives(), I in fact get a list of the drives on my system as > expected. So, I know my basic flow to this point is OK, and > I know the code > in the action is doing what I expect. Lastly, I have the > following JSP: > > <%@ page language="java" > import="java.io.*,com.omnytex.ofm.actionforms.*" %> > <%@ taglib uri="/WEB-INF/tld/struts-logic.tld" prefix="logic" %> > <%@ taglib uri="/WEB-INF/tld/struts-bean.tld" prefix="bean"%> > <html> > <head> > <title>File Manager</title> > </head> > <body> > File Manager > <br><hr><br> > <table border="1" cellpadding="0" cellspacing="0" width="100%"> > <logic:iterate id="drive" name="listDrivesForm" property="drives"> > <tr><td><bean:write name="drive" property="name" /></td></tr> > </logic:iterate> > </table> > </body> > </html> > > This is where the problem arises... My table is being built, > and the proper > number of rows are there, but I'm not seeing the drive letter being > displayed. I have verified that my listDrivesForm is present > and populated > by donig: > > <% > ListDrivesForm ldf = > (ListDrivesForm)request.getAttribute("listDrivesForm"); > System.out.println(ldf); > %> > > Sure enough, I see my drive list. Now, I've been playing > with various names > and ID combinations in the logic:iterate and bean:write tags, > but nothing > seems to make it work. I've also tried in place of bean:write: > > <tr><td><%=((File)drive).getName()%></td></tr> > > From my reading I expected that to work just as well. I've > also tried > adding the scope attribute to the bean:write tag to no avail. > > So, what am I doing wrong here? Do I need to do usebean here? Every > example I've seen of this never shows that, so I assume not. > Also, why > didn't the code manually calling getName() above not work > either? Even if I > needed useBean I would expect that to still work, which leads > me to believe > I DON'T need useBean. > > Any help is very much appreciated! > > _________________________________________________________________ > MSN Toolbar provides one-click access to Hotmail from any Web > page - FREE > download! http://toolbar.msn.com/go/onm00200413ave/direct/01/ > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > >
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