001. Spring MVC HelloWorld

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1、创建Dynamic Web Project项目：File -> New -> Dynamic Web Project

2、项目结构
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3、引入jar包
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4、创建spring-mvc.xml文件

<?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.xsd        http://www.springframework.org/schema/context        http://www.springframework.org/schema/context/spring-context.xsd">    <!-- 使用注解的包 -->    <context:component-scan base-package="com.springmvc"></context:component-scan>    <!-- 视图解析器 -->    <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">        <property name="prefix" value="/"/>        <property name="suffix" value=".jsp"/>    </bean></beans>

5、配置web.xml

<?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>Spring-mvc-demo</display-name>  <welcome-file-list>    <welcome-file>index.jsp</welcome-file>  </welcome-file-list>  <servlet>    <servlet-name>SpringMVC</servlet-name>    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>    <init-param>      <param-name>contextConfigLocation</param-name>      <param-value>classpath:spring-mvc.xml</param-value>    </init-param>  </servlet>  <servlet-mapping>    <servlet-name>SpringMVC</servlet-name>    <url-pattern>*.do</url-pattern>  </servlet-mapping></web-app>

6、创建WelcomeController控制类WelcomeController.java

package com.springmvc.controller;import org.springframework.stereotype.Controller;import org.springframework.ui.Model;import org.springframework.web.bind.annotation.RequestMapping;@Controllerpublic class WelcomeController {    @RequestMapping("/welcome")    public String welcome(Model model) {        model.addAttribute("message", "Hello world, Spring MVC");        return "welcome";    }}

7、创建index.jsp页面

<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%><!DOCTYPE html><html>  <head>    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">    <title>Spring MVC</title>  </head>  <body>    <a href="welcome.do">Spring MVC, Welcome!</a>  </body></html>

8、创建welcome.jsp页面

<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%><!DOCTYPE html><html>  <head>    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">    <title>Spring MVC</title>  </head>  <body>    ${message }  </body></html>

9、测试结果
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