portlet tutorial, struts portlet with action class, liferay portal tutorial, struts portlet action

Irshad Mansuri

Attune Infocom
----------------------------------------------------------------------------------
===============================================================3. Struts Portlet with action class.
===============================================================

(update the below 2 xml files)

3.1. struts-config.xml
----------------------

(add a new action)

<action path="/ext/library/add_book" type="com.ext.portlet.library.action.AddBookAction">
<forward name="portlet.ext.library.view" path="portlet.ext.library.view" />
<forward name="portlet.ext.library.success" path="portlet.ext.library.success" />
<forward name="portlet.ext.library.failure" path="portlet.ext.library.failure" />
</action>

3.2. tiles-defs.xml
-------------------

(add two more definitions)

<definition name="portlet.ext.library.failure" extends="portlet.ext.library">
<put name="portlet_content" value="/portlet/ext/library/failure.jsp" />
</definition>

<definition name="portlet.ext.library.success" extends="portlet.ext.library">
<put name="portlet_content" value="/portlet/ext/library/success.jsp" />
</definition>

3.3. init.jsp
-------------

(remove the text line added earlier, keeping just the below include directive)

<%@ include file="/html/portlet/init.jsp" %>









3.4. view.jsp
-------------

(modify this file)

<%@ include file="/html/portlet/ext/library/init.jsp" %>

<%
PortletURL actionURL = renderResponse.createActionURL();
actionURL.setWindowState(WindowState.MAXIMIZED);
actionURL.setParameter("struts_action", "/ext/library/add_book");
%>

Add a book entry to the library:
<br/>

<form action="<%= actionURL.toString() %>" method="POST" name="<portlet:namespace />fm">

Book Title:

<input type="text" name="<portlet:namespace />book_title" /><br/><br/>

<input type="submit" value="Add Book"/>
</form>

3.5. success.jsp
----------------

<%@ include file="/html/portlet/ext/library/init.jsp" %>
<%
String bookTitle = request.getParameter("book_title");
%>

<table align="center" cellspacing="10" cellpadding="3">
<tr>
<td style="font-weight:bold">Book Title: </td>
<td><%= bookTitle %></td>
</tr>
</table>

3.6. failure.jsp
--------------

<%@ include file="/html/portlet/ext/library/init.jsp" %>
<font color="red">Error in page...</font>
3.7. AddBookAction.java
-----------------------

(location: ext/ext-impl/src/com/ext/portlet/library/action/AddBookAction.java)

package com.ext.portlet.library.action;

import javax.portlet.ActionRequest;
import javax.portlet.ActionResponse;
import javax.portlet.PortletConfig;
import javax.portlet.RenderRequest;
import javax.portlet.RenderResponse;

import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;

import com.liferay.portal.struts.PortletAction;
import com.liferay.portal.kernel.util.Validator;

public class AddBookAction extends PortletAction {

public void processAction(
ActionMapping mapping, ActionForm form, PortletConfig config,
ActionRequest req, ActionResponse res)
throws Exception {

String bookTitle = req.getParameter("book_title");

if (Validator.isNull(bookTitle)) {
setForward(req, "portlet.ext.library.failure");
} else {
setForward(req, "portlet.ext.library.success");
}
}

public ActionForward render(ActionMapping mapping, ActionForm form,
PortletConfig config, RenderRequest req, RenderResponse res)
throws Exception {
if (getForward(req) != null && !getForward(req).equals("")) {
return mapping.findForward(getForward(req));
} else {
return mapping.findForward("portlet.ext.library.view");
}
}
}












Check the Library Portlet is updated.

Exercise:

. From the success and failure pages, give a link to come back to the view page.

HINT:
To have link in Liferay Portel use following tag in both success and failure jsp pages

<table>
<tr>
<a href="<portlet:renderURL ><liferay-portlet:param name="struts_action" value="/ext/library/view"/></portlet:renderURL>">
Back</a>
</tr>
</table>







---------------------------------------------------------

Attune Infocom Inc.
911 S. Wa Pella Ave
Mount Prospect Illinois 60056
Email: sales@attuneinfocom.com
Telephone: +1-732-703-9847

 -------------------------------------------------------

Attune Infocom Pvt. Ltd.
Ground Floor G-2, Aakruti Complex,
Above Stadium Under Bridge,
Navrangpura, Ahmedabad - 380009
Gujarat, India
Email: contact@attuneinfocom.com
Telephone: +91-79-40047256 /7 /8

__________________________________________

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Code Snippets for various examples.

Prepared by Aasif and Ahmed under the guidance of Irshad Mansuri

Attune Infocom
----------------------------------------------------------------------------------
===============================================================2. Simple Struts Portlet

2.1. portlet-ext.xml
--------------------
<portlet>
<portlet-name>library</portlet-name>
<display-name>library Portlet</display-name>
<portlet-class>com.liferay.portlet.StrutsPortlet</portlet-class>
<init-param>
<name>view-action</name>
<value>/ext/library/view</value>
</init-param>
<expiration-cache>0</expiration-cache>
<supports>
<mime-type>text/html</mime-type>
</supports>
<resource-bundle>com.liferay.portlet.StrutsResourceBundle</resource-bundle>
<security-role-ref>
<role-name>power-user</role-name>
</security-role-ref>
<security-role-ref>
<role-name>user</role-name>
</security-role-ref>
</portlet>

2.2. liferay-portlet-ext.xml
----------------------------
<portlet>
<portlet-name>library</portlet-name>
<struts-path>ext/library</struts-path>
<use-default-template>false</use-default-template>
</portlet>

2.3. liferay-display.xml
------------------------

add

<portlet id="library" />

inside

<category name="category.example">

2.4. struts-config.xml
----------------------
<action path="/ext/library/view" forward="portlet.ext.library.view" />

2.5. tiles-defs.xml
-------------------
<definition name="portlet.ext.library" extends="portlet" />
<definition name="portlet.ext.library.view" extends="portlet.ext.library">
<put name="portlet_content" value="/portlet/ext/library/view.jsp" />
</definition>


(create the following two jsp files under "/ext/ext-web/docroot/html/portlet/ext/library")

2.6. init.jsp
-------------
<%@ include file="/html/portlet/init.jsp" %>
<p>Add commonly used variables and declarations here!</p>

2.7. view.jsp
-------------
<%@ include file="/html/portlet/ext/library/init.jsp" %>
Simple Struts Portlet!

2.8 Language-ext.properties
---------------------------

Add a new entry in the above file,
javax.portlet.title.library=library Portlet

2.9 Deploy and verify
---------------------

run "ant deploy" from ext to move all the changes we have done so far both under "ext-web" and "ext-impl"

Restart the server and check the new library portlet is working perfectly fine.

This portlet will be the basis for all other concepts we are going to learn in the subsequent chapters.

All the best !!

Check that Library Portlet is available under Training Categroty.

Check out that Library Portlet is added successfully.

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Code Snippets for various examples.

Prepared by Aasif and Ahmed under the guidance of Irshad Mansuri

Attune Infocom pvt. ltd.
----------------------------------------------------------------------------------

===============================================================
1.Basic JSP Portlet
===============================================================

[the xml files are located under "ext/ext-web/docroot/WEB-INF"]

1.1. portlet-ext.xml
--------------------

(insert the below content)

<portlet>
<portlet-name>EXT_2</portlet-name>
<display-name>JSP Portlet Introduction</display-name>
<portlet-class>com.liferay.util.bridges.jsp.JSPPortlet</portlet-class>
<init-param>
<name>view-jsp</name>
<value>/html/portlet/ext/jsp_portlet/view.jsp</value>
</init-param>
<expiration-cache>0</expiration-cache>
<supports>
<mime-type>text/html</mime-type>
</supports>
<resource-bundle>com.liferay.portlet.StrutsResourceBundle</resource-bundle>
<security-role-ref>
<role-name>power-user</role-name>
</security-role-ref>
<security-role-ref>
<role-name>user</role-name>
</security-role-ref>
</portlet>

1.2. liferay-portlet-ext.xml
----------------------------

(insert the below content)

<portlet>
<portlet-name>EXT_2</portlet-name>
</portlet>


1.3. liferay-display.xml
------------------------

(insert the below content)

<category name="category.example">
<portlet id="EXT_2" />
</category>

1.4. view.jsp
-------------

(create this file under "ext/ext-web/docroot/html/portlet/ext/jsp_portlet"
and enter the below contents)

Welcome to simple Basic JSP Portlet

Note: after this step do "ant deploy" from "ext-web"

1.5 Language-ext.properties
---------------------------

(under /ext/ext-impl/src/content)

Add two new entries in the above file,

javax.portlet.title.EXT_2=JSP Portlet

category.example=Training

Note: after this step do "ant deploy" from "ext-impl"

1.6 Restart the server and check
--------------------------------

Restart the server and check you get the new portlet under the "Training" category








Goto to Add application

See new category Training is made under which there is newly created JSP portlet.

JSP Portlet is successfully added.