Getting Started Guide to Learning the Struts Framework: Master it Step by Step

The Struts framework is a web application framework based on the MVC pattern, used to simplify web application development. The getting started guide involves the following steps: Create a Struts project Configure Struts Define actions Configure actions Create views

Getting started guide for learning the Struts framework: Master it step by step

What is Struts framework?

Struts is a Web application framework based on the MVC (Model-View-Controller) pattern. It simplifies the development of web applications, allowing developers to focus on business logic without paying too much attention to low-level details.

Getting Started Guide

1. Create a Struts project

Use Maven to create a Struts project:

<dependency>
  <groupId>org.apache.struts</groupId>
  <artifactId>struts2-core</artifactId>
  <version>2.5.26</version>
</dependency>

2. Configure Struts

Configure Struts in the web.xml file:

<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>

3. Define actions

Action processing Web requests and responses. Create an action class:

public class HelloWorldAction extends Action {
  @Override
  public String execute() {
    return SUCCESS;
  }
}

4. Configure the action

Configure the action in the struts.xml file:

<action name="hello" class="HelloWorldAction">
  <result name="success">/hello.jsp</result>
</action>

5. Create View

View displays data. Create a view page:

<%@ page language="java" contentType="text/html; charset=UTF-8"
  pageEncoding="UTF-8"%>
<h1 id="Hello-World">Hello World!</h1>

Practical case

Create a simple Struts application that displays "Hello World!":

1. Use Maven creates a Struts project.

2. Define the following action in the struts.xml file:

   <action name="hello">
     <result>/hello.jsp</result>
   </action>

3. Add the following view in the hello.jsp file:

   <%@ page language="java" contentType="text/html; charset=UTF-8"
     pageEncoding="UTF-8"%>
   <h1 id="Hello-World">Hello World!</h1>

4. Run the application and visit the following URL:

   http://localhost:8080/hello

##Conclusion

This guide provides a step-by-step guide to getting started with the Struts framework. Through practical cases, you can quickly master the basic concepts and practical applications of Struts.

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