创建个简易的Spring MVC项目

1.准备所需jar包：
这里写图片描述
2.创建动态web项目：

3.项目取名为AmazingWorld,点击next:

4.把web.xml勾选上：

5.项目结构如下：
+
注意application.xml位置，它在src根目录下。

6.源代码如下：

web.xml

<?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" id="WebApp_ID" version="3.1">
  <display-name>AmazingWorld</display-name>

 <!-- 配置请求分发器 -->
  <servlet>
    <servlet-name>AmazingWorld</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
        <!-- 指定application.xml文件 -->
        <param-name>contextConfigLocation</param-name> 
        <param-value>classpath:application.xml</param-value>
    </init-param>
    <!-- 启动优先级，优先加载Spring的xml配置文件，数字越小，优先级越大 -->
    <load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>AmazingWorld</servlet-name>
    <url-pattern>/</url-pattern> <!-- 拦截所有的请求 -->
  </servlet-mapping>

</web-app>

application.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"
    xmlns:aop="http://www.springframework.org/schema/aop" xmlns:jee="http://www.springframework.org/schema/jee"
    xmlns:tx="http://www.springframework.org/schema/tx"
    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
            http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee.xsd
            http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd
            http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd">

    <!-- 配置bean -->
    <bean class="com.edu.springmvc.AmazingWorldController"/>    
</beans>

AmazingWorldController.java

package com.edu.springmvc;

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;

@Controller // 指定所需要映射的类
public class AmazingWorldController {
    @RequestMapping("/amazing")  //前端传递来的请求用哪个方法处理
    public ModelAndView model(HttpServletRequest request, HttpServletResponse response) throws Exception {
        ModelAndView mv = new ModelAndView(); //创建ModelAndView对象
        mv.addObject("amazing", "Amazing World"); //设置参数
        mv.setViewName("/amazing.jsp");  //指明指定响应的jsp页面
        return mv;  //返回ModelAndView对象
    }

}

amazing.jsp

<%@ 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>Amazing World</title>
</head>
<body>
${amazing } <!-- EL表达式，获取amazing值 -->
</body>
</html>

7.打开浏览器，输入地址如下：
这里写图片描述

创建成功！

创建个简易的Spring MVC项目

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