The requested resource () is not available.

helloworld.jsp

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

<html>
<head>
<title>Hello World!</title>
</head>
<body>
<h2><s:property value="message" /></h2>
</body>
</html>

helloworld.java

package org.poc;
import com.opensymphony.xwork2.ActionSupport;

public class HelloWorld extends ActionSupport {

private static final long serialVersionUID = 6393504953362012108L;
public static final String MESSAGE = "Struts is up and running ...";

public String execute() throws Exception {
setMessage(MESSAGE);
return SUCCESS;
}

private String message;

public void setMessage(String message){
this.message = message;
}

public String getMessage() {
return message;
}
}

web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app id="WebApp_9" version="2.4"
xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<display-name>Print Everywhere</display-name>

<filter>
<filter-name>struts-cleanup</filter-name>
<filter-class>
org.apache.struts2.dispatcher.ActionContextCleanUp
</filter-class>
</filter>

<filter>
<filter-name>struts2</filter-name>
<filter-class>
com.printeverywhere.util.StrutsFilterDispacher
</filter-class>
</filter>

<filter-mapping>
<filter-name>struts2</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="org.poc" extends="struts-default">
<action name="HelloWorld" class="org.poc.HelloWorld">
<result>/HelloWorld.jsp</result>
</action>

</package>
</struts>

When i click submit i am getting The requested resource () is not available.whT MIGHT BE the possible reasons?

This is covered by the very first entry in the ServletsFaq. Please checks the FAQs before posting to see of the question has already been answered. Thanks.