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How to link portlets located on different pages in Liferay Portal

Gustavo Fernández
Gustavo Fernández

with the IPC (inter portlet communication)
, let’s go with an
example that explains how to create a link in one portlet that points
to another portlet located on a different page (editor’s note: wow!! –
editor’s hint: portlets are not pages)

To do this we have to use the tlds :


and the concepts of

plid: referenced page layout id
portletName: referenced
portlet name

The renderURL and the actionURL are tags provided by Liferay
that extend the standard tlds. Note: this kind of communication is not
part of the standard of the portlets JSR168 and JSR286.

  • The plid is the id of the page where we deploy one portlet, we can
    use LayOutLocalService to seek the id, or query it in the database directly.
  • The portletName is the identifier of the portlet and is part of
    the deployment descriptor of the portlet. This id is composed by
    portletId+_WAR_+thenameofwarthatencapsulatestheportlet and
    optionally the _INSTANCE_ if the portlet is instanciable.


If we have one portlet, and we use this tld into the jsp:

<liferay-portlet:renderURL plid="13605"
portletName="mynews_WAR_myresourcesportlet" var="prueba"></liferay-portlet:renderURL>

and this portlet creates a link to other portlet, in this case,
mynews_WAR_myresourcesportlet located in the page with plid 13605.
This link is a render link.

The next sample shows how to create an actionURL:

<liferay-portlet:actionURL name="newMyNew"
portletName="mynews_WAR_myresourcesportlet" var="prueba2"></liferay-portlet:actionURL>

We can also pass parameters:

<liferay-portlet:renderURL plid="13605"
portletName="mynews_WAR_myresourcesportlet" var="prueba">

  <liferay-portlet:param name="resourcePrimKey"
value="123456" />


If the plid is not used, the portal assumes that the portlets are
located into the same page.

Si te ha parecido interesante comparte este post en RRS


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