asked on

Trouble getting java variable to load in iframe src

I have two java variables that are determined when a user clicks a link. The variables are key identifiers and allow me to reference other database variables depending on which ones are selected. The link points to two iframes and loads them through the src attribute. The src contains references to the two key variables. I can verify that the link is properly sending the variables. But the iframe src lines are not receiving them because I am unable to get other information that is in the same record as the key references.

This is strange because I can use the exact same syntax in other methods for passing the variables. IE, A tags, form submits, etc. But it is not working in the iframe src.

Here is the first link that the user clicks to determine the variables using our java ap and our database.  You will see the two key variables in the href as page ID and layout ID.
 
<dl class="dropdown">
    <ul>
           <% 
             for (int i=0; i<ResponseBean.getSizeOfDynamicPages(); i++)
             {
                 %>
      <li><a class="underline" target="iframe_i_contain" href="<%= response.encodeURL("DynamicPagesEditServlet?action=&success=m1_dynamic_nav_contain.jsp&error="+ request.getServletPath()+"&"+com.ideaorbit.servlets.DynamicPagesEditServlet.HTTP_REQUEST_FIELD_KEY_ABOUT_PAGE_ID+"="+ResponseBean.getDynamicPagesID(i)+"&"+com.ideaorbit.servlets.DynamicLayoutsEditServlet.HTTP_REQUEST_FIELD_KEY_ABOUT_LAYOUT_ID+"="+ResponseBean.getSiteHomepageReference(i) ) %>"
   onclick="doBoth();"><%= ResponseBean.getDynamicPagesAlias(i) %></a></li>
 
           <% } %>
    </ul>
<div style="clear:both" />
 
 
 
Here is the onclick javascript.
 
<script type="text/javascript">
function doBoth() {
frames['iframe_i_nav'].location.href = '<%= response.encodeURL("DynamicPagesEditServlet?action=&success=m1_dynamic_nav1.jsp&error="+ request.getServletPath()+"&"+com.ideaorbit.servlets.DynamicPagesEditServlet.HTTP_REQUEST_FIELD_KEY_ABOUT_PAGE_ID+"="+ResponseBean.getDynamicPagesID(0)+"&"+com.ideaorbit.servlets.DynamicLayoutsEditServlet.HTTP_REQUEST_FIELD_KEY_ABOUT_LAYOUT_ID+"="+ResponseBean.getSiteHomepageReference(0) ) %>"';
}
</script>
 
 
Here is the iframe.  This iframe is a container which holds two more iframes.
 
<iframe name="iframe_i_contain" frameborder="0" width="100%" height="460" align="top" scrolling="no">
</iframe>
 
 
Here are the two iframes that the above iframe container holds.
 
<iframe name="iframe_i_nav2" scrolling="no" frameborder="0" width="100%" height="30" align="top" src="<%= response.encodeURL("DynamicLayoutsEditServlet?action=&success=m1_dynamic_nav2.jsp&error="+ request.getServletPath()+"&"+com.ideaorbit.servlets.DynamicLayoutsEditServlet.HTTP_REQUEST_FIELD_KEY_ABOUT_LAYOUT_ID+"="+ResponseBean.getSiteHomepageReference(0)+"&"+com.ideaorbit.servlets.DynamicPagesEditServlet.HTTP_REQUEST_FIELD_KEY_ABOUT_PAGE_ID+"="+ResponseBean.getDynamicPagesID(0) ) %>">
If you can see this, your browser does not support iframes!
</iframe>
<iframe name="iframe_i_edit" frameborder="0" width="100%" height="400" align="top" src="<%= response.encodeURL("DynamicLayoutsEditServlet?action=&success="+ResponseBean.getDynamicPagesTemplateReference(0)+"/editnone"+ResponseBean.getDynamicLayoutsLayout(0)+".jsp&error="+ request.getServletPath()+"&"+com.ideaorbit.servlets.DynamicLayoutsEditServlet.HTTP_REQUEST_FIELD_KEY_ABOUT_LAYOUT_ID+"="+ResponseBean.getSiteHomepageReference(0)+"&"+com.ideaorbit.servlets.DynamicPagesEditServlet.HTTP_REQUEST_FIELD_KEY_ABOUT_PAGE_ID+"="+ResponseBean.getDynamicPagesID(0) ) %>">
If you can see this, your browser does not support iframes!
</iframe>
 
If the layout ID and the page ID are correctly passed along, then the "getDynamicPagesTemplateReference" and the "getDynamicLayoutsLayout" will point to the correct data.
 
However, they ID variables are not making it to this point as when the container iframes load, it just loads the default values.  
 
Again, the above syntax is working in other places of my code, just not the iframes.
 
FYI, these are all JSP pages.  Thanks for any help.

Open in new window

Mick Barry

what does the generated html look like?

Mick Barry

you should be encoding the request param values

Mick Barry

eg.

<iframe name="iframe_i_edit" frameborder="0" width="100%" height="400" align="top" src="<%= response.encodeURL("DynamicLayoutsEditServlet?action=&success="+URLEncoder.encode(ResponseBean.getDynamicPagesTemplateReference(0)+"/editnone"+ResponseBean.getDynamicLayoutsLayout(0)+".jsp", "UTF-8")+"&error="+ ....

cosuamx

If I understand what you are trying to do is the following:
1. Dynamically generate links based on responseBean info for each page/link
2. The doBoth() script is set to be executed onclick for each link.
3. When user click on any link it should update the iframe and refresh the other two iframes.

I'm assuming inside the first iframe you are accesing the parameters you need via the responseBean. If the responseBean scope is request, the data you had from the top jsp will be lost since updating the iframe generates a separate request, hence you'll get whaterver default values you have. Since you are passing the parameters in the request (src path) of the main iframe you should just get the values for the required parameters for the internal iframes (inside the jsp containing the two iframes) using request.getParameter(...) instead to ensure you get the values passed on that request.