Create JSP Portlet in Liferay 5.2.X

A Portlet is a  Web component that processes requests and generates dynamic content.

A portlet is a reusable building block for easily publishing information and applications.

Here i am giving the step by step code snippets for creating simple Jsp portlet in Liferay Enviroinment.

To create simple JSP portlet , We need atleast 3 xml files and 1 jsp file.
[the xml files are located under "ext/ext-web/docroot/WEB-INF"]
1. portlet-ext.xml
2. liferay-portlet-ext.xml
3. liferay-display.xml
4. view.jsp

I .  Development

In this xml file, we have to define portlet name and portlet class ..etc…

1.portlet-ext.xml (ext/ext-web/docroot/WEB-INF)

<portlet>

<portlet-name>MYPORTLET</portlet-name>
<display-name>My Portlet</display-name>
<portlet-class>com.liferay.util.bridges.jsp.JSPPortlet</portlet-class>

<init-param>
<name>view-jsp</name>
<value>/html/testing/myportlet/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>
</portlet>

2. liferay-portlet-ext.xml (ext/ext-web/docroot/WEB-INF)

We should register that portlet in liferay using this xml file.

<liferay-portlet-app>
//register portlet in liferay
<portlet>
<portlet-name>MYPORTLET</portlet-name>
</portlet>
</liferay-portlet-app>

3. liferay-display.xml (ext/ext-web/docroot/WEB-INF)

this xml file defines Under which category our portlet should be displayed

<display>
// under which category our portlet shoud display in Add Content…
<category name=”category.myportlet”>
<portlet id=”MYPORTLET“></portlet>
</category>

</display>

4. view.jsp

(create this file under “ext/ext-web/docroot/html/testing/myportlet” )

<h2> Welcome to my first Jsp portlet </h2>

II .  Deploy :

Give “ant deploy“  inside  ext or ext-web. Start the server and make sure that your portlet is created.

your portlet title will disply like this: javax.portlet.title.MYPORTLET

go to  ext/ext-impl/src/content/language-ext.properties file

add this entry:

javax.portlet.title.MYPORTLET = MY JSP PORTLET

then again ant deploy and start the server.

Now, You have sucessfully created Jsp Portlet.

Tags: Liferay, Jsp Portlet