Create a struts 2 application in MyEclipse

Introduction

Struts 2 is a second-gen web application framework based on the Model-View-Controller (MVC) design pattern. The foundation of Struts 2 is based on the best practices and established, widely-accepted design patterns.

In the following article, we will learn how to build a working application using the Struts 2 framework.

Steps to create a Struts 2 application

We'll use the MyEclipse IDE to build the Struts 2 application. Because MyEclipse offers the jar files, we don't need to worry about them.

You need to follow these steps to create the struts 2 application.

1. Create a web project
2. Add struts 2 capabilities.
3. Create input page (index.jsp).
4. Create the action class (Product.java).
5. Map the request with the action in the (struts.xml) file and define the view components.
6. Create view components (welcome.jsp).
7. Start the server and deploy the project.

Create a web project

To create a web project, click on the File menu - new - project - web project - write the project name e.g. firststruts - finish.

Add struts 2 capabilities

To add the struts 2 capabilities, select your project - click on the myeclipse menu - add project capabilities - add struts capabilities.

Select the 2.1 and /* as the url pattern - finish.

Create input page (index.jsp)

It creates a form with fields using struts core tags.

index.jsp

<%@ taglib uri="/struts-tags" prefix="s" %>  
<s:form action="product">  
<s:textfield name="id" label="Product Id"></s:textfield>  
<s:textfield name="name" label="Product Name"></s:textfield>  
<s:textfield name="price" label="Product Price"></s:textfield>  
<s:submit value="save"></s:submit>  
</s:form>  

Create the action class (Product.java)

It is a straightforward action class with setters and getters for its properties. Defining the business logic, this class also includes the execute method.

Product.java

package com.codingNinjas;  
public class Product {  
private int id;  
private String name;  
private float price;  
public int getId() {  
    return id;  
}  
public void setId(int id) {  
    this.id = id;  
}  
public String getName() {  
    return name;  
}  
public void setName(String name) {  
    this.name = name;  
}  
public float getPrice() {  
    return price;  
}  
public void setPrice(float price) {  
    this.price = price;  
}  
  
public String execute(){  
    return "success";  
}  
}  

Mapping the request in the file and defining the view components

The action and view components are registered in this XML file.

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="default" extends="struts-default">  
  
<action name="product" class="com.javatpoint.Product">  
<result name="success">welcome.jsp</result>  
</action>  
  
</package>  
</struts>      

Creating the view components (welcome.jsp)

This jsp page displays the information set in the action object.

welcome.jsp

<%@ taglib uri="/struts-tags" prefix="s" %>  
  
Product Id:<s:property value="id"/><br/>  
Product Name:<s:property value="name"/><br/>  
Product Price:<s:property value="price"/><br/>  

Start the server and deploy the project

For starting the server and deploying the project, right-click on your project - Run As - MyEclipse server application.