DZone
Thanks for visiting DZone today,
Edit Profile
  • Manage Email Subscriptions
  • How to Post to DZone
  • Article Submission Guidelines
Sign Out View Profile
  • Post an Article
  • Manage My Drafts
Over 2 million developers have joined DZone.
Log In / Join
Refcards Trend Reports
Events Video Library
Over 2 million developers have joined DZone. Join Today! Thanks for visiting DZone today,
Edit Profile Manage Email Subscriptions Moderation Admin Console How to Post to DZone Article Submission Guidelines
View Profile
Sign Out
Refcards
Trend Reports
Events
View Events Video Library
Zones
Culture and Methodologies Agile Career Development Methodologies Team Management
Data Engineering AI/ML Big Data Data Databases IoT
Software Design and Architecture Cloud Architecture Containers Integration Microservices Performance Security
Coding Frameworks Java JavaScript Languages Tools
Testing, Deployment, and Maintenance Deployment DevOps and CI/CD Maintenance Monitoring and Observability Testing, Tools, and Frameworks
Culture and Methodologies
Agile Career Development Methodologies Team Management
Data Engineering
AI/ML Big Data Data Databases IoT
Software Design and Architecture
Cloud Architecture Containers Integration Microservices Performance Security
Coding
Frameworks Java JavaScript Languages Tools
Testing, Deployment, and Maintenance
Deployment DevOps and CI/CD Maintenance Monitoring and Observability Testing, Tools, and Frameworks

Migrate, Modernize and Build Java Web Apps on Azure: This live workshop will cover methods to enhance Java application development workflow.

Modern Digital Website Security: Prepare to face any form of malicious web activity and enable your sites to optimally serve your customers.

Kubernetes in the Enterprise: The latest expert insights on scaling, serverless, Kubernetes-powered AI, cluster security, FinOps, and more.

A Guide to Continuous Integration and Deployment: Learn the fundamentals and understand the use of CI/CD in your apps.

Related

  • Using ZK With Spring Boot
  • Develop Web Application With Spring Boot in 30 minutes
  • Open Source Tools Options in Web Application Development
  • Node.js Http Module to Consume Spring RESTful Web Application

Trending

  • 5 Steps To Tame Unplanned Work
  • Data Ingestion for Batch/Near Real-Time Analytics
  • Understanding Zero Trust Security Building a Safer Digital World
  • What Is CI/CD? Beginner’s Guide To Continuous Integration and Deployments
  1. DZone
  2. Coding
  3. Frameworks
  4. Migrate from Struts to Spring MVC in 6 Steps

Migrate from Struts to Spring MVC in 6 Steps

Das Nic user avatar by
Das Nic
·
Jul. 06, 15 · Tutorial
Like (5)
Save
Tweet
Share
79.7K Views

Join the DZone community and get the full member experience.

Join For Free

In this tutorial we will see the migration of a web application made in struts to spring mvc. Struts to Spring migration we will do step by step. Here I will share you step by step approach to migrate application from Struts to Spring using annotations.

Step 1: Replace struts libraries with spring libraries.

Firstly while migrating from struts to spring we have to replace our struts related libraries with spring libraries in lib folder.

migrate from struts2 to spring3


I have mentioned basic libraries of both struts and spring for your clarification.

Struts basic libraries :

  1. struts.jar

  2. struts-legacy.jar

  3. etc..

Have you ever use : Javadoc comment in Java

Spring basic libraries :

  1. standard.jar

  2. org.springframework.asm-4.0.1.RELEASE-A.jar

  3. org.springframework.beans-4.0.1.RELEASE-A.jar

  4. org.springframework.context-4.0.1.RELEASE-A.jar

  5. org.springframework.core-4.0.1.RELEASE-A.jar

  6. org.springframework.expression-4.0.1.RELEASE-A.jar

  7. org.springframework.web.servlet-4.0.1.RELEASE-A.jar

  8. org.springframework.web-4.0.1.RELEASE-A.jar

  9. etc..

Step 2: Change made to web.xml file for struts to spring migration

In this step we have to remove Action filter dispatcher for the web.xml and add Spring dipatcher servlet as Front controller

Work on new technology : Create and manage cloud applications using Java

In Strut application web.xml look like as follows

<?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>Struts2MyFirstApp</display-name>

<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>

<welcome-file-list>

<welcome-file>Login.jsp</welcome-file>

</welcome-file-list>

</web-app>


In Spring application web.xml look like as follows

<?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" 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>springApp</display-name>

<servlet>

<servlet-name>springApp</servlet-name>

<servlet-class>

org.springframework.web.servlet.DispatcherServlet

</servlet-class>

<load-on-startup>1</load-on-startup>

</servlet>

<servlet-mapping>

<servlet-name>springApp</servlet-name>

<url-pattern>/</url-pattern>

</servlet-mapping>

</web-app>


Step 3: Replace config files for struts to spring migration

Now replace all struts configuration files to spring configuration file as follows

In Struts application struts configuration file-

<?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.enable.DynamicMethodInvocation" value="false" />

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

<constant name="struts.custom.i18n.resources" value="myapp" />

<package name="default" extends="struts-default" namespace="/">

<action name="login" class="com.geekonjavaonjava.struts2.login.LoginAction">

<result name="success">Welcome.jsp</result>

<result name="error">Login.jsp</result>

</action>

</package>

</struts>


In Spring application spring configuration file as follows

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

<beans xmlns="http://www.springframework.org/schema/beans"

xmlns:context="http://www.springframework.org/schema/context"

xmlns:p="http://www.springframework.org/schema/p"

xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

xsi:schemaLocation="http://www.springframework.org/schema/beans

http://www.springframework.org/schema/beans/spring-beans-4.0.xsd

http://www.springframework.org/schema/context

http://www.springframework.org/schema/context/spring-context-4.0.xsd">

<context:component-scan base-package="com.geekonjavaonjava.spring.login.controller" />

<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">

<property name="prefix">

<value>/WEB-INF/views/</value>

</property>

<property name="suffix">

<value>.jsp</value>

</property>

</bean>

</beans> <span style="font-family: Times New Roman;"><span style="white-space: normal;">

</span></span>


Here, <context:component-scan> tag is used, so that spring will load all the components from given package i.e. "com.geekonjavaonjava.spring.login.controller".

We can use different view resolver, here I have used InternalResourceViewResolver. In which prefix and suffix are used to resolve the view by prefixing and suffixing values to the object returned by ModelAndView in action class.

For other three Steps see the reference

Spring Framework Web application

Published at DZone with permission of Das Nic. See the original article here.

Opinions expressed by DZone contributors are their own.

Related

  • Using ZK With Spring Boot
  • Develop Web Application With Spring Boot in 30 minutes
  • Open Source Tools Options in Web Application Development
  • Node.js Http Module to Consume Spring RESTful Web Application

Comments

Partner Resources

X

ABOUT US

  • About DZone
  • Send feedback
  • Careers
  • Sitemap

ADVERTISE

  • Advertise with DZone

CONTRIBUTE ON DZONE

  • Article Submission Guidelines
  • Become a Contributor
  • Core Program
  • Visit the Writers' Zone

LEGAL

  • Terms of Service
  • Privacy Policy

CONTACT US

  • 3343 Perimeter Hill Drive
  • Suite 100
  • Nashville, TN 37211
  • support@dzone.com

Let's be friends: