Explanation in LiferayURL

Today we will discuss detail explanation of portlet URLs in Liferay. Here we create a portlet and on jsp we create a actionURL and a renderURL and than check the URL . So lets start this step by step:-


Step 1:-Create Liferay Project and Portlet 
Just create a project and then create a portlet in it. My project name is urltesting-portlet and portlet name is url-demo . 





Step 2:-Change view.jsp
Now open view.jsp and paste this:-

view.jsp

	<%@ taglib uri="http://java.sun.com/portlet_2_0" prefix="portlet" %>
	<portlet:defineObjects />
	<!-- Action URLs -->
	<portlet:actionURL var="firstActionURL" name="firstMethod" />
	<!-- Render URLs -->
	<portlet:renderURL var="firstRenderURL">
	<portlet:param name="mvcPath" value="/html/urldemo/display.jsp"/>
	</portlet:renderURL>
	<h2>First Form</h2>
	<form action="<%=firstActionURL%>" method="POST">
	First :-<input type="text" name="first">
	<input type="submit" value="SUBMIT">
	</form>
	<br>
	<a href="<%= firstRenderURL%>">Render URL</a>

view raw view.jsp hosted with ❤ by GitHub

Explanation:-
Here i create a actionURL that will hit firstMethod in the Controller. I also create renderURL will go to display.jsp.

Step 3:-Change the Controller
Now open your java file and paste this:-

URLDemo.java

	package com.demo;
	import java.io.IOException;
	import javax.portlet.ActionRequest;
	import javax.portlet.ActionResponse;
	import javax.portlet.PortletException;
	import com.liferay.portal.kernel.util.ParamUtil;
	import com.liferay.util.bridges.mvc.MVCPortlet;
	public class URLDemo extends MVCPortlet {
	public void firstMethod(ActionRequest actionRequest,ActionResponse actionResponse) throws IOException, PortletException {
	String first = ParamUtil.getString(actionRequest, "first");
	System.out.println("First=>"+first);
	}
	}

view raw URLDemo.java hosted with ❤ by GitHub

Step 4:-Check ActionURL
Deploy your portlet and add to page.Here my page name is welcome and layout of page is 1 Column.Now i fill the value and click on submit Button.

 
Now check the browser URL:-

http://localhost:8080/web/guest/welcome?p_auth=Pa1eFFwX& p_p_id=urldemo_WAR_urltestingportlet&p_p_lifecycle=1&p_p_state=normal&p_p_mode=view&p_p_col_id=column-1 &p_p_col_count=1 &_urldemo_WAR_urltestingportlet _javax.portlet.action=firstMethod

Let me explain this URL:-

1)http://localhost:8080 :- Protocol+Host Address +Port

2)/web :- Because i added the portlet on Public page if it is private page then it become /group .

3)/guest :- Guest Community(Liferay Community).

4)/welcome :- Page name is welcome.

5)p_auth :- Authorization token generated by Liferay for Security.

6)p_p_id :- You can read more about portlet Id here.

7)p_p_lifecycle :- This is lifecycle of portlet .

• 0: render phase or render URL
• 1: action phase or action URL
• 2: server resource URL

8)p_p_state :- Window State of Portlet.

9)p_p_mode :- portlet mode either view/edit/help

10)p_p_col_id :- Id of the column where our portlet is placed.

11)p_p_col_count :- Number of column in current layout.

12)p_p_id_javax.portlet.action :- portletid with action parameter.

Note:- If the portlet is instanceable then URL is:-

http://localhost:8080/web/guest/welcome?p_auth=Pa1eFFwX& p_p_id=urldemo_WAR_urltestingportlet_INSTANCE_TFuo5RrOTrfg&p_p_lifecycle=1&p_p_state=normal&p_p_mode=view&p_p_col_id=column-1& _urldemo_WAR_urltestingportlet_INSTANCE_ TFuo5RrOTrfg_javax.portlet.action=firstMethod

Here only one parameter is extra ie instance id.


Step 5:-Check RenderURL
Now click on Render URL link:-

Now Check the URL:-

http://localhost:8080/web/guest/welcome?p_p_id= urldemo_WAR_urltestingportlet&p_p_lifecycle=0&p_p_state=normal&p_p_mode=view&p_p_col_id=column-1&p_p_col_count=1&_urldemo_WAR_urltestingportlet_mvcPath=%2Fhtml%2Furldemo%2Fdisplay.jsp

Note:- If the portlet is instanceable then URL is:-

http://localhost:8080/web/guest/welcome?p_p_id= urldemo_WAR_urltestingportlet_INSTANCE_TFuo5RrOTrfg&p_p_lifecycle=0&p_p_state=normal&p_p_mode=view&p_p_col_id=column-1&p_p_col_count=2 &_urldemo_ WAR_ urltestingportlet_INSTANCE_TFuo5RrOTrfg_mvcPath=%2Fhtml%2Furldemo%2Fdisplay.jsp

Hope this will Help....

Related Post:-

Developing a MVCPortlet with Multiple Actions in Liferay

Categorization in web content

Fetch Web Contents Programmatically

Get Journal Article Fields Programmatically

Embedding a Portlet in Web Content

Creating tabs using Web Content

Embedding a Web Content/Journal Article in a Portlet

Index Post Processor Hook