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

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

    xmlns="http://xmlns.jcp.org/xml/ns/javaee"

    xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee

    http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" version="3.1">

  <display-name>SM02</display-name>

  <!-- 配置SpringMVC前端控制器DispatcherServlet -->

  <servlet>

      <servlet-name>springmvc</servlet-name>

      <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>

      <init-param>

          <param-name>contextConfigLocation</param-name>

          <!-- 指定SpringMVC配置文件spring-config.xml，用来将拦截的对应请求分发给对应的Controller-->

          <param-value>/WEB-INF/springmvc-config.xml</param-value>

      </init-param>

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

  </servlet>

  <!-- 指定该springmvc的Servlet可以拦截的请求为所有请求（"/"）,
       之后可以分发给对应的Controller-->

  <servlet-mapping>

      <servlet-name>springmvc</servlet-name>

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

  </servlet-mapping>

</web-app>

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

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

    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-4.2.xsd">

    <!-- 配置Handle，映射"/hello"请求 -->

    <bean name="/hello" class="org.fkit.controller.HelloController"/>

    <!-- 处理映射器将bean的name作为url进行查找，需要在配置Handle时指定name（即url） -->

    <bean class="org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping"/>

    <!-- SimpleControllerHandlerAdapter是一个处理器适配器，所有处理适配器都要实现 HandlerAdapter接口-->

    <bean class="org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter"/>

    <!-- 视图解析器 -->

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

</beans>

package org.fkit.controller;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import org.apache.commons.logging.Log;

import org.apache.commons.logging.LogFactory;

import org.springframework.web.servlet.ModelAndView;

import org.springframework.web.servlet.mvc.Controller;

/**

 * 一个实现了Controller接口的控制器

 * 可以处理一个单一的请求动作（"/hello"）

 * http://localhost:8080/SM02/hello

 */

public class HelloController implements Controller {

    private static final Log logger = LogFactory.getLog(HelloController.class);

    /**

     * handleRequest方法时Controller接口必须实现的方法

     * 返回一个ModelAndView对象，包含视图名或视图名和模型

     */

    public ModelAndView handleRequest(HttpServletRequest arg0,

            HttpServletResponse arg1) throws Exception {

        logger.info("handleRequest调用");

        //创建ModelAndView对象

        ModelAndView mv = new ModelAndView();

        //添加模型数据,可以是任意POJO对象，第一个参数是对该对象的命名，可在jsp中用EL表达式引用

        mv.addObject("message", "Hello SpringMVC");

        //设置逻辑视图名，视图解析器会根据该名字解析到具体的视图页面，参数指定该页面路径

        mv.setViewName("/WEB-INF/content/welcome.jsp");

        //返回ModelAndView对象

        return mv;

    }

}

<%@ page language="java" contentType="text/html; charset=UTF-8"

    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>欢迎页面</title>

</head>

<body>

<!-- 页面可以访问Controller传递传递出来的message -->

${requestScope.message}

</body>

</html>