Struts + Portlets

[Gourav Sharma]

I want to transform a simple struts application to a portlet application.

I have searched in the net & got few docs but could not get the things working.Do we have any working example on the net or with someone.

can anyone help?asap.

Your help would be appreciated.Thanks.
[ October 11, 2007: Message edited by: Gourav Sharma ]

[Gourav Sharma]

I'm still waiting for some help while I have been trying to get it work.But in vain.

Your help would be appreciated.

Thanks.

[Cameron Wallace McKenzie]

Why did you not start on my webpage? All sorts of free and complete JSR-168 tutorials, all free, and nobody ever goes there! Maybe if I started charging people they'd take a bit more interest.

Here's a link to a full multimedia tutorial on developing a JSR-168 Struts portlet:

Full Tutorials, Start to Finish, on Creating a Struts Portlet for Portal Deployment

Here's the link to the completed Struts portlet so you can test it out yourself. It uses the JetSpeed 2.x bridge. You may have to swap the apache portlet bride out for JetSpeed, and put your own portal server bridge in:

Completed Struts Portlet War File for Download and Testing

There is also a tutorial on JSF Portlet Development, along with best practices, and a whole set of JSR168 portlet development tutorials as well.

And here's some code:

portlet.xml File for JSR-168 Struts Portlet
 
<?xml version="1.0" encoding="UTF-8"?>
<portlet-app
xmlns="http://java.sun.com/xml/ns/portlet/portlet-app_1_0.xsd"
version="1.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/portlet/portlet-app_1_0.xsd <a href="http://java.sun.com/xml/ns/portlet/portlet-app_1_0.xsd"" target="_blank" rel="nofollow">http://java.sun.com/xml/ns/portlet/portlet-app_1_0.xsd"</a>
id="RockPaperScissorsStrutsPortlet.1c7992b209">
 
<portlet id="RockPaperScissorsStrutsPortlet2.id99">
 
<description>RockPaperScissors 99</description>
<portlet-name>RockPaperScissors 99</portlet-name>
<display-name>RockPaperScissors 99</display-name>
<portlet-class>
org.apache.portals.bridges.struts.StrutsPortlet
</portlet-class>
<init-param>
<name>ServletContextProvider</name>
<value>
org.apache.jetspeed.portlet.ServletContextProviderImpl
</value>
</init-param>
<init-param>
<name>ViewPage</name>
<value>/index.mcnz</value>
</init-param>
 
<!-- you can add additional modes, such as help
<init-param>
<name>HelpPage</name>
<value>/help.mcnz</value>
</init-param>
end of commented out help mode -->
 
<expiration-cache>-1</expiration-cache>
<supports>
<mime-type>text/html</mime-type>
<portlet-mode>VIEW</portlet-mode>
<portlet-mode>HELP</portlet-mode>
</supports>
<portlet-info>
<title>RockPaperScissors</title>
<keywords>Struts</keywords>
</portlet-info>
</portlet>
</portlet-app>
 

 
web.xml File for Struts JSR-168 Portlet
 
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd">
<web-app id="WebApp_ID_0077">
<display-name>RockPaperScissorsStrutsPortlet 99</display-name>
<description>RockPaperScissorsStrutsPortletProject 99</description>
 

<servlet>
<servlet-name>action</servlet-name>
<servlet-class>org.apache.portals.bridges.struts.PortletServlet</servlet-class>
<init-param>
<param-name>config</param-name>
<param-value>/WEB-INF/struts-config.xml</param-value>
</init-param>
<init-param>
<param-name>debug</param-name>
<param-value>2</param-value>
</init-param>
<init-param>
<param-name>detail</param-name>
<param-value>2</param-value>
</init-param>
<load-on-startup>2</load-on-startup>
</servlet>
 
<servlet-mapping>
<servlet-name>action</servlet-name>
<url-pattern>*.mcnz</url-pattern>
</servlet-mapping>
 
<session-config>
<session-timeout>30</session-timeout>
</session-config>
 
<welcome-file-list>
<welcome-file>index.html</welcome-file>
</welcome-file-list>
 
</web-app>
 

 

 
Landing Page (index.jsp) for Struts JSR168 Portlet
 
<%@ page contentType="text/html"%>
<%@ taglib
uri="http://portals.apache.org/bridges/struts/tags-portlet-html"
prefix="html"%>
 
<TABLE border=0 cellSpacing=0 width="100%">
<TR>
<TD vAlign=top width=100%>
<html:form action="rpsaction">
What's it going to be? Rock, paper or scissors?
<html:text property="rpschoice"></html:text>
<input type="submit" name="submit" value="submit">
</html:form>
</TD>
</TR>
</TABLE>
struts-config.xml File for Struts Portlet
 
<?xml version="1.0" encoding="ISO-8859-1" ?>
 
<!DOCTYPE struts-config PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 1.1//EN"
"http://jakarta.apache.org/struts/dtds/struts-config_1_1.dtd">
 
<struts-config>
<form-beans>
 

<form-bean name="rpsform"
type="org.apache.struts.action.DynaActionForm">
<form-property name="rpschoice" type="java.lang.String" />
</form-bean>
 
</form-beans>
 
<action-mappings>
 

<action path="/rpsaction"
type="com.examscam.portlet.action.RockPaperScissorsAction"
name="rpsform" scope="request" validate="false" input="index.jsp">
 
<forward name="win" path="/win.jsp" redirect="true" />
<forward name="lose" path="/lose.jsp" redirect="true" />
<forward name="tie" path="/tie.jsp" redirect="true" />
</action>
 
<action path="/index" include="/index.jsp" />
<!-- CATALOG ACTIONS -->
 
</action-mappings>
 
<controller pagePattern="$M$P" inputForward="false"
processorClass="org.apache.portals.bridges.struts.PortletRequestProcessor" />
 
</struts-config>
 

 
win.jsp File forJSR-168 Struts Portlet
 

 
<%@ taglib uri="http://portals.apache.org/bridges/struts/tags-portlet-html" prefix="html" %>
<%@ page contentType="text/html"%>
 
<P>I chose rock. I WIN!!!</P>
 
lose.jsp File for JetSpeed JSR-168 Struts Portlet
 

<%@ taglib uri="http://portals.apache.org/bridges/struts/tags-portlet-html" prefix="html" %>
<%@ page contentType="text/html"%>
 

<P>Paper beats rock. YOU WIN!!!</P>
 
tie.jsp File for JSR-168 Struts Portlet
 

<%@ taglib uri="http://portals.apache.org/bridges/struts/tags-portlet-html" prefix="html" %>
<%@ page contentType="text/html"%>
 

<P>Rock is always a good call: TIE</P>
 

Action Class (Controller) Java Code for JSR-168 Struts Portlet
 
package com.examscam.portlet.action;
 
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
 
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.DynaActionForm;
 
public class RockPaperScissorsAction extends Action
 
{
 
public ActionForward execute(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response)
throws Exception {
 
ActionForward forward = new ActionForward();
DynaActionForm choiceForm = (DynaActionForm)form;
 

try {
 
String choice = (String)choiceForm.get("rpschoice");
System.out.println(choice);
if (choice.equalsIgnoreCase("rock")){
forward = mapping.findForward("tie");
}
if (choice.equalsIgnoreCase("paper")){
forward = mapping.findForward("lose");
}
if (choice.equalsIgnoreCase("scissors")){
forward = mapping.findForward("win");
}
 
} catch (Exception e) {
System.out.println(e.getMessage()+e.getClass());
forward = mapping.findForward("win");
}
return (forward);
 
}
}
 

struts-portlet-config.xml File for JSR-168 Struts Portlet
 
<?xml version="1.0" encoding="UTF-8"?>
 
<config>
<portlet-url-type>
<action path="/rpsaction" />
</portlet-url-type>
</config>    

[Gourav Sharma]

Thanks Cameron for your help.

I was involved with some urgent deliveries so I could not check the post.

I will surely give it a try after I finish my current deliveries.

Thanks once again for your herculean effort.