• Struts tag
• Portlet tags
• URL generation SPIs

Struts tag

You can use the Struts tag, as follows:

<html:link action="/HelloAction">first 1</html:link>

<portlet:actionURL var="testUrl">
<portlet:param name="spf_ActionName" value="spf_ActionListener" />
<portlet:param name="spf_strutsAction" value="!2fHelloAction.do" />
</portlet:actionURL>

<a href="<%=testUrl %>">Second 1</a>

One thing to note here is that !2f is the encoded slash ( / ) character. If your action has more slash characters, then each one needs to be encoded. This option can be used only in the portlet and is best when you want to have some JavaScript in your portlet to submit an action.

<%
try{
HashMap map = new HashMap();
String[] value1 = {"spf_ActionListener"};
String[] value2 = {"!2fHelloAction.do"};
map.put("spf_ActionName", value1);
map.put("spf_strutsAction", value2);

String url1 = PortletURLHelper.generateUrl(ServletURLHelper.getCurrentPage(request,response), PortletURLHelper.getPortletWindowObjectId(renderRequest), map, renderRequest, renderResponse);

%>
<a href="<%=url1 %>">third 1 </a>
<%
}catch(Exception e)
{
%><%=e.getMessage()%>
<%
e.printStackTrace(System.out);
}
%>

To obtain the helper classes, go to "Portal 6.0 Advanced URL Generation Helper classes."