Struts 1.x Fisrt Example

Complete web MVC( Model - View - Controller ) framework, provides complete web form components, validator, internalization, error handling, tiles layout. Struts 1.x is low learning curve and easy to implement it.

Step - 1.0 Create Directory Structure

Create the folder structure and add struts libraries under the lib folder which is inside the WEB-INF.

Step - 2.0 Create Action Form

Create a java class called “FirstExampleForm.java” by extending struts Action Form. This is use to hold the data later.

package first.form;

import java.io.Serializable;

import org.apache.struts.action.ActionForm;

public class FirstExampleForm extends ActionForm implements Serializable{

/**

private static final long serialVersionUID = 1L;

private String message;

public String getMessage() {

return message;

}

public void setMessage(String message) {

this.message = message;

}

Step - 3.0 Create Action Class

Create a java class called “FirstExampleAction.java” by extending struts Action (Action Controller). Struts forward the request by override the execute() method.

package first.action;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import org.apache.struts.action.Action;

import org.apache.struts.action.ActionForm;

import org.apache.struts.action.ActionForward;

import org.apache.struts.action.ActionMapping;

import first.form.FirstExampleForm;

public class FirstExampleAction extends Action {

public ActionForward execute(ActionMapping actionMapping, ActionForm form,

HttpServletRequest request, HttpServletResponse response)

throws Exception{

FirstExampleForm firstExampleForm = (FirstExampleForm)form;

firstExampleForm.setMessage("First Example of Struts is Success");

return actionMapping.findForward("success");

}

Step - 4.0 Create JSP view page

Create a jsp called “FirstExample.jsp” This access the Action Form object via Struts tag library and print the Form properties.

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>

<%@taglib uri="http://struts.apache.org/tags-bean" prefix="bean"%>

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">

<html>

<head>

<title>First Example</title>

</head>

<body>

</body>

</html>

Step - 5.0 Create struts-config.xml

Create a struts-config.xml file for the Struts configuration details, and put it into the WEB-INF/config folder.

Define the form bean name (FirstExampleForm).

Defien the Action mapping controller (FirstExampleAction), match the /firstExample web path to FirstExampleAction.

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

<!DOCTYPE struts-config PUBLIC

"-//Apache Software Foundation//DTD Struts Configuration 1.3//EN"

"http://jakarta.apache.org/struts/dtds/struts-config_1_3.dtd">

<struts-config>

<form-beans>

<form-bean name="FirstExampleForm" type="first.form.FirstExampleForm"/>

</form-beans>

<action-mappings>

</action>

</action-mappings>

</struts-config>

Step - 6.0 The web application deployment descriptor ( web.xml )

In web.xml file, configure the Struts ActionServlet instance and map it with url-pattern “*.do”, so that the container is aware of all the “*.do” pattern will redirect to Struts ActionServlet.

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

<!DOCTYPE struts-config PUBLIC

"-//Apache Software Foundation//DTD Struts Configuration 1.3//EN"

"http://jakarta.apache.org/struts/dtds/struts-config_1_3.dtd">

<struts-config>

<form-beans>

<form-bean name="FirstExampleForm" type="first.form.FirstExampleForm"/>

</form-beans>

<action-mappings>

</action>

</action-mappings>

</struts-config>

Step - 7.0 Run the application on server and out put will be-

IT Education Guidance - Struts

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Tuesday, August 20, 2013

Struts 1.x Fisrt Example

Struts 1.x Fisrt Example