The struts2 framework provide param tag to use parameter value. The parameter value define in two way first through value attribute and second param tag.
<s:bean name="" var="">
	<s:param name="" value=""></s:param>
</s:bean>

The struts 2.0 framework provide param tag  which are following,
<s:bean name="org.r4r.Student" var="student">
	<s:param name="name" value="mukund"></s:param> 
</s:bean> 

 
Directory Structure of <s:param> tag Example in Struts 2.0 Using MyEclipse IDE



index.jsp

<%@ taglib prefix="s" uri="/struts-tags" %>
 
<h1>Param tag example in struts2 framework</h1>
 
<s:bean name="org.r4r.Course" var="mycourse">
	<s:param name="courseName">MCA</s:param>
</s:bean>
 
<s:bean name="org.r4r.Student" var="studentinfo">
	<s:param name="name">Mukund Singh</s:param>
	<s:param name="paper">Java</s:param>
	<s:param name="course" value="#mycourse"></s:param>
</s:bean>
 
<h3>Student Details</h3>
<ol>
<li>Student Name: <s:property value="#studentinfo.name" /></li>
<li>Student Paper: <s:property value="#studentinfo.paper" /></li>
<li>Student Course: <s:property value="#studentinfo.courseName" /></li>
</ol>

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" 
	xmlns="http://java.sun.com/xml/ns/javaee" 
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
	xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 
	http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
  
  <filter>
  <filter-name>f1</filter-name>
  <filter-class>org.apache.struts2.dispatcher.FilterDispatcher</filter-class>
  </filter>
  <filter-mapping>
  <filter-name>f1</filter-name>
  <url-pattern>/*</url-pattern>
  </filter-mapping>
</web-app>

struts.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration
2.1//EN" "http://struts.apache.org/dtds/struts-2.1.dtd">
<struts>
<package name="demo" extends="struts-default">
<action name="" class="org.r4r.Student">
<result name="success">/index.jsp</result>
</action>
</package>
</struts>

Course.java

package org.r4r;

public class Course {
	String courseName;

	public String getCourseName() {
		return courseName;
	}

	public void setCourseName(String courseName) {
		this.courseName = courseName;
	}

}

student.java

package org.r4r;

public class Student {
	String name;
	String paper;
	Course course;
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public String getPaper() {
		return paper;
	}
	public void setPaper(String paper) {
		this.paper = paper;
	}
	public Course getCourse() {
		return course;
	}
	public void setCourse(Course course) {
		this.course = course;
	}
	public String getCourseName(){
		return this.course.getCourseName();
	}
 

}

Output





Struts 1.3 Tutorial and Example
Spring 2.5 Tutorial and Example
Spring 2.5 MVC Tutorial
Spring 2.5 MVC Example