linking jsp pages in a liferay portlet

[Eoin Mac Aoidh]

I am trying to make a very basic portlet where 1 jsp page links to another. Nothing more. I create a war file and deploy in liferay. The portlet displays fine. The problem is that the pages I try to link to can not be found. For example,
When the portlet loads, page1.jsp is displayed. It contains the code:

  
Hello Page one <BR>
<A >go to page2.jsp</A>

page1.jsp and page2.jsp are both located in the same place, the WebContent folder.

When I click on the link which I expect will load page1 in the portlet, I get the error:

The requested resource was not found: http://xxx.xxx.x.xx/web/guest/page2.jsp

My portlet.xml file to initialize the portlet contains the code:

   
<init-param>
	<name>view-jsp</name>
	<value>/page1.jsp</value>
</init-param>
 

As page1 and page2 are both in the same directory, I am puzzled why page2 can not be found.
Perhaps there is some directory or context structure I should be specifying in the portlet.xml file?

Any help greatly appreciated.
Thanks
e

[Tim McGuire]

this is a common question.

In your case, it is looking for page2.jsp in the whole portal (as you might see from the address bar after you click that link)

to make it link to and find page2.jsp within your portlet, use the portlet tags that come with javax.portlet:

<a href="<portlet:renderURL><portlet:param name="jspPage" value="/page2.jsp" /></portlet:renderURL>" />Click here for page 2</a>

[Julian Hee]

Hi,
I have similar problems using links in portlets.
Do I need to change anything in doView() or processAction method after using the renderURL in the _view.jsp
In which folder does the "page2.jsp" have to be in when using value="/page2.jsp"?

I have searched for a while for any working solution but I didn`t get it by now..
thanks

[jrthor2]

I have the same issue when trying to link to a page that is in a subfolder. How can this be done? I have a Spring portlet in Liferay I'm trying to link to. here is the code I have:

    
[@portlet.renderURL var="rules"]
	[@portlet.param name="action" value="subdirectory/test"/]
[/@portlet.renderURL]
<a >test link</a>

Thanks

[Tim McGuire]

Julian Hee wrote:Hi,
I have similar problems using links in portlets.
Do I need to change anything in doView() or processAction method after using the renderURL in the _view.jsp
In which folder does the "page2.jsp" have to be in when using value="/page2.jsp"?

I have searched for a while for any working solution but I didn`t get it by now..
thanks

Hi Julian,

here is my doView method:

public void doView(
			RenderRequest renderRequest, RenderResponse renderResponse)
		throws IOException, PortletException {
			String pageToRender = "";
			if(renderRequest.getParameter("jspPage") != null){
				pageToRender = (String)renderRequest.getParameter("jspPage");
			} 
		if(pageToRender .equals("page-two-jsp")){
			include(page2JSP, renderRequest, renderResponse);

		} else {
			include(viewJSP, renderRequest, renderResponse);
		}
	}

viewJSP and page2JSP are simply strings that end up being
/page-two.jsp
and
/view.jsp

respectively

if page-two were in a child folder, then the value of page2JSP should be "/childFolder/page-two.jsp"

[Julian Hee]

Hi,
thanks for you response...but it doesnt work :/

In my view.jsp i got this link

 <a href="<portlet:renderURL><portlet:param name="jspPage" value="/WEB-INF/jsp/neu.jsp" /></portlet:renderURL>" /><input type="button" value="Neu"></input></a>      

my original doView looks like this

  public void doView(RenderRequest request, RenderResponse response)
			throws PortletException, IOException {

		response.setContentType("text/html");
		
        PortletRequestDispatcher dispatcher =
	        getPortletContext().getRequestDispatcher("/WEB-INF/jsp/PublikationsManager_view.jsp");
        dispatcher.include(request, response);
		
	}  

i changed it to:

 String pageToRender = ""; 
	public void doView(RenderRequest request, RenderResponse response)
			throws PortletException, IOException {

		response.setContentType("text/html");
		 
		 if(request.getParameter("jspPage").equals(null) ){  
		              this.pageToRender = "/WEB-INF/jsp/PublikationsManager_view.jsp";
			         } 
		 else{
			 this.pageToRender = request.getParameter("jspPage");
		 }
	    PortletRequestDispatcher dispatcher =
	        getPortletContext().getRequestDispatcher(pageToRender);
	    dispatcher.include(request, response);   

My folder structure is somethin like this:
Project
- Java Sources
-classes
- WebContent
-Web-Inf
-jsp
-new.jsp
-view.jsp
.....


Probably its quite simple but I dont get it.. do i have do change something in processAction()..or whats the problem...
thanks

[Tim McGuire]

Julian Hee wrote:

 <a href="<portlet:renderURL><portlet:param name="jspPage" value="/WEB-INF/jsp/neu.jsp" /></portlet:renderURL>" /><input type="button" value="Neu"></input></a>      

My folder structure is somethin like this:
Project
- Java Sources
-classes
- WebContent
-Web-Inf
-jsp
-new.jsp
-view.jsp

the root of your web content is where your jsps should be. Try putting them in the webContent directory.

I notice that you are creating the parameter in your init-params in portlet.xml, you can instead use view-jsp or new-jsp in as the value in the renderURL tag as these are defined already. in the jspPortlet.java, these have to be brought in with the init method:

	public void init() throws PortletException {
		editJSP = getInitParameter("edit-jsp");
		helpJSP = getInitParameter("help-jsp");
		viewJSP = getInitParameter("view-jsp");
	}

but maybe it is more clear to just use the string "/jsp/new.jsp"

Note that using the liferay plugins sdk will make all this much easier as it sets up your directory structure, xml files, and java files, allowing you to deploy easiliy with ant commands. Check it out, you will be thankful.