CODEWITHSUNDEEP
javaservletsportlet
Kliver Max
Kliver Max

Reputation: 5299

URLs in portlets

Hi guys can you tell me about URL in portlets. For example if i have myPortlet.java what i gonna do to call it from html form? I have to write line

<portlet-class>test.myPortlet</portlet-class>

in portlet.xml.

Im understand that in form i gonna use actionURL but how to build it?
Another question: Another java classes calls in portlet like in servlet?

Upvotes: 1

Views: 657

Answers (1)

david a.
david a.

Reputation: 5291

Depending on what do you want your portlet to do, you may use different URLs:

  • To trigger a call to processAction() method (thus change the state of your portlet), use the action URL. In a JSP included to your portlet's view you can obtain it by calling <portlet:actionURL />. In portlet code, one can get the URL by calling RenderResponse.createActionURL()
  • To get a URL that triggers a render request, use <portlet:renderURL/>. This will trigger a render of the portlet. Java API alternative is to call RenderResponse.createRenderURL()
  • If your portlet is a JSR-286 (portlet 2.0) compliant one, you can also use the <portlet:resourceURL /> tag to get a URL that triggers a call to serverResource() of your portlet. Similary to the above, there is also RenderResponse.createResourceURL().

All of the portlet tags belong to the portlet tag library - include it with <%@ taglib uri="http://java.sun.com/portlet" prefix="portlet" %>, and call <portlet:defineObjects /> on the top of your JSP).

Calls to RenderResponse.create*Url() methods return a PortletURL class and doing a toString() on them produces a string representation of the URL that can be included in markup produced by the portlet.

Both the portlet tags and PortletURL instances also allow to specify portlet mode and window state to use to render the responses (either by tag attributes or by setters defined in the PortletURL class).

For more, please see the spec.

Upvotes: 1

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