In this example, I have declared a initialization parameter called “admin”. In the portlet ,I am reading all initialization parameter using Portlet Config Object
Portlet.xml
<?xml version="1.0" encoding="UTF-8"?>
<portlet-app xmlns="http://java.sun.com/xml/ns/portlet/portlet-app_2_0.xsd" version="2.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/portlet/portlet-app_2_0.xsd http://java.sun.com/xml/ns/portlet/portlet-app_2_0.xsd" id="com.jsr286tutorial.sixthexample.SixthExamplePortlet.c304d92233">
<portlet>
<portlet-name>PortletConfig</portlet-name>
<display-name xml:lang="en">PortletConfig</display-name>
<display-name>PortletConfig</display-name>
<portlet-class>com.jsr286tutorial.portletconfig.PortletConfig</portlet-class>
<init-param>
<name>admin</name>
<value>admin</value>
</init-param>
<init-param>
<name>wps.markup</name>
<value>html</value>
</init-param>
<expiration-cache>0</expiration-cache>
<supports>
<mime-type>text/html</mime-type>
<portlet-mode>view</portlet-mode>
</supports>
<resource-bundle>com.jsr286tutorial.portletconfig.nl.portletconfigResource</resource-bundle>
<portlet-info>
<title>PortletConfig</title>
<short-title>PortletConfig</short-title>
<keywords>PortletConfig</keywords>
</portlet-info>
</portlet>
<default-namespace>http://PortletConfig/</default-namespace>
</portlet-app>
In Portlet
package com.jsr286tutorial.portletconfig;
import java.io.*;
import java.util.Enumeration;
import javax.portlet.*;
/**
* This sample class is example of PortletConfig
*/
public class PortletConfig extends GenericPortlet {
public static final String JSP_FOLDER = "/_SixthExample/jsp/";
public static final String VIEW_JSP = "SixthExamplePortletView";
public void init() throws PortletException{
super.init();
}
public void doView(RenderRequest request, RenderResponse response) throws PortletException, IOException {
// Set the MIME type for the render response
response.setContentType(request.getResponseContentType());
Enumeration names=getPortletConfig().getInitParameterNames();
while(names.hasMoreElements())
{
String parametername=(String)names.nextElement();
String parametervalue=getPortletConfig().getInitParameter(parametername);
System.out.println(parametername+ "="+parametervalue);
}
// Invoke the JSP to render
PortletRequestDispatcher rd = getPortletContext().getRequestDispatcher(getJspFilePath(request, VIEW_JSP));
rd.include(request,response);
}
private static String getJspFilePath(RenderRequest request, String jspFile) {
String markup = request.getProperty("wps.markup");
if( markup == null )
markup = getMarkup(request.getResponseContentType());
return JSP_FOLDER + markup + "/" + jspFile + "." + getJspExtension(markup);
}
private static String getMarkup(String contentType) {
if( "text/vnd.wap.wml".equals(contentType) )
return "wml";
else
return "html";
}
private static String getJspExtension(String markupName) {
return "jsp";
}
}
Result:
Click here to download the sample code
