Wednesday, July 25, 2012

Struts2 002 ActionSupport class

struts.xml
-----------------
<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
"http://struts.apache.org/dtds/struts-2.0.dtd">

<struts>

<constant name="struts.devMode" value="true" />

<package name="kites" extends="struts-default">

<action name="actionSupport" class="com.kites.ActionSupportExample">
<result>actionsupport.jsp</result>
</action>

</package>

</struts>
--------------------------------------------------------------------------------------------------------------------------
ActionSupportExample.java
-------------------------------------------

package com.kites;

import com.opensymphony.xwork2.ActionSupport;

public class ActionSupportExample extends ActionSupport {

public String execute() throws Exception {
setMessage(getText(ACTIONMESSAGE));
System.out.println("Some Action Support Messages");
return SUCCESS;
}

public static final String ACTIONMESSAGE = "ActionSupportExample.message";
private String message;

public String getMessage() {
return message;
}

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

<%@ page contentType="text/html; charset=UTF-8" %>
<%@ taglib prefix="s" uri="/struts-tags" %>
<html>
<head>
<title><s:text name="ActionSupportExample.message"/></title>
</head>

<body>
<h2><s:property value="message"/></h2>
<a href="#">Back to Index page</a>
</body>
</html
-------------------------------------------------------------------------------------------------------------------------
web.xml
--------------
<?xml version="1.0" encoding="UTF-8"?>

<web-app
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
id="WebApp_ID" version="3.0">

<display-name>Struts 2</display-name>

<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>

<filter>
<filter-name>struts2</filter-name>
<filter-class>
org.apache.struts2.dispatcher.FilterDispatcher
</filter-class>
</filter>

<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</web-app>
----------------------------------------------------------------------------------------

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