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Java

Hello World with Spring 3.0

This post explains how to implement a simple web application with Spring 3.0 on Tomcat.

I used the following tools:

  • Java 1.6.0_22
  • Tomcat 6.0.20
  • Spring 3.0.4
  • NetBeans 6.9
    1. In your IDE create a project called Hello World

 

    1. Add the following libraries:
      • commons-logging.jar
      • org.springframework.aop-3.0.4.RELEASE.jar
      • org.springframework.asm-3.0.4.RELEASE.jar
      • org.springframework.aspects-3.0.4.RELEASE.jar
      • org.springframework.beans-3.0.4.RELEASE.jar
      • org.springframework.context-3.0.4.RELEASE.jar
      • org.springframework.context.support-3.0.4.RELEASE.jar
      • org.springframework.core-3.0.4.RELEASE.jar
      • org.springframework.expression-3.0.4.RELEASE.jar
      • org.springframework.instrument-3.0.4.RELEASE.jar
      • org.springframework.instrument.tomcat-3.0.4.RELEASE.jar
      • org.springframework.jdbc-3.0.4.RELEASE.jar
      • org.springframework.jms-3.0.4.RELEASE.jar
      • org.springframework.orm-3.0.4.RELEASE.jar
      • org.springframework.oxm-3.0.4.RELEASE.jar
      • org.springframework.test-3.0.4.RELEASE.jar
      • org.springframework.transaction-3.0.4.RELEASE.jar
      • org.springframework.web-3.0.4.RELEASE.jar
      • org.springframework.web.portlet-3.0.4.RELEASE.jar
      • org.springframework.web.servlet-3.0.4.RELEASE.jar
      • org.springframework.web.struts-3.0.4.RELEASE.jar

 

    1. Create the file /WEB-INF/web.xml
      <?xml version="1.0" encoding="UTF-8"?>
      <web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee"
      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
      xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
      http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
      
          <display-name>HelloWorld</display-name>
          <servlet>
              <servlet-name>HelloWorld</servlet-name>
              <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
              <load-on-startup>1</load-on-startup>
          </servlet>
          <servlet-mapping>
              <servlet-name>HelloWorld</servlet-name>
              <url-pattern>*.html</url-pattern>
          </servlet-mapping>
      
          <session-config>
              <session-timeout>
                  30
              </session-timeout>
          </session-config>
          
          <welcome-file-list>
              <welcome-file>index.jsp</welcome-file>
          </welcome-file-list>
          
      </web-app>
      

 

    1. Create the file /WEB-INF/HelloWorld-servlet.xml
      <?xml version="1.0" encoding="UTF-8"?>
      <beans xmlns="http://www.springframework.org/schema/beans"
      	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"
      	xmlns:context="http://www.springframework.org/schema/context"
      	xsi:schemaLocation="http://www.springframework.org/schema/beans
              http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
              http://www.springframework.org/schema/context
              http://www.springframework.org/schema/context/spring-context-3.0.xsd">
          <context:component-scan base-package="it.helloworld.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>
      

 

    1. Create the file index.jsp in the application root
      <%@page contentType="text/html" pageEncoding="UTF-8"%>
      <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
         "http://www.w3.org/TR/html4/loose.dtd">
      
      <html>
          <head>
              <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
              <title>Welcome Page</title>
          </head>
          <body>
              <jsp:forward page="helloWorld.html" />
          </body>
      </html>
      

 

    1. Create the directory /WEB-INF/views and the file /WEB-INF/views/helloWorld.jsp
      <%@page contentType="text/html" pageEncoding="UTF-8"%>
      <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
         "http://www.w3.org/TR/html4/loose.dtd">
      
      <html>
          <head>
              <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
              <title>JSP Page</title>
          </head>
          <body>
              <h1>Hello World!</h1>
          </body>
      </html>
      

 

    1. Create the file /WEB-INF/classes/it/helloworld/controller/HelloWorldController.java
      package it.helloworld.controller;
      
      import org.springframework.stereotype.Controller;
      import org.springframework.web.bind.annotation.RequestMapping;
      import org.springframework.web.servlet.ModelAndView;
      
      @Controller
      public class HelloWorldController {
      
          @RequestMapping(value={"/index", "/helloWorld"})
          public ModelAndView helloWorld() {
              return new ModelAndView("helloWorld");
          }
      }
      

 

  1. Deploy and launch the application

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