Spring3のSpring MVCでなるべく最小単位のHello world ref: http://qiita.com/siguremon/items/84c831391a6204079fd2

beans-webmvc.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:context="http://www.springframework.org/schema/context"
           xmlns:mvc="http://www.springframework.org/schema/mvc"
           xsi:schemaLocation="
        http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
        http://www.springframework.org/schema/context
        http://www.springframework.org/schema/context/spring-context-3.1.xsd
        http://www.springframework.org/schema/mvc
        http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd">
    <!-- (1) -->
    <context:component-scan base-package="controller" />

    <!-- (2) -->
    <mvc:annotation-driven />

    <!-- (3) -->
    <mvc:resources mapping="/resources/**" location="/WEB-INF/resources/" />

    <!-- (4) -->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/views/" />
        <property name="suffix" value=".jsp" />
    </bean>

</beans>

file0.txt

SpringTodo
 |-pom.xml
 |-src
    |-main
    |  |-java
    |  |  |-controller
    |  |     |-HelloWorldController.java -- Controllerクラス
    |  |-resources 
    |  |  |-META-INF　-- Spring周りの設定ファイルおよびリソースファイルを配置するフォルダ
    |  |     |-spring
    |  |        |-beans-webmvc.xml -- Spring MVCのBean定義ファイル
    |  |-webapp -- Web Application周りのファイルを配置するフォルダ
    |     |-WEB-INF
    |        |-web.xml
    |        |-resources -- 静的リソースを配置するフォルダ
    |        |-views -- jspなどのviewを配置するフォルダ
    |           |-helloworld.jsp
    |-test

helloworld.jsp

<%@ page contentType="text/html; charset=UTF-8" pageEncoding="UTF-8" %>
<h1>hello world</h1>

HelloWorldController.java

package controller;

import static org.springframework.web.bind.annotation.RequestMethod.GET;

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

// (1)
@Controller
public class HelloWorldController {
    // (2)
    @RequestMapping(value = "/", method = GET)
    public String home() {
        // (3)
        return "helloworld";
    }
}

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>spring-todo</display-name>
    <!-- (1) -->
    <servlet>
        <servlet-name>dispatcherServlet</servlet-name>
        <servlet-class>
            org.springframework.web.servlet.DispatcherServlet
        </servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>
                classpath:/META-INF/spring/beans-webmvc.xml
            </param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>

    <!-- (2) -->
    <servlet-mapping>
        <servlet-name>dispatcherServlet</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>
</web-app>