The Struts2 framework provide “debug” tag, through this tag debugging the output content of the “Value Stack” and also the “Stack Context” details are show on the web browser.

Syntax of this tag is:-
<s:debug></s:debug>

The struts2 framework provide following debug tag example,
<s:debug></s:debug>

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



index.jsp

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

<h2>Debug tag example in struts2 framework</h2>
<s:debug></s:debug>

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.DebugTagAction">
<result name="success" type="dispatcher">/index.jsp</result>
</action>
</package>
</struts>

DebugTagAction.java

package org.r4r;

public class DebugTagAction {
	String debug;

	public String getDebug() {
		return debug;
	}

	public void setDebug(String debug) {
		this.debug = debug;
	}
	public String execute(){
		return "success";
	}

}

Output





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