ActionSupport Class Example using Struts 2.0 the following tool are required for run this example
JDK 1.5
MyEclipse IDE
Server Tomcat 6.0
Struts 2.0 jar file
Directory Structure of ActionSupport Example in Struts 2.0 Using MyEclipse IDE

 
index.jsp

<%@taglib uri="/struts-tags" prefix="s"%>
<s:form action="register">
<s:textfield name="name" label="Name"/>
<s:password name="password" label="Password"/>
<s:textfield name="mailId" label="MailId"/>
<s:submit value="Register"/>
</s:form>

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

<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
"http://struts.apache.org/dtds/struts-2.0.dtd">
   <struts>
    <package name="demo" extends="struts-default">
    <action name="register" class="mypack.RegisterAction">
    <result name="success">/hello.jsp</result>
    <result name="input">/index.jsp</result>
    </action>
    </package>
    </struts>

RegisterAction.java

package mypack;
import com.opensymphony.xwork2.ActionSupport;
public class RegisterAction extends ActionSupport {
private String name,password,mailId;
	
@Override
	public void validate(){
	if(name.length()==0)
		this.addFieldError("name",”Name is Required"));
	if(password.length()==0)
		this.addFieldError("password",” Password is Required"));
	if(password.length()<5)
	this.addFieldError("password",”Password length more than five digit"));
}
public String execute(){
	return "success";
}
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public String getPassword() {
		return password;
	}
	public void setPassword(String password) {
		this.password = password;
	}
	public String getMailId() {
		return mailId;
	}
	public void setMailId(String mailId) {
		this.mailId = mailId;
	}
}

hello.jsp

<%@ taglib  uri="/struts-tags" prefix="s"%>

<b>You are successfully registered

Output




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