SivaLabs : My Experiments on Technology: SpringMVC HelloWorld Tutorial

Tuesday, March 29, 2011

SpringMVC HelloWorld Tutorial

Spring is a popular Application framework based on Inversion Of Control/DependencyInjection principle.
SpringMVC is a framework following MVC architecture for building web applications.

Let us see how to create simple Hello World application using SpringMVC.

Step1 :
Copy the SpringMVC dependent libraries into WEB-INF/lib folder.
You can download the latest Spring bundle at http://www.springsource.org/download

Step2:
Configure the Spring's FrontController class DispatcherServlet in web.xml.
You can configure the other spring beans (if any) in XMLs and wireup using ContextLoaderListener as follows:

 
 
  dispatcher
  org.springframework.web.servlet.DispatcherServlet
  1
 
 
  dispatcher
  *.htm
 

 
  org.springframework.web.context.ContextLoaderListener
 
 
  contextConfigLocationclasspath:applicationContext.xml

Step3:
Create dispatcher-servlet.xml and put it in WEB-INF folder.

Step4:
Create index.jsp as follows:

<html>
 <head>
  <title>SpringMVC - HelloWorld</title>
 </head>
 
 <body>
  Enter your Name : 
   
   </body>
</html>

Step5:
Create a Controller which will handle the greetingController.htm request.

package com.sivalabs.springmvc.controllers;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;

/**
 * @author SivaLabs
 *
 */
@Controller
public class GreetingController
{
 @RequestMapping("/greetingController")
 public ModelAndView greet(HttpServletRequest request, HttpServletResponse response)
 {
  ModelAndView mav = new ModelAndView("welcome");
  String username = request.getParameter("username");
  mav.getModel().put("LOGGEDIN_USERNAME", username);
  return mav;  
 }
}

Step6:
Create welcome.jsp to show the welcome message and put it in /WEB-INF/jsp folder.

<html>
 <head>
  <title>SpringMVC - HelloWorld</title>
 </head>
 
 <body>
  Welcome ${LOGGEDIN_USERNAME}
 </body>
</html>

For source code download at

SpringMVCHibernate.zip

SivaLabs : My Experiments on Technology

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Tuesday, March 29, 2011

SpringMVC HelloWorld Tutorial

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