//instead of creating a whole new page would'nt it be easier to populate the
changed items
//and use an ajax control to dynamically populate a div tag on the jsp page?
<action name="getNodes"
class="org.apache.struts2.showcase.ShowAjaxDynamicTreeAction">
<result
type="freemarker">/tags/ui/treeExampleAjaxDynamic.ftl</result>
</action>
package org.apache.struts2.showcase;
import org.apache.struts2.showcase.ajax.tree.Category;
import com.opensymphony.xwork2.ActionSupport;
public class ShowAjaxDynamicTreeAction extends ActionSupport {
private int nodeId = 1;
public Category getCategory() {
return Category.getById(nodeId);
}
public int getNodeId() {
return nodeId;
}
public void setNodeId(int nodeId) {
this.nodeId = nodeId;
}
}
<%...@taglib prefix="s" uri="/struts-tags" %>
<%@ taglib prefix="sx" uri="/struts-dojo-tags" %>
<html>
<head>
<title>Showcase - UI Tag Example - Tree Example (Dynamic)</title>
<sx:head />
</head>
<body>
<s:url var="nodesUrl" namespace="/nodecorate" action="getNodes" />
<div style="float:left; margin-right: 50px;">
<sx:tree id="tree" href="%{#nodesUrl}" />
</div>
</body>
</html>
//just supply category and NodeId from from ShowAjaxDynamicTreeAction Action
?
Martin Gainty
______________________________________________
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> Date: Mon, 24 May 2010 08:40:39 -0700
> From: patelsame...@yahoo.com
> To: user@struts.apache.org
> Subject: RE: XML file reloading in JSP (Caching issue)
>
>
> I just did.
>
> No luck. :-(
>
> Thanks for the idea.
>
>
> sandeep.furia wrote:
> >
> > how about if you change the location of the xml file, take it out of
> > web-inf and put it under the context root?
> >
> > SDF/
> > -----Original Message-----
> > From: XML User [mailto:patelsame...@yahoo.com]
> > Sent: Monday, May 24, 2010 11:16 AM
> > To: user@struts.apache.org
> > Subject: Re: XML file reloading in JSP (Caching issue)
> >
> >
> > Thanks for quick reply Brian.!
> >
> > I tried adding new timestamp as parameters which generates new number
> > everytime I visit the page.
> >
> > Even added those headers setting for no cache...
> > <meta http-equiv="Cache-Control" content="no-store"/>
> > <meta http-equiv="Pragma" content="no-cache"/>
> > <meta http-equiv="Expires" content="0"/>
> >
> > Still it is not getting updated.
> >
> >
> > Brian Thompson-5 wrote:
> >>
> >> What extra parameters have you added to the request? AFAIK the
> >> standard solution to this type of "improper caching" problem is to
> >> simply append a random number or a timestamp to the request URL. It's
> >> an ugly hack, but it does work even when the headers don't seem to do
> >> the trick.
> >>
> >> Of course, the "Right Way" is to rely on the no-cache headers, so you
> >> might want to do a bit more troubleshooting on that front.
> >>
> >> Hope this helps,
> >>
> >> -Brian
> >>
> >>
> >>
> >> On Mon, May 24, 2010 at 9:44 AM, XML User <patelsame...@yahoo.com>
> > wrote:
> >>>
> >>> Hi,
> >>>
> >>> I am running into an issue of caching.
> >>>
> >>> I have a jsp which generates the tree view from an XML file. This XML
> >>> file
> >>> are loaded when the jsp is loaded. So whenever I add new child to the
> >>> tree
> >>> view the xml file is updated by action class and the request reloads
> > the
> >>> jsp
> >>> page which in turns reload that updated XML file.
> >>>
> >>> The issue is everytime it reloads the XML file, it gets from the
> >>> temporary
> >>> internet file which is not getting updated until I kill the browser
> > and
> >>> reload it.
> >>>
> >>> For example.
> >>>
> >>> For the first time, I have the xml file with content
> >>> .Parent 1
> >>> ...Child 1
> >>> ...Child 12
> >>> ...Child 13
> >>> .Parent 2
> >>> ...Child 2
> >>> ...Child 21
> >>>
> >>> When I call the action,to show tree then it calls the jsp file which
> >>> loads
> >>> the XML file and shows the jsp tree which works perfectly. Shows
> > complete
> >>> tree view based on XML file.
> >>>
> >>> Then I will add new child "Child 22" into ".Parent 2" then the action
> >>> will
> >>> be called and that action will update the XML file which is located
> > into
> >>> "../WEBINF/pages" and returns to the same jsp and reloads jsp which
> > also
> >>> needs to reloads the updated XML file.
> >>>
> >>> Now issue is , its not reloading that updated XML file and still
> > showing
> >>> the
> >>> tree without newly added child. When I checked internet temporary
> > files,
> >>> it
> >>> was still old XML file but at "../WEBINF/pages" location, the XML has
> >>> been
> >>> updated. So I figured out that it is an issue of caching.
> >>>
> >>> I tried to remove caching with http headers setting
> >>> <%
> >>> response.setHeader("Cache-Control","no-cache"); //HTTP 1.1
> >>> response.setHeader("Pragma","no-cache"); //HTTP 1.0
> >>> response.setDateHeader ("Expires", 0); //prevents caching at the
> > proxy
> >>> server
> >>> %>
> >>>
> >>> Also tried with adding extra parameters to change the URL request.
> >>>
> >>> But still doen't work.
> >>>
> >>> Anyone has any suggestions, what to do next.
> >>>
> >>> Thanks for your help.
> >>>
> >>> Sorry.., If any typos or explained in too much detail.
> >>> --
> >>> View this message in context:
> >>>
> > http://old.nabble.com/XML-file-reloading-in-JSP-%28Caching-issue%29-tp28
> > 657737p28657737.html
> >>> Sent from the Struts - User mailing list archive at Nabble.com.
> >>>
> >>>
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