Working with portlet container in websphere application server 7.0-Part9

This Example, Using public render parameter,  portlet communication between two portlets in Portet Aggregator Application is done.

MyPortletcoord.war (Aggregator Application)

Context Path: myportletcoord

<%@ taglib uri="http://ibm.com/portlet/aggregation" prefix="portlet" %>
<%@ page isELIgnored ="false"%>
<!-- define portal scope for public render parameters -->
<portlet:scope>
        <portlet:portlet context="/myjsrsender" portletname="MyJSR286Sender" windowId="stephan"/>
        <portlet:portlet context="/myjsrreceiver" portletname="MyJSR286Receiver" windowId="birga"/>
</portlet:scope>

<portlet:init portletURLPrefix="/myportletcoord/portal/">

<!-- insert your portlets here, wrapped with your html markup -->
...
   <portlet:insert url="myjsrsender/MyJSR286Sender" windowId="stephan" titleVar="portlettitle_1"/>
...
   <portlet:insert url="myjsrreceiver/MyJSR286Receiver" windowId="birga" titleVar="portlettitle_2"/>
...
</portlet:init>


MyJSR286Sender.war  (Sender Application)


Name of Portlet : MyJSR286Sender

Context path: myjsrsender


MyJSR286Sender.java

package com.ibm.myjsr286;
import java.io.*;
import javax.portlet.*;

public class MyJSR286Portlet extends GenericPortlet {

    .........
   
    public void processAction(ActionRequest request, ActionResponse response) throws PortletException, java.io.IOException {
        response.setRenderParameter("myname", request.getParameter("myname"));
    }
}

MyJSR286PortletView.jsp

<%@page session="false" contentType="text/html" pageEncoding="ISO-8859-1" import="java.util.*,javax.portlet.*,com.ibm.myjsr286.*" %>
<%@ taglib uri="http://java.sun.com/portlet_2_0" prefix="portlet"%>               
<portlet:defineObjects/>
Enter your Name<BR>
<form action='<portlet:actionURL/>'>
<input type="text" name="myname"/>
<input type="password" name="password"/>
<input type="submit" name="submit" value="submit"/>
</form>

portlet.xml

<portlet>

      <portlet-name>MyJSR286Sender</portlet-name>

       ...

       <supported-public-render-parameter>foo</supported-public-render-parameter>

   </portlet>

<public-render-parameter>

        <identifier>myname</identifier>

        <qname xmlns:x="http://MyJSR286/">x:name</qname>

    </public-render-parameter>

MyJSR286Receiver.war (Receiver Application)

Name of Portlet : MyJSR286Receiver

Context path: myjsrreceiver


MyJSR286ReceiverPortletView.jsp

<%@page session="false" contentType="text/html" pageEncoding="ISO-8859-1" import="java.util.*,javax.portlet.*,com.ibm.myjsr286receiver.*" %>
<%@ taglib uri="http://java.sun.com/portlet_2_0" prefix="portlet"%>        
<DIV style="margin: 6px">
<H3 style="margin-bottom: 3px">Welcome! ${param.myname}</H3>
</DIV>

portlet.xml

<portlet>

      <portlet-name>MyJSR286Receiver</portlet-name>

       ...

       <supported-public-render-parameter>foo</supported-public-render-parameter>

   </portlet>

<public-render-parameter>

        <identifier>myname</identifier>

        <qname xmlns:x="http://MyJSR286/">x:name</qname>

    </public-render-parameter>

ScreenShot

Click here to download the sample code.